Mods For 130hp From 82 GS1100E?

[Anonymous]

To all of the performance guru's out there - what is the most reliable, cost effective way to get to 130rwhp from an 82 GS1100E? I am thinking of an 1166cc Wiseco kit (10.25: 1 compression), 36mm Mikuni flat slide carbs, hotter cams, light port clean up and a 4-1 exhaust system. Will this get me to 130hp or not?

It is for a street bike, so it must run on premium pump gas (92 octane locally) and start every time, idle OK and not overheat instantly in stop and go traffic.

What say you?

Mark

 

[Anonymous]

darn close if not more. Slightly over sized valves shorter guides to go with the hot cams and most definitely slotted cam gears. you will get gobs more power from just degreeing stock cams.
While you are doing that much souping i believe you want to use 750 oil pump gears and a top oil kit. I don't know enough about the kit but lots of our tribe use them. do all that and you might even beat a V ROD.
OOPS i forgot the 530 chain mod. there will be many more suggestions. I just happened to [pop on when you posted the question.
I have a modified clutch basket and an inner basket from an 1150. HD springs. I think your bike has the old style inner basket and you may not easily change it without buying another pressure plate and the bolt spacers for the springs.
I'm out of remembering..Good luck. that bike is a beast in its stock form. When you install the 1168 pistons and 10.25/1 compression you will notice a huge difference. I haven't done my head yet but head work returns high dividends. OK OK ill shut up-- you just mentioned an 1100e-- I cant help it :lol:

 

[Billy Ricks]

OOPS i forgot the 530 chain mod.

Santa's bringing me sprockets and chain to do a 520 conversion. Vortex sprockets and RK Gold X-ring chain.

 

[Guest]

Hey Marky, mark,

Sounds very close to my set up....a couple of gs drag racers have estimated my set up at 130 at the wheel. I am running 33 smoothbores which I am told is one of the best performing carbs or the 1100 gs for the street.
An oil cooler is always a good idea to increase volume and bring down temp for these bad boys.

katman

 

[Anonymous]

OOPS i forgot the 530 chain mod.

Santa's bringing me sprockets and chain to do a 520 conversion. Vortex sprockets and RK Gold X-ring chain.

Good luck on that mod. Billy. If the sun ever comes out again i will finally get my clutch basket back in and then will look into that chain item Do you recall some figures that estimate the power gain from going from a standard 630 O ring to a to a 530 non O ring.
I notice you said a 520 mod. Is that because the 750 starts with a 530 or are my number just jumbled as ususal.

Just a note on my basket repair.
I fried the plates and the fibers so i am instaling all new ones this time.
My bike came with 10 and 10 but Jay Regan is having me convert back to the 9 and 9 setup because the fibers and steels are wider and have less of a tendancy to to cut into the baskets. Some guys paint thier older 1100e motor black an I convert back to the older style clutch.. Who can account for Biker mentality :lol:

 

[Anonymous]

Scotty: What did you do to your bike while I was away this summer!?

Steve

 

[lhanscom]

Hey Billy, how difficult, and what are the benefits of going to the 520 setup over the 530? I'm in need of new sprockets and chain myself, and might look into it if it's worth it.

 

[Guest]

520 is not recomended for street use...not as strong as 530. Won't stand up to extended use

 

[lhanscom]

520 is not recomended for street use...not as strong as 530. Won't stand up to extended use

Don't they use 520 on modern day sportbikes? My 700 doesn't have as much horsepower as a modern 600. Why would there be a problem?

 

[Anonymous]

Most current sport bikes use a 530 as stock. Many people put 520 on in place of the 530 with no trouble, though. The 520 is lighter and the sprockets are lighter, reducing both rotating and unsprung mass for better handling and faster acceleration. Superbikes and MotoGP bikes all run 520 chain with no problems, so I wouldn't worry too much about it unless you have 180hp+ and slicks on your bike.


Mark

 

[Guest]

Superbikes are not using their chains and sprockets for many miles.....Road bikes are. I don't think he is going to notice the unsprung mass difference in his street machine but He might want to go with the heavier duty 530 for reliability and longjevity.

The decision of course is his.

 

[Anonymous]

Scotty: What did you do to your bike while I was away this summer!?

Steve

Basicly i have been nursing it till i was able to get the clutch baskeT done. i cooked it a year ago AND NEVER COULD GET TO IT. I HAVE BEEN SETTING UP A NEW AIR BOX AND CARBS FOR WHEN I GET THE HEAD RE DONE AND THE CAMS ETC. THATS It.
I just read what others are doing to thier machines and dream.

 

[Billy Ricks]

A good quality 520 chain is almost as strong as 530. Everything about the two spec-wise is the same except for width. The one I'm getting has a tensile strength of nearly 8,000 and wear rating of 750. A basic non o-ring chain has a wear factor of about 100. And with Vortex sprockets you have virtually no runout from sprockets that aren't perfectly round.
http://www.mototechnw.com/ You'll have to click on the sprocket & chain page.

 

[Billy Ricks]

Luke,
To get back to your question, with my wheels I just run the Katana 600 conversion. The '88-'89 wheels are the same as the Kat's. '90 and up are different. The early '90s 5.5" wheels are supposed to use the same cush layout as the GS. You could probably just use the early 90s conversion and it would fit. Less friction and ligter weight are the benefits. You lose less hp to the rear wheel.

 

[Hoomgar]

I have to jump in here and tap some of theis knowledge being passed around. I am rebuilding (engine top and bottom) my 78 GS1000 and one of the things that needs replacement anyway is the chain and sprockets. My bike chews these things up at a rate of at least one chain every year and front sprocket every 2. The rear still looks good. Is this nomal? What chain/sprocket combo should I run on this old beast?

It is being bored to an 1100 basically and the crank has been trued and welded as well as a new clutch basket and clutch. I Was thinking of going back to the 15 tooth stock in the front since the 14 I am running is chewed up now and I didn't really like the loss of top end/lower RPM. The rear currently is 42 tooth.

Please pour out your experience on me. I need advice.

 

[Anonymous]

My bike chews these things up at a rate of at least one chain every year and front sprocket every 2. The rear still looks good. Is this nomal? What chain/sprocket combo should I run on this old beast?

Normal? Depends on how much you ride in a year. A good quality O-ring chain should last 15,000+ miles if well cared for. A set of steel sprockets should last two chains if the chain is changed before it is so stretched out it begins to really eat the sprockets. An aluminum sprocket (rear, that is) will likely only last the same as one chain. It is best to change both sprockets and chain at the same time for the optimal wear/life of the chain, but it is not absolutely necessary. You can run the stock 630 or 530 or 520 and all will be fine. If long life is important, the stock size is best, then the 530, then the 520, but it shouldn't be a major difference between them. If performance is most important, use the 520.


Mark

 

[Guest]

I would go with a 530 conversion with a ratio of 15/42 which is stock 1100 gearing.
check your alignment...you may be chewing up chains and sprogs because of a misaligned chain... they should last far longer than one year.

katman

 

[Hoomgar]

Thanks guys. I think I will do just that and go with the mid 530 and a 15/42 combo. I want a balance of performance and wear so that sounds good. When I droped to 14t in the front I did gain some snot out of the hole but I feel that after the rebuild I am not going to need this and can get my cruising comforts back a bit.

The bike dyno'd at 63 hp before we tore it down. Sad, very sad. I can't wait to see what it does when it is done.

 

[Anonymous]

Hey Guys
Please help with with some info. How much horsepower does an 1981 GS1100E have in stock trim. I do plan on putting a HC piston kit to run on pump fuel, carbs with K&N's, cams and a pipe' How much HP can I expect at the wheal. Can anyone sugest what type or model of components I will need to get some good gains.
Thanks for the help!
Archie

 

[robinjo]

Hey Guys
Please help with with some info. How much horsepower does an 1981 GS1100E have in stock trim. I do plan on putting a HC piston kit to run on pump fuel, carbs with K&N's, cams and a pipe' How much HP can I expect at the wheel. Can anyone sugest what type or model of components I will need to get some good gains.
Thanks for the help!
Archie

I had my '81 Katana 1100 dyno'd 2 months ago and it had a little over 87 HP at the rearwheel using 107.5 main jets that where in there instead of the recommended 112.5's for the European model so yours should be putting out about that amount if it's in good condition.