injector recomendations for 420a with 10.5/1 comp and bigger cams

[fisher83]

Got a 420a with 268 crower cams and 10.5/1 compression, all forged enteral s....intake, full exhaust, Frankenstein 60mm throttle body. Needing suggestions for injector sizes. Family man thats why its a 420a....got lots of kids, not much time or money....lookin for interchangeable parts....

 

[dsmcrzy]

Honestly if you aren't going to turbo the car injectors wouldn't be with it at this point. The stock ones will be able to keep up with what you have.

If I were you I would look for a way to start tuning. That will be your best bang for you buck at this point.

 

[fisher83]

Well ive read through a lot of different post....most are aimed at 4g63s or turbo 420a's as far as fuel management/injectors....I havent seen a lot on fuel management for n/t.....not sure where to start really....I wasnt sure if having the bigger cams would require bigger injectors even though I was running higher compression. ...where would be a good place to look as far as a decent fuel management system....its a daily driver...wanna try running n.o.s on it some day (if I can convince the wife)...Im trying to make a daily driver with a bit of pep in its step and not break the bank...

 

[jayson427]

I run 24lb injectors on my 10.5 comp with everything else upgraded. On the top end (5.5k-7.2k) I run rich about 12.5 at wot. But you can go with 21 or 24lb injectors and get something to tune them in like an apexi afc. I picked up on for 150 bucks on this website.

 

[dsmcrzy]

Yea you can use the apexi. Probably your best bet for a simple install. All the infor to install it can be found on 2gnt.com.

I don't know what the emission rules are where you live but here in Mass my eclipse only has to pass safety. This allows me to run Megasquirt with out having to pass emissions testing.

In your case if your never going to turbo the car I would stick with the stock injectors, apexi and get a good air fuel ratio gauge that you can log.

 

[xcasbonx]

Like a few others have said, invest that money in tuning equipment, (wideband o2, SAFC, or Megaquirt if you're up for it). The stock injectors will work just fine.

 

[fisher83]

Emissions are pretty rough....workin on getting to a county that doesnt have as much restrictions....I appreciate the suggestions....gonna do some reading and see which one will do the trick....thanks again....