Big4x4ride Posted April 23, 2011 Report Share Posted April 23, 2011 Just curious, seems that most guys are running powerglides in 1st with 3.55, 3.73 gears in the rear ends, and some guys are running saginaw 3 speeds in 2nd with 3.73 or 4.10's in the rear end. Is there any reason why a Th350 could not be used instead, either in 1st with a high ratio, or in 2nd with a lower ration like 3.73 or 4.10? I am building my first car which will be a pure stock and have a fresh 0 mile th350 ready to go, don't really see why I couldnt use it, the 1.52 2nd gear is pretty much teh same as the saginaw 1.50 2nd gear. I'm not too worried about it handling the power of the engine as I doubt that would be an issue, just more concerned on why it's not real common, or at least not common down here at STS. Link to comment Share on other sites More sharing options...
1955chevy33 Posted April 23, 2011 Report Share Posted April 23, 2011 Just curious, seems that most guys are running powerglides in 1st with 3.55, 3.73 gears in the rear ends, and some guys are running saginaw 3 speeds in 2nd with 3.73 or 4.10's in the rear end. Is there any reason why a Th350 could not be used instead, either in 1st with a high ratio, or in 2nd with a lower ration like 3.73 or 4.10? I am building my first car which will be a pure stock and have a fresh 0 mile th350 ready to go, don't really see why I couldnt use it, the 1.52 2nd gear is pretty much teh same as the saginaw 1.50 2nd gear. I'm not too worried about it handling the power of the engine as I doubt that would be an issue, just more concerned on why it's not real common, or at least not common down here at STS. I run a turbo 350 in first with 256 rear gears, in one of my cars. Its a winning car,so no reason you cant. In fact I am sure there are lots of people around running this same setup ! Good luck in racing ! Freddy The powerglides are smaller and lighter,and cheaper to rebuild. Thats why a lot use the powerglides. Link to comment Share on other sites More sharing options...
SASPEEDRACER24 Posted April 24, 2011 Report Share Posted April 24, 2011 Just curious, seems that most guys are running powerglides in 1st with 3.55, 3.73 gears in the rear ends, and some guys are running saginaw 3 speeds in 2nd with 3.73 or 4.10's in the rear end. Is there any reason why a Th350 could not be used instead, either in 1st with a high ratio, or in 2nd with a lower ration like 3.73 or 4.10? I am building my first car which will be a pure stock and have a fresh 0 mile th350 ready to go, don't really see why I couldnt use it, the 1.52 2nd gear is pretty much teh same as the saginaw 1.50 2nd gear. I'm not too worried about it handling the power of the engine as I doubt that would be an issue, just more concerned on why it's not real common, or at least not common down here at STS. I run a turbo 350 in first with 256 rear gears, in one of my cars. Its a winning car,so no reason you cant. In fact I am sure there are lots of people around running this same setup ! Good luck in racing ! Freddy The powerglides are smaller and lighter,and cheaper to rebuild. Thats why a lot use the powerglides. The Manual Trans is usually the trans of choice because of the reduction of rotating weight. The less rotating weight you have the more power you get at the wheels. Unless you run a dummy converter, a Turbo 350 or the Powerglide will be heavier. The other thing with the Manual Trans is depending on the track there are gray areas in the rules regarding clutches and flywheels another area you can reduce rotating weight and thus get more HP to the wheels. Of the 3 the TH350 is the heaviest I believe... Link to comment Share on other sites More sharing options...
Danielsen Motorsports Posted April 24, 2011 Report Share Posted April 24, 2011 the turbo 350 in first gear doesnt pump the fluid as well as it does in 2nd or drive. So make sure you have a good cooler. Powerglide far superior trans and if built properly its a great investment for awhile. Link to comment Share on other sites More sharing options...
doitinthedirt Posted April 24, 2011 Report Share Posted April 24, 2011 Turbo 350 in second gear the way to go. make sure it does not shift buy itself into another gear, some do. setup that way. powerglide in first depending on rear gear.. Link to comment Share on other sites More sharing options...
Big4x4ride Posted April 24, 2011 Author Report Share Posted April 24, 2011 Thanks guys, I am leaning towards 2nd gear in th350 and 4.10's Link to comment Share on other sites More sharing options...
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