mdyearmike

I asked this earlier. Will the 700 fit a C1 trans tunnel without mods?

AZDoug

As far as i know it will, but i haven't personally done one, yet.

Ask the people at BTO, they have Corvette shifters and C1 , 700-4R crossmembers.

Doug

mdyearmike

Thanks. I put a 700 in a 67 and it fit fine but I haven't tried a C1 yet.

Randy G.

Hey Doug. Just realized what you said. I said "69" but meant to say "60" as in 1960 Corvette. 400 turbo was not going to fit without sawing up the tunnel.

Randy G.

I just ordered the whole 9 yards from Bowtie Overdrives. They recommend a 700R4, 2,200 stall lock-up converter, they sell the trans mount, driveshaft yoke (or the whole driveshaft), gauge for setting the throttle position cable, shifter that bolts on the back of the trans, everything.

AZDoug

That makes it pretty easy.

Let me know what you think about the conversion.

I put a 200 4r in my '37 Ford pickup, with the get-rid-of-the-computer rewire inside the trans.

I like it a lot. i had to dick with the vacuum switch that controls the OD downshift/upshift somewhat. I got an adjustable one and by tweaking it, the trans doesn't "hunt" between 3 and OD.

I assume the 700 is the same. I need to get rid of the Richmond 5 speed in my '61, it slows the car down too much with its glacial shifting, and have been looking at a 700 with lockup converter.

Doug

Randy G.

I will. They are very adamant about a proper cooling system and proper settings for the throttle position cable. They say set right the trans will last forever. They prefer the Dewitts radiator with built in tranny cooling, but I just bought a new restoration radiator from them. Unless I could sell my almost $900 restoration radiator pretty right I'll go with a finned aluminum cooler which they feel is actually inferior. Anyone want a just about brand new 1962 restoration radiator with the Harrison tag for their manual tranny car?

Here it is...

AZDoug

I would use a separate trans cooler, also. I have noodled where in the heck to put the thing.

I am not a big fan of sticking it directly in front of the radiator, and decided that mounting it horizontally, where the panel that connects the lower front valance to the bottom of the radiator support would probably work, if you get the right shape cooler.

Sort of like where the trans cooler is mounted on the new C7 corvettes.

I would also be tempted to put a temp gauge inline with the fluid out of the trans to the cooler, to keep an eye on it to see if any additional cooling mods need to be done.

Doug

Randy G.

Rich at BTO says the overdrives generate more heat than 350 or 400 turbos and need a good cooling system. He recommended a fan type cooler if all else fails. I know people using the tubular finned heat sink style dual pass coolers claiming they work very well but none of them have a trans fluid temp gauges on them. BTO does not recommend them.

AZDoug

This is what i had in mind.

I realize this is a chinese company, but it depicts the long, narrow heat exchanger I was thinking of. Not those heat sink things.

http://www.aircompressorheatexchange...ompressor.html

I always assumed a lockup trans would generate LESS heat than TH400 since the converter isn't continually beating fluid around, generating heat



Doug

GTOguy

AZDoug is correct. Overdrive trannies tend to generate a lot less heat than regular auto trannies, because at lock-up, there is zero slippage. Regular auto transmissions gain about 300 rpm at cruise just due to slippage. That said, if driven in the mountains and left in overdrive, an od trans can heat up due to hunting. I personally feel you'll be ok with an auxiliary cooler. Your car weighs a lot less than a pickup truck pulling a trailer, which these trannies were used in originally.

Randy G.

But, the guy that builds and sells them at BTO says the opposite about overheating and I asked him to clarify in case I misunderstood. And most (98%) of my driving won't be in lock up.

I agree with what you are saying about car weight and the fact that I'm not pulling a 20,000 pound race car trailer. I told him that GM never put a cooler on it with a powerglide for that very reason. I'm going to hang a trans temp gauge in the car just to see what it reads, but I'm not going to mount one. Once I see a trend, and if it's good, out comes the gauge.

narlee

Kind of spendy but it looks like it take the guesswork out of the TV cable.

https://bowlertransmissions.com/p/64...ion-arm-system

wesbright

I asked this same question on the Forum about which auto trannie i could install in my 60 without chopping up the tunnel, got 1 reply, a 200R4. Man i am glad i came back looking, i was fixing to order one for $1,800 from a builder in Jacksonville. So i will now be calling Bowtie Overdrives to get the real scoop. I suppose it wont matter that i am going with the 6.2L, LS3 right?

Thanks for the help,

Wes B.

Zoomin

Wes, that changes the equation quite a bit. I would recommend a 4L60E, which is electronically controlled by the computer, rather than cable controlled by throttle position as the 200R4 is. You're also going to want to specify at least a 2500 stall convertor too.

Randy G.

You should call Rich at Bow Tie Overdrives with HP figures and he will make a recommendation. I bought everything from them and didn't have to drill one hole in the car anywhere. Everything bolts in including their crossmember. I bought an SFI approved torque converter and ARP bolts to install it. 168 tooth flywheel with a standard NAPA high torque truck starter spins it over very well. I had to use a .015 shim.

The 700R4 fits fine, just a little snug here and there. I love driving it with the low gear the 700R4 has, and all I'm using is a 10" x 10" Hayden tranny cooler and it stays about 125-130 on a temporary gauge in the worse conditions. I taped the gauge to the bottom of the dash, but once I'm satisfied it's not going to give me any problems I'm removing the gauge.

I'm a little **** so instead of running rubber tranny cooler lines I got some tubing from NAPA that can be bent by hand without kinking and ran it as far as I could with short rubber sections up front to connect to the cooler in front of the radiator. I had just bought a Dewitt's restoration radiator and it came without tranny cooler provisions.

Here's a pic of my lines near the starter.




Here's the whole package from Bow Tie Overdrives. Includes lock-up 2,200 stall converter, driveshaft with u-joints and front yoke, TV cable and carb adapter, rear mounts and rubber insulator, dip stick, bracket and linkage in order to use the original Corvette powerglide shifter, lower converter/flywheel shield, and pressure gauge with fittings. The pressure gauge is installed temporarily just to verify transmission pump pressures at start up. Including CA 8% sales tax it was around $2,900. I picked it up rather than having it shipped. Installed it myself.

mdyearmike

I agree with Randy. Rich will set you up with a complete package. Just put mine in this week.

1COOL60

Lookin' good, Mike. You'll need to start a thread describing your build one of these days.
160

cbernhardt

I have a 4L80E in my '59, but since I do not have a stock frame I can't comment on the fitment in your car. I used a 4 pass aftermarket cooler and attached 3 large computer fans on top (insert in picture below). The cooler is mounted on the passenger side frame rail. The brass fitting on the filter adapter is for a temperature probe.
Charles