Single vs: dual plane intake

Anyone have any experience wheeling w/ a single plane intake? Is there a major differance compared to a dual plane intake? The only thing I can find for my TBI swap is an Weiand single plane intake.
Has anyone ever swapped a single plane intake into a Jeep and wheeled it?

 

I wouldn't think you'd want to sacrifice the lower end torque for higher end torque. It may not be as noticeable with fuel infection, but I've never put either to practice on the trail. What is your predominant wheeling environment?

 

Muddy/Rocky trails in the Pacifice Northwest. I actually live about 20 min from where Petersons did their 1st adventure series. 8)
I've never used a single plane intake so I thought I'd ask.

 

the holes are too big for a standard 2bbl. It came with an adapter for a 4bbl manifold and I figured that would be better than trying to make my own adapter for a 2bbl manifold.

 

room to cut'm bigger????

 

Remember, our stock :v6: manifolds are single plane.

 

Remember, our stock manifolds are single plane

Good point, never thought of that. I wonder if the 4bbl single plane would make much of a differance? :? Now I'm leaning more toward the Weiand intake. I guess I've got a couple of days to decide.

 

Weiand intake are good. I feel no reason to go to a 4bbl, but I would like a Weiand, just in case.

If you find new ones (I have not), let me know.

 

Summit Racing has them. I think it was 150+ or so. I don't plan on a 4bbl, I'm just using it to adapt the Pro-Jection.

 

Steve: Just my wild thinking with nothing to back it up, but considering our 50+ lb flywheels and the inherent low end torque of the :v6: , maybe they use the single plane to get a little top end out of it. I don't know if they used the same manifold on the car engines, but I think they did.

 

msbweiland: I searched there before and again. Don't show it on their on-line cataloge, at least I couldn't find it. But good to know that someone carries it.

 

Under their search type "buick intake weiand". It'll bring up the intake. I'm going to call make sure first but it says the intake will fit the 64-67 225's. :twisted:
I may give it a try and see what happens if it'll fit. Hey, it's only $.

 

edelbrock makes one for the later model heads (the larger intake ports/runners). if you are running the later heads, that intake would slide right one (and if i remember correctly, it was a dual plane 4 bbl. i havent looked at it in a while)
its listed under even fire along with the cam pagkage.

 

Buick 231 V6 Even Fire
Performer Buick V6 (idle-5500 rpm)

Designed for 1979 and later street 231/252 c.i.d. (252 c.i.d. 1980-84 only) Buick V6 engines with late-model cylinder heads. Manifold will not fit pre-1979 engines. Manifold not equipped with EGR. Not compatible with C-3 and C-4 electronic fuel management systems. See Power Package Graph.

Performer Buick V6 (non-EGR) .....#5486

 

I've used both types (Buick 252 ci 4bbl single plane, Holly Dominator, Edlebroc Performer, & stock Buick V6). By a wide margin the dual plane Edlebroc Performer worked best for the RPM ranges & altitudes I use. Each set-up will vary a bit depending on carb/FI, etc. but the single plane aftermarket manifolds are for high RPM's, the stock V6 manifold, athough single plane is essentially designed for all-around use, & the dual plane after-market designs are probably similar to the stock versions except that they allow you to put on a 4bbl carb or fuel injection & still work in the widest RPM ranges.

 

I have a Weiand sitting on my shelf. I put a stocker back on when I couldn't get/find a decent 4bbl for my application (225 - mild cam - decent off road performance on hills and washboard). I hope to eventually mate the 2bbl I'm running to that manifold, just need to do it with very little height added due to the tight flattie engine bay. The runners on the Weiand are volumonous (sp?, big!) compared to the stocker. Since I changed the carb and manifold at the same time I'm not sure how much difference putting the weiand back on will make - but I think it will be fairly significant. I had no lack of bottom end with the Weiand/Holley, and much more mid and hi-end (I'd define hi end on this engine as over 3200 ish RPM ).

Bob

 

I'm going to wait for the dual plane. I have a few friends looking for me but I'll probbably end up waiting.