When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Members,
looking for advise and lessons learned here. I just purchased a FAST LSXr 102 mm for my 2005 manual (6 speed) Z/51. I currently have a Vararam, ARH Headers with cats, NPP exhaust, and a tune. Currently sitting at 377/377 at the wheels. I have 13.4 miles on her
I ordered the FAST fuel rails and accompanying hoses, etc so complete the setup. I also run the Auto-meter electronic fuel pressure sensor so I'm keeping that as well (currently get steady and consistent 60 PSI)
My question is should I reuse the OEM injectors, buy new OEM injectors, or buy new larger injectors?
Also ... With the possible change in injector and the slightly larger diameter fuel rail..with my Fuel pressure PSI increase/decrease ?
Just checked an old tuning log of my 2005 C6 LS2 after a header install and the injector duty cycle (injector capacity) was only at 79% during WOT. So your injectors being too small should not be a problem but you should get a re-tune as you have substantially changed the airflow in your engine. At that time your injector capacity can be verified.
Just checked an old tuning log of my 2005 C6 LS2 after a header install and the injector duty cycle (injector capacity) was only at 79% during WOT. So your injectors being too small should not be a problem but you should get a re-tune as you have substantially changed the airflow in your engine. At that time your injector capacity can be verified.
Thank you and yes, after install..straight to the tune shop here locally I use
You are able to keep your OEM injectors with the installation of the FAST. At your power level injector upgrade is a waste I had stock injectors up until I swap to Trick Flow heads and bumped my compression up. The FAST 102 is a great upgrade for the LS2.
You are able to keep your OEM injectors with the installation of the FAST. At your power level injector upgrade is a waste I had stock injectors up until I swap to Trick Flow heads and bumped my compression up. The FAST 102 is a great upgrade for the LS2.
Thanks for the visual tease until I get mine installed . Any got ya's for installation or watch out items...seems to be pretty dummy proof for an install...?
Agreed , 15 min swap , plenty of threads to read up on , tape the rear 4 bolts, holding them up as far as they can go , makes removal and installation a breeze
Members,
looking for advise and lessons learned here. I just purchased a FAST LSXr 102 mm for my 2005 manual (6 speed) Z/51. I currently have a Vararam, ARH Headers with cats, NPP exhaust, and a tune. Currently sitting at 377/377 at the wheels. I have 13.4 miles on her
I ordered the FAST fuel rails and accompanying hoses, etc so complete the setup. I also run the Auto-meter electronic fuel pressure sensor so I'm keeping that as well (currently get steady and consistent 60 PSI)
My question is should I reuse the OEM injectors, buy new OEM injectors, or buy new larger injectors?
Also ... With the possible change in injector and the slightly larger diameter fuel rail..with my Fuel pressure PSI increase/decrease ?
use your stock fuel rails and injectors.dont put fast on without having it ported
02-22-2017, 09:27 AM
Adding FAST LSXr to my 05 LS2 - new injectors?
