I just got back from Lubbock, I decided to dyno the car again since the long tubes and the new intake pipe. I was hoping for 625-650rwhp, and was right in the middle of that, so I am quite pleased.

I made 3 passes, first no spray (514.5rwhp 617.1rwtq), a pass with the 100 shot jets in it (632.7rwhp 649rwtq-got into it late on the dyno) and a pass with the 100shot nitrous jet, but with the 150 shot fuel jet, as it was looking really lean on their wideband, and a little lean on mine(625.4rwhp 690.6rwtq-still got into it later than the no spray run, but faster than the other late one)

On the last run I lost an average of about 5hp average due to the extra fuel, but my wideband dropped from 13.0 to 12.0 so I will leave it like that. Better safe than sorry. I really wish the guy would get into it around 3500 on the spray as I would really like to see a BIG tq number.

I know its not much compared to some of your setups, but for a stock impala motor(save the forged pistons and hotcam), I am VERY pleased. I will scan the printout and get it posted this evening or in the morning.

 

Very nice numbers!

What are you using to raise/lower the fuel? Is it by the tune, FMU or Boost sensitive AFPR?

 

It has 50lb injectors and a PCMforless tune. It is actually running out of injector, even at this elevation (DA was 4kfeet), Thats why I upped the fuel jet, to get more fuel in the motor. I am going to install a spearco liquid/air intercooler, a full aeromotive fuel system, and some bigger injectors over the winter. Hoping to see 700sae rwhp.

 

Impressive #'s . Clovis, NM . I was stationed at Cannon for six years . Are you military ?

Ben

 

Nah, I own Eastern Audio. Did you have the blown LT4 z28 vert? That was a nice car.

Here is a scan of the printout.

dyno chart

 

Looks good man, congrats

 

Are you still running the stock crank? Very impressive #s, congrats!!!

 

Only things changed in the motor are TRW pistons and lt4 hotcam kit. Everything else inside the motor(rods, rod bolts, crank, throttle body, etc) is stock.

 

Nice numbers!

 

How'd you get 14 pounds out of the S-trim? What size pulleys?
Thanks

 

Yeah thats me. I remember you now . I've been working on the car since i've left Clovis. I'm seeing 592 rwhp @ 14.85 psi . I've been flirting with the idea of running nitrous . What kind of cooling setup do you have . I have the aftercooler with the custom ice tank in the trunk .

Ben

 

7" crank, 2.87" blower, and nonported heads. I think I would actually see 16lbs of boost at sea level. If I get some good heads on it, the boost will drop a few pounds also.

I also dont have any kind of intercooler (have a spearco liquid/air thats going on over the winter), so the hot air also inflates my boost numbers some.