Whipple with 43lb injectors
06-01-2006, 10:11 PM
#12
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If i go with a external walbro gsl392 which is a 255lph pump, i think this will be the easiest to install. Is this the right pump for this upgrade or has anyone used a different external pump. Any help would be great
06-02-2006, 03:47 PM
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Do i need to get a new fuel pressure regulator by adding this 2nd pump? Is the walbro 255lph inline fuel pump a good pick for this mod? Or should i install an in tank fuel pump. Is there any that are a direct fit. Thanks alot guys im lost when it comes to fuel pump like i said. I want to make sure that i get everything for this upgrade.
06-02-2006, 04:55 PM
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I too am in the same boat. I got a walbro 255lph made for typhoon's/syclone's but am not sure what all will have to be done to modify it correctly. Or, will an inline be better? I have a whipple w/ 6lbs. and I'm installing a new PCM and 43lb injectors.
06-02-2006, 07:21 PM
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I talked to allen at nelson and he the man that sold me the injectors. He said put them on and put a gauge on it and see what your fuel pressure is. If it is at or above 55psi at WOT you will be fine. 
06-19-2006, 12:58 AM
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Originally Posted by ranwalk
I made 442rwhp with a Whipple on a 6.0 with the stock pump and 42pound injectors
Oh by the way I have a 2003 6.0L with the Whipple and Diablosports tune.