2.0T FSI Forged Engine Build Has Started, Big Turbo Build.

Craig Cull

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Hi everyone, hope your all well.

Well it's official, the modding bug has definitely grabbed me by the balls.

I bought a 2.0T fsi engine for a very small price of £200. The teeth had been ripped clean off the cambelt, but fortunately most of the damage was done on idle. So minus 4 valve in prints in each piston and 16 bent valves. The block (which was my main reason for purchase) is in very good condition.
The head has very minor damage but that's not the end of the world as it has the revision B inlet cam which is awesome. So other than a few spare parts just incase, the rest of the parts head wise are a goner, but for £200 who can complain?

Here's some pics as I got straight to work yesterday to see just where I had thrown £200...





















So the end result is bent valves and damaged pistons....
Sorted, let's just clean it up, remove the pistons and get it ready for a rebuild!







Looks like a hot spot on each of the bores, but other than that, no shiny bores and no scoring, so looks like we're good to start honing.





<a href="http://s1282.photobucket.com/user/craigcull/media/598AEBB5-7E3B-4F4B-A973-330FDBB3DBC2_zpsxcrcxq2p.jpg.html" target="_blank"><img src="http://i1282.photobucket.com/albums/a536/craigcull/598AEBB5-7E3B-4F4B-A973-330FDBB3DBC2_zpsxcrcxq2p.jpg" border="0" alt=" photo 598AEBB5-7E3B-4F4B-A973-330FDBB3DBC2_zpsxcrcxq2p.jpg"/></a>



Other than the damaged pistons, the rods and shells look in good shape, so if I bend a rod in the meantime I guess I've got some spares lol!



So that's where I'm at, I will add everything as I progress, with details on my plans. Although this going to be a build for next season, I still iam to ensure that this build exceeds all expectations.... I'm not gonna get into figures just yet, but it's gonna be the a weapon! :) please stay tuned.
 
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Well done I hope,on the price paid.

What are you planning on using for pistons and rods,and which turbo kit?
 
Well done I hope,on the price paid.

What are you planning on using for pistons and rods,and which turbo kit?

Cheers Alex,

I want to go for integrated engineering riffle drilled rods, with mahle pistons although I'm still not sure which size I require as of yet. Also going for oversized valves and stronger springs (although I will be using my current head for this) race head gasket, timing belt and chain with tensioner. Girdle kit if I really want to be safe. Turbo wise, I fancied a Borg Warner EFR, but I need a custom manifold which is more expense. So I think I'm gonna go for an Owen developments HTA3071. I've heard good things!
 
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Cheers Alex,

I want to go for integrated engineering riffle drilled rods, with mahle pistons although I'm still not sure which size I require as of yet. Also going for oversized valves and stronger springs (although I will be using my current head for this) race head gasket, timing belt and chain with tensioner. Girdle kit if I really want to be safe. Turbo wise, I fancied a Borg Warner EFR, but I need a custom manifold which is more expense. So I think I'm gonna go for an Owen developments HTA3071. I've heard good things!


I've been really pleased with Owen Developments ,and couldn't recommend them highly enough.

They supplied my GTX3076,and gave hours worth of advice over which turbo would be best for what I wanted,and that again speaks volumes for them.

There seems to be a fair bit of debate over valve sizing,and most seem to say that the stock sizing is OK,but it's worth moving to either Supertech or Ferrea valves and springs if you want to lift the rpm limit.

I used PEC rods and Wossner pistons(with lowered CR) on mine,and one interesting fact seems to be that most if not all of the aftermarket rods probably originate in the East,but are finished locally by each supplier.
We determined that a while back when waiting for my rods.....every supplier had the same problem with supply delays,at the same time,from IE,to PEC and so on.

IE make a good girdle kit as I'm sure you know,and I also cannot say enough about Boulekos Dynamic,if you want a new inlet manifold.
 
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I've been really pleased with Owen Developments ,and couldn't recommend them highly enough.

They supplied my GTX3076,and gave hours worth of advice over which turbo would be best for what I wanted,and that again speaks volumes for them.

There seems to be a fair bit of debate over valve sizing,and most seem to say that the stock sizing is OK,but it's worth moving to either Supertech or Ferrea valves and springs if you want to lift the rpm limit.

I used PEC rods and Wossner pistons(with lowered CR) on mine,and one interesting fact seems to be that most if not all of the aftermarket rods probably originate in the East,but are finished locally by each supplier.
We determined that a while back when waiting for my rods.....every supplier had the same problem with supply delays,at the same time,from IE,to PEC and so on.

IE make a good girdle kit as I'm sure you know,and I also cannot say enough about Boulekos Dynamic,if you want a new inlet manifold.

Well I'm glad you've popped up mate because everything I know is from doing my own research, so first hand experience is exactly what I was hoping for :)

I was going to go for ferrera as they in all honesty are the only supplier I know about at present. This car is all I'm going to have until it dies so the sky is the limit really. I was told if wanted a really big turbo that I'd need to have plenty of rpm to compensate for the lag, so my way of thinking was let's rev it out with a turbo that has less lag and can hold boost all the way to say 9000 rpm? (maybe a tad optimistic)

What do you think?
Either way I love he fact of a hybrid garrett turbo, so owen developments is definitely the supplier for me turbo wise, especially with an external wastegate.

What figures have you seen with your build then mate? I've heard the girdle is a must just to reduce flex in he block, makes sense really...
 
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Well I'm glad you've popped up mate because everything I know is from doing my own research, so first hand experience is exactly what I was hoping for :)

I was going to go for ferrera as they in all honesty are the only supplier I know about at present. This car is all I'm going to have until it dies so the sky is the limit really. I was told if wanted a really big turbo that I'd need to have plenty of rpm to compensate for the lag, so my way of thinking was let's rev it out with a turbo that has less lag and can hold boost all the way to say 9000 rpm? (maybe a tad optimistic)

What do you think?
Either way I love he fact of a hybrid garrett turbo, so owen developments is definitely the supplier for me turbo wise, especially with an external wastegate.

What figures have you seen with your build then mate? I've heard the girdle is a must just to reduce flex in he block, makes sense really...

My thread is a bit of a marathon,but the basics were an ATP turbo kit initially,as they were about the only suppliers apart from BSH,which needed a LOT of cutting and fabricating to make a US based kit work on one of our cars.

You now have CTS Turbo kits as well as APR and for big power,CTS or ATP would be my choice.

I would personally see 8000rpm as a more realistic limit,if you don't want to be worrying about it all holding together on a daily basis,and WMI would also be advisable along with the biggest intercooler you can squeeze in(mine is a Proalloy but there are others such as Airtec and THS as well).

I have a friend who's been very helpful along the way with mine,who has a Golf R turning out over 650bhp on pump fuel,with a 3576 turbo,and the same inlet manfold as mine,but his is built to space rocket standards.

The block seems pretty rigid,and so far,after 3yrs,we haven't seen any problems with mine,but the girdle is worth considering if it's a build from scratch.

The RS4 injectors or possibly Golf R injectors should get you to around 550bhp,but you will also need an uprated LP fuel system over 440bhp,where the stock system on an S3 begins to run out of flow,and earlier on a non S3 system.
There are now RS3 pumps to be had,although I know a few people have had problems getting them to work properly,and I used a piggy-back system from USP Motorsports,that is boost controlled,and cuts in at around 8psi boost,and the stock pump then drops back until the PWM controller requires it.

Sounds a bit kludgy,but the thing is that it works perfectly,where the RS3 pump has had issues.

Over 550bhp,or earlier if the lambda readings indicate,you will need extra injectors,which is where the Boulekos manifold comes in.






Loba Motorsport supply Supertech Inconel valves at a decent price.

http://www.loba-motorsport.com/shop/audi/s3/2.0-tfsi-195-kw-265-ps/
 
Also forgot to say....

We were getting 490bhp at 2bar previously,before the new manifold was put on,and the inlet cleaned out,removing a serious amount of coal from the inlets,and on "only" 1.9 bar now,it's considerably quicker.

Before.....





After.....

 
My thread is a bit of a marathon,but the basics were an ATP turbo kit initially,as they were about the only suppliers apart from BSH,which needed a LOT of cutting and fabricating to make a US based kit work on one of our cars.

You now have CTS Turbo kits as well as APR and for big power,CTS or ATP would be my choice.

I would personally see 8000rpm as a more realistic limit,if you don't want to be worrying about it all holding together on a daily basis,and WMI would also be advisable along with the biggest intercooler you can squeeze in(mine is a Proalloy but there are others such as Airtec and THS as well).

I have a friend who's been very helpful along the way with mine,who has a Golf R turning out over 650bhp on pump fuel,with a 3576 turbo,and the same inlet manfold as mine,but his is built to space rocket standards.

The block seems pretty rigid,and so far,after 3yrs,we haven't seen any problems with mine,but the girdle is worth considering if it's a build from scratch.

The RS4 injectors or possibly Golf R injectors should get you to around 550bhp,but you will also need an uprated LP fuel system over 440bhp,where the stock system on an S3 begins to run out of flow,and earlier on a non S3 system.
There are now RS3 pumps to be had,although I know a few people have had problems getting them to work properly,and I used a piggy-back system from USP Motorsports,that is boost controlled,and cuts in at around 8psi boost,and the stock pump then drops back until the PWM controller requires it.

Sounds a bit kludgy,but the thing is that it works perfectly,where the RS3 pump has had issues.

Over 550bhp,or earlier if the lambda readings indicate,you will need extra injectors,which is where the Boulekos manifold comes in.






Loba Motorsport supply Supertech Inconel valves at a decent price.

http://www.loba-motorsport.com/shop/audi/s3/2.0-tfsi-195-kw-265-ps/

I did start reading your thread but as you say it's long lol!

It's also not going to be my daily driver any more and will only come out to play in the summer so another reason to go to town, much to the wife's despair....

Injector wise, I was going to send my S3 ones over to HGP Turbo in Germany for them to convert them to 1400cc capacity which i have been told is perfect along with keeping the stock spray pattern. Also the USP in tank fuel pump to sort the low pressure fuel delivery, although until now I'd not heard of people fitting the 5th injector on the TFSI, although I know they love it on the 1.8t.
IF i can see 600 whp at all 4 wheels, I will be a very happy man.
I've just purchased WMI tonight aswell so that's another box ticked. This engine build may have just stepped into a 2 year build as apose to just the 1 lol!
 
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I did start reading your thread but as you say it's long lol!

It's also not going to be my daily driver any more and will only come out to play in the summer so another reason to go to town, much to the wife's despair....

Injector wise, I was going to send my S3 ones over to HGP Turbo in Germany for them to convert them to 1400cc capacity which i have been told is perfect along with keeping the stock spray pattern. Also the USP in tank fuel pump to sort the low pressure fuel delivery, although until now I'd not heard of people fitting the 5th injector on the TFSI, although I know they love it on the 1.8t.
IF i can see 600 whp at all 4 wheels, I will be a very happy man.
I've just purchased WMI tonight aswell so that's another box ticked. This engine build may have just stepped into a 2 year build as apose to just the 1 lol!

Yours is a TFSi,if I've read this right,in which case I think you're going to be stuck with the high pressure TFSi injectors,and I'm not sure what HGP offer,but most of us use RS4 injectors up to around 550bhp.

The system that I and my mate use is not a 5th injector,but an extra fuel rail,and 4 sequential injectors,controlled by an off-board ECU,mapped for timing,boost,temp etc etc.
 
Yours is a TFSi,if I've read this right,in which case I think you're going to be stuck with the high pressure TFSi injectors,and I'm not sure what HGP offer,but most of us use RS4 injectors up to around 550bhp.

The system that I and my mate use is not a 5th injector,but an extra fuel rail,and 4 sequential injectors,controlled by an off-board ECU,mapped for timing,boost,temp etc etc.

To be honest rick @ unicorn developments pointed me in the direction of HGP, and they ain't cheap, £1500 for a set of injectors or £1200 if you send them yours, he's happy we will see some big power with the right fuel delivery to the Hpfp. I see what you mean by a separate fuel rail, but others have told me that the RS4 injectors tend to suffer from a lot of black smoke due to the spray pattern. But then again running big power, it's gonna smoke so I suppose that's not really an issue.
So you have a separate ECU controlling your extra rail and injectors?
 
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To be honest rick @ unicorn developments pointed me in the direction of HGP, and they ain't cheap, £1500 for a set of injectors or £1200 if you send them yours, he's happy we will see some big power with the right fuel delivery to the Hpfp. I see what you mean by a separate fuel rail, but others have told me that the RS4 injectors tend to suffer from a lot of black smoke due to the spray pattern. But then again running big power, it's gonna smoke so I suppose that's not really an issue.
So you have a separate ECU controlling your extra rail and injectors?

If you've gone to Rick,then I'm sure you'll be fine.

HGP aren't cheap for sure,and the RS4 injectors come in a lot cheaper,and are used by lots of people,and I know Rick has some ideas in mind for injector control.

Mine doesn't smoke much except under full throttle,but I don't see that as much of an issue,as long as the car is running fine.

As to the extra rail on mine,I do things incrementally,so the manifold and rail were fitted first,and the setup for it will follow.....what I initially had in mind was an 034 Motorsport controller,but I've been steered off that and onto another controller,but the principle is the same.
The off-board controller looks at boost,throttle position,MAP,water and air temp,and runs the injectors sequentially from that lot,but again,Rick had some ideas on that angle,so you're in the right place.

I also have to run an external boost controller,as the stock ECU can't cope with inputs above 1.7bar,and he can help on that also,where the complexity of setting up an external controller can be a pain.
Mine works well,but needs a specialist to set up the gain,duty cycle etc,and that's way beyond me.
 
If you've gone to Rick,then I'm sure you'll be fine.

HGP aren't cheap for sure,and the RS4 injectors come in a lot cheaper,and are used by lots of people,and I know Rick has some ideas in mind for injector control.

Mine doesn't smoke much except under full throttle,but I don't see that as much of an issue,as long as the car is running fine.

As to the extra rail on mine,I do things incrementally,so the manifold and rail were fitted first,and the setup for it will follow.....what I initially had in mind was an 034 Motorsport controller,but I've been steered off that and onto another controller,but the principle is the same.
The off-board controller looks at boost,throttle position,MAP,water and air temp,and runs the injectors sequentially from that lot,but again,Rick had some ideas on that angle,so you're in the right place.

I also have to run an external boost controller,as the stock ECU can't cope with inputs above 1.7bar,and he can help on that also,where the complexity of setting up an external controller can be a pain.
Mine works well,but needs a specialist to set up the gain,duty cycle etc,and that's way beyond me.

To be honest mate, a lot of that has gone straight over my head, that's some mega advanced **** lol! I think I'll try the rs4 injectors just for the price alone, at least that will free up my S3 injectors to send over to HGP.
I guess it's just going to be a case of getting the build right first, followed by turbo, then start looking at fueling additions. Thanks for all the info mate, I will look into what you've said in more detail, hopefully it will guide me in the right direction :)
 
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To be honest mate, a lot of that has gone straight over my head, that's some mega advanced **** lol! I think I'll try the rs4 injectors just for the price alone, at least that will free up my S3 injectors to send over to HGP.
I guess it's just going to be a case of getting the build right first, followed by turbo, then start looking at fueling additions. Thanks for all the info mate, I will look into what you've said in more detail, hopefully it will guide me in the right direction :)

I came here after a lot of time with Cosworths,so much of the Audi stuff to me was pretty foreign!

If I can be of any help at all,just drop me a line and I'll reply here.
 
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I came here after a lot of time with Cosworths,so much of the Audi stuff to me was pretty foreign!

If I can be of any help at all,just drop me a line and I'll reply here.

Much appreciated mate, I will most likely hold you to that lol! It's gonna be a long road but doing it right is my main aim. :)
 
Much appreciated mate, I will most likely hold you to that lol! It's gonna be a long road but doing it right is my main aim. :)

So many people here and on VAGOC were very helpful and open in giving me information which I'd otherwise have had to find by trial and error,and that,along with AMD and their ability to turn my ideas into working reality,saved me a huge amount of time and money along the way.

If I can return that favour,then I've done at least some of what those guys did for me......it's great fun,and I still love finding new things to do to the car.
 
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So many people here and on VAGOC were very helpful and open in giving me information which I'd otherwise have had to find by trial and error,and that,along with AMD and their ability to turn my ideas into working reality,saved me a huge amount of time and money along the way.

If I can return that favour,then I've done at least some of what those guys did for me......it's great fun,and I still love finding new things to do to the car.

As much as when things don't always go to plan and wind me up to the max, I must love it coz I keep on doing it.
Think it's the end result when ya see the huge power gains, especially when you've done it yourself from scratch.
Job satisfaction guaranteed :)
 
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good work fella, wish i knew more about engines to make a lil project :(

with the looks of this ull be upgrading your brakes so instead of throwing away the brembos youve got now u can donate them to me ;) haha
 
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good work fella, wish i knew more about engines to make a lil project :(

with the looks of this ull be upgrading your brakes so instead of throwing away the brembos youve got now u can donate them to me ;) haha

Haha! If I start needing bigger and stronger brakes then i maybe a little worried haha!

Think if anything I may need to upgrade to the 2 piece discs further down the line, but hopefully not the calipers :)
How are you getting on with your potential brake upgrade? Noticed your selling your wheels? Nice wheels, just a tad big for how I drive, a pothole would see me with a space saver on in no time, otherwise I would be interested
 
Haha! If I start needing bigger and stronger brakes then i maybe a little worried haha!

Think if anything I may need to upgrade to the 2 piece discs further down the line, but hopefully not the calipers :)
How are you getting on with your potential brake upgrade? Noticed your selling your wheels? Nice wheels, just a tad big for how I drive, a pothole would see me with a space saver on in no time, otherwise I would be interested

good stuff man outcome of this is gunna be mega

Ive put the brake conversion down the priority list atm

Yeah sad to sell em but my new ones will stop that sadness lol
 
good stuff man outcome of this is gunna be mega

Ive put the brake conversion down the priority list atm

Yeah sad to sell em but my new ones will stop that sadness lol

Hopefully mate, if I do it right.

I'll look forward to seeing the new additions! Can only imagine what it will look like! :)
 
Any more updates Craig?

Funny you should ask mate. We've been toying with the idea of using the rods from the engine we bought (BYD Edition 30) and putting them in the current BUL engine, along with new rings, belts, chains and tensioners etc etc, then Winding it up some more with water meth injection. Should see the engine run nicely while we're in the process of forging the BYD engine.

Hopefully break that 400 bhp & 400 lbft target

Then drop the new turbo and forged engine in, in one go. Atleast that's the thought anyway. Gives me 2 engines then aswel.
 
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And a spare to sell to me when your finished lol.

Haha! Andy, I did consider selling the complete engine with the k04 hybrid and S3 injectors once the forged build is complete, but I will probably test the water when the time comes. Probably not a bad idea to sell to be honest :)
 
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Very tempted and i now have my clutch and flywheel ready to fit,a 034 cat,034 catchcan ,just need pump, rods and fmic.í*½í¸†

I'm afraid it's sold now mate, only thing I have left is the Autotech internals.
 
Just bought s3 injectors and a new k04 flange to help with the swap,just need a fmic ,a pump and rods to complete the build kit and money for labour etc,getting close.Do i need anything else ie bigger maf etc?cheers Andy
 
So far i have collected ko4 turbo,s3 injectors,milltek exhaust system ,034 large bore cat ko3 flanged +k04 spare flange,s3 dump valve housing,034 intake pipe,panel filter, clutchmasters steel sm flywheel and drake performance st3 clutch.
 
So far i have collected ko4 turbo,s3 injectors,milltek exhaust system ,034 large bore cat ko3 flanged +k04 spare flange,s3 dump valve housing,034 intake pipe,panel filter, clutchmasters steel sm flywheel and drake performance st3 clutch.

Which FMIC you going for? Have you got the Hpfp? Have you gone for internals or LOBA, APR etc?
 
If you've gone for Autotech internals then the RS4 fuel return valve is worth doing in the process. But to be honest, if your doing the rods aswell, then I would be tempted to buy either a LOBA or APR Hpfp and go for the 155bar fuel return valve. That way the two most likely things to stop you getting big numbers will be the intank fuel pump and lack of water meth injection.
 
But you'll still see 360bhp easily. Also a pcv catch can set up is worth investing in. Don't bother with the pcv revamp kit as it increases crank case oil pressure when running high boost. Which in turn causes any weak seals or gaskets to give up first. Also go for 5w40 oil as apose to the 5w30 which is normally used.
 
Got a 034 catch can kit but when it was fitted it wouldnt run properly,so back to stock until i get some time to really check it out.I do fancy water meth system too.I was thinking apr or loba pump but not sure on the fmic ,my last one was custom made for my a3 by concept racing which worked really well.The awe tuning looks good but way too much money,the 034 looks not much bigger than the combined standard side mounts ,not sure on the cx racing ebay ones how efficient they are but they look good value.
 
Got a 034 catch can kit but when it was fitted it wouldnt run properly,so back to stock until i get some time to really check it out.I do fancy water meth system too.I was thinking apr or loba pump but not sure on the fmic ,my last one was custom made for my a3 by concept racing which worked really well.The awe tuning looks good but way too much money,the 034 looks not much bigger than the combined standard side mounts ,not sure on the cx racing ebay ones how efficient they are but they look good value.

I custom made my FMIC with all the mikalor clamps and Samco hoses etc for £400 all in. The Intercooler was from Germany will handle 45psi and has plenty of flow. Unfortunately had to modify the bumper slightly for the pipe work. Also had to buy a pipe beading tool @£150
 
But you'll still see 360bhp easily. Also a pcv catch can set up is worth investing in. Don't bother with the pcv revamp kit as it increases crank case oil pressure when running high boost. Which in turn causes any weak seals or gaskets to give up first. Also go for 5w40 oil as apose to the 5w30 which is normally used.

I've been through the catch can phase...I think....

I had a Forge can etc fitted to mine around the 10 000 mile mark,and thought that would be the solution,until the first engine tear-down at 30 000 mile,and then again at 60 000 miles when the Boulekos manifold went on.

Each time,it was like a new seam of coal had been found,with the amount of crap that isn't collected by the catch can,thanks to the breathers at the rear of the cam cover etc,that dump into the turbo inlet.

My new solution is going on shortly....
 
I've been through the catch can phase...I think....

I had a Forge can etc fitted to mine around the 10 000 mile mark,and thought that would be the solution,until the first engine tear-down at 30 000 mile,and then again at 60 000 miles when the Boulekos manifold went on.

Each time,it was like a new seam of coal had been found,with the amount of crap that isn't collected by the catch can,thanks to the breathers at the rear of the cam cover etc,that dump into the turbo inlet.

My new solution is going on shortly....

I've read a lot of threads in this with a lot of people with mixed emotions.

I went for the revo stage 2 which blocks off the inlet manifold. Just 2 pipes to the catch can and the usual pcv to crank case breather.

5000 miles ago I cleaned all the inlet valves, recently pulled the engine out and I was astonished at how clean the valves were in comparison to before hand.

I was also surprised at how much it actually catches and how much isn't oil lol
 
I've read a lot of threads in this with a lot of people with mixed emotions.

I went for the revo stage 2 which blocks off the inlet manifold. Just 2 pipes to the catch can and the usual pcv to crank case breather.

5000 miles ago I cleaned all the inlet valves, recently pulled the engine out and I was astonished at how clean the valves were in comparison to before hand.

I was also surprised at how much it actually catches and how much isn't oil lol

I don't know if I showed you some filthy pictures.....

Before.....



And after....




And the solution.....



 
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I've read a lot of threads in this with a lot of people with mixed emotions.

I went for the revo stage 2 which blocks off the inlet manifold. Just 2 pipes to the catch can and the usual pcv to crank case breather.

5000 miles ago I cleaned all the inlet valves, recently pulled the engine out and I was astonished at how clean the valves were in comparison to before hand.

I was also surprised at how much it actually catches and how much isn't oil lol

My 034 catch can sounds exactly the same set up as the revo one,is there any vent or cap ,or is it a sealed pressurised system,my 034 one is a sealed type.Does the catch can need the mapping altered to suit or is mine rough idling due to something else,its fine when running stock pcv.Craig do you have a link for the intercooler that you have please.
 
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