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Re: 4150-4500 gains?
[Re: rebel]
#51211
01/11/08 05:44 PM
01/11/08 05:44 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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That might be hard to say, but if you were upping the revs I would say yes. What do you have for a manifold, if you feel you need more plenum then it would benifit with the adaptor, gives added plenum volume that most people dont add when they stroke their engines. Remember that most manifolds are designed for a stock ci engine or slightly more ci 
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Re: 4150-4500 gains?
[Re: rebel]
#51212
01/11/08 07:09 PM
01/11/08 07:09 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
i currently run a 1025 race demon RS on my 400/512 combo, would i get a big gain if i fitted a 1050 dominator or would it be nominal? also in the past month 2 people i've talked to about carbs say you can get dominator carbs on a 4150 base?? i've done some nett surfing but can't find any info on this set up. is there such a carb or have these boys been smoking something thats stronger than the govt allows?? lastly if i was to change to a 4500 flange carb, are those promax adaptors the way to go? someone posted a pic of one of these adaptors the other week & they really look the part.
Yes and maybe... Yes, I very rarely use a 4150 on larger ci engine, never see them out perform a 4500.. Maybe, it will see gains w/ a 4150 to 4500 adapter, don't do that often anymore, I always use a 4500 manifold if at all possible, but when there wasn't much to choose from as far as manifolds, I think only a couple times did I not pick up w/ the adapter.
Even the bigger street stuff we build always gets a 4500. The 383/496 we just did got a 4500 and its a pure street car. 
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Re: 4150-4500 gains?
#51213
01/11/08 07:22 PM
01/11/08 07:22 PM
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Joined: Dec 2006
Posts: 4,647
aotearoa
rebel
OP
master
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OP
master
Joined: Dec 2006
Posts: 4,647
aotearoa
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Quote:
Yes and maybe... Yes,
are you sure you are sure on that? 
so no comment on 4150 dommys so i guess these guys are talking thru a hole in their heads huh? i've got the 400 indy manifold & its been matched to my junk -1 heads so i'm not wanting to part with it just yet, hence the promax adaptor, it looks like its a plastic unit so it would insulate the carb from the heat. i'll try & borrow a dommy first before i outlay my hard earned $$"s, the promax adaptor i could flick off if i dont see any marked improvements. thanks for the feedback. 
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Re: 4150-4500 gains?
#51214
01/11/08 07:23 PM
01/11/08 07:23 PM
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Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
Dartsport540
top fuel
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top fuel
Joined: Oct 2005
Posts: 1,646
Ringtown, Pa.
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I am also adding a 1050 Dominator and adapter to my 505 stroker motor. I ran the 505 with an 850 dp on it for the last 2 years. With a best of 9.45 et. Shifting at 6100 rpm, and crossing the traps at 6500rpm. I am hoping for a tenth or 2 increase in et??Do you think the Dominator will help??
548 cu. in., Bill Mitchell Aluminum Block, CRT 727 auto trans, Alston Chassis. 8.981et at 149.46 mph. 1.204et - 60 foot, So Far....
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Re: 4150-4500 gains?
[Re: rebel]
#51215
01/11/08 07:27 PM
01/11/08 07:27 PM
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Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
BradH
Taking time off to work on my car
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Taking time off to work on my car
Joined: Jan 2003
Posts: 15,439
Val-haul-ass... eventually
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Quote:
... 2 people i've talked to about carbs say you can get dominator carbs on a 4150 base...
Haven't heard of that, but QuickFuel, IIRC, offers 4150 carbs w/ 4500 bolt patterns... or something odd like that. 
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Re: 4150-4500 gains?
[Re: rebel]
#51218
01/11/08 09:32 PM
01/11/08 09:32 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
i had my demon fitted out in the 1050 combo but it ran like diaherra, when i spoke to scott? at demon carbs he told me i had the wrong combo & to make it into a 1025. he even sent me all the parts at no cost, which is totally unbelievable for a US company to do something like this to me living on the other side of the globe. the 1025 venturies have .040 more venturie effect & the carb is very well mannered compared to the 1050 even tho theres only 25 cfm in it. hence the reason i'm contemplating a dommy to gain the extra cfm if it will make my combo run stronger.
I'm gonna go out on a limb.. Use a NICE piece like a Pro-Systems 4500 and I would BET that you will see a gain. Did I tell you I am a dealer, but go where ya want for it cause not much there to make.
You can feel free to email me about it, be glad to help.
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Re: 4150-4500 gains?
[Re: rebel]
#51219
01/11/08 11:49 PM
01/11/08 11:49 PM
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Joined: Aug 2003
Posts: 43,180
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,180
Bend,OR USA
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I changed a TM7 intake with a 950HP carb. to a M1 4500 intake with a 1050 Dominator at the track and the car pick up .15 ET and 3 MPH with no tuning changes. That combo went .3 and 4 mph better with tuning., squirters help when they are the right size  I have changed 1050 Dominators at the track from a 9375 with all stock jets and squirters to a 8896 with stock stuff and saw a .13 loss and 1/4 mph loss, switch back and the ET and MPH came back
Last edited by Cab_Burge; 01/12/08 12:29 AM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: 4150-4500 gains?
[Re: Dartsport540]
#51222
01/12/08 11:29 AM
01/12/08 11:29 AM
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Joined: Jan 2003
Posts: 16,925
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Rebel, you got 512 CID and an Indy single plane intake. What size cam, CR, ET/mph and rpm do you run? If the rest matches the race theme, I think you will benefit. But I don't have any feel for the Demon RS carb. Although I think QuickFuel makes some good stuff I have never seen anyone compare them back to back, I know the Pro Systems carbs work well. DartSport505, Quote:
I ran the 505 with an 850 dp on it for the last 2 years. With a best of 9.45 et. Shifting at 6100 rpm, and crossing the traps at 6500rpm. I am hoping for a tenth or 2 increase in et?
That is close to my 511 setup but I pull a few hundred more rpm, I think you will benefit. I did some back to back runs at Norwalk in 2006 switching to the 10.00 class (trying to slow my car down). I took off my well tuned 1150 Dominator with 4150/4500 adaptor, and bolted on a good working, but not tuned (likely rich), 950hp with no spacer. The car slowed down 0.2 seconds in the 1/4 mile.
I think there were a couple factors to get that much, but 500+ CID race combos like more carb:- 1) The adapter was like a big carb spacer, helping this combo. So a 1 or 2 inch spacer with the 4150 would narrow the difference.
- 2) The 950hp carb was likely too rich, slowing it a little more.
Another comparison on a different day/track I swapped my Holley 1150 with a friend's ProSystems 1050 for back to back comparison. I ran the same with his carb, and his 499 ran the same with my carb. No difference, except a slight A/F ratio difference on my LM-1 meter.
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Re: 4150-4500 gains?
[Re: KOS]
#51224
08/21/09 06:04 PM
08/21/09 06:04 PM
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Joined: Jan 2003
Posts: 11,711
Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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I dont know how much steam you big block is making but on my high 9's smallblock i used to run that 1025RS carb. It worked awesome. One night i took it off and put a pro systems prepped 1000 4150 carb on the car and it knocked better than a 1/10 out of it. I put my new 1100 pro systems dominator on it and it did no more than match the 1025rs, as i had just bought it looking for a gain, i sold the 1025rs i had for everal years and continue to run the 1100 dominator to this day. Long story short, a trick 1000 hp slowed me down, a trick 1100 dominator MATCHED the 1025 race demon...this all on the same night testing at the track
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, 10.40 @127 1/4
1.41 best 60 foot
6.60 at 103.90 1/8
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Re: 4150-4500 gains?
#51226
08/21/09 09:04 PM
08/21/09 09:04 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
i currently run a 1025 race demon RS on my 400/512 combo, would i get a big gain if i fitted a 1050 dominator or would it be nominal? also in the past month 2 people i've talked to about carbs say you can get dominator carbs on a 4150 base?? i've done some nett surfing but can't find any info on this set up. is there such a carb or have these boys been smoking something thats stronger than the govt allows?? lastly if i was to change to a 4500 flange carb, are those promax adaptors the way to go? someone posted a pic of one of these adaptors the other week & they really look the part.
Yes and maybe... Yes, I very rarely use a 4150 on larger ci engine, never see them out perform a 4500.. Maybe, it will see gains w/ a 4150 to 4500 adapter, don't do that often anymore, I always use a 4500 manifold if at all possible, but when there wasn't much to choose from as far as manifolds, I think only a couple times did I not pick up w/ the adapter.
Even the bigger street stuff we build always gets a 4500. The 383/496 we just did got a 4500 and its a pure street car.
Eddie is that you 
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Re: 4150-4500 gains?
#51227
08/21/09 09:10 PM
08/21/09 09:10 PM
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Joined: Jan 2003
Posts: 465
Oconomowoc, WI.
Cudahlr
mopar
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mopar
Joined: Jan 2003
Posts: 465
Oconomowoc, WI.
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Fri Jan 11 2008 05:09 PM Was when Elvis posted that.
1968 Barracuda 360/727 11.20 @ 121 mph 421 rwhp
1985 Harley Sportster Bobber
2006 Ram 2500 sport - The Cudahlr
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Re: 4150-4500 gains?
[Re: Cudahlr]
#51228
08/21/09 09:17 PM
08/21/09 09:17 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
I Win
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I Win
Joined: Jan 2003
Posts: 32,394
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Quote:
Fri Jan 11 2008 05:09 PM Was when Elvis posted that.
so this thread is that old 
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Dominators flat out work in the right application and my 8082-3 2 circuit runs and idles great on my OFTEN driven street car. 
