I thought that the Peron would be too big for stage 2+ and would be best suited for the k04 turbos. I have been looking at the vis fuel pump internals as i heard they are kinder on the cam follower than the autotech internals but some advice would be greatly appreciated.
I was thinking of getting the uprated darkside s3 intercooler which is slighter larger than the stock s3 one. Thoughts on this too please.
Down the line i may even go hydrid, bbt or tte. But at the moment i want to get handling and power mods done before getting the map done. Would stage 2+ mean getting a uprated clutch too? Im on stock clutch at 125k miles.
Cheers
Loba and APR are your 'ideal' fuel pump upgrades. They're costly new, but they do come up second hand now and then. Internal upgrades like VIS and Autotech... well the jury is still out. They might be fine, if installed into the existing Hitachi pump body properly. That's the key - clean and accurate installation.
If you're k03 and likely to stay k03, go for an OEM alloy-ended Audi 8P S3 intercooler.
If there's a good chance you'll go for a k04 or k03 hybrid in the future, then a Peron, Wagner, whatever good intercooler might be wise. I personally think the S3 part would be good for a k04 car, as long as the map doesn't push inlet temps too much.
Really, it boils down to the power/performance you want to achieve, and how much headroom above you're willing to pay for. Run a k04 at 20psi and you should have no problems with heat. Run a k04 at 26psi and you'll need to get things right. Translated: Map is very important.
The Darkside cooler you talk about is IIRC a Chinese THS copy, and there are quite a few like it, under different brands.
In summary - if this helps - if and when I go over 300bhp the spec will be as follows:
Loba pump
RS4 return valve
BCS full exhaust (sport cat)
S3 cooler
K04 injectors
K04 (obvs..)
Stay with Ramair intake or go back to OEM airbox
Etuners map at low 20s psi
