Dyno Charts

[farmtruc]

Hey guys, the dyno has been real busy (my lack of posts) and before I got it, I always wanted to know how much guys are making whether it's a truck or not. For example, did you ever want to know how much a v6 camaro or civic put out? I kind of do.
I'll be posting lots of graphs and numbers throughout the weeks.

For example, here is a shot of my father in laws '99 GMC Sierra, 5.3, exhaust, and tune. 247hp@5073 285tq@4038

I thought it made some decent power considering the '99's were a little less in hp than the others. I'm sure the cam helped out a bit.

Keep in mind, this is a REAL dyno, not a dynojunk, it is capable of controlled accelerations and decels. For example, I can hold a turbo car at 50mph in third, pedal floored and that creates full boost. Then, I can start the test. On a non loaded dyno, it's hard to measure actual torque/hp when and if the turbo finally spools up completely at the end of the run. Kind of looks like a nice ramp instead of a flat torque curve.

Later when I get some time, I'll be comparing basic boltons.


chat with you later,

allen

[farmtruc]

Here's another one, this is an '02 5.3L, with no mods.

Stock: 229hp/269tq
Tuned: 240hp/282tq
Gain: 11hp/13tq

The peak increase was ok, as you can see, but what I wanted to show you was the power it made across the band. Especially that torque.
It really felt great on the road. This graph doesn't show it, but torque was strong all the way down to 2500rpms.
The truck definitely pulled a lot harder on top on the road, you can see how hp continues to pull when comparing the stock curve.

Keep in mind, this dyno does produce slightly lower numbers when comparing to a dynojet. LOL, I know I keep saying that, but it just gets to me that an inertia only dynojet consistantly produces about 10% higher numbers. It's also a shame that superflows software has a correction factor value that can be changed to accomadate that. oh well.

later,

allen

[farmtruc]

btw, Before and after dyno results from a 4L60E to a 4l80E coming soon.

I always wanted to know how much power that big bastard consumes.

I'm thinking a lot, a HD truck with a 6.0L will dyno less than a 5.3L, of course it has that big ass rearend to go thru as well.

later,

allen

[BlackAvi03]

DAUM!!!!! That is one flat torque curve!!!!


Troy


Once I recoup my engine swap on the Impala, and the 6" lift on the Av, I will be giving you a call!!!!

[jerry2500]

Hey Allen, show them my Dyno sheet on how to over come the power loss of the big tranny and rear end. hehehe

[farmtruc]

Originally posted by BlackAvi03@Aug 24 2004, 10:48 PM
DAUM!!!!! That is one flat torque curve!!!!


Troy


Once I recoup my engine swap on the Impala, and the 6" lift on the Av, I will be giving you a call!!!!

Thanks, ya it was very noticable on the street. The torque was more than 25ftlbs higher than stock from about 2500 to where you see them close up.

The thing with the dyno is, you don't see the true gain until quite a few miles are put on the trucks, I have a few ppl coming back in a few weeks to get an after dyno pull to see how much is gained after a week or so of driving.

Jerry, yours is coming up, lol.


thanks,

allen

[Hit Man X]

Originally posted by farmtruc@Aug 24 2004, 11:33 PM
I always wanted to know how much power that big bastard consumes.

LOL, I'm going to guess 25-40rwhp.

Oh yeah...I did track down the lil input gear to strap the AutoTrac Tcase to the 4L80E that was the mystery over "there" before I left.

[2k5Squirrel]

Are you going to put my $hitty ass numbers up there. After seeing Jerry's Dyno run..I felt a little down. After I burnt about 4,000 miles off the rear tires I felt a little better

Jason