T-5 Tranny conversions?

[sportscarworksh]

We have t-5 boxs that fit Alfa, they use Alfa, bell house, trans support, shift leaver. The leaver comes up in the right spot and even use Alfa through out bearing. The street unit has many possable ratios and overdrive ratios. It curently uses carbon fiber syncrs.
The RACE ONLY box uses dog rings insted of syncros . Curently Im trying to source a .88-90 overdrive gear. Sooooooooon I sware, but just never gets done.
I can send pictures ETC.

Ken
SportscarworkshopS
1210 Myers st
Richmond Va 23230
1-804-539-2532
SportscarWorkshops

[Alfar7]

While helping Krys Dean with her GT1 Camero I became too familar with her gearbox as it was not up to the task of 800+ HP and 600 lbFt tq.
But the T5 based G Force Dog gear box would make a great small motor trans as the large gear 9310 shafts would last forever. The best part is gear ratios, price and the fact that the normal long tailshaft means you can use "typical" slip in u-joimt, single piece drive shafts, and forever be done with fricking giubos forever!

The ratios are available in syncro and dog engagement. 2.94/1.94/1.34/1.0/
.73 or.90 or 2.46/1.54/1.22/1.00/.73 or .90 or 2.92 / 1.99/1.34/1.0/.90 or .73
G-Force Transmissions and Long Shifters
Prices for the dog box was about $3500.00

[flybird-T]

Good Morning Alfa Fans!!
I'm back again with more info before I document the entire T-5 conversion on the Alfa BB. The pictures below shows the mock-up using the T-5 tranny and the Alfa 2000 bellhousing, the 1750 bellhousing should be the same. The dimensions and balance of the unit is very much similar to stock. This conversion will use the stock clutch slave cylinder, stock throw-out bearing, and stock pressure plate/w a 8.5 in. Ford clutch disc. The specialty item is the adapter plate which allows the T-5 tranny to fit directly onto the Alfa bellhousing. The list of the following Ford T-5 trannys will fit directly onto the adapter, and then onto the bellhousing; other T-5 trans will fit with slight mods as I will note later.

Following the source of the transmission, are the factory gear ratios;

1.Factory 94 Mustang 5.0 - 3.35 1.99 1.33 1.00 0.68 rev.3.15

2. Factory 94 Mustang 3.8 - 3.35 1.93 1.29 1.00 0.73 rev.3.15

3. Factory 94 1/2 Mustang 3.8 - 3.35 1.93 1.29 1.00 0.73 rev.3.15

4. Factory 94-97 Mustang 3.8 - 3.35 1.93 1.29 1.00 0.73 rev.3.15

242 Factory 94-95 Mustang Cobra 5.0 - 310 3.35 1.99 1.33 1.00 0.68
rev.3.1

[ALFA GTV6 GP]

Yes very interesting You have my attention.
I would be interested in the V6 version for a couple of my cars.
John

[DonBeeson]

If this could be worked into the transaxle formation, that would be awesome. I've been dreaming of corvette gearboxes.

[bianchi1]

..am i seeing something wrong here..this si not ready for mounting yet? right? there are only 2 nuts holding the bellhousing to the gearbox?

[flybird-T]

Hi bianchi1,
Nothing wrong, this was done only to photograph the mock-up. The other holes are drilled, and fit correctly. By the way -- sharp eye you have there!!
flybird T

[bianchi1]

..just wondering..and thinking to myself ( i should do this)....flybird, what part of bay area are you in, i am in sacramento

[larry]

Looks great but I don't think it's going to fit in a stock tunnel, that box is very square on top, stock is not and very tight to start with. Cutting the tunnel is fine for a few, but most won't do it, leads to new problems like, the heater box no longer fitting, etc. etc.

Alfa Parts Exchange

[Duk]

Quote:

Originally Posted by DonBeeson If this could be worked into the transaxle formation, that would be awesome. I've been dreaming of corvette gearboxes.

[flybird-T]

Hello larry,
just read your post, and as usual, I respect your experience, and contributions you've made to the Alfa community. You may not remember, but we have had conversations in the past about misc Alfa parts. But in this instance, larry, I have done extensive research and mocking up of this endeavor, Just to try to reveal any shortcomings that I might experience before I give this project an OK. Believe me, I truly enjoy all the questions, opinions, and even questionable input into this conversion.
Now, to the reply to your post; the widest dimension of the T-5 measured at the top of the tranny is only 8.5 inches wide (suprising huh?) the spider's bottom measurement of the trans tunnel is 10+ inches, then mildly curves in toward the top of the tunnel.
MORE than enough room. Even if it were close - there always the technique of putting a hammer in the right place, before even considering cutting. Below I have posted a pic showing the top of the T-5 at it's widest point.

flybird -T

[PSk]

Quote:

Originally Posted by flybird-T Alfajay: Very good questions, and I have good answers; the T-5 was originall built by Borg-Warner, later sold to Tremec. BW was original supplier to many different car manufacturers (some are Ford, GM, Nissan,) so availablity is extremely good.

[adelspyder]

I must say that Ken’s rear housing for the T-5 looks impressive (it almost looks like it would be the same length as the original Alfa gearbox, making it bolt right up to the standard engine and (maybe) prop shaft.

Judging by the photos of the T-5 on the Alfa bellhousing, I have to agree with Larry’s suspicions on the box’s overall height. Just for interest, I’ve included some photos of the Alfa gearbox compared to the Getrag 265, including the critical front-on shot which compares the height of each box using the input shaft as the standard reference point.

While they look nearly the same, by the time we made up a bellhousing for the Getrag and installed it, it struck the top of the Spider’s trans tunnel, and still had to go up another ¾ inch to locate the shaft in the stock, aligned position. By the time we cut two slots either side of the tunnel to square it off, then make up two patch panels and weld up four lines, we figured it would be less welding to simply cut and weld a new piece of sheetmetal to the top of the trans tunnel.

While the Getrag and tunnel mods will still allow us to install the heater box, console and side panels, there is really not much room to play around with – while the heater box sits in the location right above the bellhousing with around 20-25mm clearance from the standard trans tunnell (hint – don’t try and mess with the tunnel immediately above where the bellhousing would fit), you really can’t afford to raise the trans tunnel much more than an inch higher above where the gearbox would mount, or else getting the heater box in and out may prove either impossible, or very very difficult.

Anyway, it’s just my opinion – I guess that seeing as how Ken has fitted the T-5 to the Spider, he would really know the true answer as t how it fits the trans tunnel!

Good luck

[ECARRILLO]

Interesting, just want to be part of this.

[flybird-T]

ECARRILLO,
just read your post. I'm glad to hear you're interested in this project. Your interest and enthusiam is what this sport is all about!! Right now it seems like the height of the T-5,
and its' fit into the spider trans tunnel is being determined. I will personally be tearing down the trans area to visualize and measure if there will be any interference with the heater box and stock console. If you have any input from your experiences with the spider in this area, please add to the ongoing posts.

flybird-T