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Re: Gearing a street/strip 500" BB [Re: OhioMopar] #2457763
02/26/18 09:28 AM
02/26/18 09:28 AM
Joined: Jan 2003
Posts: 17,699
Akron, Ohio
ProSport Offline
I Live Here
ProSport  Offline
I Live Here

Joined: Jan 2003
Posts: 17,699
Akron, Ohio
Originally Posted By OhioMopar
Originally Posted By ProSport
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.
up


Sassy Grass street Duster, best of 10.69 at 124 driven to the track with 3.23 gears, naturally aspirated on 93 octane.
Re: Gearing a street/strip 500" BB [Re: topside] #2457826
02/26/18 12:59 PM
02/26/18 12:59 PM
Joined: May 2011
Posts: 3,522
northern,Ohio,USA
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Clanton Offline
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Clanton  Offline
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Joined: May 2011
Posts: 3,522
northern,Ohio,USA
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.

GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/
Re: Gearing a street/strip 500" BB [Re: topside] #2458112
02/26/18 10:14 PM
02/26/18 10:14 PM
Joined: Jan 2003
Posts: 13,108
So Near, Yet So Far
topside Offline OP
I Live Here
topside  Offline OP
I Live Here

Joined: Jan 2003
Posts: 13,108
So Near, Yet So Far
Well, I think I'm gonna step back, swap in the 3.55s first, drive the car when the weather's decent, and see how it behaves.
Anybody got a desktop dyno program I can "borrow"? Last one I bought uses a floppy disc and I have nothing nowadays that accommodates a floppy.

Re: Gearing a street/strip 500" BB [Re: topside] #2458346
02/27/18 01:18 PM
02/27/18 01:18 PM
Joined: Feb 2006
Posts: 772
Liverpool, NY
S
SILVER67 Offline
super stock
SILVER67  Offline
super stock
S

Joined: Feb 2006
Posts: 772
Liverpool, NY
’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

Re: Gearing a street/strip 500" BB [Re: SILVER67] #2458416
02/27/18 03:03 PM
02/27/18 03:03 PM
Joined: Dec 2013
Posts: 2,667
Wichita
G
GY3 Offline
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GY3  Offline
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Joined: Dec 2013
Posts: 2,667
Wichita
Originally Posted By SILVER67
’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
10.69 @ 128mph with 150hp shot of nitrous

Re: Gearing a street/strip 500" BB [Re: topside] #2459135
02/28/18 11:25 PM
02/28/18 11:25 PM
Joined: Feb 2011
Posts: 257
Spanaway, Washington State
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patosmith Offline
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patosmith  Offline
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Joined: Feb 2011
Posts: 257
Spanaway, Washington State
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...

Re: Gearing a street/strip 500" BB [Re: patosmith] #2459158
02/28/18 11:49 PM
02/28/18 11:49 PM
Joined: Jan 2003
Posts: 17,699
Akron, Ohio
ProSport Offline
I Live Here
ProSport  Offline
I Live Here

Joined: Jan 2003
Posts: 17,699
Akron, Ohio
Originally Posted By patosmith
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. blush


Sassy Grass street Duster, best of 10.69 at 124 driven to the track with 3.23 gears, naturally aspirated on 93 octane.
Re: Gearing a street/strip 500" BB [Re: GY3] #2459160
02/28/18 11:51 PM
02/28/18 11:51 PM
Joined: Jan 2003
Posts: 17,699
Akron, Ohio
ProSport Offline
I Live Here
ProSport  Offline
I Live Here

Joined: Jan 2003
Posts: 17,699
Akron, Ohio
Originally Posted By GY3
Originally Posted By SILVER67
’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.


Sassy Grass street Duster, best of 10.69 at 124 driven to the track with 3.23 gears, naturally aspirated on 93 octane.
Re: Gearing a street/strip 500" BB [Re: topside] #2459799
03/02/18 07:14 AM
03/02/18 07:14 AM
Joined: Jan 2003
Posts: 27,067
Balt. Md
3
383man Offline
Too Many Posts
383man  Offline
Too Many Posts
3

Joined: Jan 2003
Posts: 27,067
Balt. Md
I run a Dynamic 9.5 converter that will flash about 4200 at the track. And I use 4.30's with a 30" tall tire. I will say it drives great with that converter as it has no slippage driving around even on back roads at 2000 rpm and in that area. I honestly feel like my car may go faster with less gear as I trap about 6400 and it pulls real hard from 5000 to 6200. I just don't think I need that much gear with my 493 eng. I would be very curious to see how the converter works and drives with say 3.91's in the car as the converter was actually built for my old 440 and I just put it back in behind the 493 and it has worked nicely. I really hope to maybe swap in a 3.91 or 3.73 pumkin into my 8-3/4 rear and try it. But I will say I really like how nice the Dynamic converter works and how it drives so nice even at lower rpm's without it sounding like it has any slippage to me. Good luck with yours , Ron

Re: Gearing a street/strip 500" BB [Re: 383man] #2459847
03/02/18 11:26 AM
03/02/18 11:26 AM
Joined: Jan 2003
Posts: 4,972
Benton, IL.
D
DaveRS23 Offline
master
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master
D

Joined: Jan 2003
Posts: 4,972
Benton, IL.
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.


KOS
Re: Gearing a street/strip 500" BB [Re: SILVER67] #2459927
03/02/18 02:54 PM
03/02/18 02:54 PM
Joined: Feb 2003
Posts: 1,105
Tucson, AZ
C
cruzin Offline
super stock
cruzin  Offline
super stock
C

Joined: Feb 2003
Posts: 1,105
Tucson, AZ
Silver67,

Just curious your results for;

-3:23 with the exhaust off.
-3:54 with exhaust on.

Re: Gearing a street/strip 500" BB [Re: ProSport] #2460013
03/02/18 05:54 PM
03/02/18 05:54 PM
Joined: Dec 2013
Posts: 2,667
Wichita
G
GY3 Offline
master
GY3  Offline
master
G

Joined: Dec 2013
Posts: 2,667
Wichita
Originally Posted By ProSport
Originally Posted By GY3
Originally Posted By SILVER67
’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:

20171011_141621.png

'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's
10.69 @ 128mph with 150hp shot of nitrous

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