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Author Topic: 2x AUDI s2 on vems  (Read 22671 times)

Offline GTOBB

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2x AUDI s2 on vems
« on: August 05, 2010, 02:14:42 am »
Hi ALL
want to show my job here
my and my friend audi S2 on vems both tuned by me
I use 1.1.27 firm.

GTO's s2 spec:
- piston woessner 81.5mm
- camshaft 7A
- rods DIGITUN
- head ported  by my friend BORYS
- exhaust mani from ebay -  made in China but modified
- Turbo GT30R
- IC China 230x550
- sa VEMS
- 630cc siemens
- 5x COP 2.0 TFSI
-  fuel pump walbro 255
- MAC solenoid to boost control
- exhaust 3"
- Bilstein B6
- wheels  18" 225/40/18
- front brakes  323 s4 and porsche 996 monoblok 4 piston
- clutch by Radzikowski with double pressure plate
- boost is 1.75bar
















BRAKES










2nd STASZEK's S2 got similar setup but he use holset turbo and only 7A exhaust cam and 2bar boost
some vids:

http://www.youtube.com/watch?v=daz_fGX2_VU
http://www.youtube.com/watch?v=6lCKBf907ME

« Last Edit: August 05, 2010, 03:31:01 am by GTOBB »
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Offline Jamo

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Re: 2x AUDI s2 on vems
« Reply #1 on: September 14, 2010, 02:37:36 pm »
Loving the S2 setup, are you a member on www.S2forum.com ?
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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #2 on: September 27, 2010, 08:08:55 pm »
Yes

GTO

Gt30R was sold
waiting for 35R.

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Offline AVP

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Re: 2x AUDI s2 on vems
« Reply #3 on: September 27, 2010, 08:22:26 pm »
it is really interesting that on 1.75 bar boost you only made 431hp. is that wheel or crank?

why did you change to GT35?
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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #4 on: September 28, 2010, 02:04:34 pm »
is on crank measured by dynomet on road
hot air inside mani, outside was 35deg C, not fine tuned
(havent time to tune own car)

chinesse mani cracked , now must weld new one  and want to test bigger turbo
got second intake cam - will try to retard it in order to lost overlap, i use combo from 7A now.

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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #5 on: January 16, 2011, 11:06:04 pm »
new year = new photos
 







THIS GT35R is amazing - full boost is on 4100RPM
0.86 A/R turbine helps to breath at high rpm.
like it much like old one :)


STILL TUNE
« Last Edit: January 16, 2011, 11:09:57 pm by GTOBB »
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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #6 on: March 26, 2011, 07:47:53 pm »
small update, boost from 1.5 at middle to 1.9bar boost at top
need some leaner mixture and +0.1-0.2 bar more...

http://digitun.pl/foty/GTO%27s_S2/35/S2_gto_pomiar1.pdf
http://digitun.pl/foty/GTO%27s_S2/35/S2_gto_pomiar2.pdf





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Offline max

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Re: 2x AUDI s2 on vems
« Reply #7 on: April 29, 2011, 12:20:01 pm »
Nice project :) As I scrolled down to the last pictures I thought.. cmon, get yourself a reverse inlet many.. oh.. wait, ahaa.. here it is  ;D Is it from wagner?
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Offline Jamo

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Re: 2x AUDI s2 on vems
« Reply #8 on: May 02, 2011, 06:38:28 pm »
That's an MTM or Dahlback reverse manifold
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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #9 on: May 03, 2011, 09:33:45 am »
YES- MTM , but not know is ori or chinesse copy...

few pics more







last week i switch to 1.1.88
starting without problem, needs retune boost and set boost in cells, before on 1.1.27 P is 120, now 17 I, D is the same.
waiting now for new cams  from cat .


« Last Edit: May 03, 2011, 09:43:04 am by GTOBB »
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Offline boostd audi

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Re: 2x AUDI s2 on vems
« Reply #10 on: May 17, 2011, 01:24:51 pm »
this gives me so much motivation.. i  have been looking for a coupe for years in the states..

i finally found one and i get it this week..

love your car
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boost addict's Vems powered Audi VRT s2

Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #11 on: August 03, 2011, 10:07:08 pm »
some news...

I switched to 1.1.94 , connected KS-4 to anytrim and have got good knock kontrol now...
boost control work good too for me..



 found touareg v10 calipper , mercedes G disc 345mm  and got new wheels :)
 now brake are strong ...





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Offline audis2turbo

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Re: 2x AUDI s2 on vems
« Reply #12 on: August 04, 2011, 11:02:55 am »
Hello,
what do you use for "GAIN Settings" at your KS4 Phormula Knock sensor?
Greets
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Offline Jamo

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Re: 2x AUDI s2 on vems
« Reply #13 on: August 04, 2011, 12:05:41 pm »
Quote from: GTOBB on August 03, 2011, 10:07:08 pm
some news...

I switched to 1.1.94 , connected KS-4 to anytrim and have got good knock kontrol now...
boost control work good too for me..



Anymore specific detail on how this was done? and the settings you have in vemstune for this?  thanks
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Offline GTOBB

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Re: 2x AUDI s2 on vems
« Reply #14 on: August 05, 2011, 10:56:42 am »
GAIN 7



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