Re: ALI VS IRON Block
[Re: MattW]
#2467004
03/15/18 06:12 PM
03/15/18 06:12 PM
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Joined: Dec 2005
Posts: 11,705 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,705
Fulton County, PA
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These cars are still Stockers and have to meet the rules as far as allowed replacement parts, at least for NHRA. I haven't looked for accepted blocks for these cars, and I haven't looked at the NMCA rules so I don't know if they are allowed anything different.
If the results don't match the theory, change the theory.
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Re: ALI VS IRON Block
[Re: MattW]
#2467018
03/15/18 06:42 PM
03/15/18 06:42 PM
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Joined: Jan 2003
Posts: 19,384 Las Vegas
Al_Alguire
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The NMCA uses NHRA rules for Stock/SS and shootout cars. Which is why Holley recognizes this as the first 7 second run by a shootout car. AS for the aluminum block I am sure it is all about the weight. They do have minimum weights but being able to put that weight were it is needed or will work best is likely the reasoning. Car was built by MR2 and I'm sure that's the thinking. The Air was KILLER when they made that run, like unheard of for Florida. Water grains below 20 the barometer was 30.+ and the DA was in the 500' area. Before the rains came Saturday
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: ALI VS IRON Block
[Re: MattW]
#2467037
03/15/18 07:46 PM
03/15/18 07:46 PM
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Joined: Jan 2003
Posts: 10,019 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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A friend, Chuck Lofgren, runs a 6.1 drag pak car and said the aluminum block makes a bunch more power. No doubt though the front end wieght change didn't hurt! He complained about huge wheel stands. Haven't seen the car run since the change though.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: ALI VS IRON Block
[Re: MattW]
#2467046
03/15/18 08:02 PM
03/15/18 08:02 PM
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Joined: Dec 2005
Posts: 11,705 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,705
Fulton County, PA
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The air was crazy good. They were fast at Gainesville as well. I do see now where NHRA allowed the aluminum block to replace the iron block. I can't keep up.
If the results don't match the theory, change the theory.
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Re: ALI VS IRON Block
[Re: MattW]
#2467149
03/15/18 11:58 PM
03/15/18 11:58 PM
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Joined: Dec 2005
Posts: 11,705 Fulton County, PA
CMcAllister
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Mr. Helpful
Joined: Dec 2005
Posts: 11,705
Fulton County, PA
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Actually I read a story that said Mopar made the aluminum block a replacement part, accepted by NHRA, because all the iron blocks were only available as a long block assembly.
If the results don't match the theory, change the theory.
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Re: ALI VS IRON Block
[Re: MattW]
#2467185
03/16/18 01:30 AM
03/16/18 01:30 AM
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Joined: Jan 2003
Posts: 20,212 Park Forest, IL
slantzilla
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Park Forest, IL
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They are package cars anyway. Ma Mopar (and the others) can pretty much get away with anything they want.
"Everybody funny, now you funny too."
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Re: ALI VS IRON Block
[Re: sgcuda]
#2467256
03/16/18 11:03 AM
03/16/18 11:03 AM
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Joined: Feb 2003
Posts: 1,942 Metro Detroit
OUTLAWD
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top fuel
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Metro Detroit
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Maybe because Chevrolet engines are aluminum blocks. They may have had to make some considerations for Mopar. It's about time! Chevy blocks are iron...
Faster, Faster until the thrill of speed overcomes the fear of death...
71 Swinger - slowly collecting dust/parts 66 Belv. II - just a streetcar 88 Mustang - turbo LS beater
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Re: ALI VS IRON Block
[Re: OUTLAWD]
#2467258
03/16/18 11:10 AM
03/16/18 11:10 AM
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Joined: Feb 2005
Posts: 20,201 PA.
pittsburghracer
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"Little"John
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PA.
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Well Mopar should get a handicap because most of the guys on Moparts continue to argue that a cast iron block will produce so much more horsepower than an aluminum block will. Lol. Welcome to modern times guys.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: ALI VS IRON Block
[Re: CMcAllister]
#2467267
03/16/18 11:34 AM
03/16/18 11:34 AM
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Joined: Jan 2003
Posts: 10,019 Frostbitefalls MN (Rocky&Bullw...
gregsdart
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Actually I read a story that said Mopar made the aluminum block a replacement part, accepted by NHRA, because all the iron blocks were only available as a long block assembly. Much more likely it was as much or more ring seal as anything. If i recall correctly, Chuck said he picked up two tenths plus from that alone.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: ALI VS IRON Block
[Re: pittsburghracer]
#2467280
03/16/18 12:17 PM
03/16/18 12:17 PM
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Joined: Jun 2005
Posts: 2,776 Ontario Canada
MattW
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Well Mopar should get a handicap because most of the guys on Moparts continue to argue that a cast iron block will produce so much more horsepower than an aluminum block will. Lol. Welcome to modern times guys. At that level you need ALL your ducks in a row!! It's like top fuel, all have the power but it's who can put it to the ground. Matt
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Re: ALI VS IRON Block
[Re: gregsdart]
#2467281
03/16/18 12:18 PM
03/16/18 12:18 PM
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Joined: Jun 2005
Posts: 2,776 Ontario Canada
MattW
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Actually I read a story that said Mopar made the aluminum block a replacement part, accepted by NHRA, because all the iron blocks were only available as a long block assembly. Much more likely it was as much or more ring seal as anything. If i recall correctly, Chuck said he picked up two tenths plus from that alone. I wonder if the 6.4 truck block would be better than the 6.1 in ring seal? Matt
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Re: ALI VS IRON Block
[Re: pittsburghracer]
#2467288
03/16/18 12:31 PM
03/16/18 12:31 PM
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Joined: Oct 2011
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WHITEDART
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bean town ....Ca
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Well Mopar should get a handicap because most of the guys on Moparts continue to argue that a cast iron block will produce so much more horsepower than an aluminum block will. Lol. Welcome to modern times guys. I guess I'm one of the idiots that still believes an iron block can produce more power than aluminum.. I think that's been proven over and over.. but if you ask me what would be faster in the car.. that would be a whole nother question.. people need to consider weight and rules when picking a block.. if you have a car that weighs 2200 lb . And your class requirements require you to be 2800.. more than likely you would want an iron block.. if you have a car that weighs 3000.. and the rules say you can be 2800.. I would think you would want the aluminum block..
In the 8s N/A.with Brett miller W8's 5.07 at 133 at 2700lb
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