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| 383tpimachine | 32lb injector limit? | ||
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Master Guru
 
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What power can my 32 lb injectors support on boost?
Plan on adding a vortec but dont know if I will need bigger injectors (yet). I am putting down around 375rwhp now and plan to add 5-7lbs of boost on top. |
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Posted on: 2011/10/4 20:48
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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| Jonnymac | Re: 32lb injector limit? | ||
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Guru Newb
 
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I'm make 422 at the rear using 255 lp pump with 32 lb injectors @ 43.5 and running at 80% duty cycle.
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Posted on: 2011/10/18 9:24
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| 383tpimachine | Re: 32lb injector limit? | ||
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Master Guru
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So I will need new injectors. Thanks
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Posted on: 2011/10/18 21:19
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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| FICINJECTORS | Re: 32lb injector limit? | ||
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Gold Sponsor Vendor
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on a mild supercharged engine the 32's will top out at about 375CHP
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Posted on: 2011/10/19 1:15
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| 383tpimachine | Re: 32lb injector limit? | ||
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Master Guru
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Im at 400rwhp now. I will add the sc when I build a new engine and do it all at once. What size inj will support 700rwhp at 85% DC?
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Posted on: 2011/10/19 16:44
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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| FICINJECTORS | Re: 32lb injector limit? | ||
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Gold Sponsor Vendor
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auto or manual?
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Posted on: 2011/10/19 19:48
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| 383tpimachine | Re: 32lb injector limit? | ||
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Master Guru
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Manual. 6800rpm redline.
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Posted on: 2011/10/20 1:04
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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| AKS_Racing | Re: 32lb injector limit? | ||
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Guru
 
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What all have you done to your '85 to deliver almost 500FWHP? Just curious.
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Posted on: 2011/10/20 1:27
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Miss Nasty: Bigger SBC with C4SP and just shy of 30 psi boost. Low 9.0s with low 160+MPH with a decent 60' (1.72 is decent for me these days). :thumbleft: |
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| 383tpimachine | Re: 32lb injector limit? | ||
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Master Guru
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Highly ported HSR, heads, cam, 383, 10.75cr, this that and a generous dyno.
Dyno said 406rwhp and 445rwtq. More than likely it is 370-375rwhp and 420-430tq. I can pull a 12.1 sec ls1 camaro by half a car shifting correctly. Car is setup for autox and roadracing however which is why my goal is just 600-650. Anymore I doubt I could handle it. Im talking with TEA to make me some heads that flow what I want on a bigger (4.125) bore at 9.5 cr. Im in the process is specing my 400ci boost ready motor. |
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Posted on: 2011/10/20 3:33
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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| FICINJECTORS | Re: 32lb injector limit? | ||
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Gold Sponsor Vendor
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For that RWHP on a supercharged engine you will need 75lb injectors minimum to get an 80% DC.
In that area I have 72lb Siemens mods, and our 80lb Siemens mods. Price for either is $399 for the set of 8, flow matched within 1%, viton o-rings installed, and a 1 year no questions warranty. Shipping as always is a flat $7 |
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Posted on: 2011/10/21 0:04
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| 383tpimachine | Re: 32lb injector limit? | ||
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Master Guru
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72 will be the ticket. When it comes time to order I will be getting in touch. Thanks for your time and help. My bosch 3s are badass btw
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Posted on: 2011/10/21 4:22
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1985 Atomic Orange 400YSIT56-Racecar build 1970 El Camino-Awaiting LSX |
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