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injector size question

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Old Jul 22, 2010 | 07:35 PM
  #1  
86z89iroc's Avatar
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Joined: Aug 2008
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From: Illinois
Car: 86 z28 daily, 2 89 iroc-z's
Engine: sbc's
injector size question

i have an 89 lb9 iroc and im doing some serious mods. i know junk the 305 but blocks already machined .30 over and ready to put together. i have a powerhouse 335 stroker kit kb pistons 10to1 compression 5.7 cr1 rods externaly balanced stock 58 cc head zoom double roller timing chain comp cams tpi xtreme energy 269 hyralic roller cam and lifters running stock tpi going to have motorvation do a custom tune prom and headers and custom true duals cause i do custom exhaust at work. my question is what size injector do i need im thinking that 24 lb would be sufficent might need slightly bigger but dont have a desktop dyno to do the calculations. any help would be nice thanks fellas
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Old Jul 22, 2010 | 08:02 PM
  #2  
irocuroc's Avatar
Senior Member
 
Joined: Mar 2008
Posts: 428
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From: nj
Car: 89 iroc
Engine: l98
Transmission: tremec
Re: injector size question

Originally Posted by 86z89iroc
i have an 89 lb9 iroc and im doing some serious mods. i know junk the 305 but blocks already machined .30 over and ready to put together. i have a powerhouse 335 stroker kit kb pistons 10to1 compression 5.7 cr1 rods externaly balanced stock 58 cc head zoom double roller timing chain comp cams tpi xtreme energy 269 hyralic roller cam and lifters running stock tpi going to have motorvation do a custom tune prom and headers and custom true duals cause i do custom exhaust at work. my question is what size injector do i need im thinking that 24 lb would be sufficent might need slightly bigger but dont have a desktop dyno to do the calculations. any help would be nice thanks fellas
24 Bosch 3 are rated at 39psi and we run 43,5 so they are actually 25.3lbs.. That would be plenty..
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