OLD Modified Corvettes

tj310 · 12-06-2013, 10:18 AM

63 coupe >Martinez and Barth >? Blevins > ?Toronto 78 ish. I think I know where the car is now but not sure of the lineage. ---Trevor

vette1 · 12-06-2013, 11:24 AM

I have been E-Mailing NHRA to think about add Modified back into there classes..Tons of fans , cars , clubs and interest in this class.

randy wilson · 12-06-2013, 12:00 PM

Brodix spec head is the answer. No one's going to watch a sealed crate motor class. And the answer is let Brodix make the call on legality. Takes all cutting, and pasting out of the equation. Works in roundy-round. And lets all compete. They already have mopar, ford, and chevy heads. Limit it to a single disc clutch, no computers, no vac, internal pump only, cast intake, no external mods, etc. Heads may be angle milled, and combustion chamber polishing only. Saves pulling the head. Makes tear downs easier. Also, make everyone actually clutch, and shift their transmission.

Dick Butler · 12-06-2013, 01:48 PM

Guys I want it as SIMPLE and inexpensive as possible if it were done. Bordix heads okay here but expense? No sheet metal intakes. Need to think Auto trans also to appeal to more RACERS first then spectators will have a bigger show early in development.
Pre 80s good too. Chevy II, Camaro, Mustang, Dart etc. early vettes.. No aluminum cars.
I still think trying to NOT label these as Crate motors helps acceptance. Mod Motors has a better ring to it.
Anyone going to PRI?

randy wilson · 12-06-2013, 02:14 PM

Dick has some very good ideas. MUST keep it simple, affordable, and popular. Just an idea, but here goes. 72, and older, min. wt. 3,000, A,B,C, econo mod, A,B,C, econo altered, min. wt, 1,500lb A,B,C, econo gas, min. wt. 2300lb. A,B,C, econo FC, min. wt. 2,000lb. A,B,C. econo dragster. min. wt. 1,400lb. No break-out. 1\8th .10 per 1\2 lb. per cube, 1\4 mile,1.5 tenths per 1\2 lb. per cube. No carbon fiber, or titanium parts except drive shaft for safety issues. No wheelie bars. 12.5 spec slick. Stock cam size journal, and location, stock size lifter, stock deck ht. 750 cfm for engines 300 c.i. and under. 850 for 301 to 339, 950 for 340 to 383. No belt drives. Stud mounted rockers only except mopar. (Imagine what cam co. would do with that.) .700 lift at the valve max. A whole new eliminator that LOCAL tracks could afford to promote.

randy wilson · 12-06-2013, 02:18 PM

Thanks Mike. Just as a thought. Our cobalt went 6.29, at 109.67 at 10.5lbs. That was our first year, and clutching every gear, with a single 10" rag. That computes to about a 9.89.Interesting to say the least. Buddy's dragster first couple weekends went 5.41. Capable of low 20's.

Dick Butler · 12-06-2013, 02:42 PM

Randy we are all on the same page but I think limited numbers of classes to FORCE everyone to compete together not hide in another class. Three wt breaks good enough. Only Econo Mod... 750 carb, Brodix heads for all, same cubic inchs only car size or wt to separate them. Then the motors are all standard. Again Too many variables it becomes NHRA Flea circus again . One car for every class, ten cars for NONE.
Get it started with three classes and become a "THING" for tracks, events, THEN discuss needs for expansion. Remember we were talking about Mod class. No dragsters, No FC etc....
For chevy there is GM sealed motor, is there a Ford or Chrysler sealed program for the round track guys?

ss wannabee · 12-10-2013, 10:07 AM

Quote:

Originally Posted by Dick Butler

Guys I want it as SIMPLE and inexpensive as possible if it were done. Bordix heads okay here but expense? No sheet metal intakes. Need to think Auto trans also to appeal to more RACERS first then spectators will have a bigger show early in development.
Pre 80s good too. Chevy II, Camaro, Mustang, Dart etc. early vettes.. No aluminum cars.
I still think trying to NOT label these as Crate motors helps acceptance. Mod Motors has a better ring to it.
Anyone going to PRI?

What happened to K.I.S.S.? Note the first sentence in this quote...
Think 1-CLASS...1-CARB....and stick-ONLY...is a good way to start...You already got
TONS of auto trannys out there...Nothing against 2x4 set-ups...but single is SIMPLE...

Give the class a chance to run and feel it out....I know we've been here before...it'll
feel a LOT like 1975-ish A/SM class....weight breaks came later....RIGHT??

Think the "stick" approach will make this way a bit unique or "different"...Having auto]
trans will make it seem like SS or Stk...at least to the casual spectator...IMHO...

btw...I'm NOT a player in all this...don't have a car or motor....but WOULD like to see
it HAPPEN....

Just sayin......

randy wilson · 12-10-2013, 10:29 AM

I have ideas to make it real simple, real affordable, and really easy to police. And also, real entertaining, and real competitive. But, these are just my ideas, and don't expect everyone to agree.

Mike Taylor 3601 · 12-06-2013, 02:08 PM

I think Randy is on to something,is that the rules you used when you ran the heads up class at your track? I see spec head as only way to run all brands together evenly.

I'll add transmission limit to 4 speed,cause 4 speed versions are less $ than 5's or could allow w/ use of 4 gears though, automatic rule I say prohibitted,LOL if allow auto run same as stick no weight break,maybe give weight break to stick so encourages stick shift use, as far as $'s go clutch shift stick setup single disc,bell,shifter, cost about same or less than auto setup trans,converter,shifter.
Reliability or cost of stick is no longer a problem.

I have friend telling me about NMRA NMCA coyote stock class, uses sealed Ford Racing Coyote crate engines,DOHC 32V 5.0 and sealed computer,cost
$ 6,000.00,10X26 tire rule bolt on suspension front and rear,no wheelie bars think is stick only.
Said they are running 10.30-10.60 range,high winding,I heard 9K ish good show.
Mike Taylor 3601

12-06-2013, 10:18 AM	#1
tj310 Member Join Date: Sep 2009 Location: Dresden On. Canada Posts: 460 Likes: 0 Liked 0 Times in 0 Posts	Re: OLD Modified Corvettes 63 coupe >Martinez and Barth >? Blevins > ?Toronto 78 ish. I think I know where the car is now but not sure of the lineage. ---Trevor

12-06-2013, 11:24 AM	#2
vette1 Junior Member Join Date: Jan 2013 Location: Richwood WV Posts: 68 Likes: 0 Liked 5 Times in 5 Posts	Re: OLD Modified Corvettes I have been E-Mailing NHRA to think about add Modified back into there classes..Tons of fans , cars , clubs and interest in this class.

12-06-2013, 12:00 PM	#3
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: OLD Modified Corvettes Brodix spec head is the answer. No one's going to watch a sealed crate motor class. And the answer is let Brodix make the call on legality. Takes all cutting, and pasting out of the equation. Works in roundy-round. And lets all compete. They already have mopar, ford, and chevy heads. Limit it to a single disc clutch, no computers, no vac, internal pump only, cast intake, no external mods, etc. Heads may be angle milled, and combustion chamber polishing only. Saves pulling the head. Makes tear downs easier. Also, make everyone actually clutch, and shift their transmission. __________________ don,t have one

12-06-2013, 01:48 PM	#4
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: OLD Modified Corvettes Guys I want it as SIMPLE and inexpensive as possible if it were done. Bordix heads okay here but expense? No sheet metal intakes. Need to think Auto trans also to appeal to more RACERS first then spectators will have a bigger show early in development. Pre 80s good too. Chevy II, Camaro, Mustang, Dart etc. early vettes.. No aluminum cars. I still think trying to NOT label these as Crate motors helps acceptance. Mod Motors has a better ring to it. Anyone going to PRI?

12-06-2013, 02:14 PM	#5
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: OLD Modified Corvettes Dick has some very good ideas. MUST keep it simple, affordable, and popular. Just an idea, but here goes. 72, and older, min. wt. 3,000, A,B,C, econo mod, A,B,C, econo altered, min. wt, 1,500lb A,B,C, econo gas, min. wt. 2300lb. A,B,C, econo FC, min. wt. 2,000lb. A,B,C. econo dragster. min. wt. 1,400lb. No break-out. 1\8th .10 per 1\2 lb. per cube, 1\4 mile,1.5 tenths per 1\2 lb. per cube. No carbon fiber, or titanium parts except drive shaft for safety issues. No wheelie bars. 12.5 spec slick. Stock cam size journal, and location, stock size lifter, stock deck ht. 750 cfm for engines 300 c.i. and under. 850 for 301 to 339, 950 for 340 to 383. No belt drives. Stud mounted rockers only except mopar. (Imagine what cam co. would do with that.) .700 lift at the valve max. A whole new eliminator that LOCAL tracks could afford to promote. __________________ don,t have one

12-06-2013, 02:18 PM	#6
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: OLD Modified Corvettes Thanks Mike. Just as a thought. Our cobalt went 6.29, at 109.67 at 10.5lbs. That was our first year, and clutching every gear, with a single 10" rag. That computes to about a 9.89.Interesting to say the least. Buddy's dragster first couple weekends went 5.41. Capable of low 20's. __________________ don,t have one

12-06-2013, 02:42 PM	#7
Dick Butler VIP Member Join Date: Oct 2002 Location: Richmond Indiana Posts: 1,196 Likes: 5 Liked 32 Times in 19 Posts	Re: OLD Modified Corvettes Randy we are all on the same page but I think limited numbers of classes to FORCE everyone to compete together not hide in another class. Three wt breaks good enough. Only Econo Mod... 750 carb, Brodix heads for all, same cubic inchs only car size or wt to separate them. Then the motors are all standard. Again Too many variables it becomes NHRA Flea circus again . One car for every class, ten cars for NONE. Get it started with three classes and become a "THING" for tracks, events, THEN discuss needs for expansion. Remember we were talking about Mod class. No dragsters, No FC etc.... For chevy there is GM sealed motor, is there a Ford or Chrysler sealed program for the round track guys? Last edited by Dick Butler; 12-06-2013 at 02:44 PM.

12-10-2013, 10:29 AM	#9
randy wilson Senior Member Join Date: Jan 2007 Location: N/A Posts: 882 Likes: 0 Liked 22 Times in 22 Posts	Re: OLD Modified Corvettes I have ideas to make it real simple, real affordable, and really easy to police. And also, real entertaining, and real competitive. But, these are just my ideas, and don't expect everyone to agree. __________________ don,t have one

12-06-2013, 02:08 PM	#10
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,372 Likes: 354 Liked 307 Times in 103 Posts	Re: OLD Modified Corvettes I think Randy is on to something,is that the rules you used when you ran the heads up class at your track? I see spec head as only way to run all brands together evenly. I'll add transmission limit to 4 speed,cause 4 speed versions are less $ than 5's or could allow w/ use of 4 gears though, automatic rule I say prohibitted,LOL if allow auto run same as stick no weight break,maybe give weight break to stick so encourages stick shift use, as far as $'s go clutch shift stick setup single disc,bell,shifter, cost about same or less than auto setup trans,converter,shifter. Reliability or cost of stick is no longer a problem. I have friend telling me about NMRA NMCA coyote stock class, uses sealed Ford Racing Coyote crate engines,DOHC 32V 5.0 and sealed computer,cost $ 6,000.00,10X26 tire rule bolt on suspension front and rear,no wheelie bars think is stick only. Said they are running 10.30-10.60 range,high winding,I heard 9K ish good show. Mike Taylor 3601