904 aluminium drum ??s - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech 904 aluminium drum ??s

Print Thread

904 aluminium drum ??s #885427 12/22/10 02:41 AM 12/22/10 02:41 AM
Joined: Mar 2003 Posts: 1,632 Lubbock,TX D DavidDean OP top fuel
DavidDean OP top fuel D Joined: Mar 2003 Posts: 1,632 Lubbock,TX	I know how important an alum drum is in a 727 from a saftey stand point and seems like I read it was worth maybe .05. What about an alum drum in the 904 seems like I read a post a while back that it wasnt such a saftey factor or worth near as much in a 904 but I cant find the post.Ive been using a stock drum w/ ok sucess but Im window shopping alum drums Thanks! 6371311-DRCJamesDean.jpg (45 downloads)

Re: 904 aluminium drum ??s [Re: DavidDean] #885428 12/22/10 02:49 AM 12/22/10 02:49 AM
Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio dartman366 I Live Here
dartman366 I Live Here Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio	Just my opinion, lot's of money for no real gain,more maintenance intensive and don't run one with a kevlar band,I have been running the stock drum's for ever, and had good luck with them. Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.

Re: 904 aluminium drum ??s [Re: dartman366] #885429 12/22/10 09:07 AM 12/22/10 09:07 AM
Joined: Jul 2006 Posts: 115 louisiana,usa O olemopar member
olemopar member O Joined: Jul 2006 Posts: 115 louisiana,usa	We have been running the stock drum and 904 forever, no problems 6.32@105 9.97@132 Thad 6371476-2010_11_05__004896[1].jpg (44 downloads)

Re: 904 aluminium drum ??s [Re: olemopar] #885430 12/22/10 09:42 AM 12/22/10 09:42 AM
Joined: Feb 2005 Posts: 2,528 Mansfield, Tx Jacob Pitt master
Jacob Pitt master Joined: Feb 2005 Posts: 2,528 Mansfield, Tx	I run the A&A billet steel drum in the 904 in the Dart. I didn't want to have to change my fluid every 20 passes like they say because that is two races for me. 2013 NHRA D4 Stock Champ #4 in the World IHRA Stock 2x IHRA Div.4 Stock Champ 14x Track Champ All using a Ultimate Converter Concepts converter. Call Lenny today 704-892-6837

Re: 904 aluminium drum ??s [Re: Jacob Pitt] #885431 12/22/10 01:21 PM 12/22/10 01:21 PM
Joined: Mar 2003 Posts: 1,632 Lubbock,TX D DavidDean OP top fuel
DavidDean OP top fuel D Joined: Mar 2003 Posts: 1,632 Lubbock,TX	Guess I'll stay w/ my modified stock unit Thanks

Re: 904 aluminium drum ??s [Re: DavidDean] #885432 12/22/10 03:32 PM 12/22/10 03:32 PM
Joined: May 2008 Posts: 1,131 Thigh-Gap Junction @ @#$%&*! New user name, Same old jerk!
@#$%&*! New user name, Same old jerk! @ Joined: May 2008 Posts: 1,131 Thigh-Gap Junction	Spinning cast iron at high speed is risky, that's why we get rid of the stock vibration dampers and flywheels. We'd probably wouldn't be able to run cast-iron crankshafts if they weren't contained inside the block, which makes for a good ballistic shield. Quote: Guess I'll stay w/ my modified stock unit Thanks Can you be sure the modification didn't weaken the drum? The 904 doesn't seem to have a history of problems, how lucky do you feel?

Re: 904 aluminium drum ??s [Re: @#$%&*!] #885433 12/22/10 06:16 PM 12/22/10 06:16 PM
Joined: Dec 2010 Posts: 8 Moss Point, MS M MrOctober44 member
MrOctober44 member M Joined: Dec 2010 Posts: 8 Moss Point, MS	You, Guy`s keep talking I don`t which way to go !!! Aluiminium Drum or Steel.

Re: 904 aluminium drum ??s [Re: @#$%&*!] #885434 12/22/10 07:54 PM 12/22/10 07:54 PM
Joined: Mar 2006 Posts: 9,863 MI, usa dvw master
dvw master Joined: Mar 2006 Posts: 9,863 MI, usa	Quote: Spinning cast iron at high speed is risky, that's why we get rid of the stock vibration dampers and flywheels. We'd probably wouldn't be able to run cast-iron crankshafts if they weren't contained inside the block, which makes for a good ballistic shield Quote: Guess I'll stay w/ my modified stock unit Thanks Can you be sure the modification didn't weaken the drum? The 904 doesn't seem to have a history of problems, how lucky do you feel? You don't need a aftermaket drum for a 904. I ask it now. Has anyone ever seen an exploded 904 high gear drum? Not I. Doug

Re: 904 aluminium drum ??s [Re: dvw] #885435 12/22/10 08:28 PM 12/22/10 08:28 PM
Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central RobX4406 I Live Here
RobX4406 I Live Here Joined: Apr 2005 Posts: 12,271 Overpriced Housing Central	Quote: Quote: Spinning cast iron at high speed is risky, that's why we get rid of the stock vibration dampers and flywheels. We'd probably wouldn't be able to run cast-iron crankshafts if they weren't contained inside the block, which makes for a good ballistic shield Quote: Guess I'll stay w/ my modified stock unit Thanks Can you be sure the modification didn't weaken the drum? The 904 doesn't seem to have a history of problems, how lucky do you feel? You don't need a aftermaket drum for a 904. I ask it now. Has anyone ever seen an exploded 904 high gear drum? Not I. Doug The next one I see will be the first! Plenty of transbraked 904's running around...

Re: 904 aluminium drum ??s [Re: RobX4406] #885436 12/22/10 08:31 PM 12/22/10 08:31 PM
Joined: Jul 2008 Posts: 30,460 Florida STAYcation dOOc The village idiot's idiot
dOOc The village idiot's idiot Joined: Jul 2008 Posts: 30,460 Florida STAYcation	TCS has run these drums UP til they explode .... I don't remember the #'s .... B U T ... I think it is uNpossible for an engine to spin-it that high.

Re: 904 aluminium drum ??s [Re: dOOc] #885437 12/22/10 09:45 PM 12/22/10 09:45 PM
Joined: Nov 2009 Posts: 3,082 St. Paul , Mn. tubtar master
tubtar master Joined: Nov 2009 Posts: 3,082 St. Paul , Mn.	I discussed this with length with Chuck Lofgren before mine was built and I came away with the impression that it really wasn't necessary from a safety stand point. I would guess that if you are shooting for every last ounce of E.T. , it would make sense........but aluminum is way more maintenance.

Re: 904 aluminium drum ??s [Re: tubtar] #885438 12/23/10 05:01 PM 12/23/10 05:01 PM
Joined: Jan 2003 Posts: 11,722 Portage,michigan B B3422W5 I Live Here
B3422W5 I Live Here B Joined: Jan 2003 Posts: 11,722 Portage,michigan	Quote: I discussed this with length with Chuck Lofgren before mine was built and I came away with the impression that it really wasn't necessary from a safety stand point. I would guess that if you are shooting for every last ounce of E.T. , it would make sense........but aluminum is way more maintenance. I cant speak to a 904, but i can say that rollerizing my old 727 and adding an aluminum drum resulted in zero ET gain over the tranny that was in the car before that didnt have these mods added. There was a post long ago about this and most if not all others reported seeing nothing ET wise as well with an aluminum drum....your results might vary. Didnt see squat going from 8.75 to Dana either, Dana was just as quick. 69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8

Re: 904 aluminium drum ??s [Re: DavidDean] #885439 12/23/10 05:19 PM 12/23/10 05:19 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	If an aluminum drum is lighter, physics says it has to pick up ET. But probably VERY little. If 727 comparisons, which have bigger, heavier drums, show little if any difference, than the lighter 904's would show even less. These differences probably fall into a "margin of error" in comparisons because there are so many variables that can affect the outcome on the track. Dana 60 vs 8 3/4" comparisons usually show little, if any difference in ET also. Dana 60 is heavier, but it's more efficient than an 8 3/4". 904 drum is also smaller in diameter so the centrifical loads are less.

Moderated by Al_Alguire, Hotwheelsjr, moparts, not_a_charger, RangerDan440, tboomer

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1