'89 Silverado RCSB 2wd LQ4/4L80e/76mm turbo build

[LS1FREEK]

Well I got the beast running last night!!! Got a small water leak by the thermostat and a small leak by the PS pump fitting, otherwise sounds good. But the big problem I ran into is fueling, I had the tune set at 108# injectors, which is what mine are @ 58psi, and I fired it up and it would run for about 2 seconds and die. I finally got it to run long enough to where my wideband heater warmed up and the AFR was peaked out at 17 AFR, so I moved my injector flow rate down to 95# and it idled real good but AFR was still peaked at 17 AFR and if you'd hit the throttle a little it would just want to die. I'm gonna put a fuel pressure gauge on tonight after work and see if mabe the stock FPR is shot... IDK what else it could be?? Ideas??

[LS1FREEK]

Well turns out the Bosh 044 in-line pumps dont really work well for gravity feed situations (or so I've been reading) although I took my pre-pump filter out and now it works, kinda for about 15 mins, I can at least drive it around for a little lol. Got a new Walbro 255 with high flow fittings from Glenns Performance on the way,and in the near future I'll have a second one on the way too lol. In the mean time here's a little teaser video lol

89 Silverado 6.0/4L80e/Turbo rev - YouTube

[LS1FREEK]

First off, the reason the front fender looks that way is because my brother owned the truck before I did and he was planning on repainting it, and he started sanding LOL, and the intake off the turbo, yes I know is very restrictive, but is also temporary. I just put together what I had in the shop LOL

Turbo 89 Silverado walk around - YouTube

[bangbangskeetskeet]

First off, the reason the front fender looks that way is because my brother owned the truck before I did and he was planning on repainting it, and he started sanding LOL, and the intake off the turbo, yes I know is very restrictive, but is also temporary. I just put together what I had in the shop LOL

Turbo 89 Silverado walk around - YouTube

The intake isnt so much restrictive as it is just drawing in hot ass air with the filter being so close to the down pipe and hot parts.

[scatesracing]

Are you using stock ecm??

[Paulster2]

Is your boost gauge right? Looks like you weren't building any boost at all ... just wondering.

[LS1FREEK]

Is your boost gauge right? Looks like you weren't building any boost at all ... just wondering.

Yup sure is, but I don't know why it doesn't build any boost revving in neutral... mabe because full exhaust out the back?

[LS1FREEK]

Are you using stock ecm??

Yes, stock 02 harness/ecm/fuse box