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Horse Power Question

  • Thread starter Thread starter Boozy Creek Beast
  • Start date Start date
B

Boozy Creek Beast

Guest
I have a 1980 GS1100E with an 1166 Big Bore Kit, Stage 3 Jet Kit, and a V and H Megaphone header. My question is: Has any one ran this configuration across a Dyno? I am unable to find a shop with a Dyno to test my results. I would like to find out if anyone has ran this configuration and what kind of results these Mods produced! I am sure that I will be happy with the result but since I am still looking for a shop with a Dyno that can help me get the best results. It would be nice to know what results of other GS1100's have obtained!!!!!

Horse Power: ?
Compression Ratio: ?

Thanks,
The Beast
 
Boozy Creek Beast said:
I have a 1980 GS1100E with an 1166 Big Bore Kit, Stage 3 Jet Kit, and a V and H Megaphone header. My question is: Has any one ran this configuration across a Dyno? I am unable to find a shop with a Dyno to test my results. I would like to find out if anyone has ran this configuration and what kind of results these Mods produced! I am sure that I will be happy with the result but since I am still looking for a shop with a Dyno that can help me get the best results. It would be nice to know what results of other GS1100's have obtained!!!!!

Horse Power: ?
Compression Ratio: ?

Thanks,
The Beast
Click to expand...


My guess would be about 115-120 at the crank
 
Wiseco 10.5-1 1166 pistons, stock head with no porting, stock cams. I was running Star dragpipe, msd and dyna s ignition, and 36 Mikuni carbs.

dyno.jpg
 
rosco15 said:
Wiseco 10.5-1 1166 pistons, stock head with no porting, stock cams. I was running Star dragpipe, msd and dyna s ignition, and 36 Mikuni carbs.

dyno.jpg
Click to expand...

Wow, those are great numbers. You're making more peak torque at lower RPMs than a newer GSXR 1000!

gsxr1000.jpg
 
Are you sure that torque reading is right, if it is than you have more torque than my truck with a 3 liter v6. It just seems way above the first run.
 
The 181.7 is wrong. I'm not sure why it printed it out like that. The torque was around 87. Peak HP was 128.
 
Still more torque than newschool sportbikes. That thing must accelerate like a beast!
 
rosco15 said:
The 181.7 is wrong. I'm not sure why it printed it out like that. The torque was around 87. Peak HP was 128.
Click to expand...

Whew, thanks for clairifying that! I didn't know what was going on.

Still, great numbers, especially if you lightend the bike up a bit somehow.
 
I'll bet that with a good cam and an ignition advance curve to match, 150hp is right in line.
Cross my fingers. Thats what Im shooting for.
 
hosepepper

hosepepper

My 498 lb 81 1166 10.25-1 ran low 9.8's @ 138mph with stock head,g3 cams,38mm flatslides,stock ignition,and V&H dragpipe,oh yeah on a crappy dunlop street tire.These engines make healthy low/midrange grunt,thats what makes them a good choice for hopped up street rides.
 
Hey Rosco. What are you running for a rear tire????? BTW Nice numbers.

My 1166 would make your insides wiggle too. It is a great combo you have. Lots of folks really under estimate what these old gs bikes can put out.:-D
 
rosco15 said:
It's a dragbike so I'm running a M/T slick.
Click to expand...
I was asking because as i get acustomed to my new engine, I dont believe my narrow one sized over tire will do the job. I ride it only on the street. I really dont know what to do in the way of a stretch and wider tire and still have the bike handle properly.
 
early 90's gsxr wheels are very cheap on ebay lately,a 5.5" wide rim with a 180 tire would be a good choice.
 
hauspowda

hauspowda

the 5.5" rim is the widest you can fit in a stock arm.you would also have to use an offset front sprocket.search the old posts,a lot of info on this subject.
 
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