Pistons compressions 11:1 to 14:1
#21
Pistons compressions 11:1 to 14:1
Originally posted by: crazypainter
A friend went from the woods 11.5 to the 14-1 had it dynod with that being the only change, he picked up 4 hp. That was on gas.
A friend went from the woods 11.5 to the 14-1 had it dynod with that being the only change, he picked up 4 hp. That was on gas.
p.s. it was like 4.6 hp on a crap dyno[img]i/expressions/face-icon-small-wink.gif[/img]
so in reality its like 9 hp on certain dynos[img]i/expressions/face-icon-small-wink.gif[/img]
#22
Pistons compressions 11:1 to 14:1
Originally posted by: shmee
does that mean that we are friends!!? [img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-happy.gif[/img]
p.s. it was like 4.6 hp on a crap dyno[img]i/expressions/face-icon-small-wink.gif[/img]
so in reality its like 9 hp on certain dynos[img]i/expressions/face-icon-small-wink.gif[/img]
Originally posted by: crazypainter
A friend went from the woods 11.5 to the 14-1 had it dynod with that being the only change, he picked up 4 hp. That was on gas.
A friend went from the woods 11.5 to the 14-1 had it dynod with that being the only change, he picked up 4 hp. That was on gas.
p.s. it was like 4.6 hp on a crap dyno[img]i/expressions/face-icon-small-wink.gif[/img]
so in reality its like 9 hp on certain dynos[img]i/expressions/face-icon-small-wink.gif[/img]
#25
Pistons compressions 11:1 to 14:1
Originally posted by: shmee
youll still get to run crazypainter sometime and then you will know[img]i/expressions/face-icon-small-wink.gif[/img]
youll still get to run crazypainter sometime and then you will know[img]i/expressions/face-icon-small-wink.gif[/img]
#26
Pistons compressions 11:1 to 14:1
No crazy's bike isn't the silver bullet. But we'd swap wins most of the time. The dyno comment comes from a very unforgiving dyno here. I know a guy that has the hpr end cap, intake, lectron, had it dyno tuned only 42 hp.Thats the kit that hpr says is 54 hp. Same dyno mine was 52. LS mine dynos the same another DS with hpr cams 14-1 a few other goodies supposed to be a 60 hp kit. Came up with 50 even. So the numbers are just bragging rights.
#27
Pistons compressions 11:1 to 14:1
crazypainter i gain alot more in the lower and mid ranges than i did on top. jim said i gained 8-10 hp overall from when i had it on the dyno when it was stock. you just have to ingore peak hp and see what you gained between dyno's on the same dyno between mod's
#28
Pistons compressions 11:1 to 14:1
Originally posted by: flyinds
crazypainter i gain alot more in the lower and mid ranges than i did on top. jim said i gained 8-10 hp overall from when i had it on the dyno when it was stock. you just have to ingore peak hp and see what you gained between dyno's on the same dyno between mod's
crazypainter i gain alot more in the lower and mid ranges than i did on top. jim said i gained 8-10 hp overall from when i had it on the dyno when it was stock. you just have to ingore peak hp and see what you gained between dyno's on the same dyno between mod's
#30
Pistons compressions 11:1 to 14:1
I've stated this before on many occassions, but you have to understand- if you are dynoing on knobby tires (and I'm assuming that's the case in most of these situations), don't even think you can talk about hp peaks or hp gains. Take a 50cc 5hp bike and the losses would be minimal - off a few % at most; upgrade that bike until you have a 1000hp V8 and the losses would be phenomenal - I can see being off by 75%.
The faster the engine accelerates ( and that is more important to us than hp numbers, right? - I mean who cares if you make a 1000hp, but it takes all day to get there), the higher the losses because the bike spins the tires harder and faster. A slow revving, low torque machine will dyno higher on knobby tires than a fast revving, higher torque machine.
Bolt on a slug piston that actually accelerates slower than the one you had and you'll show more hp and torque than your stock one. Drop in a good one, you can actually read lower numbers. Knobby tires, knobby tires, knobby tires - if these are being used- the results don't belong in dyno conversations.
222
The faster the engine accelerates ( and that is more important to us than hp numbers, right? - I mean who cares if you make a 1000hp, but it takes all day to get there), the higher the losses because the bike spins the tires harder and faster. A slow revving, low torque machine will dyno higher on knobby tires than a fast revving, higher torque machine.
Bolt on a slug piston that actually accelerates slower than the one you had and you'll show more hp and torque than your stock one. Drop in a good one, you can actually read lower numbers. Knobby tires, knobby tires, knobby tires - if these are being used- the results don't belong in dyno conversations.
222