Some time in the future I am going to have my car certified and quite frankly the thought scares the crap out of me.
My engine is a Long rod 351W with Brodix Track 1s and Hillbourne intake modifed for EFI.
As I am in the process of finishing the machining I was wondering where I should head with this to get it certified. Bottom end is all finished -zero deck flat tops etc
My questions are
HEADS.
Currently my heads are 68cc which uncut would yield about 9.5:1. should I leave them at this or head to my planned 64 cc which should yield about 10.2:1 with flatops and zero deck. Valves are 2.08 / 1.6. The other option is to use a set of 5.0 HO heads or possibly iron GT40 heads just for certifiaction and swap them later.
CAM
The Cam I plan to run is 238@050 and .560 lift Hydraulic roller. I realise this is bit of an ask to get through cert with so was thinking of using a stock 5.0 HO cam just for certification. Is this a good choice or does anyone think I could make it through cert with the 238 cam ??
Intake (Hilbourne)
I am basically running an IR manaifold which should not be an issue - I would appreciate comment if anyone has had issues geting a cert with this type manifold . - Really should be no different than IDA replica throttle bodies. The other option is certify it with Cobra R (351W) type manifold but dont think I should have too.
Headers.
My headers will be the usual GT40 style bunch of bananas and had planned to end up with 1 3/4 primaries and 3 1/2 inch collectors and mufflers. In Aust I expect I'll have to run cats but have no idea where to head with this . Suggestions very welcome.
Brain
Being electronics engineer has its benefits so have this one handled OK. The only thing will be to get enough dyno time to do an emissions legal setup and also one that makes it sing.
Any relevent thoughts would be most welcome.
Thanks Guys
KB
My engine is a Long rod 351W with Brodix Track 1s and Hillbourne intake modifed for EFI.
As I am in the process of finishing the machining I was wondering where I should head with this to get it certified. Bottom end is all finished -zero deck flat tops etc
My questions are
HEADS.
Currently my heads are 68cc which uncut would yield about 9.5:1. should I leave them at this or head to my planned 64 cc which should yield about 10.2:1 with flatops and zero deck. Valves are 2.08 / 1.6. The other option is to use a set of 5.0 HO heads or possibly iron GT40 heads just for certifiaction and swap them later.
CAM
The Cam I plan to run is 238@050 and .560 lift Hydraulic roller. I realise this is bit of an ask to get through cert with so was thinking of using a stock 5.0 HO cam just for certification. Is this a good choice or does anyone think I could make it through cert with the 238 cam ??
Intake (Hilbourne)
I am basically running an IR manaifold which should not be an issue - I would appreciate comment if anyone has had issues geting a cert with this type manifold . - Really should be no different than IDA replica throttle bodies. The other option is certify it with Cobra R (351W) type manifold but dont think I should have too.
Headers.
My headers will be the usual GT40 style bunch of bananas and had planned to end up with 1 3/4 primaries and 3 1/2 inch collectors and mufflers. In Aust I expect I'll have to run cats but have no idea where to head with this . Suggestions very welcome.
Brain
Being electronics engineer has its benefits so have this one handled OK. The only thing will be to get enough dyno time to do an emissions legal setup and also one that makes it sing.
Any relevent thoughts would be most welcome.
Thanks Guys
KB