[Nubsnapper]

So as many predicted, I need to upgrade my fuel system. Car started as SS and has 2.9 Whipple, rotofab, 2" headers, cat deletes and flex fuel kit. Made 614.9rwhp and 625.56lb tq on 93. Ran out of fuel on e85. What's the best approach for upgrading the fuel system? Any part numbers are appreciated.

[laynlo15]

I did the Lingenfelter big bore high pressure pump last summer mine made 670 rwhp on race fuel and Meth/water. Now I have a new set of Lt4 injectors to install soon. I'm also going to order the Lt4 low pressure pump that's in the tank. I'm not running E but that may allow me to run it at a later date. I do run VP MS109 at the track with 11 lbs of boost. I will be able to pulley down to 70 or 75 mm pulley to run around 15-16 lbs of boost since I should be ok on fuel for now, I'd think I should make around 725 with the new setup.

[DSX Tuning]

My aux pump system would handle anything you want to do with that setup.

https://dsxtuning.com/collections/au...or-2016-camaro

[oldman]

Originally Posted by Nubsnapper

So as many predicted, I need to upgrade my fuel system. Car started as SS and has 2.9 Whipple, rotofab, 2" headers, cat deletes and flex fuel kit. Made 614.9rwhp and 625.56lb tq on 93. Ran out of fuel on e85. What's the best approach for upgrading the fuel system? Any part numbers are appreciated.

this was a completely stock LT1 system LowPressureSide and HighPrssureSide?


How much HP on E85 can the LPS ZL1 pump take. $300 and OEM quality seems like a good mid level solution for the LPS.

[KingLT1]

If you plan on making big power down the road, I would probably just pony up and get the new Weapon X SPI system.

https://weaponxmotorsports.com/produ...-cts-v-lt1-lt4

[Nubsnapper]

Originally Posted by oldman

this was a completely stock LT1 system LowPressureSide and HighPrssureSide?


How much HP on E85 can the LPS ZL1 pump take. $300 and OEM quality seems like a good mid level solution for the LPS.

Yes, completely stock LT1 system.

[boostednut]

What are your goals exactly?
Street car with xxxhp?
Strip car?
How much power, and on what fuel?
Stock shortblock, built shortblock or stroker? Heads cam?

I think each one of these situations calls for a different solution. These engines are pretty interesting. With old port injection it's simple. Get a bit more pump than you need, same for injectors to help keep cycle duty conservative.

[JANNETTYRACING]

Originally Posted by Nubsnapper

So as many predicted, I need to upgrade my fuel system. Car started as SS and has 2.9 Whipple, rotofab, 2" headers, cat deletes and flex fuel kit. Made 614.9rwhp and 625.56lb tq on 93. Ran out of fuel on e85. What's the best approach for upgrading the fuel system? Any part numbers are appreciated.

You can get to about 660 RWHP on E-60 with the LT-4 in tank, high pressure and injectors, about 750 on race gas.

With a cam the LT-4 stuff will carry you to 750 RWHP on E-60

And possibly 850 RWHP on Race gas.

Ted.

[Rlhay2]

Originally Posted by KingLT1

If you plan on making big power down the road, I would probably just pony up and get the new Weapon X SPI system.

https://weaponxmotorsports.com/produ...-cts-v-lt1-lt4

The Weapon X system is very nice.

This one has promise too:

https://www.corvetteforum.com/forums...or-c7-z06.html

Both are plug and play and can handle any fuel demands including 100% Ethanol if necessary.

[oldman]

Originally Posted by JANNETTYRACING

You can get to about 660 RWHP on E-60 with the LT-4 in tank, high pressure and injectors, about 750 on race gas.

With a cam the LT-4 stuff will carry you to 750 RWHP on E-60

And possibly 850 RWHP on Race gas.

Ted.

Thanks Ted, I appreciate your knowledge

[DapperDan]

The Lingenfelter big bore hpfp says it flows 10% more than the LT4 hpfp would that make any difference in the horsepower capability or would you then have max out issues with the LT4 in tank pump and injectors?

[Eyefixstuff]

Originally Posted by DapperDan

The Lingenfelter big bore hpfp says it flows 10% more than the LT4 hpfp would that make any difference in the horsepower capability or would you then have max out issues with the LT4 in tank pump and injectors?

You could get more out of it than the LT4 pump. To get max value out of using the big bore pump you might as well get their whole kit they have now that includes injectors, in tank, HPFP, and cam. Of course that’s around 6k for the parts alone. But you have to pay to play! Supposedly that setup can get you 1k+. For 6 grand you can probably get a sweet port setup, if you use Lingenfelter’s new package it’s supposed to give you enough fuel for 1k hp without having to use meth. This is what I would do if I had the money personally.

Here’s a link to the article I was reading:

http://www.lsxmag.com/tech-stories/e...-over-1000-hp/

[Nubsnapper]

Originally Posted by boostednut

What are your goals exactly?
Street car with xxxhp?
Strip car?
How much power, and on what fuel?
Stock shortblock, built shortblock or stroker? Heads cam?

I think each one of these situations calls for a different solution. These engines are pretty interesting. With old port injection it's simple. Get a bit more pump than you need, same for injectors to help keep cycle duty conservative.

I show the car more than anything. I'm not going to put a cage in it, so it won't see the track much. I just want to make sure the car is a handful should a hellcat pull up. I really don't plan on doing anything beyond my current combination.

[JANNETTYRACING]

Originally Posted by DapperDan

The Lingenfelter big bore hpfp says it flows 10% more than the LT4 hpfp would that make any difference in the horsepower capability or would you then have max out issues with the LT4 in tank pump and injectors?

The LPE big bore pump will extend the range or HP capablility and extend the range of the injectors a bit.

There will be a point where the intank pump will not be able to keep up we have not found this yet.