max boost on my engine with a gt3582r

[blackS2]

I'm running E85 yes.

My values @ 4 gear, 7000rpm, 2.33bar, lambda 0.79 is 897°C

nice

what cams and head?

(by the way, the mentioned EGT issue only exists on my own S2 ... all the other S2 cars I mapped on VEMS or Motronic are running without any issue )

[V6quattro]

As I remember from BITBURG you are using E85?

I dont know the reason but my EGTs went trough the roof when boosting higher than 1.8 at redline...

I'm running E85 yes.

My values @ 4 gear, 7000rpm, 2.33bar, lambda 0.79 is 897°C

[diesel des]

That's a lot of timing. Odd.

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[blackS2]

id suspect too little timing at high rpm. can you not get more in?

I was running 25.5 deg at 6000rpm and 280kPa...

[GazzaG60]

id suspect too little timing at high rpm. can you not get more in?

[blackS2]

Im also running 2.3bar from 5000-8000

As I remember from BITBURG you are using E85?

I dont know the reason but my EGTs went trough the roof when boosting higher than 1.8 at redline...

[V6quattro]

count this for all turbo's? in the past with my gt3076r i drive on max load with 2.0-2.2 bar boost continuously from 3800-7000 rpm!
so you suggest to drive with no more than 2.1 bar boost continuously on a gt35?
is it true that when you are on a dyno you may set the boost higher with 0.1-0.2 bar steps if you still making power with steps from 15-20 hp until it stops making more power?
this of course with an eye on the iat and max injector duty cycle

Im also running 2.3bar from 5000-8000

[quattro-nick]

count this for all turbo's? in the past with my gt3076r i drive on max load with 2.0-2.2 bar boost continuously from 3800-7000 rpm!
so you suggest to drive with no more than 2.1 bar boost continuously on a gt35?
is it true that when you are on a dyno you may set the boost higher with 0.1-0.2 bar steps if you still making power with steps from 15-20 hp until it stops making more power?
this of course with an eye on the iat and max injector duty cycle

[blackS2]

What did you mean by bad 7a cam timing?

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Both cams were advanced 4deg by adjustable sprocket. For optimal cam setup an adjustable camgear on inlet cam is also needed to adjust both cams individual.

We were not able to get rid of the trigger issues so this was the only dyno run we did.

This engine does not exist anymore - changed everything around the engine but no new dyno run. Trigger issues solved by firmware 1.2.3x last year.

2,4 bar as peak boost and 1,9

this are true numbers... but my intercooler was to small

[Quattronaut]

Bad cam timing and trigger issues are a quite senseless base for a dyno sheet imho...

Garrett shows all his permformance maps, so where is the problem? 2,4 bar as peak boost and 1,9 at peak power rpm are numbers where the turbo is running safe and producing good power. Higher numbers lower turbo efficiency and raise temperatures faster than power, so you need very good IC and headwork to still benefit from that. 2,8bar max and 2,1 at peak power is the range were you getting real dangerous turbo rpms.

[diesel des]

Another 2,2l, RC-SH750, GT3582 0.86, 8:1, 100 octane, 1,8 bar, bad camshaft timing on 7a cams, trigger error at 6500rpm (VEMS 1.1.96 - 2013), stock head. Not able to go over 1,8bar at 6000 because EGT/IAT to high in 4/5/6th gear...

What did you mean by bad 7a cam timing?

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[blackS2]

i find that low numbers for a gt35?

Me too

[quattro-nick]

i find that low numbers for a gt35?

[blackS2]

on the top of the sheet is the result - 331kw/585Nm...

W/M injection was present but off on dyno...

[quattro-nick]

okay,about 340 kw and 570 nm
normaly i not gonna have iat problems because i use W/M injection and this is activated from 0.5 bar until 2.0 bar boost
my goal with gt35 and stock head is 600 hp
once with my gt3076r i've had 520 hp(crank) and 635 nm on the dyno