hey CAPTAIN...what you call XRAM today, we called RAMLOG in the 60s and their very streetable. and some do have fuel to both banks. to much cam on any street gear won't work! and you CAN get a smaller cam these days. and believe me the XRAM is a real killer, maby 90% of a tunnel ram! just have to know what your doing. call me POP...or the old FART!
The M/T crossrams had a cross over. The Edelbrock (and Weiand I believe) has an 1/8th pipe threaded port on the back of each carb bank for a small line to be attached...for equalization?
Years ago I ran one on my 289 with 500 Holleys (5:43 gears and 4-speed) and did what you said about the spacers - had to use -12 lines before I could tell any difference and also tee'd a pcv valve in there. Veryyyyyy cold natured. But, I was willing to put up with a lot 40 years ago that I won't now. ( a/c, power steering, running dependably, etc.)
________________________________________________________________ I was working in the speed equipment business way back when..... I seem to remember an intake supposedly designed by Smokey, produced by Edlebrock called the Smokey Ram. If memory serves me well, it looked like a cross ram manifold limited to a single carb.
Yep....thats the one I was refering to.....had a photo of him with the old straw hat on chewing on his pipe.... Yea....I'd met him a few times.....he was a character....and didn't like to be around alot of folks, he's built this engine at his shop for a race car and run it in and said....."I don't know what kinda toilet paper they use where these folks come from, but we're gonna find out!" I almost lost it then and there....I didn't quote him exactly word for word....I can't here on the boards....but you get the picture.......
________________________________________________________________ The early tunnel rams like Ridge Runner Ram and early Edlebrock was basically a shoe box on top of tubes and fuel would puddle up in the box lower floor. If you had a backfire....boom...you had an explosion. I only experienced a tunnel ram explosion once in my life and it was well into the tunnel ram era and it was loud and just like a granade going off.
Ajmopar, apparently you missed this part of my response...... Like I said, cross-rams look cool and can be made to work OK but they (other than a few Chrysler items as I previously noted) typically did not fair well in competition.....there was more HP available from a less complex and more robust system and thats why cross-rams were left to the show cars and hamburger stand specials. -Bigchief.
I run a edelbrock x-f9 on my 70 maverick which see's alot of track time, I had an rpm air gap and a 650 proform carb on a 96 explorer long block with an F cam, roller rockers, long tubes, T-5 trans and 4.11 gears, It ran a best of 12.16 @ 112 with the air gap and proform, It ran a best of 12.18 @ 112 with the cross ram and 450,s and is more streetable but is very cold natured, I think it would out run the single setup with some tuning, and an automatic would help too, Oh and I only turn the car 6200 rpm, love it.
mine work great on my 440, throttle response is right there and no problems in the cold, soon as its warmed up runs good
I think that all of the FE Ford ones are crap. PM me and I will take them off your hands for a small fee
Had a "Ridgerunner" back in the day on a 301 Chevy. Made by Ralph Ridgeway from CT. The same guy that developed the Ridgeway stud girdles for Chevy smallblocks. Mine had the dual quad top but if I remember correctly they also sold single 4bbl tops & 3 deuce tops. Bought it used from the Red Barn Speed Shop in Ludlow Mass. Anybody remember that place ? Last I knew it was still open for business.
The SY1 would puddle fuel at the lower RPMs, its runners and plenum were for upper RPM. The Chrysler 413 cross ram is the best street design for quads, long runners for low RPM and small plenums.
Just found me a cross ram for my 65 Chevy truck restoration........Now I just need to figure what cam and heads.
Bored 40 over, Comp 292HE, 202 humpers with buncha port work by Johnson Machine in Olympia. 3000 stahl. 3:00 gears. only thing that keeps it sane is those gears. Twin Edelbrock 500s. Runs like a scalded dog. Probably change the gears this year just to let it eat for a while. Actually gets decent mileage FOR NOW. Ran hell out of it all summer. only prob was that snapped axle on the way to RoseCity Roundup.
http://www.jalopyjournal.com/forum/showthread.php?t=314733 I run a weiand one on my henry j. I use a 1 inch carb spacer on each side with the pcv stem on the back. They hard line to a T in the middle and then down the back of the intake where the PCV valve is. I drilled the back of the intake and the line goes through the manifold into a 283 baffle so it doesn't suck oil. The car runs 12s and I'll run it as high as 7k rpm. Carbs are 390 CFM It's a street car too. I put over 6k miles on it in almost 3 years. not bad for an old gasser.
Ok. I'm bringing this one back to the top for a question. How do you think a 350 .30 over, mild cam, 2.02 heads would run with a Weiand crossram with 2 holley 450 cfm carbs. Would it run or would it be more trouble than its worth? Thanks for any help.. Aaron
i ran this in a drag car. 301cid. full race motor. u need to tune the carbs so the motor will balance . kinda a pain to get there but runs like an ape when its there.....
I just bought this (sbc) and am trying to figure out the manufacturer. Looks like the M/T style with smooth rounded runners, but absolutely no markings or numbers anywhere. Anyone have a clue? Possible it could be a M/T without the casting? I've got it planned to go on a hyd roller cammed 383. Thanks guys!
I wish Edelbrock made ths version again. Best one I think on a chevy. If you look close at the open top you'll see a bit of work done to keep the fuel from puddling compared to other cross rams, and a cross flow "s -lip" to direct air flow between the two sides. The lid is also designed in a way to direct airflow and fuel straight from the center placement of the carb holes.
There really isn't a lot of differences in the intakes. If you'll look, I think you can see where Offy got their development work done. (G) Top is GM, next Offy, then Edelbrock. Larry T
One thing to remember about the Mopar long rams and short rams is they were tuned for that SPECIFIC engine. The runner length was calculated to give a specific charge at a certain time at a certain RPM. The book "We were the Ramchargers" has a very EXCELLENT description of how/why. It also explains how the "tuned" exhaust the High and Mighty had essentially "robbed" the "tunnel ram" they devised, until Mancini figured out they had to fatten up the fuel mixture. I'd still love to find an STR 12 for my 300... someday. JK
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