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iron to aluminum block
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DRR Sportsman
Picture of Mike Frizie
posted
what changes , if any, have you had to make to your suspension setups in a dragster when changing from iron to aluminum blocks?


Michael Frizie
ET 2471
 
Posts: 571 | Location: Winston, GA | Registered: April 10, 2002Reply With QuoteReport This Post
DRR Elite
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None
 
Posts: 13522 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
DRR Trophy
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DRB motorsports. I noticed you have a Diamond race car. Call Dan as has been noticed with more people running alumn. blocks a few easy changes will make a huge improvement. Also Gary Fleenor at Fleenor Trans. has a Diamond and alumn. motor and this was a change from iron to alumn. I kinda know what the changes are but feel it is going behind someones back to post. Dan has the info on his cars and the data so call him.
 
Posts: 318 | Location: ohio | Registered: June 06, 2006Reply With QuoteReport This Post
DRR Pro
Picture of Paul S/Q
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same as noted above .... none

except car runs faster because its 110 lbs lighter
 
Posts: 783 | Location: hopefully pickin up a check in the winners circle | Registered: November 29, 2006Reply With QuoteReport This Post
DRR Top Comp
Picture of wideopen231
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quote:
Originally posted by Paul S/Q:
same as noted above .... none

except car runs faster because its 110 lbs lighter


I thought block was only 100 lbs. lighter. Is other 10 from right rear hip pocket being lighter?LOL




America home of free. Brought to you by 2nd amendment.
 
Posts: 4178 | Location: Greensboro NC | Registered: May 24, 2011Reply With QuoteReport This Post
DRR Sportsman
Picture of Mike Frizie
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from what i've read , brodix aluminum is 120 lighter than dart big M.


Michael Frizie
ET 2471
 
Posts: 571 | Location: Winston, GA | Registered: April 10, 2002Reply With QuoteReport This Post
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I would think that ride height would be affected by the amount of the spring rate.


Foxtrot Juliet Bravo
 
Posts: 6378 | Location: Illinois | Registered: July 08, 2004Reply With QuoteReport This Post



DRR Trophy
Picture of NC3x58
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I agree with calling Dan, give him a call and see what he says. But if I had to venture a guess it won't be major changes, and maybe a shock spring rate change..


Nick Craig

1971 Camaro Split Bumper
376ci LS3
 
Posts: 410 | Location: Ohio | Registered: December 28, 2013Reply With QuoteReport This Post
DRR Top Comp
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This is a Ray Miller I did the engine and transmission. It's owner bought it from guy who weighed 300 plus lbs, and ran a standard issue steel tall deck BBC.

Needless to say, they knew it was gonna need springs when the owners 100 lb daughter got in the car, after I completed the engine & transmission.

They had another identical Ray Miller dragster sitting next to it in the garage aluminum block, the owners other daughter drove.


Springs... maybe





Tall deck


 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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When I switched from iron to aluminum block I also added a 110lb roots blower so it was a wash for me Big Grin

If its a suspended car you might check the before and after right height, that could affect your bar angle maybe just a little if the height is higher with the aluminum block, other than that just run it
 
Posts: 2410 | Location: Moving back to the door side | Registered: April 30, 2010Reply With QuoteReport This Post
DRR Top Comp
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Aluminum block, the bigger issue is main bearing clearances at operating temp.

If it's not perfect, it'll run for a little while before showing itself in the line bore to the next guy, who's hired to fix it.

Then it gets real interesting.
 
Posts: 9398 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Sportsman
Picture of Bob Deniker
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I had to move my top bars up one hole. It was shaking the tires bad enough that I had to lift.
 
Posts: 621 | Location: Latrobe Pa. | Registered: July 30, 2007Reply With QuoteReport This Post
DRR S/Pro
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quote:
Originally posted by DRB Motorsports:
what changes , if any, have you had to make to your suspension setups in a dragster when changing from iron to aluminum blocks?


I'd say it would depend on your setup now but likely just a ride height adjustment.
 
Posts: 2145 | Location: Tewksbury, MA,USA | Registered: November 03, 2000Reply With QuoteReport This Post
DRR Trophy
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DRB Motorsports, Did you get a chance to call Dan @ Diamond. I told him Monday about your change and he will be glad to go over what he has found to work well.
 
Posts: 318 | Location: ohio | Registered: June 06, 2006Reply With QuoteReport This Post



DRR Sportsman
Picture of Mike Frizie
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no not yet. super busy at work . got time. considering throwing everything from the 598 into an aluminum block over the winter. thanks for checking with him. ill get with him soon .


Michael Frizie
ET 2471
 
Posts: 571 | Location: Winston, GA | Registered: April 10, 2002Reply With QuoteReport This Post
DRR Trophy
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Unless youre going 450 or faster, probably nothing. As Top38 said, maybe a slight ride height adjustment, thats about it


"Sugar Shane"
 
Posts: 119 | Location: No clue | Registered: March 01, 2009Reply With QuoteReport This Post
DRR Sportsman
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quote:
Originally posted by DRB Motorsports:
no not yet. super busy at work . got time. considering throwing everything from the 598 into an aluminum block over the winter. thanks for checking with him. ill get with him soon .


You better order the block now if that's your plan. Brodix was 10-14 weeks out.....
 
Posts: 122 | Location: Over here | Registered: November 28, 2007Reply With QuoteReport This Post
DRR Sportsman
Picture of Mike Frizie
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quote:
Originally posted by Jonesz:
quote:
Originally posted by DRB Motorsports:
no not yet. super busy at work . got time. considering throwing everything from the 598 into an aluminum block over the winter. thanks for checking with him. ill get with him soon .


You better order the block now if that's your plan. Brodix was 10-14 weeks out.....


Got it dropped off at engine builder. Excited to see how much it changes it.


Michael Frizie
ET 2471
 
Posts: 571 | Location: Winston, GA | Registered: April 10, 2002Reply With QuoteReport This Post
DRR Sportsman
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All things being equal, it will pick up about a tenth. That's what I've seen on the ones I've done.
 
Posts: 122 | Location: Over here | Registered: November 28, 2007Reply With QuoteReport This Post
DRR Sportsman
Picture of 329L
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On my 2017 american, i had to change from a 400 lb spring to a 350


Jeremiah Hall
 
Posts: 704 | Location: Evansville, IN | Registered: February 24, 2010Reply With QuoteReport This Post
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