not sure if it's stock. Have put it long time, so can't answer that ( housing didnt had any AR numbers, just some random numbers. Traded it for HX35 kkk26 #6.
Acq 10vt - oldschool turbo power
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Hello,
I have also installed the COP 10vt. After 10000tkm the upper part from the spark plug disengaged by the vibrations from the engine. I recommend a holder or something for the ignition coils.
Best regardsAudi Coupe Typ89 10V Turbo - VEMS - Billet K26 - Deka 630 - E85 - 3" ExhaustComment
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Not dead - still fighting for more 'oldschool' turbo power
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Hey!
Have little time, but still on track for more HP
Anyways after latest MODs i felt lack of gains, LOGs didn't show much of improvement and oddly i was getting DP gasket blown frequently. Ok - it was time to test exhaus BP.
And guess what, my 3inch exhaust with 1 muffler on boost is giving me 1bar of BP(total exhaust manifold BP boosting 2bar is 2,4bar)
Thinking that muffler is the culprit i removed it and still the same.
Question is - could this be because of WG that goes to DP and makes some kind of curtain for main stream flow? Because i removed exhaust totally(left DP and WG as seperate) and top end differance was like WOW(VE ego corr went like +12% above midrange to keep 0.8lambda and IAT dropped, EGT didn't any significant differance).
How should i make a proper exhaust? Is 3inch enough for hx40 boosting 2bar+? Still not sure about HP, but my 1100c are @92% DC with E85 so there should be some gasses escaping. Open WG is not an option, as i didn't like it before
How latest exhaust looks with WG inlet could be seen:


Any ideas welcome
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Keep the wastgate separate and use a separate silencer for it. See my urq thread
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Ok, so the issue was...

Now i get 0,15bar peak
P.S. WG dump is now external.Comment
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great job
audi coupe quattro b2 2.2 20vt project (573hp-626nm)
TWINCHARGED power,zero lag
AEM W/M injectionComment
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soon will dyno it, but the difference in top end is day and night
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(stock rods).
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