thinking of stick-shifted ty ...

mmp142965

say it like you spell it!
Re: thinking of stick-shifted ty ...

A boost launch is still possible with a standard shift car. Someone, I belive it is MSD, makes a 2 stage timing retard which allows boost to be built up in neutral. Then when you dump the clutch the timing goes back to normal. A lot of the DSM guys use it and it sounds really crazy. :2cents:
 

5SpdTy

Member
Re: thinking of stick-shifted ty ...

yea i think its called a stutter box, but it will break all my drivetrain:tup:
 

dgoodhue

BuSTeD 4.3
Re: thinking of stick-shifted ty ...

mmp142965 said:
A boost launch is still possible with a standard shift car. Someone, I belive it is MSD, makes a 2 stage timing retard which allows boost to be built up in neutral. Then when you dump the clutch the timing goes back to normal. A lot of the DSM guys use it and it sounds really crazy. :2cents:

Its a two step rev limiter...you can pull timing as well if you can't build enough boost with a rev limiter.
 

mmp142965

say it like you spell it!
Re: thinking of stick-shifted ty ...

5SpdTy said:
yea i think its called a stutter box, but it will break all my drivetrain:tup:

yep thats it! your probably right about the drivetrain, just a thought though.
 

5SpdTy

Member
Re: thinking of stick-shifted ty ...

a little while ago sumtin was mussed up with my truck and when i steped on the gas all the way it reved up very slow and built alot of boost along the way. this only happened for like 2 mins and then the truck was fine, is there anyway to actually make this happen when u want to. seems like a good way to build boost. imo
 

neat

New member
Re: thinking of stick-shifted ty ...

The T56 transmissions are prety strong in stock form. I'd be surprised if you could break on with less than 550 WTQ. Guys are dead hooking them in the F-bodies to the tune of low 1.5 sixties pretty often.

The most popular 2 stage rev-limiter is called a 2 step and can had from Matt Harlan (y2khawk) on ls1tech.com. Lot's of guys use them to build boost from the line in stick shift cars.

Most recently, a rear mount turbo LS1 lifted the front tires with a 6 speed and a 2 step. While lifiting the tires isn't a huge accomplishemnt, doing it with a rear mount turbo 6 speed car is pretty cool. if you're not familiar with these turbo systems, check out www.ststurbo.com

The rear mount guys catch a ton of Hell from the conventioanl turbo camp, but they seem to perform pretty well.
 

Captain Morgan

Moderated User
Re: thinking of stick-shifted ty ...

neat said:
The T56 transmissions are prety strong in stock form. I'd be surprised if you could break on with less than 550 WTQ. Guys are dead hooking them in the F-bodies to the tune of low 1.5 sixties pretty often..
Its too bad SyTys make like 500 RWTQ in stock form, that 365 Lb Ft at the crank is greatly under rated from the factory. You also have to remember F-bodies dont weigh 4000 lbs and arent trying to spin 4 wheels.
 

neat

New member
Re: thinking of stick-shifted ty ...

Captain Morgan said:
Its too bad SyTys make like 500 RWTQ in stock form, that 365 Lb Ft at the crank is greatly under rated from the factory. You also have to remember F-bodies dont weigh 4000 lbs and arent trying to spin 4 wheels.

My WS6 weighed 3680 with me in it. I know it's not 4k, but it's not a staggering difference.

I don't really see why a 1.5 sixty with 2 driven wheels would be harder on the transmission than a 1.5 with 4 driven wheels. The trans doesn't have any idea what it's hooked to, be it a transfer case in a syty, a 10 bolt rear in an F-body, whatever. I'm not a drivetrain guru though, so maybe I am wrong.

Shooting a 4,000 truck to a 1.5 sixty is going to be a bit harder on parts than doing it with a 3,680 Trans-Am, but I don't think there is a staggering difference. The extra 320 lbs wouldn't make or break the situation, IMO.

If you put 500+ RWTQ infront of any manual trans that needs to be street driven, and blast it to 1.5 sixties routinely, you'll break something eventually. My point was the the T56 in the F-bodies is about as stout as you can get with a factory application manual trans. It's not indestructible by any means, but a 4,000 truck going 1.5 sixties probably won't break it instantly.
 

JSM

Active member
Re: thinking of stick-shifted ty ...

Lets compare apples to apples.

Look at how many syty's have 700 tranny troubles. Guessing around 60% maybe higher have been rebuilt.

LS1's with 700's. Not sure, but I suspect is 20% or so and mostly hard driven cars, not daily's.

SyTy daily drivers have tranny trouble on reg. basis. Not all but over 50% IMO.

I like the 6sp for the fun factor, and in fact ALMOST put one in Daron's syclone. We decided against it due to strength. Not to say one can't be built, but at that point the costs go sky high on parts.

A 6 speed might be fine though if your driving style agrees with it. I will bring the kitty litter though, the first time you side step clutch under boost in a syty.
 

Silverback

BoostRetard
Re: thinking of stick-shifted ty ...

4th gens with 4L60’s that see serious use blow them up on a regular basis, it’s almost getting to the point that if it sees hard use and has an auto you’re more likely to find a 400 in it then a 4L60, and I’ve seen some pretty dramatic failures, in many cases tranny cases that are split lengthwise or just completely blown apart…

T56’s are a completely different animal. They actually tend to be indestructible well into the low 11’s, and then at that point they start ripping up the keys in the shaft keyways, but amazingly you just pop them open, put new ones in and slap them back together. A few people have bent/broken shift forks, but that’s not a power thing really, and you’ll run into the occasional person that has a heavy car with a lot of consistent wheels up launches that might mess up the input shaft or output splines (I suspect that most of the messed up output splines are due to crappy yolks on aftermarket driveshafts and input splines due to clutch issues).

Better parts for any of these problems are available from assorted places and a combination of cryo treated, viper T56 parts or the G-force parts tend to give you a truly reliable transmission well into the 9’s.

As far as weights, there are some really heavy 4th gens out there, my WS6 has had race weights as heavy as 4097 and is usually in the 39xx range. A few of those 9 second cars are HEAVY convertibles (in the 3800 – 4000 or more range) and make regular passes where they dead hook and pull the wheels past the 60’ lights.

The real weak point/problem area is not the tranny but the clutch, and the LT1 and LS1 versions both have different problems due to design changes and manufacturing plant changes.

Then we can talk about some of the crazy stuff that the viper guys do with their T56’s.

I doubt that most of the sy/ty’s that would consider this kind of swap would put more stress on it then these guys do already. The real issue is how fun/appropriate a swap would it really be? I would argue in most cases it wouldn’t, since stock(ish) 4.3’s don’t really rev and you’d just be shifting constantly. Yes, there are some 4.3 build ups that shift in the 6-7K range that would be fun with it, but they are also usually the ones that are not that interested in going in that direction and are mostly happy with just dumping a 400 in and being done with it.
 
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