turbo sizing for road race tracks

[randy 77zt]

for those members who have used different turbo size combos-which would be best for sears point or laguna seca-rpm range runs about 3000 to 6500 max boost 16 psi on union 110 nascar gas.i usually floor it about 50 feet before apex-but i run a basically stock 81zxt engine.i run those driver school -open track events in my car.and drive it to the track and drive it to work.

[Drax240z]

****My opinion and a summary of what I have heard and know, this is not based on personal experience with these turbos.

 

By far the most common performance turbo out there for the L28 these days is the T3/T04 hybrid, with usually a .63a/r. Its nice because it bolts to the old exhaust manifold, and will support 400hp+. I can't imagine you needing more turbo than that on a nearly stock engine. If you wanted to, you could play with a/r's a bit to get a turbo that lagged less or more, and shift your power curve up or down. Best to talk to a turbo company about that, bell engineering, or turbonetics, etc.

 

Can't say I recall the specifics on your car, are you running a quality intercooler?

 

 

 

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"Gimme Fuel,

Gimme Fire,

Gimme that which I desire"

-Metallica

 

Drax240z

1972 240z - L28TURBO transplant on the way!

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