Street Stock 250cc 4-stroke twins

[RDjase]

Holy crap, the RG is lighter yet more powerful and still 100cc less. Oh well, that's a two stroke...

2 strokes rule Yamahas are better tho

[rachprice]

2 strokes rule Yamahas are better tho

No way
Suzukis!!

[RDjase]

No way
Suzukis!!

Yeah , there ok, ive got 3 lol, A 89RGV, T20(1968 250 twin race bike) and a a100 bucket

I got more yamahas tho

[RDjase]

Isn't it just
power/weight

Therefore
the 150 (26hp) 19.39kW/98kg = 0.198kW/kg
the hyosung (36hp) 26.85kW/170kg = 0.158kW/kg

That would mean the 150s have a higher power to weight by your numbers (as 0.198 is a larger number than 0.158)
Though I think the RG's are more than 98kg

What HP figures , at crank or rear wheel?

Its usualy easier to lose weight than increase HP (on race bikes any way)

HP cost $ (once u have sorted airboxs and jetting),
weight means unbolting suplus road gear

[EJK]

Yeah , there ok, ive got 3 lol, A 89RGV, T20(1968 250 twin race bike) and a a100 bucket

I got more yamahas tho

Sounds like a keen two stroke collector! Very nice!

[rachprice]

What HP figures , at crank or rear wheel?

Its usualy easier to lose weight than increase HP (on race bikes any way)

HP cost $ (once u have sorted airboxs and jetting),
weight means unbolting suplus road gear

Oh yeah I was just pointing out how to calculate it correctly by his numbers which were wrong anyway

[Hiflyer]

I do know what is is lol

and he still got it wrong explaining it to you.

obviously the hyo has a better power to weight cos it has less power and more weight

Well at least his goes at the moment

[RDjase]

Oh yeah I was just pointing out how to calculate it correctly by his numbers which were wrong anyway

Chaos getting his figures wrong ...........Never

[RDjase]

and he still got it wrong explaining it to you.

obviously the hyo has a better power to weight cos it has less power and more weight

Well at least his goes at the moment

Whats wrong with your bike?

Chaos has got a huge advantage with power to weight over you at mo aye lol,

How fast can you push a hyosung?

[Hiflyer]

How fast can you push a hyosung?

probably faster than he can ride

[RDjase]

probably faster than he can ride

Thats just mean hes just about there, he will be at the track soon as

When is your Track/Race day happening Chaos?

[RDjase]

What HP figures , at crank or rear wheel?

From memory(very vague) Rear wheel HP is 85% of crankshaft, I will find some old Dyno sheets and see

[gatch]

the division of power over weight

the 150 2's have 26hp over 98kg- so 1 / 3.7
the hyosung has 36hp (my one) over 170 (wet) -- so 1 / 4.2

power to weight the hyosung has more power to weight

but the 150 will probably faster in the corners.

Ha, hahahahahahahahaha

Move over Einstein..

[ducatilover]

the division of power over weight

the 150 2's have 26hp over 98kg- so 1 / 3.7
the hyosung has 36hp (my one) over 170 (wet) -- so 1 / 4.2

power to weight the hyosung has more power to weight

but the 150 will probably faster in the corners.

No mate, 33hp on the carburetor models and 28hp on the injected. 171kg dry, your headlight and other bits weigh fuck all.

Isn't it just
power/weight

Therefore
the 150 (26hp) 19.39kW/98kg = 0.198kW/kg
the hyosung (36hp) 26.85kW/170kg = 0.158kW/kg

That would mean the 150s have a higher power to weight by your numbers (as 0.198 is a larger number than 0.158)
Though I think the RG's are more than 98kg

He got it wrong Rach, you win.

But it would appear that you are wrong with your numbers anyway (who would have thought?)

http://www.motorbikes.be/en/Suzuki_R...amma_1998.aspx
RG 150 1998
Power = 37hp
Weight = 122kg (dry)

http://www.bikez.com/motorcycles/hyo...250_r_2009.php
GT250R 2009
Power = 27.8hp
Weight = 171kg (dry)
Would appear you got your HP's mixed up huh?

He was only 3hp off on his hyo [carbie model] But he also said by removing the retard wire and cutting the baffles he got 16hp....nope. The rg150 will eat the arse off the hyosung gt250000p all day long.

[ducatilover]

What HP figures , at crank or rear wheel?

Its usualy easier to lose weight than increase HP (on race bikes any way)

HP cost $ (once u have sorted airboxs and jetting),
weight means unbolting suplus road gear

hahahahahaha the hyo makes about 24-25hp at the wheel on the carbie model.