M-22 or ???: Trans.selection help





Having driven crash box Muncies and T-10's for years on the street.....I am just flat in love with the GF5R you convinced me to buy. It's by far one of the best/fun things I've done with the car! Pulling that Long shifter at 7500 rpm or so is just pure magic!
I think you're pretty much limited to a synchro trans if you don't want the *slop* that a dog ring/face plated setup has. That's why they shift so well It's because there is a great big window for the slider to fit into when you shift. Of course if you *goose it* or let on and off rapidly you'll feel that slop. A big 'ole cam thumping can make it happen too if you end up in the *sweet spot* and keep it there.
But I have to say, I just don't notice it much on mine. Mark has ridden in and driven it too...that's what convinced him to buy yours! It does take a little practice to drive..and it won't ever be as smooth at low speeds as a synchro...but it can be reasonably smooth.
For the 632......I would still like to see something with some strength. Obviously the TKO and Richmond did OK on the dyno....but I wouldn't give either one of them any hope with some traction and a 7000 rpm shift in your car. The dyno is a pretty smooth deal as compared to banging it down the track.
The T-56 is going to be about the strongest thing I can think of with a synchro. G-Force makes them too. Not sure of fitment..but I know of a couple of C-3's that have managed to put them in without too much drama. I wonder if Liberty makes a synchro straight cut gear setup for a Muncie? I bet they could if you asked.
Then there is the Lenco ST1200..but they say they eat some power too. But being a planetary trans shouldn't be any slop in it...and smooth to drive. They freewheel when you let off..so no jerking.
Let's get that thing running..one of these days when I'm up there I want to go riding...at about midnight when no one is around!!
JIM
That GF-5R is the perfect trans for your combination - and it was for mine until I got in my mind that I needed a PG. Hey, if Mark wouldn't have wanted it I would still have it to this day.
As far as the *slop* in the trans, yah that became a real annoyance for me. The other thing is the constant banging of gears - you simply can't shift the trans any other way but fast. Hey, I'm not telling you anything you don't already know.
If you don't notice the banging inside the trans when trying to cruise then that just tells me you have too small of a cam!

I don't believe that a T-56 will fit in the car without major surgery but I really don't know. I don't need any kind of overdrive capability with this deal.
I would just like to get the strongest synchro style trans that is available and will fit in the car. Does it have to be a 4-speed - not if there is something out there that is better.
I have looked into the Liberty deal and they don't have anything I am interested in.
Oh, and the car is running right now. I just installed the Isky EZX roller lifters and plan on making a few runs this weekend. When can I expect you to swing by?
Steve
Do you know what has been done to this trans to get a 650 lbs/ft torque rating? Does is come from the factory that way or do they modify the internal components?
Also, do you know what the helix angle of the gears are?
Steve
While I can't afford the complete AutoGear super-Muncie, the M22 wide ratio gearset is front and center on my current overhaul wish list, along with the mid-plate and other bits. I don't have any future plans to drag race my C3, so I believe it ought to handle the mere ~500hp it'll see out of my next build up.
See there's yet another vote for the McLeod street twin. Looks as if that may deserve a spot on my wish list, too.Back on point, IMHO when behind an engine with a broad power band, the wide ratio steps make good sense vs. those of the close ratio, which is all about keeping revs within a narrower band.
BTW, I'm curious to know who proshifted your M22 and, in particular, how well it downshifted.

On a side note, just curious if the power loss was the same with all the different manual transmissions you tried on the dyno. Of the top of my head I would think the G-force would be less. Good luck and have fun in the research.
Bill
On a side note, just curious if the power loss was the same with all the different manual transmissions you tried on the dyno. Of the top of my head I would think the G-force would be less. Good luck and have fun in the research.
Bill
That is a great question about the power loss through the different transmissions. Unfortunately, I have never done any specific testing based on manual transmission types. It would be too hard to compare the 3 different manual transmissions because I made other changes to the combination.
That being said, I went back through my runs to see what the best numbers were. This is not as easy as you might think. With the 632" motor in this car, I have made 171 DynoJet runs!
At any rate, the best numbers are as follows:
TKO-600 = 933.01 rwhp (May)
G-Force = 929.89 rwhp (March)
Richmond Gear 6-speed = 928.63 (October)
Again, this is a very un-scientific approach here since I had different combinations at the time of each set of runs - not to mention different times of the year.
Steve





For what you're doing..how about a nice simple 2-3 speed Lenco Drive out of a dragster? You can even air shift them. Should be great for dyno testing.
Not sure when I'll make it back up. I was in Denver Mon/Tue/Wed.....Los Angeles today...back to Dallas tomorrow. But I WILL get there...so make sure it's all together!!
See ya,
Jim
I have over 2600 TKOs under my belt and there is one other thing that is universally misunderstood about this transmission among guys who are used to Muncies. Invariably customers want to shift from second to third in a Z pattern, shoving the shifter up,over and up. The TKO has a VERY narrow shift pattern and some pretty heavy centering springs, especially in shifters from companies like ours who sell kits.
With the TKO, the fasted shifts will be by simply placing your open hand on the ball and pushing forward, letting the centering springs do the work. When I demonstrate this live to frustrated customers at shows they almost always call or e-mail to tell me that with a little practice the shifting is markedly improved.
I agree that the Muncie is a quicker shifter under load, but the TKO can be very livable given the proper treatment and the polished lugs. Hope this helps!
The Best of Corvette for Corvette Enthusiasts
For what you're doing..how about a nice simple 2-3 speed Lenco Drive out of a dragster? You can even air shift them. Should be great for dyno testing.
Not sure when I'll make it back up. I was in Denver Mon/Tue/Wed.....Los Angeles today...back to Dallas tomorrow. But I WILL get there...so make sure it's all together!!
See ya,
Jim
Does Karen ever get to see you anymore? What am I saying, maybe she likes it this way.

Steve
I have over 2600 TKOs under my belt and there is one other thing that is universally misunderstood about this transmission among guys who are used to Muncies. Invariably customers want to shift from second to third in a Z pattern, shoving the shifter up,over and up. The TKO has a VERY narrow shift pattern and some pretty heavy centering springs, especially in shifters from companies like ours who sell kits.
With the TKO, the fasted shifts will be by simply placing your open hand on the ball and pushing forward, letting the centering springs do the work. When I demonstrate this live to frustrated customers at shows they almost always call or e-mail to tell me that with a little practice the shifting is markedly improved.
I agree that the Muncie is a quicker shifter under load, but the TKO can be very livable given the proper treatment and the polished lugs. Hope this helps!
Steve
Steve
http://www.extremeautomatics.com/tra...hturbo400.html
http://www.extremeautomatics.com/tra...hturbo400.html
Steve





Awww man...you've now discovered the secret of our 28 year marriage!! Don't tell anyone!
Make a choice......I still want to go riding when I make it up there!! I mean...I never got to ride in the Ford GT! I feel deprived!
JIM
Awww man...you've now discovered the secret of our 28 year marriage!! Don't tell anyone!
Make a choice......I still want to go riding when I make it up there!! I mean...I never got to ride in the Ford GT! I feel deprived!
JIM
BTW, just made another few runs yesterday. 935 rwhp! That motor just keeps on going....
Steve


Supposedly you want the transmission with the high nickel gears.
You might even be able to find a good iron case from the early years and a good set of the 9310(?) later gears and really get crazy with it.
Just a thought.
I personally like the 2.64, 1.75, 1.33, 1 ratios much better than the wide ratio muncies and the close ratio muncies are just to tall for me.
Last edited by Guru_4_hire; Nov 23, 2008 at 06:03 PM.





And you couldn't find anything easier to drive than a Lenco!
It's a Ford..but check out the in car videos of this bad boy!
http://videos.streetfire.net/video/W...ord_166416.htm
JIM








