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#2457763 - 02/26/18 06:28 AM Re: Gearing a street/strip 500" BB [Re: OhioMopar]
ProSport Offline
I Live Here

Registered: 01/20/03
Posts: 17629
Loc: 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.

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#2457826 - 02/26/18 09:59 AM Re: Gearing a street/strip 500" BB [Re: topside]
Clanton Offline
master

Registered: 05/15/11
Posts: 3491
Loc: 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.


Edited by Clanton (02/26/18 05:41 PM)
_________________________
GOTBOOST!New improved with Victor heads.
http://www.enginelabs.com/mopar-big-bloc...t-of-necessity/

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#2458112 - 02/26/18 07:14 PM Re: Gearing a street/strip 500" BB [Re: topside]
topside Offline
I Live Here

Registered: 01/19/03
Posts: 12508
Loc: 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.

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#2458346 - 02/27/18 10:18 AM Re: Gearing a street/strip 500" BB [Re: topside]
SILVER67 Offline
super stock

Registered: 02/04/06
Posts: 760
Loc: 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
_________________________
Competition Wedge Engines Brewerton, NY

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#2458416 - 02/27/18 12:03 PM Re: Gearing a street/strip 500" BB [Re: SILVER67]
GY3 Offline


Registered: 12/13/13
Posts: 2437
Loc: 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


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#2459135 - 02/28/18 08:25 PM Re: Gearing a street/strip 500" BB [Re: topside]
patosmith Offline
enthusiast

Registered: 02/20/11
Posts: 254
Loc: 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...

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#2459158 - 02/28/18 08:49 PM Re: Gearing a street/strip 500" BB [Re: patosmith]
ProSport Offline
I Live Here

Registered: 01/20/03
Posts: 17629
Loc: 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.

Top
#2459160 - 02/28/18 08:51 PM Re: Gearing a street/strip 500" BB [Re: GY3]
ProSport Offline
I Live Here

Registered: 01/20/03
Posts: 17629
Loc: 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.

Top
#2459799 - 03/02/18 04:14 AM Re: Gearing a street/strip 500" BB [Re: topside]
383man Offline
Too Many Posts

Registered: 01/19/03
Posts: 26846
Loc: 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
_________________________
My car...63 Sport Fury Max Wedge wanna be street car..with new 493 pump gas full exh eng.......10.76 @ 124.49 ! ! ! My page on the cool 62-65 Mopar site ! http://www.1962to1965mopar.ornocar.com/mmo82008.html

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#2459847 - 03/02/18 08:26 AM Re: Gearing a street/strip 500" BB [Re: 383man]
DaveRS23 Offline
master

Registered: 01/20/03
Posts: 4711
Loc: 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

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#2459927 - 03/02/18 11:54 AM Re: Gearing a street/strip 500" BB [Re: SILVER67]
cruzin Offline
super stock

Registered: 02/06/03
Posts: 1102
Loc: Tucson, AZ
Silver67,

Just curious your results for;

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

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#2460013 - 03/02/18 02:54 PM Re: Gearing a street/strip 500" BB [Re: ProSport]
GY3 Offline


Registered: 12/13/13
Posts: 2437
Loc: 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:


Attachments
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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