1. Will fitting this alone and running the same boost (10psi) give me a power increase on my R34 GTt?
Sort of. people say it's up to 10-15rwkw gain, but really, I'm not sure.
The gain to to be had in stable intake charge air temps.
2a. Will fitting this allow me to run higher boost (say 12psi) safely?
Not really. The turbo limits the amount of boost safe to run, not the intercooler.
2b. What sort of power increase could I expect?
see Q2a
3. Will I lose a noticeable amount of response due to the length of the pipes?
No. I noticed absolutley bugger all difference in response. I fully expected a lack of response, but didn't really notice that much.
4. Is this cooler to big for the stock turbo?
No
5. Some people have noticed improved fuel economy. Is this the case?
WTF? don't know how or why.
6. How different will my power curve be? I just want zippy street performance up to the regular speed limits, I'm not into track.
Not a huge amount different.
7. Will boost come on later? Same? Earlier?
Same
8. What will my power graph look like? Will it be better, worse or same below say 5000rpm?
Same
8. Even at a low price is this modification worth it?
Yep, cos you will always want more power, and above 200rwkw, you need the cooler.
BASS OUT