holly 2 barrel

[raidinator]

Thats good info about the weber 38 I had never run anything but the stock mikuni, i do plan to work the head and add a larger cam plus i am running a very free flowing exhaust and headers also an upgraded ignition system. My thought is that I am not going to get the full benefit of these additions without upgrading the carb.

bY the way MY MIND IS NOT MADE UP my hope is to draw from everyone's experience before i buy any carb at all. the reason for my attachment to holly is simply because i've dealt with them before.

thank you everyone for your input

[TotallyBalistic]

see you gotta mention that stuff. from the way you was talkin you was gonna be runnin it on a stock motor, but if you build the motor to suit, then a weber 38 should be ok. thanks for clearing that up. not sure on the holley though i dont mind helpin you look into this.

[79D50]

The 38 dges is only good for the 2.6 with lot of mods; it is overkill for a stock 2.6. The stock mikuni is a 32/35, so a weber 32/36 is slightly larger secondary, that is why it works so well on these motors. the newer 34 webers could be even better due to smaller size and good if you need to pass smog.

^^^^Very True. My Weber 38 has been rejetted to my build and will be running a littel over 400 CFM. But I have also done extensive bottom and top end work. The only other setup on a highly tuned motor would be the dual 40 DCOE's. For a stock 2.6 anything over 300 will run like dogshit.

[raidinator]

alright that's good to know, I appreciate the info

[79D50]

Forgot to add this note: If you are considering the 38MM, don't do it unless you switch to an electric fuel pump like a carter 40/70. The 38 will run best at 4+ PSI and the carter is rated at 4-6PSI. You don't get any surge or flow problems with an electric. This means better throttle response and combustion. Some guys run the carter without a pressure regulator but I am installing one for tuning purposes. The carter runs $80 bucks. Its an awesome MOD. Here is a pic of mine installed right at the tank....

[77amc]

I've had a few Carters and they run louder than I would like. I found a 'universal' inline one that quiets down after it gets up to pressure.
On my 2.6 I ported it, matched it, took out the divider in the baseplate, have a Schnieder 272 cam, roller rockers, cam gear 4+deg, .75mm over block with flat tops, pacesetter and full flow exhaust with turbo muffler at the back.
The weber is a 32/36 E-choke and is backfiring under 1/3 peddle.. SO, I think I need to richen it up a little but don't see a whole lot of fuel squirting from the accelerator. And even check the vacume advance can to see if it's leakin and not doing it's job.
It's not on the road yet so I can't say what the mileage is at this time. It's got to be better since I swapped the 4.22 rear for a yota one. I think it's around 3.3:1???

I wouldn't mind trying a Holley.. The jetting that's offered can't be that far off. It's all in the vacume signals in that particular carb isn't it?
And I don't think a 2.6 engine is that small! Isn't it the largest imported 4cyl??
Heck, I have 3 other Hondas using the webers and they are 1500cc's and lower.
I even found a OLD Holley "Bugspray" carb that looks slightly larger than the webers throttle-plates. Hhhhmmm..

Errol

[raidinator]

do you have any idea what kind of horse power and torque numbers your running with the 2.6 setup?

[77amc]

NONE at all.. I won't know much of any good info until I can get it roadworthy, find out the ratio, measure the rear tires and go weigh it.
I'm a little worried about the roller rockers chewing up the new cam and almost don't want to pull the cover to look at them.
The 'better' rear gear won't tell me either until I get up to some decent speed, and then see what happens when the secondaries open..

I don't want to change the thread that much but, I have an extra quest intake and thought of cutting it where it spreads to the two outer ports and welding in 'elbows' then either adapting in two Weber 43ICT's like the bugs have or using two 1barrels like the early Chevys and Fords
(that would look interesting.. Having 4 1-barrels inline similar to the flathead fords with a long aircleaner and a scoop on the hood) I did pick up an intake from a V8 Q-45 that has some really nice thick cast turns that could be used. Hhhmm..I shoulda got the base too!

E

[raidinator]

as the originator of this thread go ahead and change this thread as much as you want, I like the idea of altering the intake manifold. I think it would be easier to fabricate the thing from scratch., my only concern is the coolant routing through the manifold. The other possibility could be to create an adapter for datsun z style side draft carbs, by the way how is it that a 2.4 liter L 6 with a failry mild cam and an exhaust system that is basically cooking the carbs, can create so much more power than out L4 2.6 liters, greater displacement and a better set up fro ma heat prospective. so what is it we need to mimic to create the datsun's better power?

[raidinator]

Alright we have progress, chiefly i have ordered a pretty non discript old holly 2 barrel 10 buck on ebay. i figured it's ability to be a door stop makes it a safe buy even if i can't rebuild it (which it looks like i should be able to) I also discovered that holly 2 barrels are the preferred carb in a few different stadium type races where 2 barrels are mandatory. so this means INFINITE ADAPTABILITY. you can adjust and jet that thing down to Briggs & Straton levels or tune it up to support a ground pounding V8. this means that this thing can be made the right carb for all phases of my engine build. just thought i'd throw that out there

http://cgi.ebay.com/ebaymotors/ws/eBayI ... K:MEWNX:IT

there it is