Dyno run, think I have a problem.

Strato

Strato

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This is a dyno run a year ago, with 1,5 bar pressure if I remember correctly, presently running on 1,4bar, car is running good without any problems.
A few days back while discussing with a freind I mentioned to him the torque fig that was rising close to 50 kg and fading fast, probably because of the exhaust silencer, exhaust is 76 from downpipe and upto after the catalist, and the silencer is 63mm, my concern is the the torque figure, I think I have been very lucky getting away not breaking any conrods (engine has never been opened up). Turbo is Garret rs 28/63 and I have never heard of anyone using this turbo and having this torque, unless the dyno is showing wrong figures.
If someone can advise Id be very much obliged.

DSC00004.JPG
 
360lbs is quite a lot on a stock engine. Especially when it comes in with a bang at 4k on that turbo.
You are pushing it. But I'm not sure what advice you are looking for? Do you want people to tell you to turn it down? Which id imagine you wouldn't be too happy doing.

You have to take into account dyno lottery as well. Take it elsewhere and get a more recent figure if you are worried.
 
As Karl said really, that is a lot of torque for standard internals and I'm surprised it hasn't "put a leg out of bed" yet.

You got three options;

1) Keep playing the rod lottery by leaving it as it is (potential for scrapping the engine)
2) Reduce the torque levels back to a safe level, though why have a bigger turbo and tune to K04 levels?
3) Open the engine and fit rods.

Option 3 would be my choice.
 
I suppose u guys are right, I have reduced boost to 1.3 bar 19 psi today hope that will be enough for a couple of months untill I have aside the money for the upgrade. In the meantime will try check on another dyno.
 
Havnt posted for quite some time, just for the record the dyno run figures above are way out from what the car actually was making! (It was making less, prob 20hp lower.
So lets forget that and get to the point of intrest, Engine is running still good , still stock internals but turbo has been upgraded to a Gtx 28/67.
Yes I know! every one will tell me Im gambling and im going to experience the flying conrod. (but I have a spare engine thats been rebuilt very slowly as funds are low and Mrs cant find out!)
I have already done 2500 km with 20psi boost pressure(total km of engine is 120000). The engine managment program was done on the dyno and car was tested with 22psi boost pressure, it made 338 whp, Parts replaced are custom clutch and flywheel single mass, full exhaust system 70mm custom made, down pipe, custom exhaust manifold, Tial dump valve and Tial external wastegate. also the piping in the engine bay.
I did this as a freind has the exact same set up with over 40000 km (engine has over 300000 km) and he is using it as a daily driver and always on 23 psi, also another car a audi tt 1,8 front drive has a 30/71 turbo we havnt dynod that one and it has stock internals.I think he has 25000 km on this setup with out issues.My point is that it can be done if you are willing to take the risk and not spend 5-6000 euros all at once, and by the way I paid 1500 euros for the other engine .Dont know if any other guys have done this and how much they lasted

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This was the old turbo gt 28/60r
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and the new

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2 more photos, all comments welcome. Just for the record if I run into any breakdowns Ill post it.


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sorry about the photo but just cant get a better one.
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superkarl said:
Where is your wastegate?
Click to expand...
You Cant see it and didnt take a photo when it was installed , but looking at the engine bay top left just a few cm below the height of the turbo, and the screamer pipe is just behind my passenger side, your driver side, will take a photo next time it goes up in the garage.
Look at post 5 the last 2 photos you can see the screemer pipe just showing bottom left side of photo.
 
Last edited:
Turn up the volume as the sound isnt so loud used a phone and a gopro and forgot to take off the waterproof casing.

 
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I know this is a dead thread, but I have already 30000 km on this set up without any hickups, closed engine 338 HP at the wheels. Running 1.5bar boost. Car has approx 150000km.
 
Last edited:
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Im running a GT2871R on stock internals, but ive tuned the car to have a flat torque curve of 260lbft from 3000-6500rpm, resulted in 322bhp.
However my car has 250000km (155k miles) so i dont want to push it till i rebuild with rods.
 
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Amazing.! If I am right we are making approx the same torque, I think Im 20 - 25 lbft more. But that might be the dyno just loosing as there are always differences.
 
that'll be a shame if it breaks and all those bits of engine smash up the turbo charger on the way out the exhaust pipe - the car looks amazing.
 
Well eventually it broke!
Valve fell in and smashed the piston.
Car was running the last month on 1.3 bar as temps have risen here in Greece.
Had been building in the meantime the AGU motor the last 3 months.
Wiseco pistons
integrated rods
Ferrea valves and springs
upgraded bearings
arp bolts all around
Managed the turbo not to get damaged as this happned nearly at idle, so only thing I did was change the thrust bearings once it was taken apart for inspection.
See some photos of the carnage, and forgot to say this is daily driver and had 60 k km on this set up, I believe if the head had been done with valves it would have lasted much more. Every one was expecting to get rods bent but it came out on the head.
Been running it in now for the last week once its done will take it for a remap.

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the valve is smashed in the piston its still there u can see it.


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And the new engine

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Well need to correct the make of pistons and rods,
they are both Ross , the others were used on another engine I have for another project.
 
Got my new brakes, need still to bed them in.


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audi upgrades
Video is dead link.

Sent from my Nexus 6 using Tapatalk
 
Comes up my side "not found"

Sent from my Nexus 6 using Tapatalk
 


This is with the old engine.
 
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