'80 GS1100E rebuild

[blowerbike]

i prefer the 77-79 GS750 oil pump gears..E/L/X/Y/Z ect..
dont matter.
the 80-82 750 pump gears will work also.
i always got 50 bucks for a set of the gears/ good bad or otherwise.
should be some used ones around here somewhere....
here as in GS resources.

[cavehamster]

So, talking to a friend today at lunch (the Mustang racer guy), he asked if I shouldn't consider the 13.5:1 1168 kit vs the 10.25:1 kit. Thoughts? I am certainly going to drag race the snot out of the bike, but I would like for it to be streetable too.

Been too busy at work upgrading computers (don't you love small companies where you are the sysadmin too?) to get home at a reasonable time to finish tearing down the engine, but I plan on blowing off Friday afternoon to work on it. The manual says I don't need to remove the rotor and starter clutch assembly to get the crank out, is there any reason the machine shop would want it off so they can weld the crank? It looks like it is a chore to get it off.

[chef1366]

So, talking to a friend today at lunch (the Mustang racer guy), he asked if I shouldn't consider the 13.5:1 1168 kit vs the 10.25:1 kit. Thoughts? I am certainly going to drag race the snot out of the bike, but I would like for it to be streetable too.

Been too busy at work upgrading computers (don't you love small companies where you are the sysadmin too?) to get home at a reasonable time to finish tearing down the engine, but I plan on blowing off Friday afternoon to work on it. The manual says I don't need to remove the rotor and starter clutch assembly to get the crank out, is there any reason the machine shop would want it off so they can weld the crank? It looks like it is a chore to get it off.

You'll need race gas to run on the street with high compression pistons.
Posplayr and I put an 1166 kit in his ED and I rode it the other day. It was a wheelie monster with gobs of low end and top end. Cams degreed 105/107 with WebCam .340s. I was jealous.

[blowerbike]

You'll need race gas to run on the street with high compression pistons.
Posplayr and I put an 1166 kit in his ED and I rode it the other day. It was a wheelie monster with gobs of low end and top end. Cams degreed 105/107 with WebCam .340s. I was jealous.

move those numbers up 2-3 maybe 4 degree's on both cams and a person may just be even more shocked
note:
*with more than a stock head*
*some bottom end loss*
*still pulling hard when it hits the rev limiter @10,500*
*this will works for semi big-boys*

[chef1366]

move those numbers up 2-3 maybe 4 degree's on both cams and a person may just be even more shocked
note:
*with more than a stock head*
*some bottom end loss*
*still pulling hard when it hits the rev limiter @10,500*
*this will works for semi big-boys*

I had mine 110/110 and it was a cannon at around 6000. But that was a thing of the past.
I'm going to degree my 1230 more on the 105/107 for the great bottom end. Good for canyon carving.

[cavehamster]

Minor progress. Finished taking the engine apart. Didn't find anything else amiss in there outside of that oil pump bolt. Must have been loose for a while, the head of the bolt is pretty well chewed. The crank doesn't appear twisted, I did roughly measure it before removing the heads. A local machine shop here says they can weld it, I'll see if they still say that when I show up with it, haha.



The oil pump has some minor scoring on its face and the side cover. I have not measured it out just yet to verify it is within spec.



Transmission looked just fine



Had a bit of gunk inside in the oil pan and etc, probably pretty normal for sitting for 15 years. I plan to get the oil gallery plugs out and take the block out to be hot tanked while I am working on the crank and saving for the 1166 kit, and then pull a posplyr and paint the whole thing, hehe. I really like that black with polished fin tips look.

What should I use to seal the crank case halves? Obviously whatever I use, I should only use a little of it.

I'm also now looking for some throttle bodies I can make fit this engine, and getting my schematics into software for the MegaSquirt so I can make a custom board to fit on the bike. I suppose I could get a MicroSquirt, but their stuff is based off the v2.2 board, and I'd prefer to go to the v3 design. Whatever I end up with, I'll be posting my design for anyone else that wants to use or modify it.

[rapidray]

For sealing the case halves, from a Suzuki dealer, Threebond 1207B is what I use(& the shop manual calls for) & I've never had a leak or issue with it yet. Ray.

[motoCYCHO]

The guy on the ZX-14 should be in the low to mid nines stock. You looked more experienced than he did.

Dude.. I weight 295 lbs suited and we are racing at 4200 ft elevation with what has to be the worst prepped track in the US. 155 lb dude I race out there, also on a zx-14, only running in the 9.85. Drag racing motorcycles is hard and everyone's got a damn opinion, don't they? Tell ya what chef1366, bring your best game out to that track and let's see what you can do.

Worst track: (Yeah.. the first 100 ft or so is uphill!)


Not to take away from Steve or anything... he is doing a great job on that GS and he will be a force to recon with soon enough.


oh.. BTW chef1366, I know I suck. I run what I run. Bet I can still beat you tho.

[cavehamster]

Dude.. I weight 295 lbs suited and we are racing at 4200 ft elevation with what has to be the worst prepped track in the US. 155 lb dude I race out there, also on a zx-14, only running in the 9.85. Drag racing motorcycles is hard and everyone's got a damn opinion, don't they? Tell ya what chef1366, bring your best game out to that track and let's see what you can do.

Worst track: (Yeah.. the first 100 ft or so is uphill!)


Not to take away from Steve or anything... he is doing a great job on that GS and he will be a force to recon with soon enough.


oh.. BTW chef1366, I know I suck. I run what I run. Bet I can still beat you tho.

Man, don't I look like a goof in this photo. At least I tucked in, I was forgetting to do that until half track for a good while there.

Makes me miss drag racing season *sniff*

[chef1366]

I'm building a motor as we speak so I'll take you up on that offer.
I weigh the same as you do so it will be a better match.

[madjack57754]

If your going to have the local "machine shop" weld your crank you may want to rethink this. They will have no way to check the balance and I haven't seen one yet who is truely equiped to do it right.
Take what I'm telling you to heart. I run a metal fab/welding shop and I send my cranks to a pro to make sure it's done right. I can't tig the center pin and I doubt your local shop will be able to.
Ray would Know more about this.

[cavehamster]

If your going to have the local "machine shop" weld your crank you may want to rethink this. They will have no way to check the balance and I haven't seen one yet who is truely equiped to do it right.
Take what I'm telling you to heart. I run a metal fab/welding shop and I send my cranks to a pro to make sure it's done right. I can't tig the center pin and I doubt your local shop will be able to.
Ray would Know more about this.

A good point. When I talked to them, they said they could handle it, but they have not seen the crank just yet either, so... Do you have a recommendation for someone else to weld it? I'm hoping to not have to spend a fortune to just get it welded

In regards to boring the cylinders, does anyone know if there would be any reason a normal automotive machine shop wouldn't be able to handle that, or should I find someone to ship them to for work?

I plan on getting the crank resolved within the next week, getting the small internal parts together, and a gasket set, so I will be ready to put the crankcase back together within the month. Pistons will have to wait a few paychecks, but with any luck, the engine will be whole again by the end of the year and ready to be broken in so I can get busy with the EFI conversion.

Thanks!

[chef1366]

Dude.. I weight 295 lbs suited and we are racing at 4200 ft elevation with what has to be the worst prepped track in the US. 155 lb dude I race out there, also on a zx-14, only running in the 9.85. Drag racing motorcycles is hard and everyone's got a damn opinion, don't they? Tell ya what chef1366, bring your best game out to that track and let's see what you can do.

Worst track: (Yeah.. the first 100 ft or so is uphill!)


Not to take away from Steve or anything... he is doing a great job on that GS and he will be a force to recon with soon enough.


oh.. BTW chef1366, I know I suck. I run what I run. Bet I can still beat you tho.

Was the GS at sea level going down hill and you at 4200 feet going uphill?

[chef1366]

http://www.youtube.com/watch?v=vNag7Y3dL8s

[cavehamster]

http://www.youtube.com/watch?v=vNag7Y3dL8s

Yours?

Stupid 10 char min post limit...