softail73
Lady and the Scamp
Uea thats helpful ...thanksNo but I once installed a cam in a Chevy 350 while drinking Budweiser the whole time....
Uea thats helpful ...thanksNo but I once installed a cam in a Chevy 350 while drinking Budweiser the whole time....
Yes it was converted over to alky. Raised the floats already .. is there something else I should be looking at besides floats?Was the carb converter to run on Alcohol or is it an Alcohol carb from Holley.....cause if it is converted some of the internal passages may not be large enough to flow twice the amount of alcohol vs gas.
I have tried heat range of 7 to 12. Carb builder told me to use 9Yeah, I missed it in the other post.
Yea went from 36 to 33 it didnt helpDid You try pulling out some timing?
Timing is at 33How much total timing?
What spark plug?
What compression ratio?
What camshaft?
My gut says its rich...but...if you have the wrong plug it can do the same.
Tries a friends quick fuel alky carb and it did it tooYes it was converted over to alky. Raised the floats already .. is there something else I should be looking at besides floats?
That's a little humor..Uea thats helpful ...thanks
Humor,...I recognize it, just not real familiar with it. Just frustrated with my car. Runs dead on the dial and has put me in the winners circle several times even with its problems. Just afraid its gonna hurt somethingThat's a little humor..
Tried new 6al box. No rev limiter. Carb builder said use ngk 9 had timing at 36 dropped it to 33. Havent tried moving shift point thou. Thanks1-try a new 6al, 2-move your shift rpm up, 2-if it has a rev limiter move it up a 1000rpm, 4-put move timing in it, alcohol needs it, 5-you don't read the plugs the same as a gas motor, 6-go find mike canter's essay on reading alcohol fueled plugs.
Are you getting enough fuel to it? I ran E85 briefly NA on a converted 750 carb and upgraded everything to deliver the additional 30% more fuel E85 required. I assume alcohol is even more. 1/2" feed and return, 255lph fuel pump, FI rated regulator.
Can you put a wideband O2 on it? That would take the guess work out of where your tune is in terms of too rich vs too lean when it pops.
I went from a holley black to a hp150 Holley and no changeAre you getting enough fuel to it? I ran E85 briefly NA on a converted 750 carb and upgraded everything to deliver the additional 30% more fuel E85 required. I assume alcohol is even more. 1/2" feed and return, 255lph fuel pump, FI rated regulator.
Can you put a wideband O2 on it? That would take the guess work out of where your tune is in terms of too rich vs too lean when it pops.
And I have 1/2" lineI went from a holley black to a hp150 Holley and no change
Hate to sound like some dumb chic but I am.I went from a holley black to a hp150 Holley and no change
I'll check into that thanks. If anything else comes to mine please dont hesitateI see where you tried a bigger pump already and that your fuel pressure is stable at RPM. I got nothing else. Wideband.
had the heads checked when I had them and intake ported. Springs look good toAre your heads cracked at the valve seats? Magnum heads have a reputation for cracking in between the intake and exhaust valve seats.
Its got extentionsConverting a carb to Alcohol is more than just upping jet sizes. Assuming this carb has big needle and seats? Air bleeds enlarged passages through the metering block enlarged and so on. Also is it something super simple like it hasn't got jet extensions?
Cheers
Thanks for the tip will give it a try this weekendBurn on electrode of plug should be in center. Hard to tune alcohol by plug. Water temp should rise by 10 degrees at end of run. u can try closing gap on plug to .025. My fuel pressure is 4 psi at idle and 12psi wide open as per carb builder. We tune off of exhaust gas temp.
Thanks for the tip will give it a try this weekend
Mate I have a 360 with J heads injected Meth, lunati camshaft and a Vertex. Simple as anything 10.5:1 motor. Runs like ten men. Seriously ditch that carby and after you've tried a single butterfly injection set up you won't ever consider a carb again. The only other thing is I run way hotter NGK BP5ES plugs.