Aluminum 8 3/4 Housing

House of Darts · 04-29-2009, 11:03 PM

Any thoughts on using Mopars' aluminum housing w/billet caps in a 440 Dart Stocker? Will the 742 hold the torque?

Jeremy · 04-30-2009, 10:51 AM

I don't think NHRA would like that in Stock.

Dusty Lowell · 04-30-2009, 11:14 AM

.................

Chuck Beach · 04-30-2009, 12:32 PM

Dusty,
You can use one in stock and MOPAR (if they are still in business) pays contingency. The problem is when you break a rear end it will usually break the aluminum housing. Been there done that. I asked several manufacturers if they can fix it and they said no ... they are about 11 lbs. lighter than the cast one and are not suppose to flex as much, but they are expensive and won't take the impact of a rear end breakage ...

Jeremy · 04-30-2009, 01:47 PM

Chuck, I asked NHRA about this a couple of year ago and they said no. I think I still have the letter some place. Maybe this has changed, but are you sure as I would like to use one.
Thanks Jerry

Chuck Beach · 04-30-2009, 01:50 PM

I ran one for over 3 years before I broke it ...

Myron Piatek · 04-30-2009, 05:05 PM

If the aluminum center section is listed as a Stock class contingency item, it should indicate that it is legal for use in Stock. It is legal in IHRA and I've been using it for almost 2 seasons. I thought I would be hearing some noise and possibly replacing the ring & pinion by now, but it seems to be holding up rather well. I've only had high 1.40 60' times, usually 1.50-1.51, but I have to weigh 3,530+ lbs.

On a similar note, the Moser 8 3/4 housing has been approved by NHRA for Stock!

http://www.dragracingonline.com/agen...0-xi_4-56.html

Paul Precht · 04-30-2009, 10:32 PM

Are we talking about carriers or housings

Jeff Lee · 04-30-2009, 10:51 PM

Regarding NHRA, maybe Evan Smith could chime in on the illegality of aluminum center sections.

Bob Mulry · 05-01-2009, 12:46 PM

Jeff,

That's a Ford and he is a technical expert who is a published author in National Dragster.

Now my plan is to put a Ford 9" housing with a Strange Aluminum 12 bolt center section in our stocker and see if we can sell that to NHRA.

Bob

04-29-2009, 11:03 PM	#1
House of Darts Member Join Date: Mar 2007 Posts: 346 Likes: 19 Liked 20 Times in 15 Posts	Aluminum 8 3/4 Housing Any thoughts on using Mopars' aluminum housing w/billet caps in a 440 Dart Stocker? Will the 742 hold the torque?

04-30-2009, 10:51 AM	#2
Jeremy Junior Member Join Date: Dec 2002 Posts: 95 Likes: 0 Liked 1 Time in 1 Post	Re: Aluminum 8 3/4 Housing I don't think NHRA would like that in Stock.

04-30-2009, 11:14 AM	#3
Dusty Lowell Member Join Date: Sep 2004 Location: Kensington, NH Posts: 103 Likes: 0 Liked 0 Times in 0 Posts	Re: Aluminum 8 3/4 Housing ................. __________________ Dusty Lowell #1773 STK F/SA

04-30-2009, 12:32 PM	#4
Chuck Beach Senior Member Join Date: Jun 2006 Location: Delaware, Ohio Posts: 664 Likes: 12 Liked 58 Times in 13 Posts	Re: Aluminum 8 3/4 Housing Dusty, You can use one in stock and MOPAR (if they are still in business) pays contingency. The problem is when you break a rear end it will usually break the aluminum housing. Been there done that. I asked several manufacturers if they can fix it and they said no ... they are about 11 lbs. lighter than the cast one and are not suppose to flex as much, but they are expensive and won't take the impact of a rear end breakage ... __________________ Chuck Beach 3340 STK

04-30-2009, 01:47 PM	#5
Jeremy Junior Member Join Date: Dec 2002 Posts: 95 Likes: 0 Liked 1 Time in 1 Post	Re: Aluminum 8 3/4 Housing Chuck, I asked NHRA about this a couple of year ago and they said no. I think I still have the letter some place. Maybe this has changed, but are you sure as I would like to use one. Thanks Jerry

04-30-2009, 01:50 PM	#6
Chuck Beach Senior Member Join Date: Jun 2006 Location: Delaware, Ohio Posts: 664 Likes: 12 Liked 58 Times in 13 Posts	Re: Aluminum 8 3/4 Housing I ran one for over 3 years before I broke it ... __________________ Chuck Beach 3340 STK

04-30-2009, 05:05 PM	#7
Myron Piatek VIP Member Join Date: Nov 2001 Location: Florida Posts: 1,542 Likes: 34 Liked 138 Times in 51 Posts	Re: Aluminum 8 3/4 Housing If the aluminum center section is listed as a Stock class contingency item, it should indicate that it is legal for use in Stock. It is legal in IHRA and I've been using it for almost 2 seasons. I thought I would be hearing some noise and possibly replacing the ring & pinion by now, but it seems to be holding up rather well. I've only had high 1.40 60' times, usually 1.50-1.51, but I have to weigh 3,530+ lbs. On a similar note, the Moser 8 3/4 housing has been approved by NHRA for Stock! http://www.dragracingonline.com/agen...0-xi_4-56.html __________________ LOCOMOTION Racing Last edited by Myron Piatek; 04-30-2009 at 05:16 PM.

04-30-2009, 10:32 PM	#8
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 733 Likes: 360 Liked 327 Times in 121 Posts	Re: Aluminum 8 3/4 Housing Are we talking about carriers or housings

04-30-2009, 10:51 PM	#9
Jeff Lee VIP Member Join Date: Jul 2007 Location: Anthem, Arizona Posts: 2,766 Likes: 0 Liked 3 Times in 3 Posts	Re: Aluminum 8 3/4 Housing Regarding NHRA, maybe Evan Smith could chime in on the illegality of aluminum center sections. __________________ Jeff Lee 7494 D/S '70 AMX

05-01-2009, 12:46 PM	#10
Bob Mulry VIP Member Join Date: Apr 2002 Location: Coarsegold, CA Posts: 1,016 Likes: 57 Liked 320 Times in 102 Posts	Re: Aluminum 8 3/4 Housing Jeff, That's a Ford and he is a technical expert who is a published author in National Dragster. Now my plan is to put a Ford 9" housing with a Strange Aluminum 12 bolt center section in our stocker and see if we can sell that to NHRA. Bob __________________ Bob Mulry 7516 STK A & M Motorsports