Freestyle Who knows about DASA 90/90 motors?

[96superjet]

Saw this on ProRiders Instagram and wonder what a DASA 90/90 motor is??? Anybody have a clue?

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[Polish jet pilot]

90mm bore, 90mm stroke??

 

[96superjet]

90mm bore, 90mm stroke??

Sounds reasonable. Who has that CC spreadsheet handy which calculates displacement when you fill in bore and stroke? Time to check Google.


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[96superjet]

Sweet!!!

https://spicerparts.com/calculators/engine-displacement-calculator

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[96superjet]

OK, something about a 90mm bore x 90mm stroke doesn’t make sense. A stock 701cc is 81mm x 68mm stroke, right?

So a 90mm stroke would be +22mm stoker. I thought +16mm was the biggest stroker made. I’m not certain cause I don’t keep current on motors I can’t afford

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[JT_Freeride]

According to Dasa is 90 bore 90 stroke. +22mm stroke is crazy.

 

[Quinc]

big whoop. When is the 2 liter coming out!?

 

[iQRTurbo]

Would make sense in attempts to keep the transfer port area large by keeping the bore small and gaining the displacement with stroke but geez,,, +22 stroke seems like it would rev out like an Allis Chalmers farm tractor. Ride reports and World Finals around the corner will tell the tale.

 

[Nsmith212]

Recently I heard it was a 20mil stroke “square” motor, but now this says they are 90/90. Pretty pretty cool though, I know of a few guys running them and they seem to work pretty good!


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[Freakrider]

XS 1200 C-4 are 20mm stroker cranks and I assume C-5 is too.

 

[SmittySX]

XS 1200 C-4 are 20mm stoker cranks and I assume C-5 is too.

that's 66E compared to 62T

 

[Wetbuffalo]

These are custom cases too so doing a 22mm stoke would be reasonable. Good luck on reliability. Full comp only.

 

[Jetfiend]

Ride reports and World Finals around the corner will tell the tale.

I heard that Gomez and Zeski may have been running the prototypes since before 2018 WF - Podium and top 5 ain't bad!