I got 305 hp and 323 ft. lbs of TQ. W/ my mods, i was hoping for a little more HP; however, i like the TQ. Send me some feedback! Jason

 

Nice numbers. Where did you go? Dynolabs?

 

Atlanta Chassis Dyno; I did notlike dyno lab at all...

 

Yeah, Parking isn't that great at Dynolabs and Brad has a nice set-up at ACD.

 

They seem a little low are a car with a cam. Do you have any tunning? I put down the numbers in my sig with just full exhaust and CAI/MAF.

Bryan

 

I agree those numbers are a little low for that cam. Some better tuning could very well straighten out that issue though. Pretty good Torque specs. What RPM were u making peak power at?

 

Was bout to say great #'s until i read the lower post's.. Nice to see you had a cam hiding in that sig somwhere.. get that tuning issue fixed and you should be up at 325 or so..

 

Tq sounds ok, hp seems pretty low to me. I've seen quite a few people here claim around 300rwhp with just bolt ons. You probably need a tune and maybe an LT4km.

 

I think it's the valve springs you used, the LT4 springs are only rated @ 101 seat for .525 lift. Try the Comp 977 or 981 springs or the Crane dual kit for LT1 aluminum heads which will give you 135 seat and 395 open I think. You maybe expirencing valve float which is cutting you're power short.

 

Yep, the HP is kind of low for your modifications. Were you monitoring the knock retard? Has any programming been done to the car?

 

I second that!! I dynoed 305 with the stock cam. Get Byron @ PCMforLess mess with it!!


Brad

 

Im with that majority with this, both hp and torque seem low. I dyno 300rwhp and 322 pounds of torque with just bolt on's. If you have not done computer tunning yet I would do that next.

 

Those numbers sound right, I'm in the same ballpark figure. I still need to finish and tune it up. I'm hoping around 320-330 mark range on NA. and 450+ range on the bottle. So i would say like everyone else get it tuned.

Vinny

 

They seem a little low to me but im not sure. Are those longtube headers? If so then yea seems low. Did you dyno before the cam?

 

the headers are shorties....it is programed by PCM for less; that was the purpose for the dyno ( to get a/f ratio). The guy doin the dyno said that the a/f ratio was pretty much perfect. So i am kinda baffled. Maybe i am getting some false knock; however i don't think that it should be robbing me 20 HP!? My hp topped at 4200 Rpm's and torque at 5500. I am going to try to send the a/f ratio to bryan and see what he thinks.