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Lq4 tr224 prc stage 2.5 heads

Old Aug 16, 2009 | 09:25 AM
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Default Lq4 tr224 prc stage 2.5 heads

Finally made a trip to the dyno after the head swap. 3rd gear dyno converter locked. this is the final 2 pulls. the higher of the 2 was with the cutout open. corrected dynojet numbers. 409 hp 402 tq


Last edited by Truckshop; Aug 17, 2009 at 06:13 PM.
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Old Aug 16, 2009 | 09:33 AM
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so what was the final numbers and what were the before numbers?
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Old Aug 16, 2009 | 09:34 AM
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380 before heads 409 after.

Last edited by Truckshop; Aug 16, 2009 at 05:40 PM.
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Old Aug 16, 2009 | 10:24 AM
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Nice that is like 340-350 Tq at 3000rpm, i bet that gets the big CC movin.... Your setup is exactly what i want when i by a CrewCab.

Is that a 114 or 112 lsa on the cam? I bet you would gain a little more with alot higher lift cam but on the same duration, probably a little flater Tq curve as well..
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Old Aug 16, 2009 | 01:03 PM
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31 rwhp from heads is great!

Are you thinking about going bigger on the cam?

I'm liking the TR230.
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Old Aug 16, 2009 | 04:07 PM
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its a tr224 on a 112. i thought about a custom cam but i dont think it would be enough of a gain for the expense. esp with as good as it runs now. it is my daily driver and won't see much track time. not to mention this stall isn't big enough. plus iat's were 105 at the beginning of the log and 99 at the end.
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Old Aug 16, 2009 | 04:12 PM
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31rwhp must have felt like a huge SOTP gain
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Old Aug 16, 2009 | 04:15 PM
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Originally Posted by GMCtrk
31rwhp must have felt like a huge SOTP gain
3rd gear pull was night and day difference. 2nd now feels better after leaning it out a bit. air/fuel was 11.8 on the first pull. the trip home was fun.
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Old Aug 16, 2009 | 04:17 PM
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Yep, you got a badass ride, no 2 ways around it. Do you have EFI live? I'd love to see a log of your runs.
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Old Aug 16, 2009 | 04:21 PM
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Originally Posted by GMCtrk
Yep, you got a badass ride, no 2 ways around it. Do you have EFI live? I'd love to see a log of your runs.
nope. hptuners. plus i forgot to save them. i was too pumped about the numbers. thanks!!
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