Time for a build thread....big turbo
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I run maf less on my s3 lot better for the air intake as it can be made bigger and stay that size all the way to the turbo
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To be fair,it hasn't really restricted things so far on mine,as it's already around the 500bhp mark.
The ATP exhaust manifold however is restrictive at the sort of flow planned,and likely to be limiting both bhp and torque,hence the swap to a good tubular manifold.
The bigger turbo thats on the way is going to need the stock MAF housing to be removed or widened,and remapping for that would be easier to simply eliminate it.
The car will run without a MAF,as you know,but I want to get this done properly,and actually have that mapped out.
There's a nice solution on the way,but I need to know the software and mapping for that.
In the meantime,while I wait for that,we can get on with fitting all the hardware.
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I like the redundancy offered by having both a MAF and MAP sensor,but yes,I think this is going to be the way forward.
Mine is mapped for maf less as I'm running a 3"intake from the air filter to the turbo then stepping up to 4" to join to the turbo
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id leave it up to the tuner. and what they think will be best.
You can always fit a bigger maf housing to suit whatever size intake you want to run, S4/RS4/RS6 maf housings etc. are all huge. And its not difficult for a tuner to calibrate for what ever size, whilst retaining the refinement and safety of having that extra sensor.
I have an rs4 maf housing and its a 3.5 inch intake allll the way to the turbo. More than adequate for my setup.
Tuffty i believe is using a 4 inch intake with similar size housing.
You can always fit a bigger maf housing to suit whatever size intake you want to run, S4/RS4/RS6 maf housings etc. are all huge. And its not difficult for a tuner to calibrate for what ever size, whilst retaining the refinement and safety of having that extra sensor.
I have an rs4 maf housing and its a 3.5 inch intake allll the way to the turbo. More than adequate for my setup.
Tuffty i believe is using a 4 inch intake with similar size housing.
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The option is running a different ECU so that was pretty interesting to me.
Just need to get the loose ends worked out for that.
great build thread you have here ive just skim read it for the last couple of hours and its been really insiteful.
looking at that breather system your running is the cam cover needed with that as i would love to stop the build up of crud on the valves completely without the massive cost of the cam cover and i know your not running them yet but extra injectors just to keep the valves clean.
i just want to do away with anything thats recycling gasses and crud but without huge cost as i dont want mess in places where it shouldnt be like on the valves or in the turbo.
do you have any pointers?
feel free to pm me if you would rather not discuss on your thread.
looking at that breather system your running is the cam cover needed with that as i would love to stop the build up of crud on the valves completely without the massive cost of the cam cover and i know your not running them yet but extra injectors just to keep the valves clean.
i just want to do away with anything thats recycling gasses and crud but without huge cost as i dont want mess in places where it shouldnt be like on the valves or in the turbo.
do you have any pointers?
feel free to pm me if you would rather not discuss on your thread.
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Hi Al...thanks.
The cam cover is a part of the system,as the stock cover isn't plumbed for any of those fittings.
What the kit does is to remove all but the single breather from the cam cover,via the right-angle fitting and hose you can see,and also feeds the crank breather into the catch can.
That means the OEM cover's rear breathers which empty into the turbo inlet,are removed,and in theory(we haven't opened up the inlet manifold yet)there are not breathers feeding into the inlet.
For comparison...
The whole thing was about £800 from Integrated Engineering in the US.
The cam cover is a part of the system,as the stock cover isn't plumbed for any of those fittings.
What the kit does is to remove all but the single breather from the cam cover,via the right-angle fitting and hose you can see,and also feeds the crank breather into the catch can.
That means the OEM cover's rear breathers which empty into the turbo inlet,are removed,and in theory(we haven't opened up the inlet manifold yet)there are not breathers feeding into the inlet.
For comparison...
The whole thing was about £800 from Integrated Engineering in the US.
Thanks for your reply it seems rather expensive but i guess its a small price to pay to remedy the clogged up valves if it turns out that it works.
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I guess it wasn't cheap,but I was fed up having the top end cleaned out,and a conventional catch can won't catch it all.
The downside to this system is emptying the can on a regular basis,and a couple of other issues over fitting,which meant the carbon filter was relocated,to make way for the can.
It also smells a bit of hot oil after a hard run....
Im sure the smell could be fixed if it ever bothered you by extending the filter away from the engine bay or into the flow of air under the car although personally i quite like the smell of hot oil..
Im going to look into doing this myself now there does seem to be a few companies making these covers.
Im going to look into doing this myself now there does seem to be a few companies making these covers.
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I live the smell of oil in the morning...LOL
There are a few around but I haven't seen Eurojet around for a while and you need to be careful that the cam cover oil breather is well made as a few problems had occurred with one manufacturer when a piece of the vent dropped into the cams.
The IE one is welded.
That's the route I decided to go with mine. Picking Alex's brain before my decision (thanks mate!) and also with the understanding that the vent to atmosphere on top of the can would be messing up my engine bay a little with oil mist (and smell), I opted for a line feeding down venting below the engine. I have included a blue arrow to where my line feeds down, right side of the catch can.
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That's a big old turbo LE-S3 what have you got fitted and whose map are you running if you don't mind me asking
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Alex sorry for the off topic but can you guys please smell your oil caps for me?
Does it smell like gasoline?
This sounds like some sort of fetish.....
In any case,I don't need to smell my oil cap,as the catch can takes care of that need for me...
(OK...yes it does have a bit of a gasoline smell to it,but not like when I sniff the petrol filler......which I only do very occasionally now,as I'm trying to get over that one...)
Hahahahhaha no pun intended there
I wish that I've sniffed my oil cap before having issues with the car.
My oil cap smell kinda bad. Not sure if the very high sulfur content in our ****** fuel plays a role here.
I can see some of that stinky beige liquid residue in my catchcan too.
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Hahahahhaha no pun intended there
I can see some of that stinky beige liquid residue in my catchcan too.
That stuff is nasty.
I took the can to bits the first time I drained it,and regretted it for a few days after,as everything,including me,stank of whatever that crap is made of.
So.....I had a very bright idea,and got a few syringes,and some narrow gauge plastic tubing etc,to thread directly into the can from the top.
Yes...great idea,all very neat and tidy except the crap dissolves joins in acrylic plastics.....great.
But seriously, that thing looks huge! That or the foam packing whatsits in the picture are very small
As much as I can't take him seriosuly, Clarkson is very correct on one subject - more power is good!
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But seriously, that thing looks huge! That or the foam packing whatsits in the picture are very small
As much as I can't take him seriosuly, Clarkson is very correct on one subject - more power is good!
I think it is quite large....
I'll get it on the bench at AMD and then take a few pics for scale to match with the "smaller" turbos I've had...LOL
I was thinking of something like this....
The old GT3071 and the 3076,and maybe line the 3582 up with the 3076...
S88 YRS
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It's a Boulekos with an extra fuel rail and port injectors.....those need to be plumbed in sometime.
I swear... This thing looks like it will disrupt the spacetime continuum, once spooled up!
Are you sure it won't accidentally suck in a bird or a small animal?
Are you sure it won't accidentally suck in a bird or a small animal?
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I take a measure of inspiration from my friend Stefan who's gone way beyond me with his Golf,and uses a 3582 on his car and he swears by this thing.
When all said and done what sort of power and torque figures are you expected Alex?
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That's a very good question.
The RS4 injectors will not flow enough for more than about 540bhp from what I've been told so definitely no more than that.
The turbo is capable of up to 700bhp so I need to get the second injector rail working and mapped but just getting this running right now is enough.
I'd expect the new exhaust manifold to help but I'll have to wait and see and hope it all fits.
Wow that's some serious power! It's awesome to see you build your car like this honestly, props to you!
As an aside, my factory tyre size is 225/40/18, using 8J alloys any idea what offset I need to use a 235/40/18 tyre to prevent rubbing ? (Taking into account you are running 245s) ?
(Only on the front - wanting to keep rear at 225 width)
As an aside, my factory tyre size is 225/40/18, using 8J alloys any idea what offset I need to use a 235/40/18 tyre to prevent rubbing ? (Taking into account you are running 245s) ?
(Only on the front - wanting to keep rear at 225 width)