vabeach56wagon
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Loc: Chesapeake,VA,
Reg: 04-22-02
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10-02-08 01:54 PM - Post#1533846
Does anybody out there have a copy of the NHRA rules creating the Modified Production class. I specifically need the weight breaks.
thanks
Paul
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 Sting Ray
"7th Year" Silver Supporting Member
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Loc: Drag City, California
Reg: 02-19-05
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10-02-08 04:10 PM - Post#1533948
In response to vabeach56wagon
I have the 2008 rulebook but there is no mention of Modified Production, maybe Modified Stock?
Otherwise, the tech director for the Northeast Division is Anthony Romano, 215-343-2558, aromano@nhra.com.
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 Rick_L
Honored Member
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Loc: Katy, Tx, USA
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10-02-08 04:22 PM - Post#1533957
In response to vabeach56wagon
G/MP 13.5 lb/ci
F/MP 12.5
E/MP 11.5
D/MP 10.5
C/MP 9.5
B/MP 8.5
A/MP 7.5
All of the above were V8 classes.
They had a H/MP class for 6's, I don't recall the weight break but it was probably 10.5 or 11.5.
This is what they ran in the mid/late 70s up until they shut it down. But I don't think they ever changed the weight breaks, even if other rules changed (like tires).
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vabeach56wagon
Valued Contributor
Posts: 2977
Loc: Chesapeake,VA,
Reg: 04-22-02
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10-03-08 05:00 AM - Post#1534297
In response to Rick_L
Thank you....my collection of stuff from that era doesn't include any NHRA rule books.
The loss of the MP class led me away from drag racing...
Paul
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Thadd
"11th Year" Gold Supporting Member
Posts: 11069
Age: 73
Loc: Rolling Hills, Ca,
Reg: 12-30-01
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10-03-08 11:06 AM - Post#1534522
In response to vabeach56wagon
Paul...I am on a road trip, but when I get home I will look into my stuff because I might have some older rule books...
If I can find one, I'll send it to you
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chevy210us
Forum Newbie
Posts: 89
Loc: Snohomish, Wa
Reg: 02-24-07
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10-03-08 11:16 AM - Post#1534531
In response to vabeach56wagon
Paul, I miss those classes. Guess a little nostalgic. I ran a '56 sedan delivery in 68-72 in E/MP. Sold the car because of too much carnage. Aah, if only we had some of todays reliability, then. I went looking for my old car a couple years ago. Found it with some stealth from my wife and luck. The same owner that bought it from us, still had it 32 yrs later, now36 yrs. It still had the same paint and name and lettering, and some of the original decals. Same hood scoop, line lock, batt box in back, rear end minus gears. Had different engine, tranny and wheels, seats and put optional bumper guards on. Wish I had it back, maybe later.
Rex
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vabeach56wagon
Valued Contributor
Posts: 2977
Loc: Chesapeake,VA,
Reg: 04-22-02
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10-03-08 01:00 PM - Post#1534593
In response to chevy210us
Believe me I understand...during that same era we ran a C/MP 4 dr BBC tunnel rammed 56 wagon at the tracks within 3 hours of Washington DC...3 hrs cause flat towing was for me a hair-raising experience every time...
The Gob is an attempt to recapture some of that excitement...
Paul
Edited by vabeach56wagon on 10-03-08 01:01 PM. Reason for edit: No reason given.
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vabeach56wagon
Valued Contributor
Posts: 2977
Loc: Chesapeake,VA,
Reg: 04-22-02
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10-03-08 01:01 PM - Post#1534594
In response to Thadd
Thadd: thank you...
Paul
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Jim.Biron
"6th Year" Platinum Supporting Member
Posts: 2288
Age: 62
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Reg: 04-10-08
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04-09-10 04:34 PM - Post#1895757
In response to Rick_L
G/MP 13.5 lb/ci
F/MP 12.5
E/MP 11.5
D/MP 10.5
C/MP 9.5
B/MP 8.5
A/MP 7.5
All of the above were V8 classes.
They had a H/MP class for 6's, I don't recall the weight break but it was probably 10.5 or 11.5.
This is what they ran in the mid/late 70s up until they shut it down. But I don't think they ever changed the weight breaks, even if other rules changed (like tires).
Any chance you might have the weight breaks for 1974 for the gasser calsses? 
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J.B._Hall
Senior Member
Posts: 232
Loc: Central Iowa
Reg: 08-25-02
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04-09-10 08:43 PM - Post#1895891
In response to Jim.Biron
My 1970 rule book has gas class as follows:
A/G 5 to 6.49
B/G 6.5 to 7.99
C/G 8 to 9.49
D/G 9.5 to 10.99
E/G 11.0 to 12.49
F/G 12.5 or more
G through I gas were for flat heads, inline six bangers etc. Modified heads allowed
G/G 6.0 to 7.99
H/G 8.0 to 10.99
I/G 11.0 or more
J/G was for pre 1960 flatheads, 6 bangers etc. wth stock heads
J/G 11 or more
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Rick_L
Honored Member
Posts: 24724
Loc: Katy, Tx, USA
Reg: 07-06-00
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04-10-10 06:00 AM - Post#1896047
In response to J.B._Hall
They added 0.5 lb/ci and started weighing the driver with the car sometime in the 70s.
5.4 A/G
6.5 B/G
7.5 C/G
8.5 D/G
9.5 E/G
10.5 F/G
11.5 G/G
12.5 H/G
This is from memory so I may not have it just right.
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bvaunsson
Forum Newbie
Posts: 1
Reg: 05-23-12
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05-23-12 11:44 AM - Post#2229005
In response to vabeach56wagon
In 1963, NHRA determined Modified Production class by weight to c.i. I ran C/MP in '63 My engine was a 301 c.i. small block. My weight was 3220 lbs.
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