TeamCapri

Tech, Repairs, Upgrades => Engine & Drivetrain Swaps => Topic started by: bratboy_y2k on October 30, 2016, 04:19:47 PM

Title: strongest transmission?
Post by: bratboy_y2k on October 30, 2016, 04:19:47 PM
can anybody tell me what the strongest manual transmission that will bolt into a capri is? thanks
Title: Re: strongest transmission?
Post by: WashiestSnake on October 30, 2016, 04:27:33 PM
The transmission in the XR-2 is the strongest of the two being as it can be made with better internals, and a LSD. It has some bad problems with twisting from high torque that the LSD fixes.
Title: Re: strongest transmission?
Post by: bratboy_y2k on October 31, 2016, 08:44:44 PM
So there is no stronger transmission out there? What is the transmission code?
Title: Re: strongest transmission?
Post by: Rocketman on October 31, 2016, 09:45:03 PM
The transmission in the XR-2 is the strongest of the two being as it can be made with better internals, and a LSD. It has some bad problems with twisting from high torque that the LSD fixes.

It has a weak differential, which the LSD fixes. Once you get into higher powers (idk, 300,350+) you still have case flex issues which causes 3rd gear teeth to shear off

Look on Clubprotege. There's folks who use an adapter plate to run a Toyota transmission. The axle combo works on BG cars so you will have to get creative to run it in a BF
Title: Re: strongest transmission?
Post by: bryanknight on January 21, 2018, 09:20:48 PM
can you have the gears sent off to hardener them to make them stronger? 
Title: Re: strongest transmission?
Post by: Rocketman on January 21, 2018, 09:29:39 PM
Yes but you're still going to have to contend with all the other issues such as shaft and case flex. Hardening gears will only do so much
Title: Re: strongest transmission?
Post by: bratboy_y2k on June 20, 2019, 10:34:10 PM
Is the Ford escort gt trans the same or stronger than the turbo trans?
Title: Re: strongest transmission?
Post by: Rocketman on June 20, 2019, 11:37:47 PM
Same internally, slightly different bell housing angle and uses hydraulic clutch
Title: Re: strongest transmission?
Post by: bratboy_y2k on June 21, 2019, 01:21:23 PM
I'm thinking we ought to be looking at torque ratings instead of horsepower, but I'm looking at 220 foot pounds at most could I just want something that will last even if you beat on it a little bit.
Title: Re: strongest transmission?
Post by: Rocketman on June 23, 2019, 06:34:53 PM
There are no Capris pushing this kind of power so we don't have folks here reporting their findings firsthand.
The info I have gathered on transmission reliability comes from watching various Mazda forums over the years.

The Bore/Stroke ratio of the Capri is relatively square, with a tad more HP vs Tq, they are roughly even.
Like I said above, the weakest spot of the transmission is the diff, if you correct that then you should be good
There's lots of good info on the Clubprotege forum, I suggest having a poke around there. There were guys going thru extreme measures to get the g-series beefed up with varying levels of success but also $$$$ investment. Billet bearing cup/plate in a modified case, external framework around the case to prevent flex, custom gearsets, etc