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I'm a bit clunky with the new forum layout so decided to start a new thread. After a Looooong summer, the re-work is finally done (are we ever REALLY done?) Unfortunately was not able to finish in time for the Road America AHRMA event as the motor finally roared to life 12 hrs before open practice. The weekend wasn't a total loss as we did bring it for the Rockerbox Vintage bike show and netted Best-in Show ? After Many missed deadlines, finally got it on track Monday for the shakedown. Bit of tweaking to do over the winter but overall thrilled with the results. Changes for this year included a complete rebuild on a 92 motor with overbore, adjustable 91 1100 cams, Extensive Head work and stiffer valve springs, Barnett Clutch springs, Dyna 2000 and mini coils tied in with a Dynojet quick-shift, Total loss ignition, custom race harness with quick change Lithium Batteries, Mikuni RS38 flatslides with an Under-braced Swingarm and Yosh replica catch-can tossed in for good measure. Pretty happy with the results so far tickling 121 rwhp. Combined with shedding over 25lbs, this thing should surprise some folks next year ? Special thanks to Jason Farrell of Farrell Performance for all his help (and patience). Frank Zlama and Kelly Roberts (and everyone here) for sharing their priceless experience, Craig Grant of Pingel Enterprise for the smokin deals on hardware and of course... Jason Dunne Fiberman for the trick Carb Covers. Enjoy!!!
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very nice build!

121 RWHP is impressive! for comparison's sakes; my first gen trackbike with a stock 86 750 engine with only a full yosh exhaust and RS36mm makes 95RWHP, and my other first gen trackbike makes 100RWHP, with aftermarket pistons and carrillo rods. of course, dyno readings vary, but you have a healthy engine.

this is going to be your trackbike?
 

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Discussion Starter #8
very nice build!

121 RWHP is impressive! for comparison's sakes; my first gen trackbike with a stock 86 750 engine with only a full yosh exhaust and RS36mm makes 95RWHP, and my other first gen trackbike makes 100RWHP, with aftermarket pistons and carrillo rods. of course, dyno readings vary, but you have a healthy engine.

this is going to be your trackbike?
Yes, it will be one of my track bikes but built primarily for the one local AHRMA round here at Road America. My original (stock 86 with Yosh) made 91rwhp. The last gen Oiler made 10HP more to start with and according to the experts had the best head for flow work (so long as you stay on top of your valve lash) and rods for the long haul.
 

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yeah, the R716 90-92 750 engines are the best oil-cooled 750 engines. i prefer the 90 engine, because it didn't have valve shims.

the 91-92's had a tendency to spit out valve shims during high rpm's. happened to me. valves and pistons collided; broke two valves and damaged the piston. no bueno. so, yeah, if you have shims, keep up on the clearances.

keep us posted on your track activities and i'll do the same. always nice to see these bikes at the track.
 

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Great looking bike man! Hope to see you on the track sometime. RA is on my list of 'east coast' AHRMA rounds I'd like to hit at some point. Nice rearsets ?
 

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Great looking bike and a stout engine. Are you planning to only do Road America or will you try and make it to Blackhawk and possibly Barber. Should be at least 5-6 new bikes out for Next Gen in 2020 so hope to see you on track.
 

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Discussion Starter #14
Are you planning to only do Road America or will you try and make it to Blackhawk and possibly Barber. Should be at least 5-6 new bikes out for Next Gen in 2020 so hope to see you on track.
Thanks. My objective is certainly Barber so Blackhawk and Gingerman is a prerequisite given the "2 event" rule to qualify for Barber. Unfortunately, Road America is off the Calendar for 2020. Depressing considering this extensive build was for the 3 top gear W.O. sections there :( Most other tracks can be geared for accordingly. 5-6 more bikes would be awesome as I have 2 buddies working on Next Gen projects also. See you in 2020 !
 

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FYI, I submitted a petition to WERA Road Racing and feel confident it will pass. Basically the proposed WERA V6HW class will align with AHRMA Next Gen 1. So that should give you other options throughout the year if you need testing or your friends get their bikes complete. Working on a proposal for V7HW this week which would include the previously legal V6HW big bore bikes, current V7HW bikes and AHRMA Next Gen 2 bikes. Almost a Formula class. I checked Barber lap times on all classes and should be some close competition.
 

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Discussion Starter #16
FYI, I submitted a petition to WERA Road Racing and feel confident it will pass. Basically the proposed WERA V6HW class will align with AHRMA Next Gen 1. So that should give you other options throughout the year if you need testing or your friends get their bikes complete. Working on a proposal for V7HW this week which would include the previously legal V6HW big bore bikes, current V7HW bikes and AHRMA Next Gen 2 bikes. Almost a Formula class. I checked Barber lap times on all classes and should be some close competition.
That would be great! Makes sense if Vintage Rules were standardized between Orgs. Would certainly open up participation across the board.
 

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Discussion Starter #19
Just in case the Gixxer members have not heard this: MotoAmerica Introduces Heritage Cup Vintage Program For 2020
I saw that. Emailed M.A. inquiring about details and got this initial response:

"We are very glad to hear of your interest in the Heritage Cup. We will work out regulations and details of the events based on the response we receive. At this point we are very interested in 80s era Superbikes and expect to have a class for racing and a class more for exhibition. We are gauging the level of interest and details will be developed accordingly.
Thank you for the information that you have supplied. Happy Holidays!"
 

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yeah, that motoamerica heritage cup should be a sight to see. i'm looking forward to seeing them at laguna seca. wsbk will not be racing at laguna seca this year, so motoamerica will need all the draw/attention it can gather to get more fans to attend races. hope it works out.
 
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