Okay, I have a 305 4bbl with a 700r4 tranny. It's putting out 230 hp, and 290 lb/ft of torque. I want to swap in a t5 tranny soon, but Im just about to start putting in my twin turbo setup.

Im guessing its gonna be putting out about 350hp/400lb/ft depending on the boost. Now the t5 has a 285 lb/ft torque rating. Does that mean that this transmission wont be able to hold up with the torque my engine is gonna be making? Or will it, but it just wont be as powerful?

 

If you are going turbo I would look for something other than the T5, a T56 would due nicely.

 

Is there a lot more work to installing a t56, i read everywhere that its longer than the t5 and needs to be taken down a bit, and other stuff that makes it seem like a hassle

 

if you get a 5 spd from i think 88 to 92 they were made stronger and could hold up to 330 horspower called a world class borg warner not just a borg warner not sure on the torque

 

The "ratings" are a total joke. You can trash a T-5 with a 6-cylinder. Just ask the S truck folks.

There's no significant difference in strength between the 1st design T-5 and the 2nd design one which for some reason got that stupid G0d-awful 80s "One Minute Manager" / "Management By Objective" / "Total Quality Management" / "Six Sigma" buzzword slapped onto it. Whatever dork decided to use that buzzword as a model name" ought to have a special place reserved for him in Hell, in the 8th circle, where he will spend the rest of eternity trying to achieve Eight Sigma effectiveness in all of the eternal torments around him.

Manual transmissions and turbochargers don't mix well anyway.

Sounds like you need to do some research before spending giga$$$ turbocharging a 305 (putting lipstick on a pig).

 

The name stuck because he was a black belt

 

I promise it won't be as much as a hassle as properly setting up twin turbos on your car. I have a t56 in my gta and it was almost a direct bolt in, very easy. For your setup going from an auto to a manual, its basicly the same amount of work to put in a T5 or T56.

 

the answer to the question is
the t-5 is rated at 300 lb-ft of TQ
you will encounter the added expense to your conversion if you use this
tranny with your planned turbo set up. save the money for a T56,the only real mod to the interior is the hole for the shifter,it will need the back side of the hole to be extended 3/4-1",T56 X-member can be had for 100.00 and a t56 w/ all parts needed can be had for 800-1500 its worth the wait and initial expense.

 

Hey, its a daily driver, I want it to get good gas milage, plus with 230hp it kicks some ***, im twin turboing it for the experience, and for fun. I know it wont be a beast, but itll still take alot of the cars out there.

Best run with the 305, no lie dead serious, was a 12.8 at 117, I still dont get why people say they cant make it past 14, i guess im just an insane driver, like to shift thru the automatic gears ......

As for the t56, since i dont have the hole in my car for the shifter, will it be hard matching it up and cutting a hole to fit the shifter, or can i just cut a massive hole, install the tranny, and then mount and weld some metal pieces around it. I like being creative more than being a perfectionist lol .... Plus their is the guides to installing a t5, so Ill be able to follow that if I have problems...

and how do manual trannys not mix well with turbos, their meant to be turbocharged! An automatic with a turbo is like putting nos in a golf cart, its not gonna go anywhere cuz it doesnt build enough rpms that you can control. Come on, who in their automatic car can hit 6 grand in 1st gear... This way with a stick car, Ill be able to control the rpm's and what gear to switch into for perfect boost...

 

Not that I am arguing with you. But thats some kinda 305. I think you should go to the racing board and explain it. It will be like refuting a known law of the universe -- 305s don't do 12s.

If you do the TT it won't be a daily driver for long. It will be an inbetween-repairs-and-figuring-out-whats-wrong-after-my-last mod driver. It will run like crap and not get very good gas mileage till you figured out all the angles.

and a TT should make 400hp which means alot of driveline upgrades or you will be sitting in a tow truck alot more than planned.

I like the TT upgrade it sounds great but I recommend getting a Toyota Tercel for a daily until the f-body is ready.

 

Alright thanks for the ideas, the car already is heavily modified, self ported heads, new comp cam, edelbrock performer rpm intake, thunder series 650 cfm carb, hedman hedders, true dual conversion with 3 inch flowmaster exhuast, plus I took out the back seats and gutted the trunk, removed the computer parts that control the engine, and it weighs alot less than normal, plus I am right at sea level. I have a nissan altima which I have been using as my dd while I was getting my car worked on.

But, I was arguing with myself about it, its a twenty five year old car, I suppose it could just wait. I wanted to do an engine swap down the road anyway. The transmission will come first tho, Ill look into the t56. If I swap in the t56, is there gonna be anymore work that will be needed on a new engine if I get it? Or should I just get the new engine first and than put the tranny in. I really dont know the dimensions of my car, nor am I good at physics, but Could I install the tranny to the engine, and then install the engine with the tranny already on it?

 

If you are only looking for 350hp, why bother with all the hassles of a twin turbo setup? Wouldn't it be a lot easier to go with something more streetable like a mild 383 short block? That way you can use all your existing stuff from your 305. It's working well enough to run 12.8 with a 305, so it should be ok with a 383

 

im limited on the amount of money i can spend... I had 1500, bought the turbos, and all the accessories, now Im down to 700, I wish I had the money to buy a 383. I figure Ill just make the best out of my engine while it lasts, thats why im looking into a transmission for the turbo's. Once this whole kit goes, i wanna build my own engine from scratch. But it'll be nice to have a decent stick transmission in there for the new engine too...