Best drag racing Trany
Best drag racing Trany I hope I put this in the right spot??
I have a new project, a 94 Firebird, V6 that had an Engine fire so I 'm going to turn it into a drag car so I don't ruin mine daily driver.
I will be useing a LS 6 and I need to know what trany would work best for drag racing.
The LS 6 will be a carb setup, not fuel injected, straight turn key and race.
I'm looking to get down into the 9's so I want a trany that can with stand the pwr.
I want to stay away from computer controled stuff as much as posible.
Thanks
I have a new project, a 94 Firebird, V6 that had an Engine fire so I 'm going to turn it into a drag car so I don't ruin mine daily driver.
I will be useing a LS 6 and I need to know what trany would work best for drag racing.
The LS 6 will be a carb setup, not fuel injected, straight turn key and race.
I'm looking to get down into the 9's so I want a trany that can with stand the pwr.
I want to stay away from computer controled stuff as much as posible.
Thanks
you have some choices out there but it depends on the engine combo, if its a 346, LS6 N/A car you can probably get away with a 700R4, I mean your not making much power. If you plan on making 500+ with maybe a power adder or 2 then consider a th400. The idea is to have it be a auto shift (manual valve body) and as many gears as you can fit in there too keep it in the power band.
PG trans only if its a car that needs to be toned down off the line. Given the tranny ratios, you need to make so much power that the tranny gears tone down the over all ratio and keep the car on the track.
Before I think anyone else can input on this, you need to be more specific on power level expectations. There is a tranny for nearly any situation.
PG trans only if its a car that needs to be toned down off the line. Given the tranny ratios, you need to make so much power that the tranny gears tone down the over all ratio and keep the car on the track.
Before I think anyone else can input on this, you need to be more specific on power level expectations. There is a tranny for nearly any situation.
Well I'm looking at 600+ hp by the time I get done.
Pwr adders will be anything from N2o to a blower or turbo.
I'll probibly start with N2o and build up from there.
I want something that I can put in and will work for a long time.
I don't want to be changing tranys all the time.
I hope that's good enough?
Pwr adders will be anything from N2o to a blower or turbo.
I'll probibly start with N2o and build up from there.
I want something that I can put in and will work for a long time.
I don't want to be changing tranys all the time.
I hope that's good enough?
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From: Gainesville, Florida # of drag strips runs: ?!?!?
Plenty of topics on this subject. Chances are TH400 or glide will be your best options (unless you like using three pedals like Timmy, and then it's up to you).
Here's one of many results on glide versus TH400 searches: www.ls1tech.com/forums/showthread.php?t=624440&highlight=glide+400+or#pos t6058986
Here's one of many results on glide versus TH400 searches: www.ls1tech.com/forums/showthread.php?t=624440&highlight=glide+400+or#pos t6058986
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From: Gainesville, Florida # of drag strips runs: ?!?!?
1-weight savings
2-less power loss
3-tames the launch versus the 3-speed's 1st gear
Glide disadvantage:
1st gear is numerically lower versus a TH400 so street driving MAY be a little harder away from a light depending on gear and converter choice (again, I said MAY as each set-up is different), as well as more heat in certain situations due to same reasons.
Again, it's by choice. Plenty of bracket racers swear by the glide, but plenty of heads-up guys use 3-speeds for keeping the rpm more in the powerband versus the 1-2 gear drop in the glide.
Derek
Last edited by Villain281H; Oct 7, 2007 at 09:03 AM.
I think the glide would be great for a drag car. But if you are street driving and drag racing it then a th400 with all the goodies and a big converter.
Or at least that's what I'm doing this winter.
And I have plans to put the 6 speed back in after a few years of dragging it with the A3.
Or at least that's what I'm doing this winter.
And I have plans to put the 6 speed back in after a few years of dragging it with the A3.
Now I have posted this in a few places and I'm getting the best answers from here 
One site swears by the Th400 hands down.
Villian, thans for the break down that helps me a lot.
As far a street driving this, I highlly doubt it.
On more question:
Is there any thing I will need to adapt the Gluid or TH400 to the LS 6?
One site swears by the Th400 hands down.
Villian, thans for the break down that helps me a lot.
As far a street driving this, I highlly doubt it.
On more question:
Is there any thing I will need to adapt the Gluid or TH400 to the LS 6?
From what I seen the reason why there is a divided line between a 3 speed auto and the 2 speed GL beyond the basic physics is that in some class racing electronic throttle stops and even trans brakes are now allowed i.e. (Electronics vs Non- electronic(footbrake)).
A GL is a great way of toning down a VERY fast car so that it will leave consistantly and if the driver needs to accerlate, they can. Most cars that run a given index (lets say 10.50's) are often faster ***** out then what they run so that they can control their times.
If the races is heads up, why not go with something that as long as the combo, weight, suspension is properly designed, should allow for a faster time given the car is running longer in the power band.
I beleive which ever way you go, the car will be fast.
A GL is a great way of toning down a VERY fast car so that it will leave consistantly and if the driver needs to accerlate, they can. Most cars that run a given index (lets say 10.50's) are often faster ***** out then what they run so that they can control their times.
If the races is heads up, why not go with something that as long as the combo, weight, suspension is properly designed, should allow for a faster time given the car is running longer in the power band.
I beleive which ever way you go, the car will be fast.
i have actually been dealing with this debate personally for a while and after talking to marty chance from neal chance racing convertors, he instructed me that the only reason to use a glide over a 400 is if you cannot setup your chassis correctly. Marty had said that if the chassis is flawless then the 400 will be .05 faster than the glide everytime. but the glide is about twice as forgiving as the th400 in the fact that is will not leave near as hard and not near as violent shifting going down the track.
So in the end i went with the glide and if i think i can go faster with the 400 i will switch. so i say go with the glide
So in the end i went with the glide and if i think i can go faster with the 400 i will switch. so i say go with the glide
Both your top choices will drive fine on the road, but the 3 speed would be my choice for racing. When you start running big power adder engine's I would start taking a little first gear out, like the Rossler 2.10 first trans.
Kurt
Kurt
TH400 and call it a day. They aren't TOO expensive, will stand up to 900hp without too many issues. Pull it once an season and send it back for a refreshening, along with the converter, and you'll be spending your time racing, not fixing stuff.
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From: Gainesville, Florida # of drag strips runs: ?!?!?
Also, TH350 are not the choice for a transmission with a transbrake. Yes, they are out there and yes they work. But ask most serious bracket racers and they'll tell you a TH400 or glide is much more consistent off the t-brake.
And coming from a 16-year veteran of footbraking, transbrakes are very cool
This is why I spent close to 2 grand converting my car for one and yet it doesn't run any faster than the TH350 did.They're out there, but looking at the #s not even close to the majority. I'd run one, but I know the maintenience involved and the "always possible missed-shift" with a stick you don't run into with an automatic. If my Nova was not bracket raced like it is, I'd seriously consider a 5-speed for the fun factor.
Derek