4spd vs. 904 - Moparts Forums

Register Log In Moparts Forums Unlawfl's Race & Engine Tech 4spd vs. 904

Print Thread

Page 1 of 2

1

2

4spd vs. 904 #463707 09/09/09 08:26 AM 09/09/09 08:26 AM
Joined: Mar 2007 Posts: 73 indiana M mrart01 OP member
mrart01 OP member M Joined: Mar 2007 Posts: 73 indiana	Which is faster in the 1/4 , anyone make the switch ? Did u gain or lose

Re: 4spd vs. 904 [Re: mrart01] #463708 09/09/09 08:45 AM 09/09/09 08:45 AM
Joined: Nov 2003 Posts: 3,060 Western New York sixpackbee master
sixpackbee master Joined: Nov 2003 Posts: 3,060 Western New York	All things being equal a 4 speed will beat an automatic every time. 1959 Bugeye Sprite 1967 Charger Black L code 1967 Coronet R/T Convert Green 440 auto bought from original owner 1968 Charger R/T Bronze 440 4 spd console AM/FM 1969 Super Bee WM21H B5 A40 D21 N96 1969 Barracuda Formula S 340 Convert pilot car 1969 Hemi Road Runner RM23J D32 Omaha orange 4.10 Dana N96 N85 1970 Super Bee WM23N FE5 V1X 3.91 axle package, N96 1970 Road Runner RM21N B3 V1X D13 1971 MG Midget 1971 Road Runner RM23H GW3, A57 1972 Road Runner RM23P FY1, D21

Re: 4spd vs. 904 [Re: sixpackbee] #463709 09/09/09 08:47 AM 09/09/09 08:47 AM
Joined: Jan 2003 Posts: 4,573 ...gently down the stream LAR_414 master
LAR_414 master Joined: Jan 2003 Posts: 4,573 ...gently down the stream	4spd is always FASTER. ET's could go either way.

Re: 4spd vs. 904 [Re: LAR_414] #463710 09/09/09 09:27 AM 09/09/09 09:27 AM
A Anonymous Unregistered
Anonymous Unregistered A	Next time your at the track see what every racer is running just about every car will have an automatic in it, i;ll put a auto up against a 4-speed any day of the week..

Re: 4spd vs. 904 #463711 09/09/09 09:41 AM 09/09/09 09:41 AM
Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi rowin4 master
rowin4 master Joined: Jun 2005 Posts: 6,257 gulfport, ms, west mi	Ask Charlie Westcott [ War fish ] Now they want to penalize him because he's running a stick. it's ok to butt heads, just don't do it with a butthead

Re: 4spd vs. 904 [Re: mrart01] #463712 09/09/09 10:36 AM 09/09/09 10:36 AM
Joined: Aug 2003 Posts: 43,129 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,129 Bend,OR USA	Quote: Which is faster in the 1/4 , It depends on the car and driver If you could make all things equal the stick trans and clutch has less parasitic drag and torque converter slippage so it will be faster and quicker due to those reasons, at least on paper Your results may vary Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 4spd vs. 904 [Re: Cab_Burge] #463713 09/09/09 10:59 AM 09/09/09 10:59 AM
Joined: Jan 2003 Posts: 4,573 ...gently down the stream LAR_414 master
LAR_414 master Joined: Jan 2003 Posts: 4,573 ...gently down the stream	Don't get confused on auto vs stick at the track. People run the autos, because they are CONSISTENT and easier to hook up and easier to shift. Makes for great bracket racing. Doesn't mean they are FASTER or Quicker......just easier.

Re: 4spd vs. 904 [Re: LAR_414] #463714 09/09/09 11:02 AM 09/09/09 11:02 AM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	I'd bet on the 904 over 95% of "833" racers.

Re: 4spd vs. 904 [Re: S/ST 3040] #463715 09/09/09 12:25 PM 09/09/09 12:25 PM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	Quote: I'd bet on the 904 over 95% of "833" racers. I went 11 rounds one day and beat a 340/904 combo in the final round for the win with an "833" Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: 4spd vs. 904 [Re: S/ST 3040] #463716 09/09/09 12:31 PM 09/09/09 12:31 PM
A Anonymous Unregistered
Anonymous Unregistered A	Quote: I'd bet on the 904 over 95% of "833" racers. I'll second that...

Re: 4spd vs. 904 [Re: S/ST 3040] #463717 09/09/09 12:33 PM 09/09/09 12:33 PM
Joined: Sep 2004 Posts: 2,091 oberlin, Ohio Rapid340 top fuel
Rapid340 top fuel Joined: Sep 2004 Posts: 2,091 oberlin, Ohio	You can't duplicate the torque multiplication of an automatic torque converter with a stick. They are almost always quicker but less efficient. The trick setup would be an automatic that locks up the converter after the launch. You get the best of both worlds. I dont know any mopar guys doing it. I think a lockup 904 wouldnt survive with much more torque than a stock motor at WOT. There are some GM guys with this setup. 1971 Factory Appearing Duster 340 11.000 @ 122 mph

Re: 4spd vs. 904 [Re: Rapid340] #463718 09/09/09 12:45 PM 09/09/09 12:45 PM
Joined: Jan 2003 Posts: 4,573 ...gently down the stream LAR_414 master
LAR_414 master Joined: Jan 2003 Posts: 4,573 ...gently down the stream	Not a perfect comparison, but look at SS/AH class. There you have 727 cases with 904 guts and every trick rollerbearing known to man. Very very efficent converters and transmissions. You also have 4spd stick cars there. I'm not sure what stick they are, but they are still a stick. The stick cars are a little lighter weight, so it's not a perfect comparison at all. Stick cars out MPH the 904's, and they are at about the same ET....right now.

Re: 4spd vs. 904 [Re: LAR_414] #463719 09/09/09 01:01 PM 09/09/09 01:01 PM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	SS/AH ala Charlie Wescott Sr. 5472174-DSCN2321.JPG (79 downloads)

Re: 4spd vs. 904 [Re: fourgearsavoy] #463720 09/09/09 01:02 PM 09/09/09 01:02 PM
Joined: Jan 2003 Posts: 25,200 Upper Midwest M MoparforLife Too Many Posts
MoparforLife Too Many Posts M Joined: Jan 2003 Posts: 25,200 Upper Midwest	Quote: Quote: I'd bet on the 904 over 95% of "833" racers. I went 11 rounds one day and beat a 340/904 combo in the final round for the win with an "833" Gus Doesn't mean you are quicker or bang the gears any better. Just had a better package. Back 'in the day' the 4 gear cars were quicker but do to improvements in transmission parts and converters available that no longer is as true as it once was. Also there aren't that many good 4 speed drivers left. Used to see a lot of 4 speed drivers that could bang a gear keeping the right foot on the floor (I could even do it (no more)) but not so many any more.

Re: 4spd vs. 904 [Re: fourgearsavoy] #463721 09/09/09 01:07 PM 09/09/09 01:07 PM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	Quote: Quote: I'd bet on the 904 over 95% of "833" racers. I went 11 rounds one day and beat a 340/904 combo in the final round for the win with an "833" Gus I meant in the same package. All's I'm saying is; most 833 guys can't nail their shifts with any kind of consistancy. You might be in that other 5% though. edit: I also see you don't run the 833 anymore. Last edited by S/ST 3040; 09/09/09 01:11 PM.

Re: 4spd vs. 904 [Re: S/ST 3040] #463722 09/09/09 03:06 PM 09/09/09 03:06 PM
Joined: Jan 2007 Posts: 3,695 nc E emarine01 master
emarine01 master E Joined: Jan 2007 Posts: 3,695 nc	Now I will confuse everyone with this, In the mud I have never seen anyone shift fast enough to keep up with a auto trans, most manual shift trucks fall flat on the shift, the resistance in the mud is grater than pavement and instantly slows down the drive line dropping rpm too much on clutch release, this factor must come to play in drag racing to some extent Just something to kick around

Re: 4spd vs. 904 [Re: emarine01] #463723 09/09/09 07:34 PM 09/09/09 07:34 PM
Joined: Mar 2007 Posts: 73 indiana M mrart01 OP member
mrart01 OP member M Joined: Mar 2007 Posts: 73 indiana	the combo i have i bought off of a class racer w/ a 360 /904 since i have a 340 i`m looking 4 any advantage i can get over a 360 even if it`s a 904...727...or 4 spd.

Re: 4spd vs. 904 [Re: mrart01] #463724 09/09/09 07:54 PM 09/09/09 07:54 PM
Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere S S/ST 3040 master
S/ST 3040 master S Joined: Jul 2006 Posts: 4,595 On the south side of Nowhere	Quote: the combo i have i bought off of a class racer w/ a 360 /904 since i have a 340 i`m looking 4 any advantage i can get over a 360 even if it`s a 904...727...or 4 spd. Who did you get it from?

Re: 4spd vs. 904 [Re: S/ST 3040] #463725 09/09/09 08:08 PM 09/09/09 08:08 PM
Joined: Mar 2007 Posts: 73 indiana M mrart01 OP member
mrart01 OP member M Joined: Mar 2007 Posts: 73 indiana	vance cummins out of grand haven michigan

Re: 4spd vs. 904 [Re: mrart01] #463726 09/09/09 08:17 PM 09/09/09 08:17 PM
Joined: Jan 2007 Posts: 1,169 MI 6 68shifter super stock
68shifter super stock 6 Joined: Jan 2007 Posts: 1,169 MI	4 speed for me, and for alot of years. But a 4 speed will probably cost twice as much starting from scratch than an auto. It all depends on what you want. If you want something only 5% can shift and have that ego push, excellent. Otherwise get what everyone can drive and stay with the auto. Just my 68' Barracuda (4 speed) 64' Savoy (4 speed) 65' Satellite (girl tranny)

Page 1 of 2

1

2

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

Hop To

Powered by UBB.threads™ PHP Forum Software 7.7.1