Can someone suggest a brand of injestors that they seem to think are the best. and maybe a size, Just a little history of the engine combo. 383 w/AFR 195s, COMP ROLLER HYD 224/230 X 518/524 112LSA. 1:52 magnum rollers, HSR, 10.2 CPR, 1-3/4 SLPs, w/3in cat back. PRO BUILT 700R4 W/2200 STALL, 9in w/3:89. moats bunrer so I can tune, Thanks for your help.

 

I think most people on here would recommend SVO 30 or 36lb injectors.
You can also buy a set of 28 lb (LS1 style) injectors for $100 so that's a good deal too.

 

Thanks TPIgirl, what combo do you have? what kind of HP do you think 28/30lb injectors will support, and do they change the responsiveness of the engine like a larger throttle body?THANKS

 

Right now I have a 350 TPI auto in an 89 Irocz.

Well I can only positively speak for the 28 lb LS1 injectors being able to support at least 550 RWHP at 60psi fuel pressure. I don't know the limits on the others though there are charts & formulas on the web to calculate those theoretical limits. Some people measure their power differently, and some people also factor in duty cycle to determine the limits on the injector.

I know you have to adjust the calibration on your chip to get the injectors to match your engine properly, but I don't think you can expect any change in response without retuning for the new injectors.

 

Thats cool, I will contact some of the mfg, and see what they recomend because I dont just want to guess. Its a brand new 383 combo and thought someone might have a like combination that would tell me what they are running. I have a 350 tpi now too and it runs really well even though it has 198k on it LOL. Just going to get one ready before it let me down. Thanks for you help TPIGIRL, and look forward to speaking with you again...

 

ZEEYYA, if you haven't already found yoru answer for calculating fuel injectors, try this page.

http://www.injector.com/injectorsele...891aabc14d0044

 

Thanks very much BOSS355..

 

You're welcome ZEE. Just be sure to notice that all the calculations are done at 43.5 psi, as by reading this board enough, you will probably be adjusting the fuel pressure upward of that.

Eric