Need Carb advice asap !

[Anonymous]

:roll: Need advice on a carb....I have a chance to pick up a weber 38/38 carb and the 2 bl adapter....My question is on my stock 200/6 will it handle the weber carb ok or will it be too much carb with the stock engine with dual outlet header ???? Your input is needed ! Thanks all ! My car is a 72' Maverick,200/6 with a C4

 

[CoupeBoy]

I dont know if anybody is willing to give a yes or no, black or white answer on that one. It sounds like you have the exhaust side of things freed up for better breathing and that carb would give you better intake breathing but what about the cam? And have you upgraded the ignition yet?

Irregardless if you can get a good deal on it you should buy it for a future upgrade for when everything else is in place. Or buy it an put it on and let us know how well it works so we can either do the same.

-ron

 

[rbohm]

8) your engine should handle the carb just fine. the nice thing about the weber carb is you can tune the carb for the engine. i say grab it and have some fun!

 

[Anonymous]

I'm gonna try and pick the weber carb up.I think that i will put a cam in next season so it will be a good thing to have regardless.I cant thank you guys enough that respond with the advice to us performance knowledge 6 challenged folk ! Hopefully,i will try out the carb soon and let you know on that too. :checks:

 

[falcon fanatic]

I have a stock 200 with the small log head. My only mods are dual outlet headers with an appropriate exhaust, duraspark ignition and...a weber 38/38. This carb works wonderfully straight out of the box on this engine (this one was packaged for a jeep). GET IT, YOU WILL LOVE IT. It is waaaaay better than the autolite 1101 in terms of power and much better than any of the many weber 32/36 I've worked on on various cars (MGB, Beetle, Datsun 510). As a point of reference, these mods shaved about five seconds off of my 0-60 times (granted the engine wasn't running well before hand)

It has a rock solid idle, pulls strong right off the line, and upped my highway cruising speed by 10mph. And when I finally bolt on my heavily modified M head I'm sure it will really cook. A versatile carb.

Notes: I was talked into getting a carter electric pump ($75), Holley fuel pressure regulator ($30), and various bits of plumbing (the nickle and dime that kill you in the long run) to solve rough running problems early in the installation. Turned out I had a bad coil. I believe this carb will operate just fine with the stock mechanical fule pump if a Holley fuel pressure regulator is used. Try it like that, set the pressure to about 3 psi (you will need to buy a guage and mount it to the extra outlet on the regulator). If you can maintain a consistent pressure with the mechanical pump you just saved yourself $70 - $100.

 

[Anonymous]

hey falcon fanatic,

you mentioned getting roped into buying the electric pump etc. I have 66 mustang, i put a 32/36 in it and i go the holley reg plus a guage. i can't get the pressure to stay at 3, it keeps dropping. i turn the regulator some more and it hold at 3 for a bit and drops again. do you know what the problem could be?

i have just 2 weeks lef to get this car running well before i move to San Francisco. So i had to bite the bullet an buy the eletric pump just so that it could get here soon in case the mechanical pump was the problem. most everything on the car is new now. i have pertronix in there with the 40kV coil.

 

[falcon fanatic]

Well Evren, I didn't say I was right! :roll: If the pressure is inconsistent, then perhaps it is due to the mechanical pump. The electric pump will certainly delkiver consistent pressure. The carter I used is a 5-7 psi pump, so that's about right for regulating down to 3 psi. It's about $70 from summit, but then you need to add an oil pressure switch to make sure the pump only runs if the engine is running. You connect that with a tee to where the stock oil pressure sender is. Unless you find a cheaper pump, the whole thing ends up costing about $100. You need to find a switched 12v source too. Beware, in my car the only switched source to the engine bay was a 6v to the coil. I ended up routing that to turn on a relay to a switched fuse box that tapped straight into the hot side of the starter relay so I get 12v - 14v to the coil and anything else I want. It's just $$$$

 

[xctasy]

Reduce the length of hose from the regulator to the carb if you can. A long hose from a regulator mounted far away tends to cause problems. With a large diameter hose that is short, with a minimum of distance from the regulator to the carb, it should work well at 3 psi constant.


The 38 will love its new home.