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how come there are only 2 different pump cams for a dominator? yellow and white are the only 2 availble. anybody used a dom on a small cube motor?

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How small Tony... I have a 8896 1050 on a 405ci

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mine is 366ci, what pump set up are you running? squirter size etc?

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I'd have to look at my other dom tomorrow... the one
on the car now is a E-85 dom
What kind of problem are you having

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brown cam is smaller pump for a Dom 50cc pump

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mine is 366ci, what pump set up are you running? squirter size etc?

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I'd have to look at my other dom tomorrow... the one
on the car now is a E-85 dom
What kind of problem are you having

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brown cam is smaller pump for a Dom 50cc pump

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there is no brown cam for a dom. the shaft on a dom is bigger than a 4150. it has nothing to do with the pump size.

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mine is 366ci, what pump set up are you running? squirter size etc?

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I'd have to look at my other dom tomorrow... the one
on the car now is a E-85 dom
What kind of problem are you having

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the idle circuit is perfect. pump shot is to long I think. smaller squirters make it worse makes it load up. I have the white cams coming in. the yellow is the largest.

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Tony, I have yellow cams on mine(both sides)

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mine is 366ci, what pump set up are you running? squirter size etc?

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I'd have to look at my other dom tomorrow... the one
on the car now is a E-85 dom
What kind of problem are you having

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the idle circuit is perfect. pump shot is to long I think. smaller squirters make it worse makes it load up. I have the white cams coming in. the yellow is the largest.

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Tony, I have yellow cams on mine(both sides)

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Unless its a 750 Dominator, that carb is way too big for that little bracket motor. Try a 750.

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duh you think

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Unless its a 750 Dominator, that carb is way too big for that little bracket motor. Try a 750.

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WOW.... and we have guys on here with about the same
CI and have 2 1150 doms on them... my 405 has run quicker
and faster with every larger carb I've put on it

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Unless its a 750 Dominator, that carb is way too big for that little bracket motor. Try a 750.

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WOW.... and we have guys on here with about the same
CI and have 2 1150 doms on them... my 405 has run quicker
and faster with every larger carb I've put on it

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I'm busting Tony's chops. Now I've busted yours.
BTW, you're right, its impossible to overcarb any smallblock.

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Don't knownhow any of you guys run the 8896 (3 circuit) without modifications , got four of these & every one of em runs pig rich on a 605" , i've since modified them to a 2 circuit , can't see the point in restricting the intermediate circuit to clean it up considering the main well is restricted anyhow , who gets good results from the 3 circuit dommies , OK they may run but they ARE pig rich.

Not starting a debate as this has been covered untold times , just asking who is happy with them.

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I havent had any problem with my 8896.... been on
my 405ci for 4 years(1 was converted to E-85) the
other 8896 is setting in my trailer... it ran fine
but I dont do alot of cruising... its mainly idle
or WOT with some cruising in the pits

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Don't knownhow any of you guys run the 8896 (3 circuit) without modifications , got four of these & every one of em runs pig rich on a 605" , i've since modified them to a 2 circuit , can't see the point in restricting the intermediate circuit to clean it up considering the main well is restricted anyhow , who gets good results from the 3 circuit dommies , OK they may run but they ARE pig rich.

Not starting a debate as this has been covered untold times , just asking who is happy with them.

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Don't knownhow any of you guys run the 8896 (3 circuit) without modifications , got four of these & every one of em runs pig rich on a 605" , i've since modified them to a 2 circuit , can't see the point in restricting the intermediate circuit to clean it up considering the main well is restricted anyhow , who gets good results from the 3 circuit dommies , OK they may run but they ARE pig rich.

Not starting a debate as this has been covered untold times , just asking who is happy with them.

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Is it rich at full throttle or just part throttle? Mine was very rich for part throttle and needed a PV in the front and work on the metering blocks as well as lot's of air bleed tweaks to clean up. I wouldn't have known what to do but Dwayne (fast68plymouth) did

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Don't knownhow any of you guys run the 8896 (3 circuit) without modifications , got four of these & every one of em runs pig rich on a 605" , i've since modified them to a 2 circuit , can't see the point in restricting the intermediate circuit to clean it up considering the main well is restricted anyhow , who gets good results from the 3 circuit dommies , OK they may run but they ARE pig rich.

Not starting a debate as this has been covered untold times , just asking who is happy with them.

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Is it rich at full throttle or just part throttle? Mine was very rich for part throttle and needed a PV in the front and work on the metering blocks as well as lot's of air bleed tweaks to clean up. I wouldn't have known what to do but Dwayne (fast68plymouth) did

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Don't knownhow any of you guys run the 8896 (3 circuit) without modifications , got four of these & every one of em runs pig rich on a 605" , i've since modified them to a 2 circuit , can't see the point in restricting the intermediate circuit to clean it up considering the main well is restricted anyhow , who gets good results from the 3 circuit dommies , OK they may run but they ARE pig rich.

Not starting a debate as this has been covered untold times , just asking who is happy with them.

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Is it rich at full throttle or just part throttle? Mine was very rich for part throttle and needed a PV in the front and work on the metering blocks as well as lot's of air bleed tweaks to clean up. I wouldn't have known what to do but Dwayne (fast68plymouth) did

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what did you do other than adding a PV? and what did your jetting end up being?

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I didn't make the Mod's, Dwayne did. Inside the metering block there is some air bleeds that were added. I think it was to restrict fuel flow for the intermediate circuit. Jetting ended up staggered. I recall I was 92 sq with no PV and somewhere around 87 and 98 after the PV was added but don't quote me on that. It also took lot's of dinking around on the dyno messing with air bleeds to get the part throttle A/F ratio correct at part throttle. Don't even ask where we ended up, I recall I didn't have what it needed so some were drilled out to make what it needed. Dwayne is the Da Man!

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I won't bore you with the mods i carried out to clean it up but it now runs crisp & clean throughout the rpm range , if you jet the intermediate circuit down then the main circuit won't flow enough fuel , kind of defeats the object don't you think? , as has already been said numerous times , these 3 circuits are maxed out over a 94/96 jet (main well restricted) , i'm talking real world here as i've tried a few of these 3 circuit dommies , they load up @ idle/transition , what's the point of trying to clean the plugs on the start line? , are you using a 3 circuit Quicktree? , if so i don't think a pump cam swap will get you sorted.

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yes it's a 8896-2

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If i remember correctly these 8896-2s come out the box with 6.5 PVs back & front with 88 squared jetting , i removed the sec PV with MJs @ #92P/100Sec , i also fitted 2 circuit blocks with modifications to the main well, booster pins , cross over channel...........................

I would bet any 3 circuit out the box will run rich on 99% of motors.

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yes it's a 8896-2

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If i remember correctly these 8896-2s come out the box with 6.5 PVs back & front with 88 squared jetting , i removed the sec PV with MJs @ #92P/100Sec , i also fitted 2 circuit blocks with modifications to the main well, booster pins , cross over channel...........................

I would bet any 3 circuit out the box will run rich on 99% of motors.

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this one had a PV in the front. I removed it and square jetted to 93s. I may have to go back and put the PV back. I want to try the white cam first just to see what happens. I reduced the maine to 91 square. looks like it will take a little work to dial it in.

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Good luck

Just for fun (5 minutes work) , change out the 3 circuit metering block gaskets for 2 circuit & swap the intermediate/IAB bleeds over , bet it runs like a top.

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I would bet any 3 circuit out the box will run rich on 99% of motors.

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Unless you make mods to the metering block it be rich at part throttle. You can get idle circuit and WOT working with jetting and air bleeds, part throttle is another story. Squared and no PV will never work for part throttle. Mine is an 1150 3 circuit.

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Remove the metering block to main body gaskets & go fit a set of gaskets off a two circuit carb , (4150 gasket will do) , what this does is block off the intermediate circuit , reason being the two circuit has the hole already blocked off , no other mods are needed appart from removing the idle air bleed to the intermediate blkeed location , you have got the screw in bleeds?

It will just save you a bunch of time messing with the pump cams , most it will take is ten minutes , you can always put it back to baseline setting afterwoods.

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Dominator conversion

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Interesting article , but to save Quicktree all the drilling & jetting with that modification he can just change the gaskets for now & that will show the problem lies in the intermediate circuit , tis quick & easy with no drilling , when he's happy he's nailed the overly rich situation he can then cut & drill the carb.

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yes it has screw in bleeds. I 'll try it. so you say to swap the idle and intermediate bleeds?

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Just remove the 4 outboard bleeds & move them to the middle , in effect you will be removing the middle bleeds & replacing them with the outer bleeds , nothing will have been done to the carb that can't be put back to baseline settings again.

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yes it has screw in bleeds. I 'll try it. so you say to swap the idle and intermediate bleeds?

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Just remove the 4 outboard bleeds & move them to the middle , in effect you will be removing the middle bleeds & replacing them with the outer bleeds , nothing will have been done to the carb that can't be put back to baseline settings again.

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I'll sure try it, nothing to lose.

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White Postion 1 = 18cc 2= 23cc.
Yellow position 1 = 39cc.
From Urich and Fisher 1976.

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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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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?

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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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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?

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Did you try switching to smaller jets? You're operating on the main jets at part throttle.

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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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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

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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?

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Did you try switching to smaller jets? You're operating on the main jets at part throttle.

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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

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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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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

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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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Stop chasing your tail and send your carb to Quick Fuel and they will tailor the fuel curve to your engine.

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thats no fun

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wont swapping the intermediate and idle bleeds change the idle mixture?

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Stop chasing your tail and send your carb to Quick Fuel and they will tailor the fuel curve to your engine.

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Im kinda lazy so thats what I did called them told them what I had they sent me a carb I bolted it on and went racing it may be a little rich but I havnt messed with it yet since its been consitent

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wont swapping the intermediate and idle bleeds change the idle mixture?

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This is the whole point of swapping the bleeds over , the intermediate air bleed will now be the idle air bleed when you swap the 3 circuit blocks for the two circuit.

Down sizing main jets to cope with a rich part throttle (intermediate) will hurt the performance higher in the RPM range , if the motor runs rich @ part throttle duie to the intermediate circuit then ditch it , there's certain applications whereby a 3 circuit would be beneficial , most on here don't fall in that catogory.

The intermediate circuit will flow fuel well before main metering , going smaller on MJs will help regards part throttle stumbles but in no way will it clean it up , i'd rather have clean plugs on the start of the run @ clean plugs when pulling into the pits , the 3 circuit won't allow this.

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wont swapping the intermediate and idle bleeds change the idle mixture?

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This is the whole point of swapping the bleeds over , the intermediate air bleed will now be the idle air bleed when you swap the 3 circuit blocks for the two circuit.

Down sizing main jets to cope with a rich part throttle (intermediate) will hurt the performance higher in the RPM range , if the motor runs rich @ part throttle duie to the intermediate circuit then ditch it , there's certain applications whereby a 3 circuit would be beneficial , most on here don't fall in that catogory.

The intermediate circuit will flow fuel well before main metering , going smaller on MJs will help regards part throttle stumbles but in no way will it clean it up , i'd rather have clean plugs on the start of the run @ clean plugs when pulling into the pits , the 3 circuit won't allow this.

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I will try it tomorrow, didn't have time today.

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I ran the 8896 hp with the intermediate circuit blocked off , problem was it would'nt fatten up over 94/96 jets , as most will know the idle well won't flow much over this jet size in any case , the intermediate circuit is equivalant to around 8 jets sizes , my understanding is if you restrict the intermediate circuit you add to the lean issues @ full throttle , this is the reason i went the 2 circuit route & modified the fuel/emulsion circuits , picked up some & made power up to a 100 MJ , adding a PV to the 3 circuit blocks won't help regards fattening it up when jetting over 96 , the main well just won't flow enough fuel out the box.

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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

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Dominator conversion

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Hey, thanks for that link. I'll be converting my 8896. As a 3 circuit, it's useless the way it is. A $700 paper weight.

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I ran the 8896 hp with the intermediate circuit blocked off , problem was it would'nt fatten up over 94/96 jets , as most will know the idle well won't flow much over this jet size in any case , the intermediate circuit is equivalant to around 8 jets sizes , my understanding is if you restrict the intermediate circuit you add to the lean issues @ full throttle , this is the reason i went the 2 circuit route & modified the fuel/emulsion circuits , picked up some & made power up to a 100 MJ , adding a PV to the 3 circuit blocks won't help regards fattening it up when jetting over 96 , the main well just won't flow enough fuel out the box.

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If you decided to not run the intem circuit, why not just buy a two circuir dominator?
No wonder it was lean at WOT blocking off the Intem circuit.
Loosing the PV helps the ease of tuning, your removing variables to deal with over all IMO.

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Why spend the extra $$$$ on a 2 circuit when i had the 3 circuit to begin with? , i run a front PV on the street & remove @ the track for obvious reasons.

We all have different opinions on this which is a good thing.

If you remove the intermediate air bleed you may just as well block the intermediate cuircuit all together , if you run a big inch motor the 3 circuit blocks won't flow enough fuel as you've just jetted down 8 sizes by removing Intermediate bleeds , the 2 circuit mod works for me as i run a 605" motor which needs well over a 96 MJ.