View Full Version : do i need bigger injectors?


Thule
02-29-2012, 09:40 PM
i have a 90mm nitrous outlet plate system. on a H/C/I 346, and was goin shoot 150.

i have 36lb's injectors (SVO) can they handle the shot?

karpetcm
02-29-2012, 09:55 PM
I had 30lb SVO injectors which flowed on a LS1 about 36-37. If you have 36lb SVO injectors i think they flow 42+lb atleast, not sure but someone will chime in hopefully. I would upgrade the fuel pump as well since you already have H/C with a 150 shot you are at the fuel pumps limits if not past.

soundengineer
02-29-2012, 10:11 PM
if its a wet shot, you dont need to change anything for the injectors..
if its a dry shot...A 36lb injector might be pushing it..

either way.. you need to upgrade the fuel pump.

Thule
03-01-2012, 01:17 AM
it is a wet shot.

i have the racetronix fuel system.

if i remember correctly the injectors are SVO #32

camscam02
03-01-2012, 03:15 AM
yes you are fine if you have the racetronix upgrade on a wet kit

Thule
03-01-2012, 05:40 AM
i knew that :)

i was under the impression that the injector size would not matte because i have a wet system, but had a conversation with my friend that just would not accept that.

then i was called brave in another thread here, so i decided to check out if i was wrong after all

thanks for the answers

87silverbullet
03-01-2012, 01:59 PM
Brave for shooting a 150 on an LS1? You must of ran across a newbie.

I shoot 150 on 6 cyl engines.

soundengineer
03-01-2012, 06:24 PM
to be straight forward...
a 150 shot on a stock bottom end will live all day long assuming you dont cause detonation from too much timing for your setup...
200 starts to get iffy...thats when you start to break stuff in the bottom end...

guys are doing more with no immediate issues...but its borrowed time for the most part..
and everybody doing a 200 or bigger, will be replacing a motor sooner than originally planned(unless they are trying to see how much they can spray to blow it up so that they can buy the stroker they wanted to buy anyways..LOL)

NitrousExpress
03-01-2012, 11:31 PM
You will be fine with the setup that you have. on a wet kit your nor relying on the injectors themselves to introduce the extra fuel, that is done of course by the fuel solenoid. Now if it was a dry system then yes you would need to upgrade them.