Exactly what the title says...

~T.J.

 

If you mean the Holley carbs, I know for a fact that the airbleeds are modified.

 

Yeah peejay, just wanted to say thanks with the few questions I had. The RB modded Holley is now in my car....all I can say is WOW! That bastard wants to go and go some more! Woohoo!!

I'll start a new post in a few days with pics that I want to share with everyone.

 

lol yeah I'm going over those pics you sent me with a fine-tooth comb

 

If you need some more let me know. I have some more put haven't had the time to upload them to my site yet.

It was funny, once everything was hooked up. I started the car and the thing just starts right up and idles at 5k. LOL...it's now idling at 750-800 which is where I want it. You can hear the air that thing sucks over my exhaust(which isn't a easy thing to do). Another thing that is awsome you can just see that bad boy not just trickle or spary in gas you see it like a freaking water fall!!

 

Haha, maybe I should have kept that setup and fixed it up eh? lol j/k

Actually I am thinking of getting myself another Holley set up soon, hence the question. Ok, more specifically, whats the difference between the standard port and street port carbs? They both have the same CFM's, so whats differernt? My plan is to buy one, throw it on my car, and then when I get my street ported engine done, I want to trow it on there too, so which setup should I be looking at? Also, later plans include a turbo...If that matters...

~T.J.

 

It's all mine! *insert evil laughter*

 

They've been modified to work on a seperate runner manifold. Regular Holleys work on open plenum manifolds.

 

but if i got a normal holley wouldn't it still work?? they've got a mechanical secondaries no choke 450cfm carb for only $199 at summit, and my buddie has a rb manifold just laying around. rb wants $533 for just the carb and thats fricking rediculus. what are my options for other carbs. cause it i remember correctly the holley RB uses its a spread bore and you could easily get a plate that would change it to square bore and you could use any carb you wanted right??

 

You can use a normal holley if you cut channels between the two rotors' passages. A fellow rotorhead was running an Edelbrock carb on a wicked 12A and he was having problems with running extremely rich at higher RPM. I told him to cut channels between the two rotors... he was VERY pleased with the result

If you don't want to alter the RB manifold, then just get a 4-hole spacer for $20 and modify that. The airflow itself doesn't need to run between the channels, it's just the vacuum signal to the boosters that needs to be altered. Holley and other "traditional" carbs are designed to work with a constant flow of air and therefore a constant vacuum signal, whereas manifolds that separate the two rotors (basically every one available for rotaries including stock) have a very staccato vacuum signal since the airflow is always starting and stopping. At high RPM the Holley carb would see migh higher vacuum signal than it was designed for and it runs very rich, so you cut two channels between the two rotors to even things out.

 

Time for a picture or diagram, peejay, of what you're talking about. How big? Connecting primary and secondary? Primary with primary and secondary with secondary? I was curious about this, too. Maybe a link to the old site where you guys beat up on this subject so many moons ago...

 

Primary to primary, secondary to secondary.

Or, just put a "one hole" open spacer on there.

 

Just a garden variety common plenum 1/2" spacer? Really? And that's all it would take to run a 500 cfm Edelbrock? The next car that my RP streetport goes into will be sporting one, then....thanks!

 

now in lame-mans terms just an open spacer like the ones that are for just moving the carb off the intake manifold?? is that all i'd need?? or would i need linkage also where would i get that stuff?? and a throttle cable mounting spot????
one like this???

 

would /\ that work peejay??

 

well would a spacer like that one work??
ttt

 

sure!

 

shweed!!! thanx now its time for my 1050cfm demon carb to go on there!!!!
mu hu ha ha haaaaaaaaa

 

And in the next episode, Hyper4mance2k learns the trie meaning of "overcarburetion"

 

As Dan the Post Man beats him out of the hole in his stock Yugo to the 60 ft lights!

 

not if i drop the clutch at 13k ehhh???

 

Lesson #2.... Apex seal replacement.....




Jeff

 

lol

yeah a big ol' Dominator sized carb would probably *start* working at about 5-6...

I saw a modified carb on a Cobra replica, forgot who did it (it wasn't BG or Demon, it was some company I'd never heard of). Apparently it started life as your typical 850cfm double-pumper but the venturis were so bored out that they might as well have been perfectly straight. But what really caught my attention were the boosters... they weren't dogleg or annular boosters, they were just flat-ended tubes sitting perpendicular to the venturis! I think they are called "aerosol" boosters, they rely completely on the airflow going past the ends to atomize the fuel.

Cobra ran 10's, no spray, with traction problems, so apparently they work quite well

 

Anyway, If I buy a SP carb setup from RB, and then put it on my stock port 12A, is that a bad idea? Whats gonna happen?

~T.J.

 

You will have a better carb with more potential HP in the long run. All it needs to be is properly tuned and jetted.