LT4 pump and injector limits

Reply Subscribe

Thread Tools

Search this Thread

Jul 29, 2018 | 11:10 AM

TorchZ51

Thread Starter

Pro

Joined: Oct 2017

Posts: 560

Likes: 203

LT4 pump and injector limits

How much hp will a LT4 High side pump and injector upgrade on LT1 in a supercharged application support?

Jul 29, 2018 | 04:10 PM

robert miller

Team Owner

Joined: Jan 2007

Posts: 29,063

Likes: 1,839

From: cookeville tennessee

Quote:

Originally Posted by TorchZ51

How much hp will a LT4 High side pump and injector upgrade on LT1 in a supercharged application support?

With meth more than the stock pistons will be able to take for to long..

Jul 31, 2018 | 10:47 AM

TorchZ51

Thread Starter

Pro

Joined: Oct 2017

Posts: 560

Likes: 203

Anyone have real world hp numbers using the LT4 pump and injectors in an LT1?

Aug 1, 2018 | 11:32 AM

robert miller

Team Owner

Joined: Jan 2007

Posts: 29,063

Likes: 1,839

From: cookeville tennessee

Quote:

Originally Posted by TorchZ51

Anyone have real world hp numbers using the LT4 pump and injectors in an LT1?

OK then give all the mods & with which SC you have on the car.

Aug 3, 2018 | 09:31 AM

Jaycajun

Pro

Joined: Sep 2012

Posts: 592

Likes: 29

From: Bulverde, TX

Your pistons are the weak link. Keep it at 600. When you get forged internals then you are ready for a fuel system upgrade. Trust me... If you go forged, the LT4 HPFP/injectors will be out of fuel at 700 on 93 and 800 on E85 and that's with a secondary fuel system and a cam with 38% fuel lobe and no meth as a fuel adder.

Last edited by Jaycajun; Aug 3, 2018 at 09:34 AM.