What gears with .509 cam, and what will it run?
#87872
07/13/08 01:57 AM
07/13/08 01:57 AM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
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Looking to ditch the 3.55's and change the gears in my Barracuda to match the cam. Its a 360, RPM heads, 11.6:1, MP 292/509 cam, RPM intake, 800 DP, A-833, and 8 3/4. Im running a 27" tall tire. I was thinking 4.10's. Is this a decent enough gear for the cam? This is not at all an expressway cruiser and will see 50/50 track and street time. I just want to match the gears to the combo for once in my life. Any opinions? Im ready to order
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: What gears with .509 cam?
[Re: Danan]
#87874
07/13/08 03:59 AM
07/13/08 03:59 AM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
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Yeah, was thinking 4.10's would be about perfect. I may be out of whack, but Im hoping for low-12's when its all said and done. I was originally hoping to dip into the 11's, but without a cam change, I dont think its going to happen. What do you all think?
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: What gears with .509 cam?
[Re: Baxter61]
#87876
07/13/08 08:32 AM
07/13/08 08:32 AM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,151
PA.
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I know our 70 duster is a lot lighter than your car(2600) but last year with a .030 over stock stroke 360 we went a 11.08. Pump gas engine with a 509 cam, 750 holley, victor intake, stock eldebrock heads, 727 trans, 488 gear, 1 5/8 header, app 4800 stall conv. that cam loves a high stall conv. We just finished installing a 520 solid racer brown cam, I ported the heads, and installed 1 7/8 headmen headers. We should have it out this wednesday so we will see what it goes now.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: What gears with .509 cam?
[Re: Danan]
#87877
07/13/08 08:35 AM
07/13/08 08:35 AM
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Joined: Jan 2003
Posts: 4,084 Indiana
W5Duster436
master
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master
Joined: Jan 2003
Posts: 4,084
Indiana
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Quote:
4.10s would be great, in my opinion. You could even experiment with a 28" tire (I use BFG Drag radials 28"x8.8"). Have fun!
Danan, Good to see you on here!
I just put 3.91's in mine and have basically the same setup except more cam. There'd be virtually no difference between 3.91's and 4.10's if you could find an original 3.91 setup. You will enjoy them. I drove mine the other day after putting them in and it hit the rev limiter instantly.
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Re: What gears with .509 cam, and what will it run?
[Re: ohiodemon]
#87879
07/13/08 02:26 PM
07/13/08 02:26 PM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
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Damn, what to do! I cant decide between the 4.10's and the 4.30's. I know at 60mph, there would be about 140rpm between the two. Would the 4.30's really be that much more of an advantage over the 4.10's?
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: What gears with .509 cam, and what will it run?
[Re: 69L78Nova]
#87880
07/13/08 03:35 PM
07/13/08 03:35 PM
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Joined: Feb 2005
Posts: 20,151 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,151
PA.
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best thing to remember is the 509 cam loves a high stall conv and low gears but unless you have a great working car or some super wide tires you will probably fry your tires. Sometimes the 484 purple shaft is a better option.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: What gears with .509 cam, and what will it run?
[Re: pittsburghracer]
#87881
07/13/08 04:03 PM
07/13/08 04:03 PM
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Joined: Apr 2007
Posts: 2,327 Glendale, AZ
69L78Nova
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Well, its a 4-speed car and will be run on a 275/60-15 drag radial, or a 28X9.00" slick
1969 Nova 454/M21/3.31 Mild mid-11 second weekend cruiser
1994 F150 XLT Super Cab 2WD 5.0/4R70W/3.55 (Daily driver)
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Re: What gears with .509 cam, and what will it run?
[Re: 69L78Nova]
#87882
07/14/08 03:45 AM
07/14/08 03:45 AM
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Joined: Nov 2004
Posts: 2,495 Oregon City, OR
Baxter61
top fuel
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top fuel
Joined: Nov 2004
Posts: 2,495
Oregon City, OR
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Quote:
Would the 4.30's really be that much more of an advantage over the 4.10's?
yes, but hardly any difference in performance between 3.91's and 4.10s I had 3.91's in both my dusters and they were great, but Im going to 3.73s in the "cruiser" and 4.30s in the "racer"
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