View Full Version : injector size?????
5.0literriceeater
03-30-2006, 08:01 PM
I got a question about which injectors to use. I have a small 330cid stroker with 8.5:1 compression, holley systemax intake, very large heads with 2.06 intake valves (yeah, I know, this is set up for serious boost), comp xe274hr cam, 75mm throttle body, 76mm mass air meter, and full exhaust with longtubes. This engine will not be pushed beyond 6500 rpm. Im a poor boy, so I wont be boosting for awhile. I gotta drive it N/A in the meantime. I cant find any info on which injector size to use. Ive got it narrowed down to the 24 or 30 pounders.
Any suggestions?
crimsonblack
03-30-2006, 09:08 PM
The 24's should be big enough for your set-up. The 30's maybe for the 80mm mass air & throttlebody set-up.
91GT347
04-14-2006, 12:46 PM
Ive been through this myself man,with my 331. I'm using 24# myself and havent had a problem. Here's a link to my blog,that may help. http://www.gotstang.com/profile.php?91gt331&blog=1 From what I've seen,a 331 usually falls in the middle. I think you would be fine with either one.
5.0literriceeater
05-08-2006, 08:16 PM
Yeah, either one is going to have a matching maf and a dyno tune to boot. I think I wont have any trouble with either one. Thanks.
tspike
06-14-2006, 02:03 PM
19#'s are good up to 300 hp without getting too exterme cycle times, 24#'s are good up to about 375 - 400 hp but the cycle times get really high. If you plan on anything over 350 hp I'd jump to 30#'s to keep cycle times and life expectancy in the green.
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