450 bhp
I am a great believer in getting the " core " of the engine right then building onto it , to many people like to bolt things on like bigger turbo 500 plenum / intercooler without making sure that the bottom end and head have been built to a good specification .
My reasoning for that is that most good enthusiast can bolt a turbo on , fit bigger intercooler , fit 500 bits to inlet side with larger hoses ( or should that be lager
) but sometime compression ratio is too high to take the strain and head gasket / detonation issues ensue .
Spend money on the core first then move forward , I know this does not answer your question just my 2 pennies worth
Will be building one soon for 500 hopefully to go into a new project more of which will be posted here at a later date .
Some years ago we ran 35 lbs of boost in a 3 door with 6.2 CR pistons in , some people were not happy about being out powered by an engine built in a garage on a farm !!!!!
My reasoning for that is that most good enthusiast can bolt a turbo on , fit bigger intercooler , fit 500 bits to inlet side with larger hoses ( or should that be lager
Spend money on the core first then move forward , I know this does not answer your question just my 2 pennies worth
Will be building one soon for 500 hopefully to go into a new project more of which will be posted here at a later date .
Some years ago we ran 35 lbs of boost in a 3 door with 6.2 CR pistons in , some people were not happy about being out powered by an engine built in a garage on a farm !!!!!
Last edited by JonathanJ; Mar 9, 2008 at 06:39 PM.
450 is no hardship, and certainly does not need 35psi or 6.2CR.
The turbo choice is you MOST determining factor, once you know your bottom end will take it.
Personally I would mod the head with a DE SHROUD, as this will bring in boost a LOT lower(500-800rpm lower) and hold onto it a lot higher, about £280.
I would lower the CR a little to run a bit more boost, about .4 lower.
I would use a T38, and ecu aftermarket ECU , as the 3 door one is crap, you might as well go CL+EGT if doing this, for power and economy, I recommend Emerald, and is what I use.
You can chip your existing ecu, but when adding CL, AL, Coipack etc it is much more expensive than aftermarket one that is loads more powerful and better, and user friendly.
It is a bit too much to go in to here but, these are some of your main considerations.
tabetha
The turbo choice is you MOST determining factor, once you know your bottom end will take it.
Personally I would mod the head with a DE SHROUD, as this will bring in boost a LOT lower(500-800rpm lower) and hold onto it a lot higher, about £280.
I would lower the CR a little to run a bit more boost, about .4 lower.
I would use a T38, and ecu aftermarket ECU , as the 3 door one is crap, you might as well go CL+EGT if doing this, for power and economy, I recommend Emerald, and is what I use.
You can chip your existing ecu, but when adding CL, AL, Coipack etc it is much more expensive than aftermarket one that is loads more powerful and better, and user friendly.
It is a bit too much to go in to here but, these are some of your main considerations.
tabetha
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