jattgunman

iTrader: (1)

I am trying to complete my procharger set up on my 2001 camaro ss and am having a hard time figuring out what size injectors I need.

ZL1Killa

iTrader: (17)

if you are buying the procharger, and don't have a hugely modded car, you can easily to 42# injectors.

I have my STS kit on my 42# injectors and i'm running a 67% duty cycle, soon to be greater, as i'm stepping to 7.5psi (from 5)

jattgunman

iTrader: (1)

The only thing im concerned about is that your 42's are already at 62% I think once you step up to 7.5 psi your injector would be around 80% almost on the edge. I have read that 80% is on the border line

code4

iTrader: (30)

Need more info about the rest of your fuel system. You can get a lot more out of injectors if you have for example dual pumps & a boost referenced regulator.

It seem to me that most guys go with the 42's for a mild setup then mototron 60's are usually the next level. I run the 60's with a boost ref return system on a turbo 346. It's runs really good but I had to learn how to tune them. The only complaint is it still goes rich under deceleration.

dschmittie1

iTrader: (64)

I would think you will be ok with 42lbs injectors at 8 psi and a relatively stock motor. However if you are thinking that you would like to build a motor and up the boost later then I would just go ahead and buy the 60's. When I got my used kit I just turned around and sold the 42's right away and bought 60's that way I had the room to grow

dschmittie1

iTrader: (64)

That is odd my 60's with my BRFPR will go lean on decel when the car goes into DFCO

jattgunman

iTrader: (1)

I wil be upgrading the fuel pump for sure with either a walbro 255 or a racetronix along with the hotwire kit. I dont think I will be going over 8 psi any time soon so as of right now I think 50lbs would work fine.What do you guys think

Frost

iTrader: (45)

This is short pulse tuning and/or deep decel VE tuning that is left undone.


Original poster,

Just buy the 60s, they work great, they are very reliable, and have room for the future. They can be used on a stock engine, so there isn't some issue of being "too big".

BlackZ28629

iTrader: (8)

go with the mototron 60#ers... you won't be disappointed. My friend runs them on his D1SC-procharged TA (10psi) and he has no complaints. As long as you get a good tuner to set them up they should be good with some room to grow.

code4

iTrader: (30)

I got lazy & still haven't turned the dfco back on. But I think I will still get a rich spike on decel. I take my car from 2200 to 9000 DA on a regular basis to race so I am always retuning. So it is always in ready to tune mode.

mike13

iTrader: (27)

Any problems with a car that goes rich under decel? My car goes to about 12.8 under a hard decel (2mile downhill)

Frost

iTrader: (45)

That question is answered in the text of mine that you quoted above

mike13

iTrader: (27)

I understand, I'm talking about harm to the motor.

Frost

iTrader: (45)

I wouldn't think so, but I don't leave cars like that so I'm not 100% sure. I would think it may be a little rough on the plugs, but that's all I can think of.

Derek@BPP

Go with the 60's. and never look back. They may seem a little to large for 5-6psi, but at 8+ you will love them. Buy a large enough injector for your current setup, but leave yourself enough room to grow. You can make 700+ hp easily on the 60's

airforcemanss

iTrader: (23)

what fuel pump do you guys recommend for the guys like the OP boosting on the stock block under 8psi? i will be one of them guys in the future

Frost

iTrader: (45)

pickup the Racetronix plug and play fuel pump kit and wiring harness from Lonnie's Performance: https://ls1tech.com/forums/member.php?u=84358

Lonnies Performance

iTrader: (16)

I'll be glad to help you out if you need a pump or injectors.
I keep both in stock, plus offer tech support to my customers.

Give me a call if I can be of assistance.

AFASTYZFR1

iTrader: (55)

Get the 60's so if you upgrade you are good to go.

LSTUD

iTrader: (2)

better to spend the money once.