Do You Need New Injectors When Upgrading Your Turbo

[tay]

got a pair of greddy's upgrade turbo's do i need to upgrade my injectors aswell or does the factory work find with them?

[SKYPER]

Not sure what model of Skyline you have i.e GTS or GTR (I guess it's a RB20DET)

and size of the turbo's like TD04, TD05, TD06, etc. But you should upgrade injectors,

fuelpump and AFM + ECU when fitting a bigger turbo or when stock engine is boosted

up to higher boost levels like above 14psi with stock turbo on say a RB20DET.

Factory injector size should work ok with factory turbo (GTS) or turbo's (GTR)

at mild boost levels. With RB20DET you might be able to fit intake, exhaust

and maybe a bigger intercooler before exceding the safe A/F (Air/Fuel) ratio.

Edited January 5, 2008 by SKYPER

[R31Nismoid]

Turbos would suggest RB26, and Trust items generally are 350rwkw = injectors, ECU, and a LONG list of other mods to support them

[R34 VSPEC]

If on GTR should still be Ok provided the tune is done properly. Will not realise the full potential of your turbos though as injectors will max out, duty cycle etc...air flow meter limited.

I did turbos and Apexi FC and had Matt SPRYS from Gold Coast tune the car 34GTR, done safely with 294rwkw with no problems. Now getting retune with big injectors, pump, regulator and Z32 airflow to push it well into 300rwkw zone.

[mad082]

even though you may not max out your stock injectors you would be close, so i would say do it, because a few hundred $$$ now is cheaper than a rebuild.