6 replies to this topic

[Gremlin]

I've just put a 12G295 head on my 998 and I have a AAU needle in the 1.5" HS4, we need more petrol throughout the rev range apart from idle, because if we wind the jet down a bit, it runs a lot better but doesn't idle

Also, we did not touch the distributor but it is backfiring ocasionally and running on?

Any help appreciated

[Gremlin]

Forgot to say we've got a smoothed out ram pipe, carburettor and alloy inlet manifold, lcb manifold - (2" at exit) and 2" straight through system

[lrostoke]

try AAA or AAM

 

http://www.mintylamb.co.uk/suneedle/

[KernowCooper]

The 2inch exhaust on a 998 is going to cost you a bit of power though, to big for a small bore motor

[Gremlin]

advance the timing to 16 degree's btdc at 1500rpms.........But listen out for any signs of pinking under load and if it pinks knock it back a little.......

Thanks very much, I'll try that, is that with the vac pipe conected or disconnected?

[jaydee]

Vacuum disconnected

[Gremlin]

Cheers guys, thats what I thought, just confirming