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You guys ever go faster with less gear? #731280
06/22/10 03:14 PM
06/22/10 03:14 PM
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Mansfield, Tx
Jacob Pitt Offline OP
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In my small block Dart Sport I am running 5.13 gears and a 33" tall tire. It rpms pretty quick in the 1/8th mile and haven't had it run in the 1/4 with the new 422" motor yet. I was kind of thinking about less gear and less tire to reduce mass. Have any of you guys ever switched to less gear and went faster/quicker? Thinking of 4.88's or 4.56's. Normal footbraking e.t.'s are 6.20's at 108mph at 2930lbs.


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Post deleted by Defbob [Re: Jacob Pitt] #731281
06/22/10 03:19 PM
06/22/10 03:19 PM

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Re: You guys ever go faster with less gear? #731282
06/22/10 03:39 PM
06/22/10 03:39 PM
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Eighty Four, PA
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Yes

Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731283
06/22/10 04:21 PM
06/22/10 04:21 PM
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Romeo MI
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Thats probably a good gear for the 1/8 but its too
steep for the 1/4 with a 422".... try the 4.56... you
should have enough torque to pull it

Re: You guys ever go faster with less gear? [Re: MR_P_BODY] #731284
06/22/10 05:30 PM
06/22/10 05:30 PM
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Sherman Texas
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The Shocker Offline
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Check this out.My mild 408 in my Dart has run a best of 7.27 @ 94.00 in the 1/8 with the 4.10's ,best 60' was a 1.60.I switched the center section to one with 4.86 for the 1/8 and my best is 7.26 @ 92.8 with a 1.54 60'.Keep in mind it weighs 2980 with me in it and has a Powergilde with 26 inch tall tires .I dont know ,but i think im gunna sell the 4.86 chunk i bought and just run the 4.10's again.Dont know till you try.With the 4.10's i was crossing the line in the 1/8 at about 4800 rpm at 94 mph .With the 4.86's im crossing right at 6200 rpm (which is my redline with the hydraulic cam power wise) @ 92 mph ,and no faster IMO.Im actually considering going to 3.90's to see what happens .Crazy huh ???


http://www.youtube.com/watch?v=ykcsXMV3vfg My Dart ,and im just getting started...
Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731285
06/22/10 05:51 PM
06/22/10 05:51 PM
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I had a 2,800lb Challenger with a ported W-2 360/727. 5.13 and 32" tall tires - 10.22@130+ and forgot if it was 6.40's or 6.50's that I touched a couple of times. 1.37 best 60' footbraking also. It was all the gear it could handle. So 4.56 or 4.88 should work better with your stroker. Also found out that shifting at 7,100 and 6,800 didn't seem to make any difference, so I shifted lower.

Re: You guys ever go faster with less gear? [Re: Locomotion] #731286
06/22/10 09:45 PM
06/22/10 09:45 PM
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Mansfield, Tx
Jacob Pitt Offline OP
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Thanks for the info guys. I only run 4.30's in the Challenger but with a big block it has no problem with torque and is much heavier. I think a 4.88 or 4.56 would pick up my mph and help with hot tracks. Just one more thing on my to do list. So good brakes and less gears are on the list.


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Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731287
06/22/10 11:11 PM
06/22/10 11:11 PM
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Adrian, Mi
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My brother's 71 GTX stock 440 6bbl,509 cam,with 4.30 gear's ran 13.20@105 went to 3.55 gear's and car ran 12.88@107 with nothing else changed

Re: You guys ever go faster with less gear? [Re: pro6pakRR] #731288
06/22/10 11:28 PM
06/22/10 11:28 PM
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Northeast, Alpine, NY
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Just did some testing with the old cuda last weekend and it ran 6.56 with a 3.91 gear and a MT street radial 28" tall. Tryed 4.30 gears and it slowed down. Tryed 4.10 it slowed down. I have yet to try 4.56 but why spin the motor so high if you dont have to..Your BB would hook up with a 3.73 or 3.91 gear and a smaller tire around 28 to 29" tall. It has run a best of 6.39 with the 3.91 gears....Phill

Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731289
06/23/10 12:10 AM
06/23/10 12:10 AM
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You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte

Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731290
06/23/10 06:02 AM
06/23/10 06:02 AM
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Mt.Vernon IL
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go with some 3.23's

Re: You guys ever go faster with less gear? [Re: Twin Turbo Mower] #731291
06/23/10 06:30 AM
06/23/10 06:30 AM
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NJ central
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I went from 355 to 410 and did the same et but lost some mph.

Re: You guys ever go faster with less gear? [Re: Scamp408] #731292
06/23/10 09:05 AM
06/23/10 09:05 AM
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Indy
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I think it just comes down to the specific combo…FWIW, when I switched from 3:55’s to 4.10’s my car picked up half a second, but that was with a somewhat mild 360 in my 3250lbs car.


67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
Re: You guys ever go faster with less gear? [Re: Monte_Smith] #731293
06/23/10 10:13 AM
06/23/10 10:13 AM
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Mansfield, Tx
Jacob Pitt Offline OP
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Quote:

You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte




Are these real steep gears mainly just for high winding motors with narrow power bands? Are gears one of the things that the more power you make the less gear you need?


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Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731294
06/23/10 12:28 PM
06/23/10 12:28 PM
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You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte

did you ever see a super stock car all of them has steep gears?

Re: You guys ever go faster with less gear? [Re: HEMI472] #731295
06/23/10 12:53 PM
06/23/10 12:53 PM
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Quote:


You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte

did you ever see a super stock car all of them has steep gears?




SS,stock and other class cars that are held to limits and specs need to use every way possible to gain every minute advantage and max output. A car with unlimited combos,weight,cubic inches,power adders,with no restrictions are more likely to benifit from less gear.Most bracket cars fall in this catagory(less gear).They would never last winging them with deep gears,where as a class car doesn't have to run hundereds of rounds each season and are heavely maintained after only a few runs.

Re: You guys ever go faster with less gear? [Re: HEMI472] #731296
06/23/10 02:32 PM
06/23/10 02:32 PM
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Quote:


You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte

did you ever see a super stock car all of them has steep gears?


As BG said, this is not a stocker, super stocker, pro stocker, or comp car, that has a tiny power window and are trying to ring every ounce out of it. You can't compare class cars with bracket racers. In stock, you have stock bore/stroke motors, with factory heads and carbs running 9s, in heavy cars on a small tire. Most average bracket cars with 500in motors, big tires and link suspensions are lucky to do that and most will be as quick or quicker, with less gear. Its more about the torque converter than anything.

Monte

Re: You guys ever go faster with less gear? [Re: Monte_Smith] #731297
06/24/10 07:11 AM
06/24/10 07:11 AM
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Eighty Four, PA
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Quote:

Quote:


You want to be fast, you need wheelspeed, not rpm. A steep gear is usually a lot of noise from engine rpm, but the car is going nowhere.

Monte

did you ever see a super stock car all of them has steep gears?


As BG said, this is not a stocker, super stocker, pro stocker, or comp car, that has a tiny power window and are trying to ring every ounce out of it. You can't compare class cars with bracket racers. In stock, you have stock bore/stroke motors, with factory heads and carbs running 9s, in heavy cars on a small tire. Most average bracket cars with 500in motors, big tires and link suspensions are lucky to do that and most will be as quick or quicker, with less gear. Its more about the torque converter than anything.

Monte




X2 Class cars also rely on dead hook which terminates HP and torque,a bracket or quick car likes a little wheelspin and it is controled by proper use of torque application in various methods:gears,converters,launch controls and etc.It's been proven over and over less gear=more MPH=better ET in most cases.Case in point my car started with 5.13 and picked up going to 4.88,in the quest to lessen the RPM at the stripe we switched to 4.56 and the car picked up even more.With the over abundence of HP and torque the Hemi makes we may consider 4.30s.We did this in Ron McCellands Hemi and he dropped from 9.60s to 9.50 with the gear being the only change.

Re: You guys ever go faster with less gear? [Re: B G Racing] #731298
06/24/10 10:38 AM
06/24/10 10:38 AM
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Amarillo, Tx
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in my 408 dart i went from 456 to 430. my 60' and 1/8m et's were slower but my 1/4 i picked up 3 tenths and 6mph.


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Re: You guys ever go faster with less gear? [Re: Jacob Pitt] #731299
06/24/10 10:50 AM
06/24/10 10:50 AM
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Ohio
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an old combo with sb, 32 tire and 5.57's picked up going to 5.38's.

Re: You guys ever go faster with less gear? [Re: 9 Sec Phill] #731300
06/25/10 04:16 PM
06/25/10 04:16 PM
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Ontario.Canada
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..there was an article on a fellow in Quebec running a 408.
can't remember the specifics but it was in the 'tens and the 3.91's were quicker than the 4.10's in his Duster.

Re: You guys ever go faster with less gear? [Re: can.al] #731301
06/25/10 10:05 PM
06/25/10 10:05 PM
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Georgetown, TX
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Jake, sure wish I had that car back. Hell I wish I had the time and money to race at all.


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