WK Statesman

Hi all,

First time poster.

Just had my 5.7 LS1 engine rebuilt and ran it for 5 minutes to check for leaks temperature etc. Now it is ready to go to get dyno tuned.

Motor has had extensive work including Scat Rods, Forged Pistons, Roller Rockers and a Lunati Voodoo Camshaft 232/238.

Running a 3500 lock up convertor and 3.9 gears.

Question i have, is post dyno which i will have the car back next 48 hours, is when do i know if i need to upgrade fuel injectors, pumps etc?

Is there a general rule of thumb for what HP you need to upgrade?

Thanks

Jamie

Cape T/A

your probably on the verge of maxing out your stock injectors as it sits, your tuner should be able to tell you more about it. I would think your stock pump should be fine as long as you dont make over 400hp with it. An A/F guage is a good idea to keep an eye your fuel system to make sure you dont run out of fuel.

WK Statesman

Thanks for the update.

Can i ask what size are the std fuel injectors and what would be the better option going upwards?

Engine builder was conservative and indicating around 280-300KW at the treads. (Nearly 400HP).

Hoping for more, but guaranteed it will drive nicely

Cape T/A

Stock ones are anywhere from 24-28lb. Im running FIC 37lb injectors (4bar) about equal to the ford 42lb injectors a lot of people run, but about $100 cheaper.

WK Statesman

Thanks.....

Will see how he goes with the running in on the motor.

I also have the added complexity, running LPG, which is also directed injected.

Jamie