gear selection

[BSKA]

3/8 mid bank, dryslick for feature. 87" rollout. 2.41's in first or 4.10's in second?
thanks

[Chico]

what kind of trannie I myself like somewhere around a 650 Theres a lot of folks that go lower somw go higher Driving style plays a part length of str8 H what kind of rpms u looking for give some more info and I'm sure someone will help u

[3dinter]

3/8 mid bank, dryslick for feature. 87" rollout. 2.41's in first or 4.10's in second?
thanks

http://www.4m.net/showthread.php?254...r-math-and-RPM

[BSKA]

i seen that thread, was looking for opinions based on my rollout. thought 2.41's might be sluggish off the corner with 87"???

TH350 tranny, 450 lift cam, 9.5-1, 355sbc, 882's want to rev 6000-6200

thanks

[3dinter]

i seen that thread, was looking for opinions based on my rollout. thought 2.41's might be sluggish off the corner with 87"???

TH350 tranny, 450 lift cam, 9.5-1, 355sbc, 882's want to rev 6000-6200

thanks

We put in a 2.56 with a GM performance LT1 stock cast iron hi-rise and we r gettin 6000 at the end of the straight, before with the lower stock cast iron intake only 5500 with the 2.56..with what sounds like the same kinda rules, mexican 355 & mexican heads. We won with the 2.41 before 1 time, but your right kinda sluggish.. I think we are 86 & 86.5 RO

[Chico]

A 2.56 might be a good option It should put you about rt But like I said before length of the str8s and length of the turns etc Jmo

[3dinter]

This is only an ASSUMPTION based on our cars RPM's and current LT1 intake vs past intakes.
TRANS LT1 STOCK
350 turbo with 2.52 x 2.56 = 645 = 6000 5500
Glide with 1.76 x 3.73 = 656 = 6100 5600
Glide with 1.82 x 3.73 = 679 = 6300 5800
350 turbo with a 2.52 x 2.73 = 687 = 6400 5900
So we are currently getting 6000 rpm at the end of the straight with the LT1 intake and 5500 with the old GM low intake with a 2.56 and 1st gear only. The 3.73 and 2.73 gear are total ASSUMPTIONS.

[Chico]

yeah I agree with you Dinter any of these combos could work I've ran 373 s before and if it's a track where you can really stay on it a 656 might be a little much now if you drag race the str8s and park in the corners could be a viable option but again I think Dinter is pretty much dead on with the 256