PDA

View Full Version : N75 help me out



ceas
09-16-2006, 06:54 PM
Recently I installed a boost gauge on my car and realized my car is only holding 4 psi strong. It doesn't not surge at all, and my vaccum is absolutely fine. I am almost positive it is my N75 valve. Now where can I buy one online?!?! I can't find one anywhere!

Just found a website... I'm sure my car came OE with the version C.. could I buy the version H (Race N75) on my car.. even though its stock?

Quattrocket
09-16-2006, 07:07 PM
I think they are pretty cheap at the dealer. like 65 US for the TT one. IIRC

turboquattro068
09-16-2006, 07:09 PM
ill sell you my race n75 one!?

a4cefed
09-17-2006, 04:18 AM
Originally posted by turboquattro068
ill sell you my race n75 one!?

if he passes on it i might need it. gotta check mine today

ceas
09-17-2006, 05:28 AM
can you use a race n75 on a stock ecu?

badassb5
09-17-2006, 06:48 AM
Originally posted by ceas
can you use a race n75 on a stock ecu?

Yes you can

pierce
09-17-2006, 07:23 AM
Why not just go with a forge or EVO?

salz2135
09-17-2006, 07:49 AM
Originally posted by ceas
can you use a race n75 on a stock ecu?

some info to ponder---from Audigeeks:

There are 3 most commonly used versions.

N75C also known as stock N75 works best with stock or performance software.

N75J also known as TT225 N75 is used go give slightly more boost (more torque) then stock N75, in some instances limp mode might occur.

N75H Also Known as N75 Race valve will give up to 3 PSI more boost then the stock version. Although giving huge jump in torque it's almost guaranteed to cause the limp mode.

N75J and N75H work on a principle of delaying the speed, at which the ECU signals are interpreted, more delay equals higher peek boost and elevated boost levels throughout the rev range.

Mad_Audi
09-17-2006, 09:39 AM
i'm having the same problem...



i non-chipped but i'm only holding 4-4.5lbs. you think my N75 has gone bad????

a4cefed
09-17-2006, 09:56 AM
Originally posted by Mad_Audi
i'm having the same problem...



i non-chipped but i'm only holding 4-4.5lbs. you think my N75 has gone bad????
have you checked for boost leaks yet?
if not i would start there.

salz2135
09-17-2006, 10:02 AM
^^^exactly don't just assume it's the n75.

if you've got a buddy the same car you could trouble shoot by swapping parts to see if the problem's solved.

Mad_Audi
09-17-2006, 10:30 AM
hummm....boost leak.....i bet thats what it is....i'll have to give the ole tennis balls trick a whurl.

e.van
10-01-2006, 01:06 AM
Anybody have the full part number on the N75J? Do any VWs have this one (cheaper from Vdub)?

a4cefed
10-01-2006, 04:56 AM
034-906-283-J

e.van
10-01-2006, 09:38 AM
thanks!