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Lq4 Dyno #'S?


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#1 DBTKDT

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Posted 12 February 2011 - 02:41 PM

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!
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#2 DBTKDT

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Posted 12 February 2011 - 03:55 PM

Also what percentage is used for the 4L80 for drivetrain loss?
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#3 DBTKDT

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Posted 22 February 2011 - 09:12 PM

hello?
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#4 Silverado777

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Posted 23 February 2011 - 12:46 PM

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.
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#5 gafool

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Posted 23 February 2011 - 10:29 PM

i had headers and an efi tune and a vette servo installed and i had a dyno or 268 and 290 torque
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#6 DBTKDT

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Posted 28 February 2011 - 03:18 PM

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 by DBTKDT, 28 February 2011 - 03:19 PM.

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#7 gafool

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Posted 28 February 2011 - 04:37 PM

well at the crank im making maybe 315? due to at the crank it has 295
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#8 DBTKDT

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Posted 28 February 2011 - 06:26 PM

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.
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#9 Z88 SD

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Posted 05 March 2011 - 05:55 PM

Early LQ4's have 300 later models have 325.
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