CLASS RACER FORUM - View Single Post - Lookin for NHRA Stock Class ET/MPH from 1970-71

DeuceCoupe · 06-23-2016, 11:57 AM

Bill,
thanks for the encouragement!
I never worked on the old Hydramatic, even though we lived only 2 miles from the Hydramatic Plant site - after the fire.

I used to think of it as a useless old obsolete dog of a trans, before I learned more. Now I realize, it was really just cost that drove it to be obsolete. Wiki has what I think is a good writeup:

https://en.wikipedia.org/wiki/Hydramatic

Between Wiki, pgs 59-62, pg 74-75, and pg86 (on the later dump&fill Hydramatic) of Boyce;s Junior Stock, and your comments, I cant add much to the theory or history.

What I can do is Gonkulate the cars, run the numbers, see what made the ET/MPH jive.

Just to be sure, ALL the sedan deliveries had to run the older (pre-1956) Hydramatic, and NOT the newer Super Dump&Fill version, right?

(Wiki jives with this as they say the old Hydramatic continued on til 1962 as the truck/commercial version, while the new dump&fill was big-car only, especially after 1961 when the Roto / SlimJim appeared).

ASIDE / ALL:
Ok I found one ET/MPH for the 429scj, from Larry Davis "Quarter Mile Muscle" (I don't think he is a Ford guy, he gets a lot of stuff mixed up but book looks great) -
12.70 at 109.5mph, E/SA, 70 Cyclone 429scj, c6/auto.

Well at least that's one.
A long way from the LS6 time of
11.49 at 121mph, B/S or C/S, same year. 3634/450=8.08, C/S=8.00 but the text & pic, pg138 Boyce, says B/S. Hmmm. Factored already?

Still NOTHING on the Buick Stage 1 (any year), Chev LS5, Olds 442 non-W30, or Pontiac 455. Any info appreciated, I will keep hunting.

06-23-2016, 11:57 AM	#44
DeuceCoupe Member Join Date: Feb 2016 Posts: 274 Likes: 98 Liked 48 Times in 44 Posts	Re: Lookin for NHRA Stock Class ET/MPH from 1970-71 Bill, thanks for the encouragement! I never worked on the old Hydramatic, even though we lived only 2 miles from the Hydramatic Plant site - after the fire. I used to think of it as a useless old obsolete dog of a trans, before I learned more. Now I realize, it was really just cost that drove it to be obsolete. Wiki has what I think is a good writeup: https://en.wikipedia.org/wiki/Hydramatic Between Wiki, pgs 59-62, pg 74-75, and pg86 (on the later dump&fill Hydramatic) of Boyce;s Junior Stock, and your comments, I cant add much to the theory or history. What I can do is Gonkulate the cars, run the numbers, see what made the ET/MPH jive. Just to be sure, ALL the sedan deliveries had to run the older (pre-1956) Hydramatic, and NOT the newer Super Dump&Fill version, right? (Wiki jives with this as they say the old Hydramatic continued on til 1962 as the truck/commercial version, while the new dump&fill was big-car only, especially after 1961 when the Roto / SlimJim appeared). ASIDE / ALL: Ok I found one ET/MPH for the 429scj, from Larry Davis "Quarter Mile Muscle" (I don't think he is a Ford guy, he gets a lot of stuff mixed up but book looks great) - 12.70 at 109.5mph, E/SA, 70 Cyclone 429scj, c6/auto. Well at least that's one. A long way from the LS6 time of 11.49 at 121mph, B/S or C/S, same year. 3634/450=8.08, C/S=8.00 but the text & pic, pg138 Boyce, says B/S. Hmmm. Factored already? Still NOTHING on the Buick Stage 1 (any year), Chev LS5, Olds 442 non-W30, or Pontiac 455. Any info appreciated, I will keep hunting. Last edited by DeuceCoupe; 06-23-2016 at 12:01 PM.