10-12-2009, 12:43 AM
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Senior Member
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Join Date: Aug 2007
Location: South Australia
Posts: 581
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 Quote:
Originally Posted by chelo
A log style manifold should work if your on a budget and not pushing high psi.
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Log manifolds have no place on any turbo engine. Why restrict your engine with a poor flowing manifold? It is all about flow, both in and out.
Quote:
Originally Posted by chelo
For your application get a turbo with a smaller a/r housing. Yes you could use a bigger unit but boost will come in later in the rpm range and you would have to rev the engine higher. Building boost at a lower rpm is more fun than waiting for it to kick in hard. Well actually both are fun but it depends on the purpose of your car.
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Controlling detonation in a combination like this will be the biggest challenge. Well flowing exhaust manifold, turbine housing and exhaust system will help reduce back pressure on the engine. This helps reduce comustion chamber teamperature, this help prevent detonation.
A slightly larger A/R turbine housing should give a more progressive torque curve.
I do also prefer a stronger low/midrange torque for daily driving, but the more progressive torque curve/air flow characteristics should be a bit easier to tune the carbies for.
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