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So I had my 650 dynoed this weekend.

  • Thread starter Thread starter AF_Bill
  • Start date Start date
Sonny, does the beull have aluminum heads?
My point is that aluminum disipates the heat faster and you can usually run 1 full point more compression with the same octane fuel than cast steel.

Eric
 
yes it has aluminum heads with bath tub cambers and piston match the same domed bath tub shape
 
Is it a L shaft drive? I would think that our shaft drive could eat that up along with age. Crazy to think this is 50hp, and feels fast to me. I agree about the perception of speed. It feels crazy fast to me on my buds 79 KZ1000 with fresh wisseco internals broken in this year, pods and a kerker pipe and then I ride another friends 04 Z1000 and that thing can hardly keep the front wheel on the ground but it dosnt really fell as fast. I think its something about the new fuel injected fours. Its cool in a totally different way. Just like going 80mph in a old MG or 140 in a New Audi.
 
sonnygs1100 said:
how much should a gs 1100 put out ?
Click to expand...

Pretty sure a stock GS1100 4V put out anywhere between 88-95 rear wheel HP, the the 80-81 were on the lower end of the range and the 83 model was the highest of the bunch since it had the bumped cam. Suzuki advertised the GS 1100's between 105-108 BHP.

Suzuki also claimed 90 BHP for the GS1000 2V models but when Cycle dynoed the original 1978 C model it only put out 72.5 rear wheel HP
 
srsupertrap said:
Pretty sure a stock GS1100 4V put out anywhere between 88-95 rear wheel HP, the the 80-81 were on the lower end of the range and the 83 model was the highest of the bunch since it had the bumped cam. Suzuki advertised the GS 1100's between 105-108 BHP.

Suzuki also claimed 90 BHP for the GS1000 2V models but when Cycle dynoed the original 1978 C model it only put out 72.5 rear wheel HP
Click to expand...
The 83 1100E/ES, according to the sweet brochure from the showroom i have for it, as well as the factory service manual, states a BHP rating of 111.
 
srsupertrap said:
Pretty sure a stock GS1100 4V put out anywhere between 88-95 rear wheel HP, the the 80-81 were on the lower end of the range and the 83 model was the highest of the bunch since it had the bumped cam. Suzuki advertised the GS 1100's between 105-108 BHP.
Click to expand...

Despite the more aggressive cams, the '83 produced identical hp figures to the EZ, depending on which mag you go by (I have the M'cycle Reports compilation that lists all the tests, but haven't looked at it in years now)...usually listed anywhere between 108 to 111 bhp (at the crank I'm assuming...which would put power at the wheel at less than 100) The benefit of the changes made to the airbox, cam etc. was mainly increased torque, IIRC. :-k

Suzuki insiders have only recently revealed the real story.....painting that beautiful engine black for '83, inexplicably instantly resulted in lower hp figures across the board....engineers were sent scrambling to make subtle changes to find and restore the lost power, which they did, to their credit.^o

Tony.
 
Last edited:
Mysuzyq said:
Despite the more aggressive cams, the '83 produced identical hp figures to the EZ, depending on which mag you go by (I have the M'cycle Reports compilation that lists all the tests, but haven't looked at it in years now)...usually listed anywhere between 108 to 111 bhp (at the crank I'm assuming...which would put power at the wheel at less than 100) The benefit of the changes made to the airbox, cam etc. was mainly increased torque, IIRC. :-k

Suzuki insiders have only recently revealed the real story.....painting that beautiful engine black for '83, inexplicably instantly resulted in lower hp figures across the board....engineers were sent scrambling to make subtle changes to find and restore the lost power, which they did, to their credit.^o

Tony.
Click to expand...
HAH! That paint is some heavy stuff eh?? LOL
 
TheCafeKid said:
HAH! That paint is some heavy stuff eh?? LOL
Click to expand...

Even heavier.....t'was thermodynamics at work, Josh.:-\\\

[ * First law of thermodynamics, about the conservation of energy:

The change in the internal energy of a closed thermodynamic system is equal to the sum of the amount of heat energy supplied to or removed from the system and the work done on or by the system.]

Tony.
 
Mysuzyq said:
Even heavier.....t'was thermodynamics at work, Josh.:-\\\

[ * First law of thermodynamics, about the conservation of energy:

The change in the internal energy of a closed thermodynamic system is equal to the sum of the amount of heat energy supplied to or removed from the system and the work done on or by the system.]

Tony.
Click to expand...
Hrmmmmm Sounds really smart...But, i think we should test it ;):D
 
TheCafeKid said:
Hrmmmmm Sounds really smart...But, i think we should test it ;):D
Click to expand...

Rest assured, Posplayer will be along shortly, to shoot it down.:)
In reality, IIRC black engines actually have the advantage, in terms of shedding heat.
Tony.
 
thats why I powdercoated my motor wrinkle black.... get the best of both worlds....
black dissapates heat better... the wrinkle finish increases the surface area.. ;)
 
CHT, EGT, jetting, engine color, and header material/color.

diffrence in 0.010s....:D
 
Thinkin about it now, I'm gonna put tons of Suzuki racing stickers on my bike. That'll make it go faster!!! Hell, if it works for the kids in the rice bruners it'll work for me. :dancing:


:rolleyes:
 
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