dual downdraft carbs - Page 2

Red_Coupe · Aug 24th, 2003, 01:58 AM

well that would be a picture worth a thousand words...

I've see lots of hondas ,a few SR20's and 510's with the quad
carbs mad fast out of the gates that is for sure....

Webfoot · Aug 24th, 2003, 01:50 PM

I had a Honduh 750 Four back in the 80's and could never keep all 4 carbs tuned. Biggest PITA that was ever stolen.
Isn't yamhas' tt a 2 stroke?

WMengineering · Aug 24th, 2003, 05:20 PM

i know i know..not a nizzy...hehe

WMengineering · Aug 24th, 2003, 05:31 PM

ok..just to clarify....
i am a FULL supporter of MPFI....
honestly...i am also USUALLY against the use of carbs...for the very reasons that whats his name says...however. there are exceptions. i look at carbs as just another tool to use. depends on you preference...a healthy pair of webbers or any other set up int he right hands can be leathal. so can a properly tuned stand alone engine mngt. however, an MPFI set up with more computing power than that of the apollo 11 space rockets is not were im going to invest my money on this car (that will be reserved for the upcoming 3rd gen Rx7 hehe)

now..i have used carbs on dirtbikes for years, and know the advantages, and disadvantges..
i think this motor. for the application im utilizing it for. (in NA trim) MIGHT benifit from slightly less sophisticated fuel mngt.
we ll see what happens.

Side note: carbs are also harder to tune for nitrous in my opinion on small motors...which were i am headed with this motor, to the tune of at least a 100shot direct port system....
like i said...we ll see. just some ideas..hehe
stay tuned......

MyClunkyAss12er · Aug 24th, 2003, 05:42 PM

well said good man well said! i my self love carbs. but if i have a fi engine i would keep it fi. but i like ur thinkin!

ur on the way to having an extremely unique b12!

fastpakr · Aug 25th, 2003, 11:12 AM

WM, have you taken a look at the MegaSquirt system? You can do a completely user programmable ignition/fuel system for just a couple hundred bucks or so, maybe less since you should already have the MPFI hardware. Just a thought...

WMengineering · Aug 26th, 2003, 02:18 AM

when time arises i will have to look at that. got a weblink?
until then....its paint, polish, pieace together the stock motor.
i am concentrating now on flywheel clutch combos...but thats for another thread! haha

fastpakr · Aug 26th, 2003, 07:08 AM

http://www.bgsoflex.com/megasquirt.html

There are several variations on it now, including a new one down the pipe a bit that will be significantly more capable, but not much more expensive.

Crazy-Mart · Aug 26th, 2003, 12:11 PM

Fastpakr, yeah it seams like the megasquirt evolving more and more and more .... faster than i can follow up ...

fastpakr · Aug 26th, 2003, 01:54 PM

Yes, quicker than I can keep with for sure. Now if I could just finish soldering one together and put TBI on my '84 B2 I'd have fuel injection on everything I own!

Crazy-Mart · Aug 27th, 2003, 12:31 AM

let me know if you want one !!... i never got around building mine ... i got a V2.2 board i think the previous one.. wich only controls injection ill make you a nice deal !!... i got the board,chip,map sensor... i dont think ill ever use that !

fastpakr · Aug 27th, 2003, 07:10 AM

I've got a whole setup that's been on my kitchen table for months now, I just haven't gotten back to finishing it. There's also another board/chip/sensor in a bag that was going to go onto the Pulsar, but I won't do anything with that until the Bronco's finished.

Crazy-Mart · Aug 27th, 2003, 12:48 PM

nice let me know how it does run when youll be finishing ... have you bought the same as mine or the newer version with the ignition stuff ??

fastpakr · Aug 27th, 2003, 01:03 PM

I've got the same as you. I'd love to integrate ignition, but for now I'll just use the Duraspark electronic ignition that's on it. Simple and doesn't require any factory electronics to control, so it's a good match until I tie ignition to MegaSquirt.