Quote:
Originally Posted by 911nut
While I agree that CIS could possibly not produce fuel atomization as good as EFI, back pressure won't factor into that.
Any opportunity to reduce backpressure will enhance performance, regardless of fuel injection method.
Backpressure, besides reducing mass flow through the engine, causes reversion which dilutes the mixture with exhaust gases.
Everyone who has updated to the Garrett with CIS reports improvements over the KKK turbos. In fact I myself am upgrading to one this spring.
|
sure it would.
less back pressure and the mixture leans out on top. CIS cant really be adjusted for the fuel needed on boost and have good AFR's across the RPM range while on boost.
I see a of of guys on here with lean problems above about 6k running a low back pressure turbo like a garret.