Re: Is a bigger carb worth it ?
[Re: T-bar]
#943277
03/05/11 06:54 AM
03/05/11 06:54 AM
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Joined: Feb 2011
Posts: 30
Australia
Charger VJ RB
member
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member
Joined: Feb 2011
Posts: 30
Australia
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I would keep everything except the converter, get one made to suit your combination.
RB XE274H Q-850
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Re: Is a bigger carb worth it ?
[Re: Charger VJ RB]
#943278
03/05/11 08:05 AM
03/05/11 08:05 AM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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Just as an example, our Challenger with an old 440, Indy SR headed, torquer 2 intake motor picked up 4mph and 3/10ths in the quarter going from a 850 to 950 carb. Same day, back to vack swap and no other changes, cam was a .509 using 1.6 arms (.543 theoretical lift) the 850 carb was pretty well scienced out too. So I would say yes, a 1050 dominator may hurt street manners though and would require a different manifold which may bring about hood clearance issues. I'd look at a custom 4150 for your application. HTH's Tig  BTW, The converter used in the above combo was a 10 inch B&M holeshot. Stalled around the figures you've posted. I agree a converter change would pick it up some too. Rear gear was 3.91, very similar combo barring cubes and lift.
Last edited by Tig; 03/05/11 08:13 AM.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Is a bigger carb worth it ?
[Re: Tig]
#943280
03/05/11 01:25 PM
03/05/11 01:25 PM
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Joined: Jul 2010
Posts: 1,491
Oologah, Oklahoma
Big Squeeze
pro stock
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pro stock
Joined: Jul 2010
Posts: 1,491
Oologah, Oklahoma
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Quote:
Just as an example, our Challenger with an old 440, Indy SR headed, torquer 2 intake motor picked up 4mph and 3/10ths in the quarter going from a 850 to 950 carb. Same day, back to vack swap and no other changes, cam was a .509 using 1.6 arms (.543 theoretical lift) the 850 carb was pretty well scienced out too.
So I would say yes, a 1050 dominator may hurt street manners though and would require a different manifold which may bring about hood clearance issues.
I'd look at a custom 4150 for your application.
HTH's Tig
BTW, The converter used in the above combo was a 10 inch B&M holeshot. Stalled around the figures you've posted. I agree a converter change would pick it up some too. Rear gear was 3.91, very similar combo barring cubes and lift.
What ET's and MPH's was the car running before and after? Were they both at the same A/F ratio??   
If you can't handle the truth, you're living a lie.......
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Re: Is a bigger carb worth it ?
[Re: Big Squeeze]
#943281
03/05/11 04:26 PM
03/05/11 04:26 PM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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Quote:
Quote:
Just as an example, our Challenger with an old 440, Indy SR headed, torquer 2 intake motor picked up 4mph and 3/10ths in the quarter going from a 850 to 950 carb. Same day, back to vack swap and no other changes, cam was a .509 using 1.6 arms (.543 theoretical lift) the 850 carb was pretty well scienced out too.
So I would say yes, a 1050 dominator may hurt street manners though and would require a different manifold which may bring about hood clearance issues.
I'd look at a custom 4150 for your application.
HTH's Tig
BTW, The converter used in the above combo was a 10 inch B&M holeshot. Stalled around the figures you've posted. I agree a converter change would pick it up some too. Rear gear was 3.91, very similar combo barring cubes and lift.
What ET's and MPH's was the car running before and after? Were they both at the same A/F ratio??
On the morning we had 4 - 5 runs with a best of 12.17 @ 111mph But mainly in the 12.20's. In the afternoon we only got one run with the new carb which was in the 12.00's @ 114ish (Cant remember exactly) Plugs looked a little lean so we upped the jets 2 sizes. Next day we had 4 runs. We ran a 12.00, 2 11.90's and a 11.85 @ 115.5 before breaking out but we were happy to do so  , IIRC we went up another 2 jet sizes all round after the first pass.
We didn't run an AFR gauge back then, seat of the pants and plug checks
HTH's Tig
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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