datzenmike Posted May 13, 2012 Report Share Posted May 13, 2012 I highly advise velocity horns on any carb but specially multiple side drafts. Because there is so much room on a cross flow head I would also suggest ram tuning. How hard is it to put hoses on the carb inlets? One simple formula is N X L = 84,000 where N is the desired RPM range L is the distance from the valve face to the opening of the flared inlet in inches 84,000 is a constant involving the speed of sound, air temp, blah blah blah. If your motor makes it's peak power at say 5,500 RPMs you can ram tune it just above say 5,800 by transposing the formula... 84,000/5,800 = ideal length in inches. OR 14.4 inches. If the valve face to the intake is 3" and the intake to the carb is 6 inches, and the carb body is 3.5 inches for a total of 12.5"... you could add a 2" velocity stack to each carb and take advantage of free ram effects. 2 Quote Link to comment
slingshot532 Posted May 13, 2012 Report Share Posted May 13, 2012 ^^thanks mike!^^ Quote Link to comment
Farmer Joe Posted May 13, 2012 Report Share Posted May 13, 2012 OFFENCE TAKEN! j/k Gong to fire mine off tonight. I plugged the trans with the old yoke. got all coolant lines done and filled. Put a makeshift gravity feed gas tank on. DONE. It's happining people!! and I'm GoProing it. :P Will post video asap. wellllllll? you cant do that to us, man... Quote Link to comment
VintageRice Posted May 13, 2012 Report Share Posted May 13, 2012 I'm having a exhaust guy make me 4 2-3" flared tubes for velocity stacks. el cheap-o is my name-o. O......and btw................its ALIVE........................... Video is currently uploading. :ninja: Quote Link to comment
Logical1 Posted May 13, 2012 Report Share Posted May 13, 2012 That shit sounds MEAN! You must have a ear to ear grin right now :thumbup: Quote Link to comment
metalmonkey47 Posted May 13, 2012 Report Share Posted May 13, 2012 Damn you had that thing running smooth once you got it running for a moment. Congrats! hard work pays off. Quote Link to comment
slingshot532 Posted May 13, 2012 Report Share Posted May 13, 2012 NICE!!!! I LOVE it!! :thumbup: Quote Link to comment
slingshot532 Posted May 13, 2012 Report Share Posted May 13, 2012 K, so I got more done this week. Reversed crossmember Shortened dipstick( I don"t know why but this makes me giggle) Installed 200sx throtel cable shifter location header hits steering box hood dose not close and drive shaft is 3 inches too short. Over all good progress. Quote Link to comment
spudly13 Posted May 13, 2012 Report Share Posted May 13, 2012 I'm having a exhaust guy make me 4 2-3" flared tubes for velocity stacks. el cheap-o is my name-o. O......and btw................its ALIVE........................... Video is currently uploading. :ninja: \ Gunna make it to des moines on the 20th??? Quote Link to comment
VintageRice Posted May 13, 2012 Report Share Posted May 13, 2012 \ Gunna make it to des moines on the 20th??? Yep, but probly not in the datto..........we'll see if I can get it properly tuned by then. I don't wanna drive that far really rich or really lean. Quote Link to comment
VintageRice Posted May 13, 2012 Report Share Posted May 13, 2012 That shit sounds MEAN! You must have a ear to ear grin right now :thumbup: I know! It does doesn't it!! Quote Link to comment
VintageRice Posted May 13, 2012 Report Share Posted May 13, 2012 Slingshot, great progress!!! Ka ftw! Things I would address by looking at your pics. Cut that intake back into the angled part. (your probably already going to for hood clearance) but the reason I say this is cause you already have the right angle there in the runners, but then they flatten back out again so the carb bowls still aren't right. The massive lift you have in the runners ends up being pointless. Also, make sure the throttle cable is pulling straight out of the sheath not angled. Just fyi, that causes frayed cable issues pretty quick. This happens on 08-09 ski-doo's in under 1000 miles. (I know i had one) Also, where did you attach the cable on the pedal end? if you put it right at the stock pull location its going to have a really short pull to WOT and will result in some touchy throttle syndrome. Reason I utilized the 510 linkage was to change the pull ratio. since the bike carb pull is about half the cable pull distance of our cars. Just things I noticed. Now Get'er fired up!! 1 Quote Link to comment
2JZ260z Posted May 13, 2012 Report Share Posted May 13, 2012 Cant wait to see what it sounds like under load! :3 Quote Link to comment
slingshot532 Posted May 13, 2012 Report Share Posted May 13, 2012 Slingshot, great progress!!! Ka ftw! Things I would address by looking at your pics. Cut that intake back into the angled part. (your probably already going to for hood clearance) but the reason I say this is cause you already have the right angle there in the runners, but then they flatten back out again so the carb bowls still aren't right. The massive lift you have in the runners ends up being pointless. Also, make sure the throttle cable is pulling straight out of the sheath not angled. Just fyi, that causes frayed cable issues pretty quick. This happens on 08-09 ski-doo's in under 1000 miles. (I know i had one) Also, where did you attach the cable on the pedal end? if you put it right at the stock pull location its going to have a really short pull to WOT and will result in some touchy throttle syndrome. Reason I utilized the 510 linkage was to change the pull ratio. since the bike carb pull is about half the cable pull distance of our cars. Just things I noticed. Now Get'er fired up!! Thanks for the pointers. Your car sounds bad ass!! I am so excited to get mine running! Quote Link to comment
Logical1 Posted May 13, 2012 Report Share Posted May 13, 2012 Off topic real quick Vintage, What software you using to edit your gopro video with? Quote Link to comment
Z chopper Posted May 13, 2012 Report Share Posted May 13, 2012 I had my speakers turned up and barely heard my neighbor knock on the door asking me what the sound was, I explained it was a single cammer ka24 with R1 carbs, he wants the audio track to put his son to sleep. Quote Link to comment
VintageRice Posted May 13, 2012 Report Share Posted May 13, 2012 Off topic real quick Vintage, What software you using to edit your gopro video with? It's a really high end program.....you'll never be able to figure it out......only for the pros................ahem...............windows movie maker.................ahem............ I had my speakers turned up and barely heard my neighbor knock on the door asking me what the sound was, I explained it was a single cammer ka24 with R1 carbs, he wants the audio track to put his son to sleep. Rock a bye baby on the tree top, when my car drives by, your cradle will ROCK. 1 Quote Link to comment
Z chopper Posted May 13, 2012 Report Share Posted May 13, 2012 not mine and not r1 carbs but they are motorcycle carbs http://youtu.be/_P75EN4dvgE Keihin Motorcycle carbs to be exact 1 Quote Link to comment
Farmer Joe Posted May 13, 2012 Report Share Posted May 13, 2012 damn, that sounds awesome! the sound of the carbs overwhelms even the open header.. beautiful... Quote Link to comment
datzenmike Posted May 13, 2012 Report Share Posted May 13, 2012 Did you notice the standoff.. the misty vapor spitting out? Quote Link to comment
jesusno2 Posted May 13, 2012 Report Share Posted May 13, 2012 not mine and not r1 carbs but they are motorcycle carbs http://youtu.be/_P75EN4dvgE Keihin Motorcycle carbs to be exact NOW THAT SON IS WHAT A SET OF PROPER BIKE CARBS SOUND LIKE!!!!!! maybe just a touch more dialing in their on the mid to main circuit but very close. 1 Quote Link to comment
Drummerboy4as Posted May 13, 2012 Report Share Posted May 13, 2012 That's probably a bit of reversion. I have a flat slide mikuni on my bike that has an accelerator pump. At certain RPM's the backup of exhaust pressure at the overlap of the cam pushes fuel vapor back out of the carb. Before that I had a Kehin CV and the same thing would happen. To be fair I have high lift cams with quite a bit of overlap and it's pretty common on Harleys ;) Quote Link to comment
Z chopper Posted May 13, 2012 Report Share Posted May 13, 2012 it is a b110 so I am guessing it an 1000cc or 1200cc engine and looks like a motorcycle muffler in the back Quote Link to comment
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