crossroads on head selection

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10-23-2013, 07:33 AM

#31

99s10sbc

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Quote:

Originally Posted by dirt track racer 81

Yea that's not always true.. Went slower with the big cam, added more nitrous, still slower than the little cam. Even tho i did cut a better 60' with the big cam.. Just put a little cam back in mine.. I have torque.. Lol

What cam are you using now?

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10-23-2013, 07:40 AM

#32

dirt track racer 81

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239/254 .595/.623 114+5
Actually has some low end tq now.. Gonna attempt to tune the nitrous today or tomorrow and take it to the track Friday..

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10-23-2013, 07:52 AM

#33

99s10sbc

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Quote:

Originally Posted by dirt track racer 81

239/254 .595/.623 114+5
Actually has some low end tq now.. Gonna attempt to tune the nitrous today or tomorrow and take it to the track Friday..

Mines .235/.251 .621/.624 113 so numbers are pretty close to yours. Interested to see how your new cam performs or is this the original cam you had?

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10-23-2013, 09:20 AM

#34

dirt track racer 81

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Old motor had 244/248 .612/.615 112+2 it ran 10.64 @ 128 1.61 60'. Built a new higher compression motor with 251/257 .623/.623 115+6 and ran a 10.96 @ 122 1.67 60'. Went from 2x.060 jets to 2x.073 jets and ran 10.80 @ 125 1.59 60'.
I put the smaller cam in this past weekend hopefully get to try it out Friday.

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