Pro-trans VS McClay metric
 

Im looking to buying a new Trans for the up coming season, but i cant decide which way i should go, and on top of that im having a hard time figuring out which ratio would be best for a BBC. im looking at going either with a pro-trans or a metric. what are your thoughts on either of these transmissions, and what would be the ratio suited for a BBC.

Re: Pro-trans VS McClay metric
 

We run Pro Trans in ALL our race cars.....It made a dramatic difference
in our performance!

Dave is happy to help figure out the optimum ratios for our varied
combos. Only a segment of potential possibilities he can build are
optimal........Too complicated for my elderly mind.

Pro Trans made a significant difference.....
Now qualify top 16 rather than towards the middle of the pack with our old junk.

I do not know what brand or which eliminator you are running......But if the Smiths build
it: It will work RIGHT.

Re: Pro-trans VS McClay metric
 

Which trans did you use before and who did them?

Re: Pro-trans VS McClay metric
 

I'm running a 70 nova in B/SA. I have been running TH400 for the last 9 years and it works great, I have never had any issues with it, at this point i would like to try my luck with something a little more light weight and trick. I would also like to play with ratios, but I'm unsure witch way to go with that. Pro trans is on my radar for sure! If you don't mind me asking how many runs are you getting out of your pro trans?

Re: Pro-trans VS McClay metric
 

You are in Div. 1, simply call Jack Sepanek. He works with Pro Trans, and is much closer for rebuilds. You won't be dissapointed.

Re: Pro-trans VS McClay metric
 

I second Matt’s post!!! Call Jackie!!!!

Re: Pro-trans VS McClay metric
 

I've got a McClay out of my B/SA 70 Camaro for sale, if your interested email me at tklynch@hotmail.com. Thanks, Keith

Re: Pro-trans VS McClay metric
 

I do not want to name names......It was a major trans builder and we utilized the Alum Drums and Straight cut gears from Protrans in our transmissions ...........trying to save a couple bucks.

I will not poor mouth anyone.........They held up well and the transmissions worked great just not the same performance as Dave Smith builds by a Tenth!

Dave has been doing this for 40 plus years that I remember.

You buy the BEST........You only cry ONCE!

Re: Pro-trans VS McClay metric
 

I understand, but did you have a 904 ? Chevy stuff is different with t200 and t350 pro trans.

Re: Pro-trans VS McClay metric
 

Call Sepanek you won't be disappointed.

Re: Pro-trans VS McClay metric
 

To add a question into this mix, I have a customer with a McClay 200 he likes to stage at a low rpm, when he hits to trans brake button the car will roll forward. If you bring the RPMs up to 2000 while rolling in to stage it is ok. anybody else fighting this.

Re: Pro-trans VS McClay metric
 

I switched to PRO TRANS and was very satisfied so I bought a second one. Sepanek maintains them, you will never find a more reasonable and trusting guy than Jack. Give him a call, he services and builds all types of transmissions and he would be the best one to give you advise on your question. 570-457-6517

Re: Pro-trans VS McClay metric
 

We run 727 and 904 in our stock or SS stuff/ Glide in No Prep.

Re: Pro-trans VS McClay metric
 

i believe low pump pressure, causes it.

Re: Pro-trans VS McClay metric
 

I had a T350 with a low volume front pump that did that. Had to hold the foot brake, rev it to 2500 to set the trans brake. My Pro Trans does none of that. Sits right where I push the trans brake button. That works better, it's quicker, I can not think of a thing I would change. Maybe the price. LOL. Just kidding. Well worth the price as well.

Re: Pro-trans VS McClay metric
 

Again, all good people mentioned here so far.
Not mentioned is Leo G. (Remac)
Leo has the cojones to run a 200 behind a 428 Pontiac Super Stocker.
Believe me,..that's an endurance test.

Re: Pro-trans VS McClay metric
 

I experienced the "jump" you're talking about with McClay 200s. Called Scott and he confirmed that his trans brake must "fill" before it will hold absolutely tight. Not the greatest feature in the world, but once you get used to clicking the transbrake button right when you light the second yellow and immediately bringing the RPM up to around 2500, you won't experience the condition again. Having said that, I have never heard anyone that said a 200 and a ProTrans are equal in ET (users always say the ProTrans is quicker).

Re: Pro-trans VS McClay metric
 

This was an issue with powerglides when I ran the super classes, what we would do is wire the line loc into the transbrake so that when you engaged the transbrake it would activate the front line loc to stop it from rolling.