DBTKDT Posted February 12, 2011 Report Share Posted February 12, 2011 Ok, I'm going to try to take my truck to a dyno in the next few weeks. Looking for some numbers these LQ4's put down stock? I have a 03 1500 HD and have a cold air, 05 e-fans, and a 93 Wheatley Tune, the 1500 HD's have a 3:73 in the14 bolt rearend and the 4L80 trans. Just looking for a benchmark. The truck feels really strong now and it become fun to drive! Too bad it weighs 6000+lbs! Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted February 12, 2011 Author Report Share Posted February 12, 2011 Also what percentage is used for the 4L80 for drivetrain loss? Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted February 23, 2011 Author Report Share Posted February 23, 2011 hello? Quote Link to comment Share on other sites More sharing options...
silverado777 Posted February 23, 2011 Report Share Posted February 23, 2011 LQ4's come from the factory with 300hp. With your mods and ofcoarse depending on tire size you might be able to get somewhere around 230 to the wheels. Quote Link to comment Share on other sites More sharing options...
gafool Posted February 24, 2011 Report Share Posted February 24, 2011 i had headers and an efi tune and a vette servo installed and i had a dyno or 268 and 290 torque Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted February 28, 2011 Author Report Share Posted February 28, 2011 (edited) Went to the dyno(dynojet) today and ran it in third gear, I got 267hp and 286tq. Looking for some input? Again a LQ4 with cold air, 05 e-fans, and 93 Wheatley tune. I have the 4L80e trans with 3:73 gears(14 bolt) and 33" tires. I will post the graph in a little bit. What am i making at the crank? Edited February 28, 2011 by DBTKDT (see edit history) Quote Link to comment Share on other sites More sharing options...
gafool Posted February 28, 2011 Report Share Posted February 28, 2011 well at the crank im making maybe 315? due to at the crank it has 295 Quote Link to comment Share on other sites More sharing options...
DBTKDT Posted February 28, 2011 Author Report Share Posted February 28, 2011 well at the crank im making maybe 315? due to at the crank it has 295 300hp and 360tq stock. I think im making more than 315 at the crank? I'm thinking the drive train on this truck is sucking up some good power, plus the 33" tires. Quote Link to comment Share on other sites More sharing options...
sierra ss Posted March 5, 2011 Report Share Posted March 5, 2011 Early LQ4's have 300 later models have 325. Quote Link to comment Share on other sites More sharing options...
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