Rob.K

Whats your problem? take it easy man. The carbs are very similar to what are used on sleds, i didn't see that he put from a suzuki 600, but they are still Mikuni's.

fastspec2

Yep they are 32mm kuni's. I tried a set of 36 mm off of a gsx 750 but they didn't really work any better and the 32's I had pretty dialled in already. I ended up running some rather large jets to make it work well na. The jetting trial and eror actually got pretty spendy so a pin vice and some bits have since replaced the jet ordering-athon. My best performance ended up being a jet with the same dia as the 160 jet, but due to tolerance dif's and the inlet/outlet radius differences between a 10,000 dollar bad *** jet makeing machine and my half tipsy *** with the pin vice wedged in the makita, I can't claim any consistancy at all. Another really cool thing I tried was puting a wide band bung in each primary. Wow, was that a great learning experience. I only have a single wb channel, so I had to make 4 runs back to back and overlay, but it was really cool. The single biggest variable in any of my "testing" (aka totally ------- off) was air cleaner desighn. The right cleaners really made a huge diff. But that makes sense as when you buy a air cleaner kit it comes with jetting for the bike and aplication.

I'm heading dwn to the shop toaday to get the tank stuff finished. I pulled it yesterday and need a new through fitting and mount the pump. We'll see, I'll post what I manage to figure out. I Hope this works.The more I ---- with it, the more I'm tempted to MSI the stupid thing useing the gsxr ITBS and injectors and get on with my life.


Anyway, have a good weakend *******

krustindumm

Just out of curiosity...what was the recommended jetting for that bike and filters? I am wondering how far off it would be from the jets you used, since carbs work off of vacuum, I would think it would be similar.

fastspec2

So i'm getting my *** kicked. I have got the fuel system done but its still not the way the motor wants. I've taken a extra set of carbs apart and can't find any way that a blow-through won't work properly, yet it flat don't work. I still have a few things to try but to be honest, i'm getting a bit discouraged. I am a long way from giving up, but it didn't responjd at all the way I though it would to the nw fuel system. I need to get the downpipe done so I can get a wide band in the exhaust, but i'm 99% sure it just goes dead lean under much load. So if you have any insight, throw it out there. Thanx guys.

Smith-02

send a pm to tough-guy he has a turbo bike....


and he works on recreational/sport stuff all the time.

JoshMO

Waiting for some ripper vids.

idiot-stick

seconded. For this unique setup, I require both on-road and off-road rippers.

iceracerdude

I've got a water/meth injection system on my set-up (fuel injected 1.6 sohc w/ k03), You can set it to come at x amount of boost with x amount of spray and then increase as you want when you want. It's a "Coolingmist Vari cool II". Here's a pic of the cuntroller:
click it to enlarge

fastspec2

SO I swapped in the 195 jets and bam, we got action. I also fixed a problem with the float vents and now its much much better. Got it actually rev to the limiter. I got the downpipe installed with the wide band bung, I didn't get the sensor in it to really get any data yet, but I will tomorrow. I will get some more info and seat time tomorow and try to get an idea of where i'm at, but so far so good. I think I'm over the hump though.

WOOHOO

fastspec2

Alright, I don't have a ripper yet, but its on the way for sure. But I have put a few miles on the rig in the last few days, enough to get the neighbor bitch to call the heat on me. So far, thing runs very well. I ran the wb and got 12.2-12.3 at wot at the top of the revs in 3r gear, so I'm close. I would like to see a touch richer for safty sake, but so far no issues. My drivability needs a bit of work, I need to change my needles I think as my tip in, and "early" part throttle afr is still too lean. I think I'm going to try and carve up my own needle profiles with a drill and some sand paper. Maybe a file. With the 195's it idles at 12.5, wich is too rich, but it still runs pretty damn good at idle.
Things I learned so far.
the carbs facory are jetted 115 on the gsx 600 motor
my best performance on my engine was with 160's NA.
the carbs work good under boost, but they need a pretty big delta across the slides before they open, this has caused problems with some of my boost referenced gear like the btm and fuel pressure regulator, and I have had to move some of the ports around to get good, reliable, accurate signals.
with the big jets the choke is very comanding, able to soak the plugs if not careful.
The fuel pressure requirements are almost nil. If I could get fp to be 1 to 1.5 psi above boost it would be enough. In fact with my regulator, the floats are so lightly sprung that pressure ocilates between 1.5 and 2 psi as it blows the needle open regularly if I'm off on the adjustmant even a smidgen
I have thought about modifying a egr valve position sensor from a ford to run on the top of the carbs so I can know were the slide is at all times and log its position on the dyno or a logger.

Rippers, on road, off road and dyno comeing soon.