Launching a Turbo with a TH400
Launching a Turbo with a TH400 Guys, as some of you know from my last thread I am pretty set now on a TH400 for my turbo motor and goals (used to be 8s with a six speed @ 3400 raceweight). After listening to you guys and thinking about it myself my six speed and clutch would not stand a chance with this kind of power, expecially going to the track every week. So now I just have a few simple questions.
Would it be better to launch a turbo of a trans break or just foot beaking it. My understanding of a transbreak is that it is the equivalent of just reving up any normal automatic equiped car and then just dropping it in drive. This is essentially the same thing as a manual and would not produce any load on the motor, hence not spooling the turbo without a two step or nitrous. Wouldn't foot breaking be the way to go or is there something I'm missing about the trans break. Any input is greatly appreciated. Thanks.
Would it be better to launch a turbo of a trans break or just foot beaking it. My understanding of a transbreak is that it is the equivalent of just reving up any normal automatic equiped car and then just dropping it in drive. This is essentially the same thing as a manual and would not produce any load on the motor, hence not spooling the turbo without a two step or nitrous. Wouldn't foot breaking be the way to go or is there something I'm missing about the trans break. Any input is greatly appreciated. Thanks.
a trans brake engages first and reverse at the same time and lets the converter slip, this will build boost, because you are putting a load on the engine, not the same as putting it in nutral and droping it in drive.
do get better times, get a trans brake.
do get better times, get a trans brake.
Originally Posted by smokinHawk
a trans brake engages first and reverse at the same time and lets the converter slip, this will build boost, because you are putting a load on the engine, not the same as putting it in nutral and droping it in drive.
do get better times, get a trans brake.
do get better times, get a trans brake.
Ya you can drive them on the street. the main problem with driving them on the street that people find anoying is the T400 had no overdrive gear, but you can always put a gear vendor overdrive unti on it
Originally Posted by smokinHawk
Ya you can drive them on the street. the main problem with driving them on the street that people find anoying is the T400 had no overdrive gear, but you can always put a gear vendor overdrive unti on it
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You want to go 8's but you don't know what a trans BREAK (sic) is?
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Originally Posted by z98
You want to go 8's but you don't know what a trans BREAK (sic) is?
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Thank's for stating the obvious.
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Originally Posted by z98
You want to go 8's but you don't know what a trans BREAK (sic) is?
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
$50k for 8's seems a bit steep. I'd guess more like $30k for a solid mid to low 8 second car, not counting the cost of the car since that can vary so much from say a used 1993 to a newer 2002.
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Actually $50k seems a little tight of a budget, if you/he intends driving it on the street AND racing it every weekend. Good luck getting away for under $50k making upwards of 900RWHP all year long and still stubbornly driving it on the street.
And to stay on subject-Transbreak is definately the way to go for you. Btw, it's only there when you engage it. You'll get more annoyed with the reverse-manual valve body you're gonna have to run than the trans brake. Good luck in your goals
And to stay on subject-Transbreak is definately the way to go for you. Btw, it's only there when you engage it. You'll get more annoyed with the reverse-manual valve body you're gonna have to run than the trans brake. Good luck in your goals
Originally Posted by tim99ws6
Actually $50k seems a little tight of a budget, if you/he intends driving it on the street AND racing it every weekend. Good luck getting away for under $50k making upwards of 900RWHP all year long and still stubbornly driving it on the street.
And to stay on subject-Transbreak is definately the way to go for you. Btw, it's only there when you engage it. You'll get more annoyed with the reverse-manual valve body you're gonna have to run than the trans brake. Good luck in your goals
And to stay on subject-Transbreak is definately the way to go for you. Btw, it's only there when you engage it. You'll get more annoyed with the reverse-manual valve body you're gonna have to run than the trans brake. Good luck in your goals
I don't think he'll mind the reverse manual vb. He wanted to use a t56 originally so at least he'll still get to bang gears in some sense. I can't stand automatics that shift on there own, where is the fun in that?
Just make sure you get a good converter (chance, TCT, PTC, etc).
Good luck man and keep us updated!
Don't roll the eyes at me 
I would imagine if you were to ask Harlan how much he had invested in his car before he finally hit 8's, it wouldn't be suprising to be well over $30k. He is well-known for his back-yard mechanics ability. But there's only so much money to be cut by laying on your back in the driveway.
I would imagine if you were to ask Harlan how much he had invested in his car before he finally hit 8's, it wouldn't be suprising to be well over $30k. He is well-known for his back-yard mechanics ability. But there's only so much money to be cut by laying on your back in the driveway.
Originally Posted by tim99ws6
Don't roll the eyes at me I would imagine if you were to ask Harlan how much he had invested in his car before he finally hit 8's, it wouldn't be suprising to be well over $30k. He is well-known for his back-yard mechanics ability. But there's only so much money to be cut by laying on your back in the driveway.
I would imagine if you were to ask Harlan how much he had invested in his car before he finally hit 8's, it wouldn't be suprising to be well over $30k. He is well-known for his back-yard mechanics ability. But there's only so much money to be cut by laying on your back in the driveway.
Originally Posted by tim99ws6
yep, that's him
I didn't say it was going to be an easy path and I'm sure it won't, but thanks for the comments guys. I will surely let everyone know the progress, but it will be some time before this is up and running.
Originally Posted by z98
You want to go 8's but you don't know what a trans BREAK (sic) is?
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Hope your money is long.
8's is a pretty lofty goal, as there are only a handful of people on this board who have done it.
Plan on putting $50k into this car? It'll take that much, especially if you want to drive it on the street.
Nick, if there is a Coan trans or TCT converter (they do lotsa Mustank stuff, did 01Zs converter and where we got Waynes verter rom) lemme know. Your goign to pay high dollar for a good turbo verter, $1200+
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expect to pay more like $100K i think whats his name Ron Dukes i believe with the convertible T/A that runs low 8's has wasted in the area of 100K on his car and it can be street driven.
Originally Posted by 2000Hawk
expect to pay more like $100K i think whats his name Ron Dukes i believe with the convertible T/A that runs low 8's has wasted in the area of 100K on his car and it can be street driven.
Man, I don't know what kind of parts your talking about. I have spoken to multiple builders and no one seems to think this is what I'm looking at, and these people build these cars, not conceptualize them. Thanks though.
I priced this stuff out and I'm well under the 50,000 mark.
Originally Posted by GrannySShifting
Thats kinda funny
Nick, if there is a Coan trans or TCT converter (they do lotsa Mustank stuff, did 01Zs converter and where we got Waynes verter rom) lemme know. Your goign to pay high dollar for a good turbo verter, $1200+
Nick, if there is a Coan trans or TCT converter (they do lotsa Mustank stuff, did 01Zs converter and where we got Waynes verter rom) lemme know. Your goign to pay high dollar for a good turbo verter, $1200+
I figured you find humor in that d.h. Anyway I spoke with Carl @ Rossler Trans and we could get a verter for around 1000. I would imagine he knows what he's talking about, ya think!
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We have around 60K into a friends consistent mid/high 8 slick + low 9 DR car. Basic 331" mustang with a cartech twin T72 kit, T400 with a brake. Keep in mind on a car this fast stuff always breaks and goes wrong. Driveshaft here, axle there, distributor here, fuel pump there. Tweak the converter here, change the rear gears there, try out new tires, etc. It all adds up, and it costs a lot to run a car.
I agree, however, I have partial sponsorship which will help. Plus I have already upgraded quite a few parts of this car as well. Lots and lots of stuff to consider.