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Old 07-05-2016, 02:49 PM   #1
pauldilcher
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

It was a Firebird .
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Old 07-05-2016, 03:47 PM   #2
DeuceCoupe
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

Quote:
Originally Posted by pauldilcher View Post
It was a Firebird .

Thanks!!
Google just needed that one extra word:


http://www.hotrod.com/cars/featured/...tiac-firebird/


Gary Moore of "Acre Maker" cars:
71 Firebird 455ho/335hp
12.22-114.06 h/s



Ok let me push my luck a little, here is another mystery car:
65 Winternationals
Corky Schroeder
"Pontiac" (no year / model / engine)
14.23 at 98.57 E/SA


Any ideas??
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Old 07-07-2016, 11:12 AM   #3
Terry Witzel
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

Found this entry list for the 1965 Winternationals, but just lists entry as a 1960 Pontiac. Number 760.
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Old 07-07-2016, 11:52 AM   #4
Terry Witzel
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

Here's an 'Acre Maker' '61 Pontiac.

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Old 07-07-2016, 04:40 PM   #5
Ed Wright
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

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Originally Posted by Terry Witzel View Post
Here's an 'Acre Maker' '61 Pontiac.

Gary Moore, Tulia Texas. Great guy, Gary and Ann still race. He had that '61 Ventura when we met them, I was driving a stock one like that (color and all) to work & back at that time.
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Old 07-07-2016, 08:22 PM   #6
DeuceCoupe
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Talking Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

Quote:
Originally Posted by Terry Witzel View Post
Found this entry list for the 1965 Winternationals, but just lists entry as a 1960 Pontiac. Number 760.

Thanks Terry even that hint helps. Only 2 cars really fit, assuming there was no factoring yet:
60 Cat 9P wagon, 4360/363hp=12.01
or
60 Ventura HT, 3966/333hp=11.90 right on E/SA
So I guessed the Ventura, with prepped engine & trans, down at shipping weight, 1st try in the Gonkulator said
13.91 at 98.72
Closer than usual for a 1st guess!
I just cut down the traction G's a bit, that's all it took for
2.27
9.21 at 78.4
14.21 at 98.58
One of the fun things about re-visiting the vintage NHRA stuff with the Gonkulator is I can see about what 60ft time they must have run to jive with the rest of the combo and et/mph. 2.27 seems slow, but my daily driver cars Gonkulate to more than a 2.40 short time back in the 1970s based on the few vague scribbled timeslips I got back then. Sometimes only the ET was scribbled on the timeslip, not even the MPH! Tires were awful back then.
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Old 07-08-2016, 11:04 AM   #7
ss wannabee
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

I wonder when NHRA "pulled" the 4-spds out of the '57 Pass Cars...what most of the
owners did...and how much slower was the car with either a 3-spd stick...or the PG?
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Old 07-08-2016, 02:16 PM   #8
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

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Originally Posted by ss wannabee View Post
I wonder when NHRA "pulled" the 4-spds out of the '57 Pass Cars...what most of the
owners did...and how much slower was the car with either a 3-spd stick...or the PG?


From what I have learned from this thread, the HAMB Junior Stock thread, and Boyce's Junior Stock book, a lot of stuff was legal in 1969 but not in 1970:
* Chev Sedan Deliveries:
* Hydramatic ok in 1969
* Had to run iron PG in 1970
From the data I have, it looks like folks lost a couple tenths at first, but as the 4000-stall converters caught on the difference almost disappeared. The Gonkulator runs I am computing show about the same.


* Chev 57-58
* 4spd ok in 1969
* Had to run 3spd in 1970
* Again, maybe a couple tenths was lost though data is sketchy, I don't have any direct before & after.
* The Gonkulator calculates that most of the loss was in the shifter - the 3-on-the-tree was a LOT slower, but even on the floor, the 1-2 shift is fast on a 4spd but slow on a 3spd (unless you get clever with the shifter as some did).
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Old 07-09-2016, 07:38 PM   #9
ss wannabee
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

Quote:
Originally Posted by ss wannabee View Post
I wonder when NHRA "pulled" the 4-spds out of the '57 Pass Cars...what most of the
owners did...and how much slower was the car with either a 3-spd stick...or the PG?
I vaguely remember the rules change mentioned in the "Strickly for Stocks" column
in Hot Rod Magazine....also recall a Delivery racer with "NHRA hates Sedan
Deliveries" lettered on his car....
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Old 07-09-2016, 08:40 PM   #10
Rich Biebel
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Default Re: Lookin for NHRA Stock Class ET/MPH from 1970-71

How many times has NHRA made stupid decisions that cost racers a lot of money and time or worse. The answer is a lot ! Just abitrarily make rules or do away with entire categories. Everytime they did this they lost racers. This goes all the way back to the 1960's. Look where they are now....
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