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Biggest fuel pump that doesn't overpower Vette regulator/filter

 
Old 12-11-2018, 06:59 PM
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Originally Posted by Mavn View Post
I have a gauge on the rail. and just for ***** n giggles we checked it with another one . both read 58 lol
awesome to hear
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Old 01-31-2019, 02:37 PM
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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.
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Old 01-31-2019, 03:09 PM
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Originally Posted by mike135531bubba View Post
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.
Curious to see how much power you end up making with the pump/regulator. Ls1/D1 8lbs here with a maxed out 255.
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Old 01-31-2019, 03:17 PM
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18 degrees sounds like a lot of timing.
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Old 01-31-2019, 05:57 PM
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Originally Posted by stealth355tpi View Post
Curious to see how much power you end up making with the pump/regulator. Ls1/D1 8lbs here with a maxed out 255.
This was with the 340 pump and c5 filter/regulator. I was hoping for 12 lbs since that's what the 4.5" ICs can handle but only got to 9. Still happy with the numbers considering the 80e eats hp like crazy and the converter was unlocked.
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Old 02-01-2019, 08:55 AM
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Originally Posted by mike135531bubba View Post
This was with the 340 pump and c5 filter/regulator. I was hoping for 12 lbs since that's what the 4.5" ICs can handle but only got to 9. Still happy with the numbers considering the 80e eats hp like crazy and the converter was unlocked.
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.
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Old 02-01-2019, 12:46 PM
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Originally Posted by mike135531bubba View Post
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.
EXCELLENT FEEDBACK! FINALLY LOL.

But seriously thank you for letting us know, and keep us updated on any more gains!!

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Old 02-01-2019, 04:48 PM
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Originally Posted by [email protected] View Post
EXCELLENT FEEDBACK! FINALLY LOL.

But seriously thank you for letting us know, and keep us updated on any more gains!!
Have you guys been able to test how much power this setup would support with stock lines?
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Old 02-01-2019, 05:27 PM
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Originally Posted by Kfxguy View Post
18 degrees sounds like a lot of timing.
Is it? lol I was going to push it to 21. Forged bottom end so I wanted to test out the H-beam rods.
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Old 02-01-2019, 05:30 PM
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Originally Posted by mike135531bubba View Post
Is it? lol I was going to push it to 21. Forged bottom end so I wanted to test out the H-beam rods.
yea you were gonna test them alright. Make sure you have a bucket handy to put them in so you can bring them home and hang the pieces on your wall as a reminder to not do that again. Lol
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Old 02-01-2019, 05:32 PM
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Originally Posted by stealth355tpi View Post
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.
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.
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Old 02-01-2019, 07:19 PM
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Originally Posted by mike135531bubba View Post
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.
I hope it would support a decent amount more then 600rwhp. I'm maxxed at 550rwhp with a hotwire 255 and 60lb injectors. Keep us updated if you get a chance to turn it up some more.
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Old 02-01-2019, 07:28 PM
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What about inline fuel pump
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Old 02-02-2019, 02:46 PM
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The stock lines will flow enough to support about 750 to 800. Thats just the physical limitations of the lines. I have been told they are fine there by customers but no actual proof.
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Old 02-02-2019, 05:32 PM
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Originally Posted by Kfxguy View Post


yea you were gonna test them alright. Make sure you have a bucket handy to put them in so you can bring them home and hang the pieces on your wall as a reminder to not do that again. Lol
LOL in all seriousness it's staying at 18. Timing is a little lower when iat's get around 110. If anyone wants, I can throw some pics of the Racetronix setup installed.
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Old 04-02-2019, 01:42 AM
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THANK YOU !!! I have been looking for the answer to this question for hours .
Originally Posted by [email protected] View Post
The stock lines will flow enough to support about 750 to 800. Thats just the physical limitations of the lines. I have been told they are fine there by customers but no actual proof.
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Old 04-03-2019, 01:25 AM
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With the question of the stock lines answered , can anybody tell me what a stock 1998 steal tank LS 1 pump will support .
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Old 04-03-2019, 12:24 PM
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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.

Last edited by dlandsvZ28; 04-24-2019 at 07:55 AM.
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Old 04-03-2019, 04:15 PM
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The flat bulkhead connector will handle nearly 40 amps.

The 98 will handle in the 20s from what ive personally seen.
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Old 04-10-2019, 12:18 PM
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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??
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