Re: Gearing a street/strip 500" BB
[Re: OhioMopar]
#2457763
02/26/18 09:28 AM
02/26/18 09:28 AM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
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There's also ALOT of local racers using Perfect Converter Company in Ohio with great results. If you call them ask for Bubba. He lives around the block from me. You seem to live around the block from nearly everything cool. Yes, lots of racers and fabricators right around me, Summit Racing is a few blocks away, and several dragstrips within 45 min. Plus there are local car shows every day of the week.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Gearing a street/strip 500" BB
[Re: topside]
#2457826
02/26/18 12:59 PM
02/26/18 12:59 PM
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Joined: May 2011
Posts: 4,489 northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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Recently I went to Perfect and I could not get what I needed to clear the nose and the pump so I sent my PTC in to get adjusted instead. ps: don't get me wrong there are people with good results using their Vert.
Last edited by Clanton; 02/26/18 08:41 PM.
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Re: Gearing a street/strip 500" BB
[Re: SILVER67]
#2458416
02/27/18 03:03 PM
02/27/18 03:03 PM
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Joined: Dec 2013
Posts: 4,680 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,680
Wichita
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’67 Coronet 505 with Eddy head std port Flat tappet .585/600 260@50 268@50 28” tire With 3.23’s 11.50’s Trap RPM about 5700-5800 @116-117 And 2900-3000 @ 70mph on the highway With 3.54 in Dana Trap RPM about 6000-6100 @120-121 11.0’s when exhaust is off 3200-3300 @ almost 70mph on the highway 9-1/2 convertor is more street friendly 8” convertor is obviously more loose and you have to think about pulling out of a parking lot or Dunkin to accelerate Doesn’t matter which gear or convertor is in the car……..@ 45-50 mph in manual 2nd it break the tires loose No doubt! I occasionally replace the Drag Radials with regular 275 street radials for a true radial class at our track. It is downright scary when you jump on it at the top of 2nd gear on the street!
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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Re: Gearing a street/strip 500" BB
[Re: patosmith]
#2459158
02/28/18 11:49 PM
02/28/18 11:49 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
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I'm about to find out how a Dana with 4:10 is going to be like in my Challenger. Most of the shows are close and I trailer to the track. 505 low deck stroker Trick Flow heads. Solid flat tappet cam. Sorry, don't have the spec in front of me. Comp Cam 23-232-4 26 inch tall Mickey Thompson in the rear. 727 with a converter with around 3,000 flash. Calvert leafs, bars and adjustable shocks.
Right now I have the stock 8 3/4 with 2:76 gears.
I have a feeling I'm not going to want to do much highway driving... 4.10 gears with a 26" tire is gonna make some RPM's.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Gearing a street/strip 500" BB
[Re: GY3]
#2459160
02/28/18 11:51 PM
02/28/18 11:51 PM
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Joined: Jan 2003
Posts: 17,918 Akron, Ohio
ProSport
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,918
Akron, Ohio
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’67 Coronet 505 with Eddy head std port Flat tappet .585/600 260@50 268@50 28” tire With 3.23’s 11.50’s Trap RPM about 5700-5800 @116-117 And 2900-3000 @ 70mph on the highway With 3.54 in Dana Trap RPM about 6000-6100 @120-121 11.0’s when exhaust is off 3200-3300 @ almost 70mph on the highway 9-1/2 convertor is more street friendly 8” convertor is obviously more loose and you have to think about pulling out of a parking lot or Dunkin to accelerate Doesn’t matter which gear or convertor is in the car……..@ 45-50 mph in manual 2nd it break the tires loose No doubt! I occasionally replace the Drag Radials with regular 275 street radials for a true radial class at our track. It is downright scary when you jump on it at the top of 2nd gear on the street! How does the car run and handle on the track with the 'regular' radials? One of my local tracks has a class like that and everyone wants me to run in it. Seems to me like it would be an ice skating rink.
1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
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Re: Gearing a street/strip 500" BB
[Re: 383man]
#2459847
03/02/18 11:26 AM
03/02/18 11:26 AM
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Joined: Jan 2003
Posts: 12,108 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,108
Benton, IL.
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I think that higher gear ratios will make the converter feel a bit softer down low on the street. And may impact the flash at the track, too.
But there won't likely be a huge difference just going from 4.30s to 3.91s.
Master, again and still
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Re: Gearing a street/strip 500" BB
[Re: ProSport]
#2460013
03/02/18 05:54 PM
03/02/18 05:54 PM
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Joined: Dec 2013
Posts: 4,680 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,680
Wichita
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’67 Coronet 505 with Eddy head std port Flat tappet .585/600 260@50 268@50 28” tire With 3.23’s 11.50’s Trap RPM about 5700-5800 @116-117 And 2900-3000 @ 70mph on the highway With 3.54 in Dana Trap RPM about 6000-6100 @120-121 11.0’s when exhaust is off 3200-3300 @ almost 70mph on the highway 9-1/2 convertor is more street friendly 8” convertor is obviously more loose and you have to think about pulling out of a parking lot or Dunkin to accelerate Doesn’t matter which gear or convertor is in the car……..@ 45-50 mph in manual 2nd it break the tires loose No doubt! I occasionally replace the Drag Radials with regular 275 street radials for a true radial class at our track. It is downright scary when you jump on it at the top of 2nd gear on the street! How does the car run and handle on the track with the 'regular' radials? One of my local tracks has a class like that and everyone wants me to run in it. Seems to me like it would be an ice skating rink. Not bad at all. I run Mickey Thompson Street Radials and they like 20-22psi. I leave in 2nd gear and put 100+ lbs.in the trunk over the rear bumper. Managed 1.72 60 ft. on a prepped track and got runner up in the last race. Typically runs about 11.70's on that setup so I dial a 12.0. The car goes straight as a string and works really well leaving off idle. Here is a pic of the launch:
'63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.
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