DSMsamurai666
10+ Year Contributor
- 89
- 0
- Feb 9, 2009
-
Macomb,
Michigan
Anyone know where I can purhcase some trans internals to rebuild my own trans to hold more power? I can't seem to find anything online although I didn't really expect to.
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I only heard great things about jacks, from like 10 people on this site. When I get the money that's were I'm going.
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tre stands for team rip engineering! i was actualy just at the TRE shop getting a tour and a full detailed explanation in person by the people who actualy do the builds. john (the TRE head honcho) built a guy a trans that is going over 200 mph. this guy has been on the same trans for 3 years, and its still going good. theres also a guy on a TRE trans that does consecutive 8 second passes. ill get more info on that for you tomorrow, like a dyno sheet and time slip with a write up on what was done to his trans.
i did an awfull lot of research trying to figur out which trans to get when i ordered mine. my choices were shep, jacks, and TRE. spoke with all of them on the phone asking tons of questions and i ended up with a built to the teeth TRE. i would highly recomend checking them out. WELCOME TO TRE## WE SPECIALIZE IN MANUAL TRANSMISSION REPAIR
269-382-2669
i actualy ordered one from him TRE over a year ago and i seriously beat the shit out of this thing, and not a single problem. i went to his shop because im now using a 2.4 magnus motor and want to do slightly taller gearing.
)..How can you say you only heard great things from Jacks? No good ones about TRE?? Not dogging ya, but they both offer exceptional products.
On a side note.. Have you ever rebuilt a trans before? Ill tell ya, you gotta get all your clearance's right for the bearing preloads, center diff preloads etc.. If not, then you'll be in the same boat I was just in. Gaurenteed failure. It's easy to take em apart. but to get it right the first time and not have to worry about it again is another question. Take it from me and lots of other people who have attempted this, and save your self a head ache and have one of them rebuild yours and get the warranty.. You can get the stage 1 or economy rebuild for less then a $1000 including shipping. But now that I see your wanting 7-800 hp, you better know what your doing if you do it yourself. Save your self the hassle and save $1800 and get a good rebuild with a 4 spider gear diff, gear detail work, shot peening and some double synchro's.. Not being a dick but giveing my $.02 cents..
Good luck bro
I have built several trannys with no problems. I just got done with a custom build for my car. 94 awd tranny, 96+ 2nd gear with double syncros. new hub and sliders for 1-2 and 3-4. I have the 91/92 3/4 gear set. Tranny shifts like like a warm knife through butter. If you take your time and pay attention its not very hard at all.
To the original poster. It doesn't matter who you go with when you start getting 450 hp plus there is a good possibility it will break. Mitsubishi didn't design these transmission with the thought that guys like us where going to be putting down 450 hp through them. Especially if your talking about making 700hp. I have shattered 3/4 gears on hwy pulls not even launching. It doesn't matter who you go with shep, tre. jacks or whether you go with evo stuff or build it your self. It will break its just a matter of time and when. Your best bet is to go with something similar what i have ,but get your gears cyro treated, shot pened or micro polished etc etc. Just dont expect to get 50,ooo miles out of a tranny that your going be making 700hp with.
I have built several trannys with no problems. I just got done with a custom build for my car. 94 awd tranny, 96+ 2nd gear with double syncros. new hub and sliders for 1-2 and 3-4. I have the 91/92 3/4 gear set. Tranny shifts like like a warm knife through butter. If you take your time and pay attention its not very hard at all.
To the original poster. It doesn't matter who you go with when you start getting 450 hp plus there is a good possibility it will break. Mitsubishi didn't design these transmission with the thought that guys like us where going to be putting down 450 hp through them. Especially if your talking about making 700hp. I have shattered 3/4 gears on hwy pulls not even launching. It doesn't matter who you go with shep, tre. jacks or whether you go with evo stuff or build it your self. It will break its just a matter of time and when. Your best bet is to go with something similar what i have ,but get your gears cyro treated, shot pened or micro polished etc etc. Just dont expect to get 50,ooo miles out of a tranny that your going be making 700hp with.

Quoted for truth. People that don't build transmissions have no clue how small our gears are compared to a true performance box. A lot of people get the double synchro 3-4 not realizing that the late 91, early 92 3-4 single synchro is actually a lot stronger. The problem with dsm transmissions when it comes down to it is size. No matter what you do to them or what gears you use they will always be smaller than a good performance gearset. The formula i have found to keep a trans together is a large turbo, and big cams. The secret is to make as much power as possible, with the least amount of torque. A 16g let loose on e-85 can easily spike 450 ft/lbs, while putting less than 400 hp to the wheels. A big turbo, and some 288 cams can make 600hp, with the same amount of torque. I build all of my own, and a good bit for others. The most practical option is the 91-92 gearset, shotpeened gears, welded center diff, and shimmed at least 2-3x stock preload for the shafts. I never understood why the input shaft with tapered roller bearings, was set with endplay from the factory.
But if it is working for you, then keep it up. Every one is diff in certain areas of things..I set my preloads a little tighter than stock.On this tranny build I set the preload to .01 on the input shaft and mitsu spec is 0-.05 endplay. I figure with the heat of the trany it will expand just a bit and put it somewhere back in the endplay side of specs. On the interemediate it calls for .08-.13. I set mine up to .14 preload again taking into consideration of the expansion of the case. When I build a tranny for someone local or a buddy I try different preloads. I have realized that setting them a couple of thousands more than stock works fine and shifts great.