N75 valve

[Leepey74]

Hi all,

Been looking at the relevent threads on the N75H & N75J valves.

Still realy confused on which on to go for!?

N75H

N75J

My engines still standard except for the bailey re-circ.

Any ideas?

Regards

Lee

[jerry]

if you're not chipped i wouldn't bother.

experimenting with these N75's you also run the risk of the engine running too lean

[-=Rob=-]

I've tried the N75J on my Upsoluted Leon. I found that as a lot of people say, the boost comes in earlier and holds slightly longer. But I didn't have the urgency of spool up that I hve with the N75F and the boost throughout the rev range with the J was no where near as smooth as the F, a bit all over the place really, on & off if you know what I mean.

I think these valves either work or don't work on your car. I am happy with the standard F valve, harder initial boost and very smooth through the rev range, but tails off 500rpm earlier than the J.