Stock Auto Trans Rule Change History ?

[Angelo DiTocco]

Another way to ask it may be: How much quicker is the best currently available 200 trans vs the best currently available 350 trans in, let's say, a popular sbc Stocker combo ?

Thanks to those who have the time & will relate their experience in this area ![/QUOTE]

Hi
The short answer is - pretty darn close..... the difference ends up coming down to the combination of first and second gear ratios that work best for you.... the (high end) 350's have a few more of these combos available than the 200 does... The other factor is, of course, how much experimenting you are willing or able to do.

[Mark Yacavone]

Originally Posted by Angelo DiTocco

Another way to ask it may be: How much quicker is the best currently available 200 trans vs the best currently available 350 trans in, let's say, a popular sbc Stocker combo ?

Thanks to those who have the time & will relate their experience in this area !

Hi
The short answer is - pretty darn close..... the difference ends up coming down to the combination of first and second gear ratios that work best for you.... the (high end) 350's have a few more of these combos available than the 200 does... The other factor is, of course, how much experimenting you are willing or able to do.

I don't remember the exact year but it was in the last decade.
S/S was first, then Stock, then 4 speed stick shifts. (oh yeah, then clutchless in S/S)
The 3 speed deal wasn't put in to benefit the little guy with a 67 Camaro..Trust me.

I would say that if you took a 350 and put in a 2.75 low , an aluminum direct drum, and were really good with a lathe, you could come pretty close to an entry level 200 like I build.
The Pro Trans and the Coan are in a different league. As Ange said, lots of different ratios available too.

[oldskool]

" I don't remember the exact year but it was in the last decade..."

So, for a popular sbc combo that previously had to run a PG, aprox how much quicker could they run, with a good 3-speed ? Hey, I'm just assuming they ran quicker.

I know that lots of bracket racers run a Glide, for consistency & less traction problems. Just assume that most former PG Stock racers choose to now run a 3-speed. Is this correct ?

[Mark Yacavone]

Originally Posted by oldskool

" I don't remember the exact year but it was in the last decade..."

So, for a popular sbc combo that previously had to run a PG, aprox how much quicker could they run, with a good 3-speed ? Hey, I'm just assuming they ran quicker.

I know that lots of bracket racers run a Glide, for consistency & less traction problems. Just assume that most former PG Stock racers choose to now run a 3-speed. Is this correct ?

How much quicker? Usually some, if you can hook it.

Most PG's are now 200's except for maybe 67 oval port Corvette.

[Gmirza]

The rule change was around 1990. Give or take a year.

[MR DERBY CITY]

Originally Posted by Gmirza

The rule change was around 1990. Give or take a year.

Sorry George, but you are WAY off …..

[Gmirza]

Originally Posted by MR DERBY CITY

Sorry George, but you are WAY off …..

I know it was around this time they allowed a 904 in place of a 727 behind a 340. Any corporate transmission that could bolt directly to the engine was allowed.

[oldskool]

Originally Posted by Gmirza

The rule change was around 1990. Give or take a year.

Just curious, were most PG users quick to change over ?

Or, were there a lot who wanted to stay with their PG ?

Were there some of the heavy hitters that did a lot of testing, before switching over ?

It just seems like this was one of those major Stock rule changes, & since I was not involved, I wonder how big of a deal it really was, for the PG racers, back when it happened.

[Mark Yacavone]

Originally Posted by oldskool

Just curious, were most PG users quick to change over ?

Or, were there a lot who wanted to stay with their PG ?

Were there some of the heavy hitters that did a lot of testing, before switching over ?

It just seems like this was one of those major Stock rule changes, & since I was not involved, I wonder how big of a deal it really was, for the PG racers, back when it happened.

You can bet your azz the guys with 67-8 327 /275 Camaros were quick to change over.
The three speed 350 LT 1 cars started at 275 also...They are now 340 something...
The 327s are at 270!

[Henrys Toy]

Originally Posted by oldskool

Just curious, were most PG users quick to change over ?

Or, were there a lot who wanted to stay with their PG ?

Were there some of the heavy hitters that did a lot of testing, before switching over ?

It just seems like this was one of those major Stock rule changes, & since I was not involved, I wonder how big of a deal it really was, for the PG racers, back when it happened.

Good afternoon,
I think I might have been the last hold out in H/SA. I took the Glide out this year at Numidia after I lost at the points race. I installed my McClay 200 and Munsinger converter. This was by no means a back to back test. The car was geared for the three speed from the beginning of the year. The car went from 1.54 to 1.56 60 ft.'s to 1.44 to 1.46 60 ft.'s . In all honesty the car probably picked up a tenth. I can tell you from sitting in the drivers seat racing against another H car with the three speed, they would pull out on me and once I got going they didn't drive away from me. They were at least a half to almost a car length on me in 60 feet.
I thought I could over come the deficit with torque but that never materialized. My car hooks very well with both transmissions , it is certainly easier to race with the Glide. I did so for almost 40 years. So as you might imagine, it takes a little getting used to the launch of the three speed. Plus getting used to the new shifter, but we've made improvements.
The converter and transmission testing and "red" T- Shirts will be starting over again next season. I don't know if this answers your question, but let me know if I didn't get you what you were looking for.

Respectfully,
Henry Kunz 1534 H/SA