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.
LS3 injectors are the same as ls7 injectors, I've seen people make 575-600rwhp with them. I'm going to log my next dyno pull the see what duty cycle they are running at.
Interesting... I had thought at that level those injectors were above the comfortable duty cycle range.
Looking forward to the updated dyno numbers.... I hope to do a similar build when my 402 LS2 is ready for a refresh.....
I finally had the time to put it back on the dyno. The best was 573hp/524tq. My stock ls3 injectors are maxed out around 6600. I think I may be able to squeeze some more out of it with bigger injectors. I'm happy with the way it runs for now.
I went back to the OP and reread it. Looks like you netted about 44 hp, and 35-40 lbs torque?
That not bad at all. If you do upgrade injectors, you thinking 60 lb?
Yes a gain of 34hp 33lbs of torque. Yes I'm thinking about getting 60lbs. My idc starts to get to high around 6200 rpm. My afr was a little rich around 12.2. My car is still being tuned remotely by Pat G.
Nice gains! I was 550/503 on Fast 36lbs injectors (42 @ 58psi) and 94% inj duty cycle at WOT. I stepped up to 80lbs injectors and currently still tuning my new setup. Not quite at WOT tuning yet but close and the duty cycle is around 45% now lol! 427 LS3.
01-03-2020, 10:03 PM
