[dcook_14]

Originally Posted by huggy bear a t-56 is ideal then right? cause of the 6th gear? but its heavier right? Also I looked into getting one like 2 years ago and found that I have to do cross member mods and relocate the reverse light wire. is it worth it in thinking that way? Dcook I know you were talking about the torque rating on the t-56 but I have heard of termis pushing well over 500 plus with the 385 you said that wouldn't make any sense since the termis make 410??

Depending on your application it can be great. This debate is kinda like the 4.10s vs. 3.73s thing... You have to get a cross member from a termi that came with the T-56 I believe, not sure about the reverse light wire. I think you'll need a shorter driveshaft too since the T-56 is bigger. I think you can also get that from a termi. Either way the crossmember is cheap and the driveshaft would be aluminum, so it's an upgrade I was gonna do anyway. I'm confused on the torque capacity too... maybe I'll call them this week and see whats up

Originally Posted by 03_StangGuy The weight difference is negligible, as well as the 1st gear difference. The slightly taller 1st will help you not light up the tires when you start putting more power down.

People do some pretty crazy stuff to lose a couple of pounds though (taking carpet out, door panels off, blah blah) so the weight might be worth it to a drag racer. Especially since they probably aren't gonna need to shift from 4th to 5th anyway, which is the big downfall of the 3650.

Since I have a centri blower, I'm not going to make huge numbers at low rpms anyway, so the first gear thing doesnt really matter to me. Even more so since I only drag it a few times a summer.

Originally Posted by huggy bear negligible??????

It means that the difference really wouldn't matter, you can neglect it (see the root word there? )

[huggy bear]

Originally Posted by dcook_14 Depending on your application it can be great. This debate is kinda like the 4.10s vs. 3.73s thing... You have to get a cross member from a termi that came with the T-56 I believe, not sure about the reverse light wire. I think you'll need a shorter driveshaft too since the T-56 is bigger. I think you can also get that from a termi. Either way the crossmember is cheap and the driveshaft would be aluminum, so it's an upgrade I was gonna do anyway. I'm confused on the torque capacity too... maybe I'll call them this week and see whats up People do some pretty crazy stuff to lose a couple of pounds though (taking carpet out, door panels off, blah blah) so the weight might be worth it to a drag racer. Especially since they probably aren't gonna need to shift from 4th to 5th anyway, which is the big downfall of the 3650. Since I have a centri blower, I'm not going to make huge numbers at low rpms anyway, so the first gear thing doesnt really matter to me. Even more so since I only drag it a few times a summer. It means that the difference really wouldn't matter, you can neglect it (see the root word there? )

Just remember your dealling with a retard here! lmao

[SteviGX]

I love my promotion 3650

[huggy bear]

Originally Posted by SteviGX I love my promotion 3650

Thats the route ill prolly take

[dcook_14]

Originally Posted by SteviGX I love my promotion 3650

It also looks like you drag race a lot. A built 3650 might be a better route to go in that situation rather than buying a used T-56 and maybe having to rebuild it anyway. I'm not sure what the price difference is between a new 3650 and a new T56, but if it's not much then why not go with a T-56. You can get one that's geared how you want it. If you really like the gearing in the 3650, get the one that's geared the same except for the extra gear between 4th and 5th.

I think I'm leaning more towards the spirited DD/weekend autocross so I think a T-56 would be a lot better for what I want to do.

And Stevi did you build your transmission yourself. If not, according to your sig, you should STFU

[huggy bear]

Originally Posted by dcook_14 It also looks like you drag race a lot. A built 3650 might be a better route to go in that situation rather than buying a used T-56 and maybe having to rebuild it anyway. I'm not sure what the price difference is between a new 3650 and a new T56, but if it's not much then why not go with a T-56. You can get one that's geared how you want it. If you really like the gearing in the 3650, get the one that's geared the same except for the extra gear between 4th and 5th. I think I'm leaning more towards the spirited DD/weekend autocross so I think a T-56 would be a lot better for what I want to do. And Stevi did you build your transmission yourself. If not, according to your sig, you should STFU

you just got called out yo!

[03_StangGuy]

Originally Posted by dcook_14 People do some pretty crazy stuff to lose a couple of pounds though (taking carpet out, door panels off, blah blah) so the weight might be worth it to a drag racer. Especially since they probably aren't gonna need to shift from 4th to 5th anyway, which is the big downfall of the 3650.

This is trun in which case your goin to want to know exaclt which trans you have and want. Most T-3650's weigh 120lbs one model is 132. The t-56 comes in from 108-138. Unless your gutting your car I wouldnt worry bout the weight difference.

[huggy bear]

Originally Posted by 03_StangGuy This is trun in which case your goin to want to know exaclt which trans you have and want. Most T-3650's weigh 120lbs one model is 132. The t-56 comes in from 108-138. Unless your gutting your car I wouldnt worry bout the weight difference.

good info

[03_StangGuy]

Anyone know if that 108lber can go in our cars?

[dcook_14]

Originally Posted by 03_StangGuy Anyone know if that 108lber can go in our cars?

I don't see why not, here's the specs on it.

T-56 model 1247
108 lbs - Weight
450 lb/ft - Torque Cap
3,460 lbs - GVW

Gear Ratios
2.66
1.78
1.3
1.00
0.74
0.5


It's the same specs as the Viper model 1806 except it has a lower torque cap

[SteviGX]

Originally Posted by dcook_14 It also looks like you drag race a lot. A built 3650 might be a better route to go in that situation rather than buying a used T-56 and maybe having to rebuild it anyway. I'm not sure what the price difference is between a new 3650 and a new T56, but if it's not much then why not go with a T-56. You can get one that's geared how you want it. If you really like the gearing in the 3650, get the one that's geared the same except for the extra gear between 4th and 5th. I think I'm leaning more towards the spirited DD/weekend autocross so I think a T-56 would be a lot better for what I want to do. And Stevi did you build your transmission yourself. If not, according to your sig, you should STFU

I didn't build it but I put the sucker in and tore the old one out. Did my clutch pilot bearing. The thing with the t56. its' the same 6th gear ratio as the 3650's 5th gear. 4th gear ratio's are the same 1:1 in both so for a drag car the difference in mininmal. I personally don't like how tight and notchy the t56 is, thats why I didn't go with it.

I paid 1420$ to my door for a carbon syncro'd built to stand my way of driving unit. Only thing different between it and the 750hp unit is that I went wth a 10 spline input shaft. I personally feel that unless you autocross a t56 is just an extra gear you have to shift that isn't worth the extra money. For guys like jazzer the t56 was the way to go.

[dcook_14]

Originally Posted by SteviGX I didn't build it but I put the sucker in and tore the old one out. Did my clutch pilot bearing.

Ha, just giving you shit man I know you do a ton of your own work. Building your own transmission probably isn't a whole lot cheaper than just buying one, so you might as well. Plus transmissions are a whole new monster.

Originally Posted by SteviGX The thing with the t56. its' the same 6th gear ratio as the 3650's 5th gear. 4th gear ratio's are the same 1:1 in both so for a drag car the difference in mininmal. I personally don't like how tight and notchy the t56 is, thats why I didn't go with it I paid 1420$ to my door for a carbon syncro'd built to stand my way of driving unit. Only thing different between it and the 750hp unit is that I went wth a 10 spline input shaft. I personally feel that unless you autocross a t56 is just an extra gear you have to shift that isn't worth the extra money. For guys like jazzer the t56 was the way to go.

Not all T-56s have the same final gear drive as the 3650s!!! If you do a lot of highway driving, it might be worth it to get a T-56 with the .5:1 sixth gear rather than a 3650 with a .68:1 fifth gear. I know some of the Z28 Camaros with 6 speeds get like 30 mpg.

I agree, this probably isn't the most cost efficient transmission for a car that sees a lot of drag strip time. Definitely a move to be considered for a car that sees a lot of miles or for an autox car or something like that. For just a weekend cruiser you're probably pissing away money that would do better if put towards other mods.

If money doesn't matter though, why not get a T-56? Besides the feel of it (I've never driven one so I don't know) you can get it basically geared the exact same but with the extra overdrive.

Jazzer, or anyone else, how much is it for a new T-56? Links would be great!

[carnut59]

i am driving my stang as a dd now and with the 4.10's in it, i wish i had the 6th gear on the highway. i hate filling her up every 3 days.

[Jazzer The Cat]

Well, by now my boy Lefty usually chimes in and links my pepes up with the pertinent info, but he seems to be missing in action.

I will track down the link and you guys take a few and listen to some Miles Davis at the Plugged Nickel and the infamous set four from 12-13-65 and ...... reeeeeeellaaaaaxxxxxx a bit

T-3650~T56 swap thread

Jazzer

PS.... dcook with some absolutely FAB-U-LUS knowledge dropped for his pepes, yo!

[Jazzer The Cat]

That .8 5th gear of the T-56 is really of no particular use except for cruisin' at sub-highway speeds of 50 MPH or so. I use it going up HWY 101 out of Sausalito to SF and such. Lots of areas around Napa that are in this speed range and had to choose between 2600 rpm 4th or 1600 rpm 5th in my T-3650.

The T-56 and that .8 gear was the purrrfect answer

Jazzer

[rider4life350]

Originally Posted by Jazzer The Cat Yup, the taller first gear seems to be the rub on the T-56 when it comes to lauching, but pepe this: Take a look at the T-3650/T-45/T-5 3.38 2.00 1.32 1.00 0.68 ... now the #1386 T-56 3.36 < nearly identical to the T-3650/T-45/T-5 2.07 1.35 1.00 0.8 < check out THIS bad boy 0.62 ... now the #1260 T-56 2.97 < my first gear 2.07 1.43 1.00 0.8 < check out THIS bad boy 0.62 I did some MPH/RPM readings on all my gears before/after my swap. It was impossible to tell via "feel" or by the numbers on any gears except 1st and the new "inbetween" 5th of my T56. I can just about guarantee you would never tell the #1386 T-56 from ANY T-3650/T-45/T-5. Jazzer... speakin' the gospel to his pepes PS... Danno is plenty cool enough to run The Jazzers sign off

which one came out of an 03 cobra?

[dcook_14]

1694 Ford Cobra

10 Spline Input shaft
27 Spline Output shaft
425 Torque Cap (no one is real sure what this means, since a lot of termis go over 425 tq on the stock tranny
2.66 -1st
1.78 - 2nd
1.30 - 3rd
1.00 - 4th
0.80 - 5th
0.62 - 6th
32.47 Inches Long

[Jazzer The Cat]

Man.... 2.66 is a tall first gear

One would likely want to go at LEAST 4:10's, if not 4:30's to run that on the 1/4 (I'm not a 1/4 guy, I'm a quarner guy). I cannot tell you much about torque capacity, other than it is ultimately a measurement of the supposed "stress" one can apply to the trans and not break. Depending on how one "applies" that torque, will depend on how long it lasts before it breaks. One could run 1000 HP/1056 T and if you drove your car as I do mine, you could run any trans in the world and not blow it up. My guess is that pretty much 100% of those that run such HP/T numbers, drive their car a bit harder than I do, so buy a trans built for the numbers that feed it

Hitting the 1/4 mile is going to be HARD on the trans, so get one that is best suited for such events. Hit up the drag race forums and search out all the threads of those who 1/4 mile their ride* Listen to SWEET2K as he is VERY much into this endeavor and learned the hard way what works for lauching over time.

If you want that taller gear for highway cruising, you are gonna have to go T-56 and be less aggressive on the 1/4 mile. Either that or find someone who will put a .5 final gear in a T-45

Jazzer

*the booring section of the net

[dcook_14]

Originally Posted by Jazzer The Cat Man.... 2.66 is a tall first gear

I'm not 100% sure but everything that I've ever read says that the 1694 is the tranny that went into the cobras.

Originally Posted by Jazzer The Cat Hitting the 1/4 mile is going to be HARD on the trans, so get one that is best suited for such events. Hit up the drag race forums and search out all the threads of those who 1/4 mile their ride* Listen to SWEET2K as he is VERY much into this endeavor and learned the hard way what works for lauching over time.

Yeah you definitely need a good trans if your going to drag it. That righ reving, instant smash gas type driving will tear almost any stock trans apart if you're putting out any kind of decent power. If you really want to drag race and don't mind the flaws in the 3650, a T-56 is probably not for you. I'm pretty sure you can get a built 3650 or T45 for the price of a stock T-56. Look into Pro Motion like mentioned earlier on this thread.
Jazzer and Sweet are both going to give you great advice. Sweet leans more towards the 1/4 and Jazzer is more into the cornering aspect, so it's nice to get opinions from different ends of the spectrum.

As for me, I haven't decided what the hell I'm going to do with my car. First I though I wanted to drag race it, then I did it a few times and didn't think it was that fun. I looked into doing autocross but there doesn't seem to be many events around here to do. Then I played Need for Speed Carbon and thought it would be a good idea to drift my car, but a drift setup doesnt work too well on a DD and my pockets aren't deep enough to keep buying those tires.

Since I'm so undecided, I figured I'll just build a higher HP motor and go from there. After the motor will be a trans, hopefully I have enough money for a built T-56. Then I'll have to decide what I want to do with the car and start re-working my suspension.

[Jazzer The Cat]

twisties twisties twisties twisties twisties twisties twisties


Jazzer.... drawing dcook ever closer to the light