Vortec 454/4L80e HD swapped 1999 Tahoe OBS

[bigfootchiro]

Sorry guys! Been MIA lately. Been crazy at the office!

Come to find out, I can’t use the LS injectors until I upgrade more of the valvetrain. So, when the 496+ stroker kit goes in will be the time to switch injectors. The stockers are plenty of fuel.

Also, I was looking for ways to bump up fuel pressure, like an adjustable FPR. Come to find out, I pulled FPRs off the shelf for a 454 and a 1997 350. They both use vacuum style FPRs with nipples (hehe, nipples); however, the nipple on the 350 FPR rolls down into a smaller outer diameter, but just slightly. The initial inlet of the same size, and the inlet hole is the same size. Height on the 350 FPR is just slightly smaller, but just the outer portion, not the portion that sits in the fuel rail. If this works, this will bump pressure up from 50 PSI to 65 PSI, and it’s cheaper!!!

New upgraded 4 hole Bosch injectors and FPR going in this weekend!

Also, 0411PCM on its way! It’s been tuned, road tested, and I have all the instructions and pinout diagrams to do the swap!!!

 

[bigfootchiro]

Look what came guys!!! Finally, the long spoken about 0411 PCM. Custom tuned for the 454 by James, the owner of PCMPOWERTUNES. I’m so excited to get this installed! Rear O2s deleted, tuned for the tires and gears, transmission has a “moderate” tune (next step was aggressive), VATS is deleted, Tow/Haul mode is active (he gave me instructions on how to use it), and I’m sure I’m missing things.

OH! New injectors in, 65 PSI FPR (vs stock 50 PSI), spark plugs, and the front brake pads were replaced due to them being bad from the factory.

 

[bigfootchiro]

Injectors, FPR and spark plugs in! Truck idles and accelerates much better than it ever has! Power is constantly there (the roads show the proof ), and 0411 going in this weekend!

 

[Sam Harris]

Injectors, FPR and spark plugs in! Truck idles and accelerates much better than it ever has! Power is constantly there (the roads show the proof ), and 0411 going in this weekend!

Glad to hear that. Too bad we can’t all actually “hear” it... [emoji6]

 

[bigfootchiro]

Glad to hear that. Too bad we can’t all actually “hear” it... [emoji6]

You will, I promise haha

 

[Sam Harris]

You will, I promise haha

Waiting.. impatiently..

 

[bigfootchiro]

Waiting.. impatiently..

Just gotta find some backroads in Mexico to lay down some rubber

 

[Onebad1983]

Just gotta find some backroads in Mexico to lay down some rubber

I've been waiting for this!!!!!!!!

 

[bigfootchiro]

I've been waiting for this!!!!!!!!

Haha you got one when it was finished! Now you’ll get one with some go-fast goodies

 

[Onebad1983]

Haha you got one when it was finished! Now you’ll get one with some go-fast goodies

KILL ALL TIRES!!!!!!!!!!!!!!!!