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Re: Dominator tunning
[Re: Quicktree]
#464428
09/10/09 11:33 PM
09/10/09 11:33 PM
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Joined: Dec 2008
Posts: 1,200
UK
602heavy
pro stock
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pro stock
Joined: Dec 2008
Posts: 1,200
UK
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Just remember to fit the two circuit blocks as well as the gaskets , if you don't want to mess around with gaskets & metering blocks just block off the intermediate circuit by plugging the 'tube' that exits into the throttle bore area , or just plug the 'tube' from the main body side , this is a straight tube so you can probably plug it with maybe a tooth pick , can be drilled out easily afterwoods if necessary.
Last edited by 602heavy; 09/10/09 11:42 PM.
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Re: Dominator tunning
[Re: Leigh]
#464430
09/11/09 06:01 AM
09/11/09 06:01 AM
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Joined: Jan 2003
Posts: 5,991
Anoka County, MN
Leigh
master
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master
Joined: Jan 2003
Posts: 5,991
Anoka County, MN
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Here is some info
"The 3 circuit carb is VERY helpful in transbrake cars, as this is the circuit to tune, to make the car come up on the brake cleanly. If it stumbles and coughs coming up on the brake, you open up the intermediate bleeds a little to lean it out. If the circuit is lean, the car usually just shuts off when you mat it and this needs a smaller bleed to richen the circuit. This is just a very handy tuning tool, as weather, converter changes and other elements can change how the car comes up on the brake and this keeps you from having to make major changes elsewhere.... As Al said, the 8896 is a good carb but I like the 9375 myself. I don't like a power valve in any race carb and the 9375, which is listed for a 2x4 app, has no power valve and is a touch leaner than the 8896.
Monte"
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Re: Dominator tunning
[Re: Leigh]
#464432
09/11/09 06:58 AM
09/11/09 06:58 AM
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Joined: Jan 2003
Posts: 32,394
Quicktree
OP
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OP
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Joined: Jan 2003
Posts: 32,394
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Quote:
White Postion 1 = 18cc 2= 23cc.
Yellow position 1 = 39cc.
From Urich and Fisher 1976.
thanks Leigh  I knew the white was smaller just didn't know how much. wont changing to a white cam reduce the rich condition?
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Post deleted by Defbob
[Re: challenger451ci]
#464434
09/11/09 04:18 PM
09/11/09 04:18 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Re: Dominator tunning
[Re: challenger451ci]
#464435
09/11/09 04:39 PM
09/11/09 04:39 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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Quote:
I have an 8896 3-circuit converted to E85 with a Quick Fuel kit. The intermediate circuit is PIG rich. I've gone from 0.063" bleeds to 0.098" bleeds and it's still FAT, 0.68Lamda(10:1 A/F) under part throttle. Can I play around with the feed restrictors in Quick fuel billet metering blocks to clean up the intermediate circuit?
This is how my bleeds are set up on my 8896-2 3 circuit
from QF(they did my carb conversion to E-85)
outer bleed (which I believe is idle)... #42
middle (intermediate I believe).... #53
inner (high speed I believe).... #8
this is with 96 jets all around, No PV
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Re: Dominator tunning
#464436
09/11/09 04:44 PM
09/11/09 04:44 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
OP
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OP
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Joined: Jan 2003
Posts: 32,394
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Quote:
Quote:
I have an 8896 3-circuit converted to E85 with a Quick Fuel kit. The intermediate circuit is PIG rich. I've gone from 0.063" bleeds to 0.098" bleeds and it's still FAT, 0.68Lamda(10:1 A/F) under part throttle. Can I play around with the feed restrictors in Quick fuel billet metering blocks to clean up the intermediate circuit?
Did you try switching to smaller jets? You're operating on the main jets at part throttle.
I just dropped my main jets from 93 square down to 91s and it improved 100%. I haven't had time to do the gasket swap deal yet but plan to do that. I will figure it out, will just take a little experimenting. I will probably end up getting the quickfuel billet metering plates.I would love to do the E85 deal but it's hard to find around here 
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Re: Dominator tunning
[Re: dc426]
#464438
09/11/09 04:58 PM
09/11/09 04:58 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
OP
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Quote:
Tony it's been my experience that they need to be jetted in the 86-89 range. I've had three dominators total on my motor.
DC
I'll drop down a few more, which dom are you running?
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Re: Dominator tunning
#464439
09/11/09 05:08 PM
09/11/09 05:08 PM
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Joined: Mar 2008
Posts: 292
NY
challenger451ci
enthusiast
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enthusiast
Joined: Mar 2008
Posts: 292
NY
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Quote:
Quote:
I have an 8896 3-circuit converted to E85 with a Quick Fuel kit. The intermediate circuit is PIG rich. I've gone from 0.063" bleeds to 0.098" bleeds and it's still FAT, 0.68Lamda(10:1 A/F) under part throttle. Can I play around with the feed restrictors in Quick fuel billet metering blocks to clean up the intermediate circuit?
Did you try switching to smaller jets? You're operating on the main jets at part throttle.
I'm at around 0.82 - 0.86 (12.0 - 12.6 A/F) Lamda at full throttle. It makes more power on the lower end of that scale with E85, and I'd like to fatten it up a bit more to see how much more, but can't stand to drive it around because of the intermediate circuit being so fat. I've tried going from 0.028" (came with kit) to 0.020" high speed bleeds to fatten up the big end without having to add more jet. This helped some, but it still stays in the low to mid 0.8's lamda at full throttle.
Mr. P body, that #8 high speed, is that 0.008"??? WOW! I guess I can keep going down on the high speed bleeds to fatten it up without adding more jet??
Sorry to hijack this thread, but my situation is pretty similar, so I thought I'd ask! Thanks!
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Re: Dominator tunning
[Re: MR_P_BODY]
#464441
09/11/09 06:05 PM
09/11/09 06:05 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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removing the intermediate bleed completely will lean it out.
Tony, i looked at the brown cams i have and none will fit a dom without being made to fit
Gen 3 power 6.22@110, 9.85@135
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performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: Dominator tunning
[Re: sixpackgut]
#464443
09/11/09 07:47 PM
09/11/09 07:47 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
OP
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OP
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Quote:
removing the intermediate bleed completely will lean it out.
Tony, i looked at the brown cams i have and none will fit a dom without being made to fit
I was going to put a bigger bleed in it but I may just remove it and see what happens. summit sent me the wrong white squirters today I really don't think it's far off. bringing down the main jets helped.
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Re: Dominator tunning
[Re: Quicktree]
#464445
09/11/09 08:05 PM
09/11/09 08:05 PM
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Joined: Dec 2004
Posts: 10,555
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,555
Rittman Ohio
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This is an interesting thread I just installed a 4150 metering block and gasket on my 9375 primary side with 4.5 power valve and it seems crisp and clean idle to intermediate circuit.I don't have any AF readings but just looking at the plugs says I am moving in the correct direction.Some of those Chevy sites have good info on Dominator tuning  Gus 
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Post deleted by Defbob
[Re: fourgearsavoy]
#464446
09/11/09 08:57 PM
09/11/09 08:57 PM
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Anonymous
Unregistered
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Anonymous
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Re: Dominator tunning
#464447
09/11/09 08:58 PM
09/11/09 08:58 PM
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Joined: Jan 2003
Posts: 32,394
Quicktree
OP
I Win
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OP
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Joined: Jan 2003
Posts: 32,394
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Quote:
Stop chasing your tail and send your carb to Quick Fuel and they will tailor the fuel curve to your engine.
thats no fun 
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