285-300bhp V4R?

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Time will tell. I traded messages with the guy via FB. Seems nice enough but also questionably knowledgeable. Might have just been a bit evasive though - not wanting to divulge sensitive information.
 
I think longevity would factor into it. I wouldn't expect to get 25,000 miles out of that engine.

The stock bike would already be a wheelie monster if not for the torque limits and wheelie control. It looks like they have an extended swing arm, I'd imagine they'd have to work on mitigating it.
 
Went into the shop and looked at the upper and lower case halves. Looked at the crank in the case. I don’t see much possibility in a bore increase due to the limitations of the casting walls and even less opportunity for a stroke increase considering the journal placement.

Additionally, considerable jabber about the pipe but zero on the intake side. 70hp via a displacement increase is going to warrant modification of the intake side. More jabber about the lightweight cushless drive yet the showpiece has a Sitta flange and sprocket. Many things not adding up here. To top the cake if you’re going to try and “wow” someone with verbiage “Aerospace” is one word fellas.
 
bp_SFV4 said:
I think longevity would factor into it. I wouldn't expect to get 25,000 miles out of that engine.

The stock bike would already be a wheelie monster if not for the torque limits and wheelie control. It looks like they have an extended swing arm, I'd imagine they'd have to work on mitigating it.
Click to expand...

Streetfighter swingarm apparently. Marginally longer.

It seems though that dyno might be a little optimistic… stock V4S with SC exhaust making 213 at the wheels?


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That's a little more that slightly optimistic. I don't think even if they are jacking up rear tire pressure you could get a stock V4S with a SC exhaust to read that high.
 
endodoc said:
Went into the shop and looked at the upper and lower case halves. Looked at the crank in the case. I don’t see much possibility in a bore increase due to the limitations of the casting walls and even less opportunity for a stroke increase considering the journal placement.

Additionally, considerable jabber about the pipe but zero on the intake side. 70hp via a displacement increase is going to warrant modification of the intake side. More jabber about the lightweight cushless drive yet the showpiece has a Sitta flange and sprocket. Many things not adding up here. To top the cake if you’re going to try and “wow” someone with verbiage “Aerospace” is one word fellas.
Click to expand...

Lol. “Arrow space”
 
craig bush said:
Lol. “Arrow space”
Click to expand...
Clown show. They are throwing out “teaser tech” to entice peoples interest to shop at their store which has the same stuff everyone else sells and not surprisingly, nothing they have been talking about for the last 2 years is available on the site.

That real pic of the cushless drive looks exactly like the one Warren Machine made and abandoned when the lifespan was zero (yes there is a reason for the “cushion”) The harmonics and backlash of the drive with no give smoked the splines rather quickly. Nice paint though and I do like the yellow headlights.
 
Last edited:
endodoc said:
Clown show. They are throwing out “teaser tech” to entice peoples interest to shop at their store which has the same stuff everyone else sells and not surprisingly, nothing they have been talking about for the last 2 years is available on the site.

That real pic of the cushless drive looks exactly like the one Warren Machine made and abandoned when the lifespan was zero (yes there is a reason for the “cushion”) The harmonics and backlash of the drive with no give smoked the splines rather quickly. Nice paint though and I do like the yellow headlights.
Click to expand...

I saw that ‘paint’ as a decal kit somewhere, can’t remember where, maybe Vulture Bike.
 

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