The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - LS1 '48 3100 swap, rpm range, few other questions

BR3W CITY · 06-09-2015, 02:41 AM

What trans are you running? Thats going to affect the final drive ratio in addition to your rear gearset.

3:73 is the "money spot" for most of us running overdrive trans. Some guys like to step up to the 4:11 for accel on 'glides or trucks with long 1st and 2nd. If the camaro is a 6speed, top gear is like .5:1, so too low of a gear and your going to lose a lot of passing power on the freeway.

How mild of a cam are you considering? IF your on an auto trans, are you running a stall convertor? All this will affect your outcome.

Personally I usually consider the 3:23s a little too shallow on an o/d setup.

06-09-2015, 02:41 AM	#2
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: LS1 '48 3100 swap, rpm range, few other questions What trans are you running? Thats going to affect the final drive ratio in addition to your rear gearset. 3:73 is the "money spot" for most of us running overdrive trans. Some guys like to step up to the 4:11 for accel on 'glides or trucks with long 1st and 2nd. If the camaro is a 6speed, top gear is like .5:1, so too low of a gear and your going to lose a lot of passing power on the freeway. How mild of a cam are you considering? IF your on an auto trans, are you running a stall convertor? All this will affect your outcome. Personally I usually consider the 3:23s a little too shallow on an o/d setup. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD