raidercelticfan

hi, i have a 70 camaro with a 454 and a 1981 super t10, the t10 has a 3.42 first gear,2.88 second gear,1.46 third,1.00 forth,(1st gear sucks) i just got my taxes and i want 2 get my trans rebuilt with a new gear ratio and rear end gears built 2 match, i wont be racing but i want it 2 jump when i get on it, i also drive on the freeway so i need a combo that wont tack out when im on the freeway, any help or info will be appreciated, thanks darren

Sonix

iTrader: (1)

What's wrong with the current ratios?
What are the available choices anyway? Might want to contact a company that makes the gears. Tremec is a good start, to see what's available.

Also, this is a third gen forum, not first or second so....

raidercelticfan

my combo now sucks!! i have no first gear my rpms shoot shy high in 30 feet my second gear aint much better third and forth are ok,st10's have 5 set up's heres what i have 2 chose from 2.43-1.61-1.23-100 2.64-1.75-1.34-100 2.64-1.60-1.23-1.00 2.88-1.91-1.33-100 i have no idea what works with what, i just know what i have sucks, im not looking 4 build a race car i just want a correct combo that jumps in town and can still cruise at 70 with around 3000 rpms

Pat Hall

iTrader: (31)

Use the calculator in this link. You can plug in any ratio you want and it'll give you the answers you're looking for. http://www.5speedtransmissions.com/startlineratio.html For what it's worth, if you went with the 2.64 first gear in the trans, and a rearend gear around 3.55 to 3.73, you'd have a great launch. 3.42 is way too low for 1st gear in the trans unless you're running 2.73's in the rear, or have a 6 cylinder engine.

raidercelticfan

thanks 4 the help, i just used the calculator on the site and i think im going 2 go with the 2.88 first with around 3.50 rear gears, it has a 10.08 final and 2200 rpm at 75, thanks again 4 the help darren

rjt76

why not change the rear end gears? you could do a 3.08 with that t-10 and have great acceleration.

raidercelticfan

the 3.42 first and 2.88 second are 2 low my first gear is only about 25-30 feet, i have 2 shift 2 fast, i think it will be the same with 3.08s thanks darren

vasquezmrysvll

iTrader: (5)

i have a 2.88 1st. and 3.23 in the rear, that seems fine to me.

raidercelticfan

hi, how are your rpm's at 75mph with the 2.88 first and the 3.23 rear, i ran that combo on the calculator it was around a 9.30 high range and 2000 rpm at 75 just wondering how close the calculator is, thanks

vasquezmrysvll

iTrader: (5)

its more like 2200-2500ish. i have a nice tach but my speedo is not too acurate?

raidercelticfan

thats just what im looking 4 any thing over 3 is to much on the freeway 4 me, i think i might go with the 2.88 and 3.23 THANK YOU

vasquezmrysvll

iTrader: (5)

. with that combo, you kinda get to play with both ends of the spectra! IMO?
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your a raiders fan?

rjt76

you will like your current trans ratio's with the 3.08's better. meaning lower rpm highway and great acceleration. do the math.

raidercelticfan

hi, the math looks good 10.53 high range,but i searched gear ratio calculator and they show the power band of all the gears its not even like all the other st's it has a major rpm drop off unlike the other 4 i think 2 be safe im ah have 2 spend the money and gear the car correct, thank you 4 the input