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Gt3040 With 0.7front,1.06rear

sinistaGTR
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discopotato03 Grand Master

discopotato03

Posted
Posted

A proper GT30R unit number 700382-12 would work better with that .82AR turbine housing . GT3040's particularly the Garrett marketed one's are laggy because the GT40 compressor is too big for the GT30 turbine . A better compressor match is the GT37 series wheels used in HKS's GT3037 and that above mentioned Garrett marketed GT30R . In fact that GT30R uses the identical cartridge (CHRA) as HKS's GT3037 56 trim .

Many turbo shops try to say that GT30R 700382-12 is not available in Australia which is B/S , I know Brett from GCG can get them as no doubt others in Aus can if they try . Garrett at Chippingnorton may not stock them but not all Garrett turbos here have to be sourced through Jeffs joint .

Cheers A .

BezerkR32 Veteran

BezerkR32

Posted
Posted

we run .82 on customer cars, start building boost at 2800rpm and see full at 4000rpm. very streetable and run 11.75 @ 121mph at track. lag will also depend on boost controller and intake runner length, cam timing, overall tune. I think 1.06 would be good for track if your on the bottle, otherwise too big, definetaly not streetable.

as my heading states.

just wondering when boost would be likely to come on. looking at getting a gt3040 with 0.7front,1.06rear housings. has anyone got this on there car.

cheers dan

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