Madman

Anyone have pictures of their holley carbs setup? I am going to be doing an install on one and I am just wanting to make sure I know which lines go where... especially the oil metering... I know I have to connect the rod to the pump, but I am not sure where the lines go. Anyway, if anyone has any pictures or instight it would be great to see them!

MIKE-P-28

iTrader: (1)

Any out of the box Holley is modified for the usage of an OMP, or at least if I remember reading that in one of Mazdatrix catalog. There drill places in the carb and insert nozle opening for the oil to be injected with the gas.. Unless things have changed since I read that and Holley now makes a factory fresh rotary carb? Anyone know ?

Acuspeed

No, I don't believe Holley makes any carb for a rotary. As far as I know, they all need to be modified some to work properly on the rotary.

If you have Racing Beats system, they use a modified 4160 and you 'T' the two oil metering lines together down by the omp, then slide the single oil metering line onto the nipple that is actually in the inspection port on the primary side of the carb.

813KR$

I dont think RB uses a 4160, I am pretty sure the 4160 is a 600cfm vac sec and RB uses a 465cfm. I wouldnt tap for the omp, I would Pre Mix! That is what I do Caster 4 oz to a gallon, RB suggests 3.5 oz a gallon. If this piece of **** server would let me post my pic it would be up a 1/2 hour ago, Damn gAy.O.L doesnt help much!

Rx7carl

4160 is a generic model, it comes in many CFM ratings. It is a 4160 style carb, not a 4150 style. You are correct, from the pics Ive seen, vac secs.

FB II

vac secs modified to be mechanical. racing beat claims they do ALOT of **** to them. i called them about it for i was almost gonna holley out my motor. WOOOO, starting to think i still should have i dunno, but anyways, they say they BORE OUT THE JET HOLES ???? the way he was talking you could never even think of using a normal holley. ???? oh well

Rx7carl

Well on the 4160 there is a metering plate for the secondaries instead of regular jets. SO youd have to drill the metering plate holes to enlarge the jets. Adding a metering block to make it like a 4150 would eliminate that problem.

racintang

Someone posted not to long ago to run 1oz per gallon. thats what I did. I havn't run the engine much since the mixture but could that have caused any damage. I have run it a total of about 30 mins since the mix change over. I was told to use a 100:1 mix,

I'm using Castrol super outboard oil.

1.3oz per gallon = 100:1 ratio
3.2oz per gallon = 40:1 ratio
4.0oz per gallon = 32:1 ratio

kettlman

iTrader: (2)

i ended up getting the injector connectors for a 13b and tapped them into my manifold. so i have both lines running into the engine like stock. looks sweet too.


late

813KR$

Holley 600 pic.

813KR$

I didnt mean 4 0z to 1 gallon! I meant 4 0z to 5 gallons! ! ! my screw up wasnt typeing what I was thinking. RB suggest 3.5 oz to 5 gallon. Running 1oz to a gallon wont mess anything up just run rich, personally when I ran 1 oz to 1 gallon I fouled plugs and had to watch for idleing to long, then when I did idle for a while I would have to clear out the gunk. Sorry for the miss post???

813KR$

I didnt mean 4 0z to 1 gallon! I meant 4 0z to 5 gallons! ! ! my screw up wasnt typeing what I was thinking. RB suggest 3.5 oz to 5 gallon. Running 1oz to a gallon wont mess anything up just run rich, personally when I ran 1 oz to 1 gallon I fouled plugs and had to watch for idleing to long, then when I did idle for a while I would have to clear out the gunk. Sorry for the miss post???

Still cant post the pic!!!! Tried many, many times!!!

813KR$

Sorry for the double post! This site is fcking with me!!!

alien_rx7

From a recent pre-mixing discussion:

https://www.rx7club.com/forum/showth...hreadid=225649

Scruch

I have no much picts of my new engine i am gonna swapping it in thise days.. but..
here can you see my holley.. maibe monday .. i will take some new picts of the engine swapped with holley =)

FD Racer

Yes it's true, racing beat does a lot to the holleys to make them work well on a rotary. I am finally getting around to making mine perfect on my setup. Even straight from racing beat it doesnt garantee the carb will be perfect for YOUR engine. The idle circuit on my metering block still needs to be drilled out some more, and I still want to experiment with a bigger primary jet...but the secondaries pull nice and strong all the way to 8500 rpm. I recomend doing the center pivot float bowls too, by the way. I can take some pics of my setup tomorrow...

Cloud

Wow...so many "holley-tards."

I really don't think RB does much to the 465cfm 4160 carb to make it "work" with the rotary. Enlarging the holes in the secondary metering plate is borderline stupid considering how easy it is to add a secondary jet plate (30 dollar kit from Scummit or Jegs), and everything else looks like typical Holley-fare.

My brother's SP12A car has the RB Holley kit out of the box, and runs rich, but quick. I dig it, big time...

Rx7carl

Did you read my post?

813KR$

FD Racer: What does drilling the idle circuit do? Does it make it idle better?

Does anyone know anything about velocity stacks for the 600? The only thing I have come across even similar, would be the substack from K&N, but Iam interested in something similar to the Weber style stacks. Also does anyone have any info about taping the air bleeds to make them adjustable?

gonzz

here is mine:
http://members.***.net/goncalves6/eng2.JPG

813KR$

All this idle chit chat, lets talk tech. What is done to your holley's and what are your theorie's behind what you are doing to them and what you are wanting to do to them? Or are you happy with the way it is and not planning to change anything?

With my set up, my best 1/8th mile time is 9.8 , so far. Anybody know what thiers is running?

FD Racer

when you are on partial throttle, and arent laying into it much, you actually run on the idle jetting alone. Right now my setup runs too lean on that circuit. Drilling it out more will give me better/smoother light throttle acceleration. After I get the idle circuit smoothed out I plan to mess with the primaries.
As far as engine idle, It may improve a bit after I'm done, but its a streetport so It'll never be perfect.

813KR$

Iam NOT concerned about smooth idle or partial throtle! Only W. O. T. ! ! ! My carb runs good enough for idle and partial throttle. Have you ever ran it on the track?

FD Racer

Yes I have. Believe me when I tell you that you simply cannot use the throttle as an ON/OFF switch between WOT and no throttle. I'm happy to hear that you are satisfied with your partial throttle, however I am not. You might be rich on the idle circuit whereas I am really lean. I want to smooth out the transition between the idle circuit to the primaries then to the secondaries. It's the difference between having the engine struggle/stumble a bit then pull vs. having the engine want to pull straight from the get-go. What would you rather have? I have no WOT throttle problems at all, it pulls hard all the way to 8500 without struggle.

FD Racer

I forgot you where talking about 1/4 mile...I have only taken it to road race tracks....If/when I go to the strip I'll be sure to post my times.