3100 injector upgrade

[Jbrogan]

ok im putting on 3400 upper and lower intake manifolds and tb. i want to upgrade my fuel injectors too. my questions is what is stock size and what should i upgrade too or should i not upgrade them??? summit sells accel injectors in several sizes, 17 lbs/hr 19 lbs/hr 21 lbs/hr and 24 lbs/hr should i get any of these and which should i get???

[pontiac3100]

if your using 3400 intakes your stocks are fine.
but seeing you have a 96 you could upgrade your pcm so you can run injectors w/ a higher rate.

[IsaacHayes]

But doing so would be pointless unless you had like a 3500 with cam and headers /etc or boost.

The PCM will adjust to your intake mods just fine without running out of fuel. Larger injectors will flood out unless you edit the PCM for their flow rates but you gotta buy a DHP and know what your doing to do that.

[Jbrogan]

my question stil remains on what is the stock lbs/hr on a 96 3100?? i was thinking if it is one of the sizes that is sold i could buy new accel ones and get better performance out of them.

[bszopi]

Why would you want to spend like $400 on new injectors that are the same size? If you are that concerned about them, either take out your existing ones, or buy some used ones and send them off to get flowed, cleaned and balanced (http://60degreev6.com/showthread.php?t=25017).

And a quick search would yield http://60degreev6.com/showthread.php...+injector+rate

[IsaacHayes]

Yup. My 200k mile ones are still running well. Spend your money elsewhere.

[Jbrogan]

um more like $200 and the point was that accel makes some that are designed to give better performance.

[bszopi]

Save your money. You aren't going to get any performance out of just a better spray pattern or what not. And its definately NOT worth $214.39 + shipping. (http://store.summitracing.com/partde...5&autoview=sku)

[Jbrogan]

alright thanks