I think the G-Tech dyno shows results similar to a Mustang Dyno with a good load on it. It also seems to be more affected by driveline losses and wind resistance than a regular dyno. I have not run my truck on a dyno so I don't know for sure. I found an ET Calculator on Forced Inductions that shows converting from Dynojet HP #s to Mustang HP #s and for example 300 Dynojet HP = 255 Mustang HP. If I plug in my best G-Tech HP of 354 HP as the Mustang # I get a Dynojet HP # of 417. Take a look at the ET Calulator it will help explain the G-Tech readings a little better. It is also very hard to do a proper Dyno run on a G-Tech when you are driving an automatic transmission and all my readings seem to come from 2nd gear instead of 3rd. I have not tried to do a proper run in 3rd because I think the trans will just downshift to 2nd.

 

Id like to know too, how some of you guys are getting your weight down alot.

 

yep that is with me(180) in it lol, 4550 was full street trim with 3/4 tank of gas, the 4045 is 1/8th tank of gas, no spare tire,no tailgate,no rear bumper,no jack or tools,no front pass. seat,no center console,glove box emptied. that should sum it up lol

now bluecajun has alot lighter truck than me so he should lose another 100 lbs with taking out front pass seat and center console which would put him close to 39?? damn lol

 

i hear ya kevin, the 4075 is no talgate, no spare, no catback, 1/4 tank gas, and that's without me in it.
next time i need to do all that + no bumper, no front swaybar, no console, no pass. seat. and maybe those lil bar braces under the truck for good measure. that should put it @ 39?? for sure. i weigh 185...

 

damn i never took out all my interior to got to the race track.

 

wondering what a tubbed reg cab, reg bed truck weighs I know there are some out there

 

Mine is an everyday driver. I agree with you on that. I might take out the spare, tailgate & jack at the most. I don't know what mine weighs but I'd say the 20's with tires weigh 100lbs each. I'd probably be at least 4500 race weight with me in it (240).

 

4470 w/ me in it (300lbs) and about a 1/2 tank of gas. If I lost some weight, so that's about 4170-4200 w/o me in it. That was before all of the recent mods, which I'm sure added a couple of pounds.

 

well i was cleaning the truck out and thats why it was out, but i will take it out again to get my 12.4? Oh yeah and that was the equalizer for your 4.56 gears lol.

 

04 1500 GMC 4x4 RCLB 5.3 With fiberglass cover And some tools in the bed..5360.
Now this was before the 33's