Holley Dominator Boosters
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From: All humans are vermin in the eyes of Guru VA
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Holley Dominator Boosters
Who makes the best boosters for a dominator? The one I just bought has stick boosters
.
I am going to be looking to buy some annular types. So far I can find:
Holley
AED
Quick Fuel
I am leaning towards AED, as they are local and I am going to be buying some other stuff from them.
I need the highest gain possible if that helps.
.I am going to be looking to buy some annular types. So far I can find:
Holley
AED
Quick Fuel
I am leaning towards AED, as they are local and I am going to be buying some other stuff from them.
I need the highest gain possible if that helps.
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To answer your original question. I am an odd duckling. I found an old thread posted by lars which got me interested, so now i want to play and see what happens. Yes I stuck things in electrical sockets as a kid too.
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If your thinking annular boosters are going to let you put a 1050 cfm carb on a 7000 rpm 350 rethink.
Last edited by Little Mouse; Oct 20, 2008 at 01:18 PM.
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Well I'm not even close to smart enough to think I could write books on holleys but the latest one I read claimed a 850cfm holley would feed a 454 big block at 100 percent VE to 8000 rpm. I did have a 850 double pump on a 454 with an old tarantula single plane and I was spinning it close to 8000 rpm.
If your thinking annular boosters are going to let you put a 1050 cfm carb on a 7000 rpm 350 rethink.
If your thinking annular boosters are going to let you put a 1050 cfm carb on a 7000 rpm 350 rethink.
I have a holley 650 and a weiand team g at my disposal anyway if it doesnt. and if it does work, Cool!
Last edited by Guru_4_hire; Oct 20, 2008 at 01:42 PM.
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So this is what I have found out. I have about 6 options for a dominator on a small block.
Single Plane:
Edelbrock Super Victor
Dart Single Plane
Brodix Single Plane
World Motown Single Plane
Offy port-o-sonic Single Plans
Divided Single Plane:
Offy 360 equa-flow
So here is my hypothesis:
If I can find an Offenhauser 5949 intake manifold, the cylinder should see about 60-70% of the carb at any given time. So the car should perform about like low profile single plane with 600-700cfm carb on it (there is a notch in the divider). Annular boosters just help the situation of being "slightly" too large for the cylinder actively drawing vacuum and should increase the throttle response.
FYI,
Here is the thread that got me interested.
http://forums.corvetteforum.com/showthread.php?t=803558
Single Plane:
Edelbrock Super Victor
Dart Single Plane
Brodix Single Plane
World Motown Single Plane
Offy port-o-sonic Single Plans
Divided Single Plane:
Offy 360 equa-flow
So here is my hypothesis:
If I can find an Offenhauser 5949 intake manifold, the cylinder should see about 60-70% of the carb at any given time. So the car should perform about like low profile single plane with 600-700cfm carb on it (there is a notch in the divider). Annular boosters just help the situation of being "slightly" too large for the cylinder actively drawing vacuum and should increase the throttle response.
FYI,
Here is the thread that got me interested.
http://forums.corvetteforum.com/showthread.php?t=803558
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Thats the fun of experimentation. I make no claim that it will work, only that I read a thread about it, found it interesting and now want to experiment to see what happens.
I have a holley 650 and a weiand team g at my disposal anyway if it doesnt. and if it does work, Cool!
I have a holley 650 and a weiand team g at my disposal anyway if it doesnt. and if it does work, Cool!
The last post you put up you were complaining about the costs for
push rods said you were on a limited budget. kind of doubt Lars was
running low 12s with 3.55 gearing 350, 2.20 low gear M21
may have been a light weight nova he was using.
Last edited by Little Mouse; Oct 20, 2008 at 02:12 PM.
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I am going to buy an Offy 360 degree manifold part number 5949. It is a divided single plane.
If not I will unload both. After I get done upgrading the dominator it will end up being a good deal for somebody if it doesnt work out.
If not I will unload both. After I get done upgrading the dominator it will end up being a good deal for somebody if it doesnt work out.
Last edited by Guru_4_hire; Oct 20, 2008 at 02:07 PM.
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So I bought this carb off of a guy who was trying to run it on his 377ci ford drag car, he said he could never get it right, so he swapped it for a 1000cfm 4150 carb and it ran great. So first thing I do is take it apart and see whats going on in the inside. No power valves at all, just plugs.
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For Fun you might look into CS carbs aerosol venturi's. Definitely different..but seem to work well.
How big of a small block? I used my 1050 Dominator on my old relatively mild 427 oval port and it kicked but. Back to back against an 850 Holley and a 750 Dominator wasn't even close.
JIM
How big of a small block? I used my 1050 Dominator on my old relatively mild 427 oval port and it kicked but. Back to back against an 850 Holley and a 750 Dominator wasn't even close.
JIM
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I don't mean to bum you out
So I bought this carb off of a guy who was trying to run it on his 377ci ford drag car, he said he could never get it right, so he swapped it for a 1000cfm 4150 carb and it ran great. So first thing I do is take it apart and see whats going on in the inside. No power valves at all, just plugs.
My opinion from seeing some dyno sheets on different manifolds run on the same engine is steer away from that divided single plane and run one of the other manifolds.
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Dominator will work on a small block on a dyno or at the drag strip, I wouldn't want to try and tune one to run on the street on top of mild small block, isn't worth the headache IMHO 
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For Fun you might look into CS carbs aerosol venturi's. Definitely different..but seem to work well.
How big of a small block? I used my 1050 Dominator on my old relatively mild 427 oval port and it kicked but. Back to back against an 850 Holley and a 750 Dominator wasn't even close.
JIM
How big of a small block? I used my 1050 Dominator on my old relatively mild 427 oval port and it kicked but. Back to back against an 850 Holley and a 750 Dominator wasn't even close.
JIM
Those look cool. If I get some money again. I will definitely give them a try.
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but the 8896 is a 3 cicuit Dominator which tend to run FAT even on the most radicle of motors. For your experiment a 2 curcuit 8082 would serve you way better surprisingly they are relatively easy to tame. I'd stick with the Holley boosters. Here is a good source of Holley tuning secrets http://www.innovatemotorsports.com/forums/
My opinion from seeing some dyno sheets on different manifolds run on the same engine is steer away from that divided single plane and run one of the other manifolds.
My opinion from seeing some dyno sheets on different manifolds run on the same engine is steer away from that divided single plane and run one of the other manifolds.
But your right, the 2 circuit is supposed to be better than the 3 circuit for small motors.
http://www.chevelles.com/forums/showthread.php?t=235115
All is not lost, franken carb
I will get a set of holley boosters then. They are the cheapest option anyway.
Last edited by Guru_4_hire; Oct 21, 2008 at 07:47 AM.
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Things I know I am going to have to change:
1.) Boosters - so far holley annulars are recommended
2.) Main Jetting
3.) Accelerator pumps to 30cc as well as the arms
4.) Install adjustable air bleeds
5.) I found an article that showed which orfice on the metering block to put wire into or I could spring for a pair of billet adjustable metering blocks (probably the best option)
6.) Power valves (definitely primary, dont know about secondary)
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You'll probably want to play with restricting the idle transfer slots. It helps a lot *keeping it clean*.
My 9375 was a 3 circuit. I ended up killing intermediate on primary side...but left it functioning on secondary. Added a PV to primary, used *soft progressive linkage*, dropped primary jetting and that's really about it.
There are some guys who seem to make the 3 circuits work on the street.....but it takes some work. The vast majority are terrible. I did see/hear a really nice running 3 circuit Demon last weekend on a 548...but he had done a LOT of work. Most that say they are still using them on primary side have basically made them in effective by pulling air bleeds out or just making them huge.
Good luck!
JIM
My 9375 was a 3 circuit. I ended up killing intermediate on primary side...but left it functioning on secondary. Added a PV to primary, used *soft progressive linkage*, dropped primary jetting and that's really about it.
There are some guys who seem to make the 3 circuits work on the street.....but it takes some work. The vast majority are terrible. I did see/hear a really nice running 3 circuit Demon last weekend on a 548...but he had done a LOT of work. Most that say they are still using them on primary side have basically made them in effective by pulling air bleeds out or just making them huge.
Good luck!
JIM
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You'll probably want to play with restricting the idle transfer slots. It helps a lot *keeping it clean*.
My 9375 was a 3 circuit. I ended up killing intermediate on primary side...but left it functioning on secondary. Added a PV to primary, used *soft progressive linkage*, dropped primary jetting and that's really about it.
There are some guys who seem to make the 3 circuits work on the street.....but it takes some work. The vast majority are terrible. I did see/hear a really nice running 3 circuit Demon last weekend on a 548...but he had done a LOT of work. Most that say they are still using them on primary side have basically made them in effective by pulling air bleeds out or just making them huge.
Good luck!
JIM
My 9375 was a 3 circuit. I ended up killing intermediate on primary side...but left it functioning on secondary. Added a PV to primary, used *soft progressive linkage*, dropped primary jetting and that's really about it.
There are some guys who seem to make the 3 circuits work on the street.....but it takes some work. The vast majority are terrible. I did see/hear a really nice running 3 circuit Demon last weekend on a 548...but he had done a LOT of work. Most that say they are still using them on primary side have basically made them in effective by pulling air bleeds out or just making them huge.
Good luck!
JIM
The next rabbit hole I am going to run down is the 2 circuit conversion with a pair of 4150 metering blocks. I do have a 750cfm DP I bought a lot of the internal upgrades for. So I can cannabilize the heck out of it. Luckily I have a "den" so my wife doesnt get mad about 2-3 carbs disassembled all over my floor.
What is soft progressive linkage?
How did you kill your intermediate circuit?
What is the difference between the soft progressive linkage and the soft progressive linkage?
It appears that the best way to kill or restrict the intermediate circuit is to drill and tap the main boxy and insert some form of set screw.
Also the appropriate holley booster for me would be the 34-36 booster kit. 46 bucks from holley direct.
Last edited by Guru_4_hire; Oct 21, 2008 at 10:30 AM.