Author Topic: 1991, 124", FXR, RedShift 647, Zippers G3 Carb, Guppy Exhaust, Zippers Heads  (Read 2656 times)

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Offline Nastytls

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There are those that do, and there are those that that think about it but say it's too difficult. I'd rather be a do-er and prove the "thinkers" wrong.


Not sure if you caught it, but the front fork has been lengthened at the bottom. The usual, arm chair, do nothing critics all said the sky would fall, etc. Five years, lots of hard riding, 30k miles, and its still going. Last winter during its service, I sent the external extensions to a metallurgist at GMI to be checked. They came back with a very clean bill of health. Amazing. Not surprisingly, those same arm-chair do nothings have been very silent on this thread. Too funny.

Offline GMR-PERFORMANCE

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I know what its like to work on a project for a long time and when you are done it an amazing feeling. Never worked on a bike that long but my 62 pickup was a 7 year project..  you have done an stellar job on choosing parts for the build .  :up:  I can only imagine the smile on your face when you get to ride this FXR. I would think its time to find some import bikes to play with at this level ..  :teeth:
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Offline turboprop

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I know what its like to work on a project for a long time and when you are done it an amazing feeling. Never worked on a bike that long but my 62 pickup was a 7 year project..  you have done an stellar job on choosing parts for the build .  :up:  I can only imagine the smile on your face when you get to ride this FXR. I would think its time to find some import bikes to play with at this level ..  :teeth:

Thanks Steve. These bikes are many things to and for me, but they will never be finished. My only child is a daughter that is currently 12 years old. Not sure who her life partner will end up being, but I hope he/she is into fast Harleys and tools. If I were smart, I would sell all this harley stuff and buy a an Africa Twin and something made by Ducati. Even with the initial loss on the harley stuff I would still come out ahead after a couple years.

Anyways, hope all is well for you Steve.

PS - My friend Mike Pantazzi said you helped him out with his exhaust stuff. Mike is an amazingly skilled welder and hopefully he will pick up what goes into an effective exhaust system.
'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.

Offline Will-Run

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 It is an extreme misfortune for all of us , that you are not running the MoCo. I greatly admire the way you see , plan and
  execute projects. Not just a load of crap that does little more than shine in the sun, and make noise. Thanks for sharing.
Lean Angle, " Is Life."

Offline Templer

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What you didn't trust the OEM front end and brakes???  :pop:  :hyst:

Offline turboprop

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Aside from the power, my inner circle of friends that have ridden this bike all rave over the transmission and hand controls. 

The transmission was built on a Delkron case and consists of a an Andrews close ratio gear set and shafts, an 'R' ratio second gear set from Baker, Zippers/Bassano trap door, drum pawl and pillow blocks from an '02 and up five speed, and upgraded bearings throughout. The gears have been back cut by Zippers. The drum has been shimmed to less than .001" side clearance, the bushing for the shifter pawl has honed for a very close fit (I forget the spec), ARP 12pt hardware is used throughout. The end cover is a Baker hydraulic unit.

Sort of related is the tube for the mid-shift control. The bushings in it were replaced with undersized units and then honed for a very close fit. The heim joints used for the linkage are the best aviation grade units that I could find at the time.

Lets just say the transmission in this bike is not the average five speed. Its shifts are very precise and reliable. In this configuration, I can't think of a single incidence where it has missed a shift and the gear spacing is ideal. Much better than anything out of Harley.

The hand controls on this bike are Brembo 19mm RCS units and have adjustable reach and aspect ratio.

Again, my inner circle of friends with Harley's (and sport bikes) are all very blown away by the power, but the next things they talk about are how well it shifts and how much they like the controls.

The brakes on this bike are not for everyone, especially the harley crowd. They rattle, make a shit ton of noise, have to be warmed up, etc. Even with the pads warmed up, very few of my friends are willing to stay on the gas too deep into a curve and then stand on the brakes. It takes some getting used to. I also have a TC bagger. Riding it feels archaic, like I am am driving a blimp.

Anyways, glad to see some feedback here. Thanks.
'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.

Online Hossamania

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I would have no problem with the noise from the brakes, and I understand the technique of late, hard braking. That is the way I normally run. I've always felt it was better to brake a little hard for a shorter amount of time, than to brake weakly and build up a lot of heat for a longer period of time.
It sounds like you have really taken the time and effort to put together a complete package and succeeded.
Congratulations!
No shirt, no shoes, but I still get service.
Why? Girl, look at this body!

Offline biggzed

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I thought so, but I thought that motor was going in a different bike. You had posted pics of a bike you were putting together that had Forbidden risers, a T-Sport fairing and a blue and white paint scheme. Doesn't really matter, the end result is simply amazing.

I joined this site many years ago because I was researching a handling problem I was having with a '99 bagger. You were one of the people speaking from experience and actual technical knowledge in a thread I was reading. Most replies were promoting whatever someone had already bought or what their buddy bought, no real critical thinking/honesty in most of those replies. Completing projects like this and documenting them for this site is appreciated by many, myself included.

Keep doing what you are doing and thank you for your service.

Zach

So is this the Smack-A-Hoe motor from your other thread?

Zach

Yes.

Offline turboprop

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Good observation. Yes, until late April, this engine was in one of my other FXR chassis. I had planned to ride the new project bike to an FXR event in early June, but as the date approached I didn't think I would have that bike completed. 

The decision was made to pull the evo out of my red bike and swap this engine in its place. I am currently building another large displacement TC engine to put into the new project bike. The plan is to ride the new bike to the FXR event next year. The details of the new engine have not been worked out. I am leaning towards a 4.250" bore with a a 4" stroke, low compression (10.5 -ish) some short duration .600' - .625' lift cam, a set of heads from Zippers, a little Mik45 carb. make it a long range cruise missile, set up for very spirited touring (think Cannon Ball Run).

The new blue/white bike is sort of different for me. The high risers, sport fairing, saddlebags (canvas), passenger foot pegs (?), are all way out of my normal build profile. But its been fun. Whoever it was that told me to use a wiring harness from an FXD was a freakin idiot. I'd like to go back in time and throat punch him for that idea.

Having multiple FXRs (and a bagger) allows me the luxury to build slow and deliberate. My bikes typically take several years to complete. Lots of planning, mockup, fitting, finishing, etc. Dealing with twenty five year old castings is fun. Its very rare that I work on a trans or inner primary case that doesn't have several holes that need inserts and gasket surfaces that require lapping.

'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.

Offline turboprop

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Forgot to mention the S&S reed valve. My S&S TC case came with one of those reed valves. I hummed and hawed over wether or not to install it.

Reading the various discussions on this page, one gets the impression that these little reed valves are responsible for all the hate in the world, global warming, high taxes. The reed valve caused all of it according to the online experts.

I spoke to an engineer at S&S. Had a job tittle of VP of oiling systems. Seemed like a pretty smart fellow that had access to a lot of hard data. Based on that conversation, I put the reed valve in. Surprisingly, my wife didn't leave me, the world didn't end, etc.

My recipe included a 3-phase oil pump and forged cam plate from S&S as well as their engine case. The heads are vented via ports under the rocker boxes and feed into a catch can. The catch can allows me to capture and measure (somewhat) what comes out of the head breathers.

After riding the bike five hours on the highway, then all over/around Maggie Valley for three days and then another five hours home, the catch can had maybe two shot glasses worth of oil/muck in it.   
'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.

Offline Will-Run

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 I'm going blind trying to figure from the pictures , on this Red Weapon , what rubber you are running. What works for
 the way you use it?. Mine is on Night Dragons.  Thanks.
Lean Angle, " Is Life."

Offline Azgunner

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Top notch build with as expected amazing results! Love it! It's the details...

Do you have more pics of the bike together?

With the Evo Taj-Mah-Motor and Bassani Road Rage pipe;



Here ya go, 2nd photo from bottom.

Those pipes are Cycle Shack 2-2 with 2" head pipes and tapered mufflers with the baffles removed.

They were never run with the TC124 engine. With the Evo 106 they made more peak HP than the Bassani Road Rage but overall did not make as much power. I still have them and plan to try them in future dyno sessions.

Aha, they looked like a 2 into 1 exh. from the angle of the photo. I'll be looking forward to seeing how it does with the CSs. I have the same exhaust except with the baffles still in on my S&S 124" crate motor. Trying to address an electrical issue right now & haven't had it on a dyno yet.  BTW looks like we have the same light set-up on our Glocks, great for things that go bump in the night.
"All that is necessary for evil to triumph is for good men to do nothing"

Offline Templer

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"After riding the bike five hours on the highway, then all over/around Maggie Valley for three days and then another five hours home, the catch can had maybe two shot glasses worth of oil/muck in it."
 :agree:
I think that the 2 piece intake carb or TB is the only way to go. The use of a catch can MAY BE INCORRECT for EPA but i like NOT having that h2o/oil in the manifold or going thru to the internals. Very nice choice on the brake change!!  My 32 x 30 calipers sound off when applied but will hall your butt down quick!!! Once you get the cost of new pads  and time spent to change them you will be happy as a fox in the chickn house with no dogs. Nice ride ENJOY

Online justaguy

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Did the frame need to be modified to fit the 124?

Offline turboprop

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Did the frame need to be modified to fit the 124?

No. Lots of room. The rear rocker box (S&S cast) can be easily removed without lowering the front engine mount.
'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.

Offline boooby1744

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Looks like the S&S a/c does work.

Offline turboprop

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Looks like the S&S a/c does work.

No it does not.

At least not at this level. Once we removed that dual runner AC the AFR flattened out big time and power level went up. Its current configuration is the large Zippers backing plate with the AC that tapers outward and a round cover.

Will be doing some more tuning in January. Changes since the tune shown below include: thick wall, tapered, cut to length pushrods, 1" spacer in the intake tract, 1.7? rocker arms, an un-bent trans mainshaft, and an electric fuel pump.
'Never try to teach a pig to sing, it only wastes your time and annoys the pig'.