Biggest fuel pump that doesn't overpower Vette regulator/filter
01-31-2019, 02:37 PM
#42
Well I figured I would update my results after the dyno with the WS6 Racetronix 340 pump w/ hotwire kit and C5 regulator/filter. Install was simple, instructions were included. They're tech support is great, answered all my questions. My car made nowhere close the hp I though it would as I think I was getting either belt slip on the D1 or the pulley size is just too big for the setup (cast iron 5.7). Anyways, it made 9 lbs of boost and made 515 rwhp and 483 ftlb torque through a 4L80E (unlocked Yank Pro Series single-disk converter) on 18 degrees of timing. Ran out of time on the dyno so didn't get to let the IATs drop and add more timing. No fueling issues here.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
01-31-2019, 03:09 PM
#43
TECH Enthusiast
Well I figured I would update my results after the dyno with the WS6 Racetronix 340 pump w/ hotwire kit and C5 regulator/filter. Install was simple, instructions were included. They're tech support is great, answered all my questions. My car made nowhere close the hp I though it would as I think I was getting either belt slip on the D1 or the pulley size is just too big for the setup (cast iron 5.7). Anyways, it made 9 lbs of boost and made 515 rwhp and 483 ftlb torque through a 4L80E (unlocked Yank Pro Series single-disk converter) on 18 degrees of timing. Ran out of time on the dyno so didn't get to let the IATs drop and add more timing. No fueling issues here.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
02-01-2019, 08:55 AM
#46
TECH Enthusiast
Yeah, I know. I've been waiting to see what of power people are making with the 340/c5 filter before maxing them out. I'm wanting to upgrade my 255 and not sure if I want to go with twins or not.
02-01-2019, 12:46 PM
#47
Well I figured I would update my results after the dyno with the WS6 Racetronix 340 pump w/ hotwire kit and C5 regulator/filter. Install was simple, instructions were included. They're tech support is great, answered all my questions. My car made nowhere close the hp I though it would as I think I was getting either belt slip on the D1 or the pulley size is just too big for the setup (cast iron 5.7). Anyways, it made 9 lbs of boost and made 515 rwhp and 483 ftlb torque through a 4L80E (unlocked Yank Pro Series single-disk converter) on 18 degrees of timing. Ran out of time on the dyno so didn't get to let the IATs drop and add more timing. No fueling issues here.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
Edit, I should also add that I run stock fuel lines and fuel rail, and 80 lb injectors.
But seriously thank you for letting us know, and keep us updated on any more gains!!
02-01-2019, 04:48 PM
#48
TECH Enthusiast
02-01-2019, 05:32 PM
#51
You know, I debated using Lonnie's dual setup but ultimately it came down to getting a fuel system done in somewhat of a hurry that would still work for my current setup. Lonnie was backed up around Christmas time. Had the 340 pump setup in no time from WS6Store. Down the road if I go to a FMIC, more boost, and meth, I would switch it out to dual pumps, but this setup works pretty well, I don't see why I couldn't push 600 rwhp with the 340 pump and 80 lb injectors.
02-01-2019, 07:19 PM
#52
TECH Enthusiast
You know, I debated using Lonnie's dual setup but ultimately it came down to getting a fuel system done in somewhat of a hurry that would still work for my current setup. Lonnie was backed up around Christmas time. Had the 340 pump setup in no time from WS6Store. Down the road if I go to a FMIC, more boost, and meth, I would switch it out to dual pumps, but this setup works pretty well, I don't see why I couldn't push 600 rwhp with the 340 pump and 80 lb injectors.
04-02-2019, 01:42 AM
#56
04-03-2019, 12:24 PM
#58
Be aware the the '98' only' yellow bulkhead connector will not support fuel pumps that require more amps than the stock pump and/or Racetronix's upgraded 255 with the hot wire kit. The threshold is 14 amps for the 255 lph. The Racetronix 98 kit supports up to about 500 to 550 rwhp.
The 99-2002 bulk'head connector can be upgraded to support up to 28 amps. The 99 connector will NOT adapt to the metal retainer on the 98 fuel sender module
Racetronix has a 98 dual 450 pump wiring harness kit that could be adapted to run a larger 340, 450 or larger single pump. However, for dual pumps each single terminal in the 98 connector only supports up to 14 amps, so that same harness can't support more two 255 lph pumps. Each single terminal won't work with dual 340 or two 450 pump like the two terminals in the upgraded 99-2002 bulkhead connector that each support up to 28 amps.
It's all explained on the Racetronix site.
Be aware that the return inlet reduces down to 5/16 inch at the metal bulkhead connector. So when you run a 6 an return line to it, you need a reducer down to 5/16.
Whether that's a critical bottleneck on the return side, with gas probably not.
The 99-2002 bulk'head connector can be upgraded to support up to 28 amps. The 99 connector will NOT adapt to the metal retainer on the 98 fuel sender module
Racetronix has a 98 dual 450 pump wiring harness kit that could be adapted to run a larger 340, 450 or larger single pump. However, for dual pumps each single terminal in the 98 connector only supports up to 14 amps, so that same harness can't support more two 255 lph pumps. Each single terminal won't work with dual 340 or two 450 pump like the two terminals in the upgraded 99-2002 bulkhead connector that each support up to 28 amps.
It's all explained on the Racetronix site.
Be aware that the return inlet reduces down to 5/16 inch at the metal bulkhead connector. So when you run a 6 an return line to it, you need a reducer down to 5/16.
Whether that's a critical bottleneck on the return side, with gas probably not.
Last edited by dlandsvZ28; 04-24-2019 at 07:55 AM.
04-10-2019, 12:18 PM
#60
Im having a brain fart right now after reading all this lol.
Would the corvette reg. be tuned for a flat ifr table or the opposet??
By the way i have a buddy who has a turbo truck, using a vette reg and aem 340. His fuel psi is a steady 70psi at idle and crusing. His ecu had to be tuned for the pressure diff. AFR are correct while crusing and boosted but i used a flat ifr setting. I feel like it should have been map/kpa based.
Im geussing the diff is if it has a regulater tht is vaccum or boost referenced. Correct??
Would the corvette reg. be tuned for a flat ifr table or the opposet??
By the way i have a buddy who has a turbo truck, using a vette reg and aem 340. His fuel psi is a steady 70psi at idle and crusing. His ecu had to be tuned for the pressure diff. AFR are correct while crusing and boosted but i used a flat ifr setting. I feel like it should have been map/kpa based.
Im geussing the diff is if it has a regulater tht is vaccum or boost referenced. Correct??