OLD Modified Corvettes

joespanova · 12-18-2013, 09:54 AM

Quote:

Originally Posted by randy wilson

Joe, I respectfully disagree. We already have what you're wanting in comp, and SS.I doubt anything will come of it, but it's still fun to talk about. We had it at our track, and we had the open no break out class at Eddyville. We had 5 times as many cars at a hick track then they drew at one of the nicest facilities in the mid west.

Regardless , either way...if it ever works out , the new / old concept would be great.

Dick Butler · 12-18-2013, 01:26 PM

Anyone sent NHRA an email yet? Opinions are easy and the next step of informing NHRA of an interest in a BASIC SS class which is cheap should be easier. Lets see if they at least respond.

randy wilson · 12-18-2013, 01:29 PM

Dick, I'll do it today if you are OK with what I wrote. Do you have his correct email? I'm not a member of NHRA, Steve Thompson, the driver is.

randy wilson · 12-18-2013, 01:38 PM

Never mind Dick. I got it.

Dick Butler · 12-18-2013, 02:05 PM

Randy I am hoping all the others expressing thoughts will mail as well...

randy wilson · 12-18-2013, 02:27 PM

Just sent it Dick.

randy wilson · 12-18-2013, 05:23 PM

Joe, that was a great article at competition plus. Great article. But the similarities are close, but not the same. They had 4 manufacturers, with 4 totally different cylinder heads. Don't know about American motors, and mopar, but, for instance, I believe the head of choice for GM was the 461X. For Ford, it naturally would be the canted valve Cleveland. I'm a little familiar with both, and the X head flowed around 220 out of the box, and with a great valve job, and what matching was involved, never exceeded 240 cfm. The Cleveland, out of the box would go 285 cfm. I don't know what the mopar 18 degree stuff did. There in lies the problem. Brodix, if anyone cares to look, are as follows. (And I'm close here, not exact.) Chevy, 269 intake, 179 exhaust, Ford, 272 intake, 202 exhaust, Mopar, 270 intake 200 exhaust. That class would still be going today, if they had something like that. Just my opinion. If you let the Chevy use external port plates, 1\2 inch thick, with no internal mods, the exhaust flow goes up to close to 200 cfm.

randy wilson · 12-18-2013, 05:41 PM

Here's the exact flow numbers at .700. Chevy, 269 intake, 182 exhaust, Ford, 270 intake, 202 exhaust, Mopar, 269 intake, 198 exhaust. Gentle men, start your engines!

12-18-2013, 01:26 PM	#2
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 Anyone sent NHRA an email yet? Opinions are easy and the next step of informing NHRA of an interest in a BASIC SS class which is cheap should be easier. Lets see if they at least respond.

12-18-2013, 01:29 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 Dick, I'll do it today if you are OK with what I wrote. Do you have his correct email? I'm not a member of NHRA, Steve Thompson, the driver is. __________________ don,t have one

12-18-2013, 01:38 PM	#4
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 Never mind Dick. I got it. __________________ don,t have one

12-18-2013, 02:05 PM	#5
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 I am hoping all the others expressing thoughts will mail as well...

12-18-2013, 02:27 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 Just sent it Dick. __________________ don,t have one

12-18-2013, 05:23 PM	#7
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 Joe, that was a great article at competition plus. Great article. But the similarities are close, but not the same. They had 4 manufacturers, with 4 totally different cylinder heads. Don't know about American motors, and mopar, but, for instance, I believe the head of choice for GM was the 461X. For Ford, it naturally would be the canted valve Cleveland. I'm a little familiar with both, and the X head flowed around 220 out of the box, and with a great valve job, and what matching was involved, never exceeded 240 cfm. The Cleveland, out of the box would go 285 cfm. I don't know what the mopar 18 degree stuff did. There in lies the problem. Brodix, if anyone cares to look, are as follows. (And I'm close here, not exact.) Chevy, 269 intake, 179 exhaust, Ford, 272 intake, 202 exhaust, Mopar, 270 intake 200 exhaust. That class would still be going today, if they had something like that. Just my opinion. If you let the Chevy use external port plates, 1\2 inch thick, with no internal mods, the exhaust flow goes up to close to 200 cfm. __________________ don,t have one Last edited by randy wilson; 12-18-2013 at 05:27 PM.

12-18-2013, 05:41 PM	#8
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 Here's the exact flow numbers at .700. Chevy, 269 intake, 182 exhaust, Ford, 270 intake, 202 exhaust, Mopar, 269 intake, 198 exhaust. Gentle men, start your engines! __________________ don,t have one