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Forced Induction Superchargers | Turbochargers | Intercoolers

What size injectors

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Old Mar 16, 2010 | 06:08 PM
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Default What size injectors
estimate rwhp so i can buy some injectors. Forged LS2 9.1 compression ratio PTK clone kit, turbonetics T76.
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Old Mar 16, 2010 | 06:34 PM
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Originally Posted by pdasterly
estimate rwhp so i can buy some injectors. Forged LS2 9.1 compression ratio PTK clone kit, turbonetics T76.
suggest you use RWHP for such a calculation. FWHP is the correct number.
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Old Mar 16, 2010 | 07:34 PM
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if i were you i would go with 80lbs.

I thought i could get away with 60's but ended up going to 80's after I watched my duty cycles on the 60's

but you need to give some details so we can help you out

what size motor?how much boost?methanol?etc.
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Old Mar 16, 2010 | 08:39 PM
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Originally Posted by speedcrazy2
if i were you i would go with 80lbs.

I thought i could get away with 60's but ended up going to 80's after I watched my duty cycles on the 60's

but you need to give some details so we can help you out

what size motor?how much boost?methanol?etc.
This.
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Old Mar 16, 2010 | 09:43 PM
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60s should be good to 1000fwhp with a boost reference regulator I believe unless I messed up with the calculator. Meth will help carry some of the load also.
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Old Mar 16, 2010 | 09:55 PM
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grab some siemens 63# injectors OR if you wanna check out Injector Dynamics injectors feel free. I'm running their ID725 injectors, which equates to 69# @ 43.5psi ; 79# @ 58psi

PLENTY of fuel for whatever I throw at it. Great guy(s) that designed the injectors & tested them, all flow data, and nice customer service.
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Old Mar 17, 2010 | 08:06 PM
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stock cubed ls2, forged rods and forged pistons, arp everything, drm engine girdle, ported 317's. I want to run the max my local pump gas will allow and back down a little for safety
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Old Mar 17, 2010 | 08:49 PM
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60s will hold you over for awhile. You will have to redo your fuel system before those 60s top out for sure.
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Old Mar 17, 2010 | 09:39 PM
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i have a single walbro and an aeromotive A1000 on a boost pressure switch, might switch to a dual walbro. Im getting the injectors resized to 80's
Last edited by pdasterly; Mar 18, 2010 at 12:55 PM.
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Old Mar 17, 2010 | 10:12 PM
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the dual pump would be a good idea
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Old Mar 17, 2010 | 10:15 PM
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dual walbros for sure, a single walbro wont even carry 60s to their limit let alone 80s.
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Old Mar 17, 2010 | 11:53 PM
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60's can get you there..
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