jsekula

Do you still have the 17 cc domes? Are they for a base 3500 or big bore? What shape are they in? How much?

New Price: $3450.00 jsekula@tampabay.rr.com 727-842-2766

Another Last... If you better pics, email me. Joe

Another

Selling 1987 Banshee. I'm looking to get something a little slower to cruz the trails with the wife. I am the second owner and have a title. I rebuilt the machine two years ago... I am talking complete. Powder coated in gloss black, blue, and yellow. Maier Plastic is new. Works shocks in the front, stock in back. The engine is very different... I am running a Grayton Racing 2 into 1 intake with a 35mm Khein Air Striker Racing Carb and K&N filter. Exhaust is a Dynaport 2 into 1 and sound a lot different than a normal Banshee. Had the cylinders port and polished by a tuner in Arizona, took forever but was worth it (I cannot remember the size he bored them to). Case was split, all seals replaced. Coolhead with 17cc domes yielding about 125 to 130 psi. After I put everything together, had it at Kinetics in New Port Richey to do the finishing tuning, their guess was about 60hp. Here is so of the real trick stuff... I am running a Dyna FS ignition which can be remapped with a laptop. Four different curves are built in and can be changed with external dip switches. Tuning the engine now is a piece of cake. On the handle bars I am running a Digatron Computer system which tracks EGT on both cylinders, RPMs, and MPH. The display gives instant information to you plus everything can be replayed or dumped to a laptop which graphs out everything. This system is used in shifter carts. I am sure I am missing something... I've had this Shee for 12 years but I am 45 and desire something a bit slowerrrr... Prices: $3,750.00; and I have certainly put a lot more than that into it... email me at roxya@tampabay.rr.com or 727-842-2766 if interested or you want better pics... Will deliver 50 miles from New Port Richey, FL

Yeah, I think your right, except I cannot get 7 to 9 inches from the piston. I check with a noncontact temperature gun and right the Y was the hotest. Ofcourse, the pipe heats up faster there since the exhaust combines. I figure on doing jetting by the plugs of course and then compare it against the exhaust temps; that will be the safest way to go. I scanned the graph after I printed it out... Thanks, Joe By the way, where did you place your speed sensor?

I need some 16 or 17cc domes... Thanks, Joe

When talking to Doug, his Harley does the same; the front is cooler than the back. One cylinder is basically leading. In V-8 engines, outer cylinders run cooler and there is no ill effects. Now sure, if your running two carbs on a Banshee, you could tune this out. I am not worried because the way it runs (great). Another thing I noticed with Banshees when pulling the head, one cylinder does run hotter since there is less carbon build up in the dome.

Banchetta, I hear you but I am not worried. If I had an air leak, I would see a lean condition on one plug, usually the side the leak is on. Another indication would be hard starting since you would be pulling air through the leak and not a charge through the carb. I spoke with Doug from Digatron who advised this is not uncommon. Here is some data out of the engine... Black is RPMs, Red and Green are cylinder temperatures. This was around the yard three times... The max peaks are 8010 rpms, left cylinder @ 706 degs F and the right @ 380 degs F. The only thing I can come up with is the left cylinder engine case is the stator side which is dry and the right is the clutch which is wet because of the oil bath which should cool that side of the case. It is just a wild guess...

Bottom end was split and completely redone. The weird thing is when the engine is cooled down to ambient temp, both probes read exactly the same.

probes are 2" from top of exhaust flange inserted 1" which is 1/4" past center per Digatron.

Compression is 127 on each cylinder and no difference in plug color.

OK, This is interesting... I installed a Digatron unit on my Banshee. I am using two exhaust gas temperature probes. Everything is brand new. The probes are two inches from the end of the exhaust flange. When everything is cold, not running or whatever the air temp is, both probes read exactly the same. BUT, when the engine is running, one runs hotter than the other. About 150-200 degrees difference. Sitting on the bike, the left side cylinder is the hotter one. Any ideas? As for how it runs, very fast. Some other info: I am running a Graydon Proline 2 into 1 intake with one 35mm PWK A/S and a Dynoport 2 into 1 exhaust. Give me your thoughts or expertise... Joe

Graydon Proline intake is easy to install, one nice thing moving the carb further back which seems to help protect the air filter more. 35mm PWK A/S is the only way to go. This setup moves a lot of air... in Florida when I ride, the manifold gets super cold and sweats; cooling the charge into the engine. Also you can run V-force reeds with not problems. You cannot on early model Trinity intakes.

I have one and I am pleased with it...