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Old 05-06-2005, 11:45   #1 (permalink)
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(help) cam selection

howdy guys, just after some input on what would be the best cam to run, here is a list of whats done to the motor so far
first of all its a 250 crossflow rebuilt, standard in turnels, ballanced, lowered comp to 8.1, kec cnc elimanator head, roller rockers, it will also be running a t04 turbo, tial 44 wastegate, 55lbs injectors, large pleneum,
im thinking of something that would work around 2400 to 5500 revs, not really to keen on a high rev cam as its going to be my every day car any way so would really like to make most of me power from bottom to mid range any way any imput would be much appreciated guys.
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Old 05-07-2005, 00:31   #2 (permalink)
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Re: (help) cam selection

Quote:
Originally Posted by boosted22
howdy guys, just after some input on what would be the best cam to run, here is a list of whats done to the motor so far
first of all its a 250 crossflow rebuilt, standard in turnels, ballanced, lowered comp to 8.1, kec cnc elimanator head, roller rockers, it will also be running a t04 turbo, tial 44 wastegate, 55lbs injectors, large pleneum,
im thinking of something that would work around 2400 to 5500 revs, not really to keen on a high rev cam as its going to be my every day car any way so would really like to make most of me power from bottom to mid range any way any imput would be much appreciated guys.
I would think the std cam will do initially , later when its sorted you "might" change the cam but a turbo normally likes short duration good lift just like the std cam .
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Old 05-07-2005, 04:39   #3 (permalink)
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Re: (help) cam selection

Yep a cam does'n make that much difference until you realy start pushing power...But if you do there are some custom grinds done for turbo's..They are the opposite to blower cams...Plenty of duration on inlet and heaps less on exhaust with wide lobe seperation, which keeps nice long power band..Numbers like 220 in and 210 exh [@50] with 115 lob seperation..As an example...Which is a mild cam..These engines being long stroke don't require big cam numbers... Turbo's bring the V.E of these engines up heaps....
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