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went for sum dyno time with the 90' 454SS

i know its not an LS truck but hang in there with me, its my fun toy!! :D

my dad gave me the truck many years ago and after blowing up stock motors a few times i decided to build me a better engine and trans combo for it..... i just got done tearing the truck completely apart and painting it all over so it was time for sum numbers....so here we go!!

i took my 454ss truck an strapped it on the dyno friday to make a few motor pulls and a few nitrous pulls. the motor is a carbed 461" with aluminum heads, comp xtreme cam, roller rockers, rpm air gap intake and a 950 carb, longtubes, 3" dual exhaust with a dynomax x-flow muffler and a return style fuel system for the added nitrous which is an edelbrock plate with 175 jets in it and nos cheater solenoids. 4L80E trans with a revmax 3400 billet converter and the stock 14bolt rear. all pulls were made in 3rd gear(drive) with the converter locked. we turn the truck 6 grand but i noticed it makes it biggest power at low 5 range on motor.....

motor made 416rwhp/497rwtq
nitrous made 577rwhp/653rwtq

motor pulls
making a couple motor pulls with my 90' 454SS truck - YouTube

nitrous pulls
making a couple nitrous pulls with my 90' 454SS truck - YouTube

Attachment 107326

i know it isnt a powerhouse like alot of you guys trucks on here but its a fun ride and makes alot of noise so thats good enough for me! hope you all enjoy it

Jamie

That's awesome. I want one of those trucks someday.

Very nice, what cam is in it?

Sharp truck.

Quote:

Originally Posted by 03sierraslt (Post 5176308)

Very nice, what cam is in it?

Sharp truck.

Its the 588/593 comp xtreme

Cool, I have always liked those trucks.

Clean truck man! I would drive one of those any day

On the spray you start at 12-1 then it goes down to 10-1 afr?
Am I reading that right?
How do u control timing, tune and fuel for the spray?

Any underhood shots?

Quote:

Originally Posted by Choda (Post 5176379)

On the spray you start at 12-1 then it goes down to 10-1 afr?
Am I reading that right?
How do u control timing, tune and fuel for the spray?

I need to jet the fuel solenoid down a touch to lean it a bit. I didnt carry my jets with me and couldnt change it. I hope it brings the power up a bit when i lean it a lil bit on the spray.

Timing is controlled and pulled via the timing retard on my msd digital 6 box.