what gear do i have?
09-12-2013, 10:48 AM
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what gear do i have? i have a 99 z28 with a small stall and built tranny,at 60 MPH its cranking 2000 RPM exactly is this average for the factory 323's?
the guy i bought it from wasnt sure if it had a gear or not i just wasnt sure if it was a 373 possibly i figured the rpms would be a bit lower at 60 mph
the guy i bought it from wasnt sure if it had a gear or not i just wasnt sure if it was a 373 possibly i figured the rpms would be a bit lower at 60 mph
09-12-2013, 11:04 AM
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i have a 99 z28 with a small stall and built tranny,at 60 MPH its cranking 2000 RPM exactly is this average for the factory 323's?
the guy i bought it from wasnt sure if it had a gear or not i just wasnt sure if it was a 373 possibly i figured the rpms would be a bit lower at 60 mph
the guy i bought it from wasnt sure if it had a gear or not i just wasnt sure if it was a 373 possibly i figured the rpms would be a bit lower at 60 mph
09-12-2013, 08:40 PM
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what rpm range would i be turning if i put a 4.10 in it,ive had a 4.10 ls auto car but its been over 6 years ago lol i cant remember how it drove rpm wise
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09-13-2013, 11:34 AM
#10
4.56s',loved em.
Ran them from the fall of 2007 to the spring of 2012. 1st and 2nd gear were wicked. Still had a top speed of 140. Took 4 trips from Ohio to Florida with them,mpg was 21.5 at freeway legal speeds,the computor handled the mpg well. On a return trip once on I26 from I95 to I77,hooked up with a fast moving group of cars and was in cruise control for an hour at 4000rpm.
Ran them from the fall of 2007 to the spring of 2012. 1st and 2nd gear were wicked. Still had a top speed of 140. Took 4 trips from Ohio to Florida with them,mpg was 21.5 at freeway legal speeds,the computor handled the mpg well. On a return trip once on I26 from I95 to I77,hooked up with a fast moving group of cars and was in cruise control for an hour at 4000rpm.
Last edited by FirstYrLS1Z; 09-13-2013 at 12:27 PM.
09-13-2013, 01:53 PM
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4.56s',loved em.
Ran them from the fall of 2007 to the spring of 2012. 1st and 2nd gear were wicked. Still had a top speed of 140. Took 4 trips from Ohio to Florida with them,mpg was 21.5 at freeway legal speeds,the computor handled the mpg well. On a return trip once on I26 from I95 to I77,hooked up with a fast moving group of cars and was in cruise control for an hour at 4000rpm.
Ran them from the fall of 2007 to the spring of 2012. 1st and 2nd gear were wicked. Still had a top speed of 140. Took 4 trips from Ohio to Florida with them,mpg was 21.5 at freeway legal speeds,the computor handled the mpg well. On a return trip once on I26 from I95 to I77,hooked up with a fast moving group of cars and was in cruise control for an hour at 4000rpm.
09-13-2013, 11:21 PM
#12
That 4.56 rearend is still intact and ready to be put in if I choose. It has a USED richmond 4.56 gearset that I picked up at a swap meet for $25 and an Eaton clutch posi I picked up at Summit in their 'scatch & dent' corner for 300,all it needed was a spider center shaft which I picked up at a swap meet for $5. The used set was a little noisy,but I set it up for wear not quiet. 4.56s' are too much for the 1/4,but good for the 1/8.
Another rear I'm building will have either 3.73s' or 4.10s'. Since I work on our little 10 bolts,I have many gearsets(2.41,2.73,3.08,3.23,3.42,3.73,4.10,4.56) and a variety of carriers and parts.
Another rear I'm building will have either 3.73s' or 4.10s'. Since I work on our little 10 bolts,I have many gearsets(2.41,2.73,3.08,3.23,3.42,3.73,4.10,4.56) and a variety of carriers and parts.
09-13-2013, 11:40 PM
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That 4.56 rearend is still intact and ready to be put in if I choose. It has a USED richmond 4.56 gearset that I picked up at a swap meet for $25 and an Eaton clutch posi I picked up at Summit in their 'scatch & dent' corner for 300,all it needed was a spider center shaft which I picked up at a swap meet for $5. The used set was a little noisy,but I set it up for wear not quiet. 4.56s' are too much for the 1/4,but good for the 1/8.
Another rear I'm building will have either 3.73s' or 4.10s'. Since I work on our little 10 bolts,I have many gearsets(2.41,2.73,3.08,3.23,3.42,3.73,4.10,4.56) and a variety of carriers and parts.
Another rear I'm building will have either 3.73s' or 4.10s'. Since I work on our little 10 bolts,I have many gearsets(2.41,2.73,3.08,3.23,3.42,3.73,4.10,4.56) and a variety of carriers and parts.
09-14-2013, 09:24 AM
#14
since you have a 99,which has a torsen posi,4.10s'(and 4.56s') will require a SLP 'split paddle'(no longer available and rare) or modification/grinding of the existing paddle.
https://ls1tech.com/forums/gears-axl...ddle-pics.html
https://ls1tech.com/forums/gears-axl...ddle-pics.html
