DO NOT UPGRADE YOUR INJECTORS!!!! <-----READ THIS!!!
#11
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Originally Posted by willwren
Originally Posted by 95naSTA
Did you consider the ZZP mini afc?
Just trying to understand what your saying.
#13
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Well it makes sense they are 36# injectors stock (sounds a bit high but close enough) because for example ZZP makes ~400WHP with the Eaton M90 blower (It'* max limit). 36# injectors are basically good up to ~400WHP, so it basically makes sense. When the factories do injectors, there really is not that much difference in injector designs. The only difference is the size of the holes to determine if its a 21# or a 36#. Not like the injector is actually bigger or something. GM put a bigger injector for saftey because when the injector gets older, it could get clogged a bit so it loses some of its spray capacity, by having a bigger injector can compensate for that and not have any worries about motor'* blowing up. Also have a bigger injector because the */C cars run richer in order to make sure it does not blow up since these engines dont have intercoolers so the */C. So the air inlet temps are very high so run a rich mixture to make sure does not detonate from the hot air inlet temps. Hope that kinda makes sense and put a little light bulb over everybody'* head.
#14
I cant find the tech artical now but a few years back I read one on Thrashers site that stated larger injectors were not necessary, even for some pretty heavily modified cars.
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Actually, I had to go to 42.5 lb injectors this weekend. Ran out of fuel in the upper rpms with 14lb of boost. Pegged the injectors at hi 21'*. The engine is moving a ton of air. I'm almost to the end of my MAF table limit. Pushing 1105 with an 1150 limit.
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11-20-2005 08:16 PM