Trex Dyno Graph
#6
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Originally Posted by BADSZ28
Ask arround here. I think most guys run like 30*. Hell I have my SI motor with stock manifolds and Y at 30*.
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#10
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my cam isn't nearly that big and I am putting down 423rwhp and 381rwtq. your numbers seem a bit down. My heads haven't been touched yet. on a side note what kind of dyno was it?
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The T-ReX does seem to be a bit inconsistent. My full bolt-on (sans 90/90) has only managed 405 on three different dynos.
Perhaps it is the springs. I'm running unshimmed Patriot duals, but haven't seen any float.
Josh
Perhaps it is the springs. I'm running unshimmed Patriot duals, but haven't seen any float.
Josh
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springs DO make a difference, ive seen it tested with different spring setups and they carry out differently, my cam peaks at 6700 rpm and then flatlines for a few hundred and then drops off, yours is peakin well before that, im running 29* of timming, another guy was runing 30* of timming, i run 93 octane and i drive it in the heat with no trouble, also make sure that it was installed correctly, and lastly, get you a 90/90 fast setup, i had a bud portmatch it for me and i picked up 20 over the ls6 intake.
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The Patriots have MUCH more seat pressure than the cranes. So I do not think power is low due to not shimming. Not with the Patriots. Most guys seem to shim the cranes .030. That is not going to bring those 112lb springs to Patriots 140lb. May want to be sure you lined it up dot to dot. Or if there is extra slack in the chain.
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Originally Posted by lilbuddy1587
It's possible the cam is off a tooth. Looks to be advanced because of such an early peak.