th400 or Glide
th400 or Glide Track only car. 1/8 mile maybe 1/4 mile if Memphis Motorsports opens back up.
How much power to you need and what should the car weigh for a glide.
N/A at first, then maybe a 100-150 shot later.
Thanks in advance.
How much power to you need and what should the car weigh for a glide.
N/A at first, then maybe a 100-150 shot later.
Thanks in advance.
Depends on the motor combination, weight of the car, and gear you're going to run. There gets to be a point where the 2.48 is too much first gear, and PG will help your consistency a lot, especially with a CO2 shifter. There was an LT1 bracket car running a glide, basic H/C package, ~3200 pounds running consistent 10.20 IIRC. You'll want to spend money on a top notch converter that's for sure.
Th-400 is fine for you, especially if you run 1/8th Mile. Raceweight is most certainly a factor for P/G cars but you have a better (higher numerically) 1st gear plus 2 more which keeps you in your power band. Draw backs being actual weight and parasitic loss but your set up is not "Retarted" enough to need a P/G to calm it down.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
Th-400 is fine for you, especially if you run 1/8th Mile. Raceweight is most certainly a factor for P/G cars but you have a better (higher numerically) 1st gear plus 2 more which keeps you in your power band. Draw backs being actual weight and parasitic loss but your set up is not "Retarted" enough to need a P/G to calm it down.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
I'm building a 416 now, looking to make 550-600 rwhp on motor, then 100-150 shot later. 6.50's on motor in 1/8.
Shooting for 2900lbs Carweight.
in a 3200lb street car with 500hp we picked up over .02 with a glide over the th400. I really feel the th400 has too much first gear for most stuff,if you had a car with a real tall rear gear i can see the th400 being beneficial but that's about it.
Nicely said.
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Th-400 is fine for you, especially if you run 1/8th Mile. Raceweight is most certainly a factor for P/G cars but you have a better (higher numerically) 1st gear plus 2 more which keeps you in your power band. Draw backs being actual weight and parasitic loss but your set up is not "Retarted" enough to need a P/G to calm it down.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
Put a TH-400, good converter set up for Nitrous, Reverse Manual Valve Body and a T brake and you will see how good that thing can get.
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But anyways, race weight is always a factor. As long as your not dealing with class rules, lighter the better, Converter choice is always key but until the combo is finalized you could go through 12 different set up of gearing and converter to get the best or most optimized combo.
Worst comes to worst do the PG have it built right and if it does not work out for you, its a highly desirable item that can sell quickly and you can experiment.
Sounds like pretty good logic to me.
2000 Firebird, full weight, 383", built car, no power adders, 4:11 gear, friend's car.
Started out with a PG running 10.5xs... swapped to a TH400 thinking it would pick up and lost .1-.2 in 1/4m. Went back to the PG and went back to running 10.5x. Not sure on the converter brands for the 2, but stall speed was around 4500.
I'm putting a PG in my car.
Started out with a PG running 10.5xs... swapped to a TH400 thinking it would pick up and lost .1-.2 in 1/4m. Went back to the PG and went back to running 10.5x. Not sure on the converter brands for the 2, but stall speed was around 4500.
I'm putting a PG in my car.
Another issue to consider, is the typical TH400, once you get to around 1000 hp, depending on car weight, will start to become a weak link, or at least start requiring a good bit more maintenance, and regular rebuilds.
Glide.. start off with an SFI cased unit and everything is upgradable from there. Track car do it right away. 1.8 strait cut gearset, min 8 forwar clutches, and get a decent input/output shaft, and call it a day. Don't go crazy spending 5 grand or anything like that on one, probably can put one together for about 3000... put the rest of the budget into the best converter you can.
Glide.. start off with an SFI cased unit and everything is upgradable from there. Track car do it right away. 1.8 strait cut gearset, min 8 forwar clutches, and get a decent input/output shaft, and call it a day. Don't go crazy spending 5 grand or anything like that on one, probably can put one together for about 3000... put the rest of the budget into the best converter you can.
2000 Firebird, full weight, 383", built car, no power adders, 4:11 gear, friend's car.
Started out with a PG running 10.5xs... swapped to a TH400 thinking it would pick up and lost .1-.2 in 1/4m. Went back to the PG and went back to running 10.5x. Not sure on the converter brands for the 2, but stall speed was around 4500.
I'm putting a PG in my car.
Started out with a PG running 10.5xs... swapped to a TH400 thinking it would pick up and lost .1-.2 in 1/4m. Went back to the PG and went back to running 10.5x. Not sure on the converter brands for the 2, but stall speed was around 4500.
I'm putting a PG in my car.
Another issue to consider, is the typical TH400, once you get to around 1000 hp, depending on car weight, will start to become a weak link, or at least start requiring a good bit more maintenance, and regular rebuilds.
Glide.. start off with an SFI cased unit and everything is upgradable from there. Track car do it right away. 1.8 strait cut gearset, min 8 forwar clutches, and get a decent input/output shaft, and call it a day. Don't go crazy spending 5 grand or anything like that on one, probably can put one together for about 3000... put the rest of the budget into the best converter you can.
Glide.. start off with an SFI cased unit and everything is upgradable from there. Track car do it right away. 1.8 strait cut gearset, min 8 forwar clutches, and get a decent input/output shaft, and call it a day. Don't go crazy spending 5 grand or anything like that on one, probably can put one together for about 3000... put the rest of the budget into the best converter you can.
