H/C/I LQ4 Dyno Run
 

Put the truck on the dyno after the swap from cam 5.3 to h/c/i 6.0


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Video is 2nd gear pull. Truck kept going into REP trying to day a 3rd gear pull. It did manage to make 388tq in 3rd gear @5000rpm but then would fault into rep. TB and Xlink issues I really havent pinpointed yet

2nd gear unlocked dyno pull - YouTube


04 LQ4, FBO, nnbs intake-TB, ported 799's and EPS 222/226 597/605 112+4

Sounds good, what TB are you using?

87mm nnbs tb. and Xlink. It's a random issue, in some logs you can see the TB go from 98.8 to 97 and then if it dips into 96% it throws it into rep mode. It's annoying but like I said it doesn't happen all the time so it's hard to pinpoint

Man. I would be stoked if mine puts out those kinda numbers. I am afraid it won't be able to tho...

That is a STRONG 6.0. I wouldn't be surprised if you saw 420-430 in a 3rd gear pull.

:rock: Nice numbers!

Where did you dyno the truck at?

Note to self....look at the dyno sheet

Wish I could see the sheet. Its not popping up at work.

I run the same tb. And my truck has done the same thing. It will run good and then all of a sudden a CEL pops up, and I get reduced engine power. I limp the truck to work or back home and park it. Come back later to go home or start it, the code is gone and the truck runs as usual. Its only done this a couple times to me.

Ive heard the tb is the problem. I picked up a ls3 tb for pretty cheap. When I start phase II on the truck here pretty soon, Im going to swap to it.

What power did the cam 5.3 dyno?

I would think a 6.0 w a cam heads and intake woulda made more power, am I that blind?