under powered s2 coupe aby engine 1995

[steve1234]

hello everyone i have just bought a audi s2 coupe 1995 i think the car is not performing to its full potential and seems to be lacking power as my vr6 corrado seems to have more power. Does anyone have any ideas why my audi isnt performing very well? i have had the car tested for faults and no faults have appeared, the engine seems in good working order as it has only covered 100,000 miles the car seems to be in limp mode!!!!!!! Also can anyone let me know if they have any rs 2 parts for sale?????????

[terrybullwon]

Hi

Modding it before its running right, you will fit in just fine

Most likely a boost leak

The search button will become your best friend

[Knight Rider S4]

Agree boost leak sounds the obivous route

[s2dude]

hi Steve

Like terence says...

You need to firstly do a pressure test on the car to see where (not if) it has boost leaks!! (and do teh Mark H mod at the same time!! ** use the advanced search function > and search for "mark h" mod in the title**

pressure test info

next move I would say would be to replace the WGFV (wastegate frequency valve) as these are known to cause trouble and are only £35~
A faulty N75 valve (WGFV) will reduce your boost to wastegate spring level = 0.4 bar iirc

Next stop, if you car doesn't have one would be to fit a boost gauge. Im well pleased I fitted one when I first got my s2 as its invaluable for troubleshooting on a basic level..

good luck

[steve1234]

i have had the boost checked and the garage said it was fine but they said it could be a sensor?????? the s2 should be quicker than the corrado vr6 shouldnt it???????

[terrybullwon]

i have had the boost checked and the garage said it was fine but they said it could be a sensor?????? the s2 should be quicker than the corrado vr6 shouldnt it???????

Which garage did you take it to steve?

And do you know how they set about doing a leak test?

[Crawford_S2]

In fairness to the S2 your corrado comes with 190bhp IIRC and has less to lug around and two wheel drive, might not be as down on power as you think, especially as no fault codes have come up! I would be inclined to give it a good service then a severe pasting for several weeks till a code appears then you will have something to look into. Boost leaks are common though mine was leaking fro ages before i found it!

[steve1234]

hi terry i took it to {all audi}!!! they said the nex thing they are going to fit is the frequency valve to the turbo!!! do u know anyone selling rs2 parts? and where is the best place to purchase rs2 parts?? im hoping to tune up the car once everything is running fine!!!

[steve1234]

thanks crawford you have a valid point but the s2 has something wrong it just dosent have any ooooomfff!!!!! and there dosent seem any turbo surge!!!! it hard to tell as its my first!!!

[terrybullwon]

hi terry i took it to {all audi}!!! they said the nex thing they are going to fit is the frequency valve to the turbo!!! do u know anyone selling rs2 parts? and where is the best place to purchase rs2 parts?? im hoping to tune up the car once everything is running fine!!!

Say Terry Bull Won aloud and slow..

James

I think they ment they were going to fit the N75 which is the WGFV,
you could check the condition of this your self or just replace it. I did my from the stealers at about £40ish

RS2 Bits are avalible what are you after?

[Crawford_S2]

hi terry i took it to {all audi}!!! they said the nex thing they are going to fit is the frequency valve to the turbo!!! do u know anyone selling rs2 parts? and where is the best place to purchase rs2 parts?? im hoping to tune up the car once everything is running fine!!!

Terry Thats why i changed my username

Use the search button at the top for RS2 bits, Vag parts do genuine new from germany and corey sells 034 stuff, MRC are handy lads but don't know if they get lots of bits. Few others on here too. Second hand stuff is usually the bay!

[terrybullwon]

[QUOTE=Crawford_S2;208533]Terry Thats why i changed my username QUOTE]

You can say i told you so, if you like

[s2_bo]

Have you tried to connect a boost gauge? - that should show if your leaking or not.

[steve1234]

thanks lads i appreciate your help, im looking for a rs2 manifold, turbo!!! i want to get roughly 350bhp so what do i need to get?????? oh whens the next s2 meet or show???

[Crawford_S2]

You can say i told you so, if you like

No i couldn't...................ok i can, do you remember at goodwood, i said "oh thats an interesting....................................... ....