SHR860 vs RK860
- Thread starter nuggetau
- Start date
I believe it was answered here
"RKT numbers ...there his numbers (his porting, domes, timing, base gasket, valve cut, piston cut) from his R/D...my numbers are from my dyno...if I dynod on his and his on mine who knows...dynos #'s can/are different..."
Boss
I agree with that, but it's sort of like saying here is how you make a chocolate cake. Add some shortening, some flour, some sugar, some salt, some chocolate and some baking powder. Without the quantity/variations and variables in quality of the components you can get anything from a brown brick that is inedible to down right delicious.
I wanted to know exactly what they were doing differently to arrive at what they thought was the best performance. I wasn't looking for any trade secrets, just all the know facts and variables and how they effected performance.
For one reason or another they don't seem willing to provide that detailed info (that is their prerogative), and I have no desire to "goad" them into it. Their answers may have answered what some others wanted, it just wasn't what I was looking for, and I'm OK with that.
This will be my last post on this thread.
I agree with that, but it's sort of like saying here is how you make a chocolate cake. Add some shortening, some flour, some sugar, some salt, some chocolate and some baking powder. Without the quantity/variations and variables in quality of the components you can get anything from a brown brick that is inedible to down right delicious.
I wanted to know exactly what they were doing differently to arrive at what they thought was the best performance. I wasn't looking for any trade secrets, just all the know facts and variables and how they effected performance.
For one reason or another they don't seem willing to provide that detailed info (that is their prerogative), and I have no desire to "goad" them into it. Their answers may have answered what some others wanted, it just wasn't what I was looking for, and I'm OK with that.
This will be my last post on this thread.
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Seriously, you don't expect these guys to tell you everything that they do for free do you? If you want exact settings and set-ups call the men, pay them for their knowledge, they spend a lot of money and time perfecting their stuff and no one should expect them to give that away.
It's like when guys come on and ask Dynamo Joe or Cudney what ramps, springs, etc. they put in their clutch kits, if they told everyone that, they wouldn't sell many kits, your paying not only for the products but for their many hours of testing and proving.
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T
:clock:
S
I agree, I think the question was answered with that statement........now TJ how am I suppose to bag on you now with that in your signature? Nice sled by the way....
T
I agree, I think the question was answered with that statement........now TJ how am I suppose to bag on you now with that in your signature? Nice sled by the way....
Thank you I hope it ends up being as good as my 08 was that I should have never sold for that damn assault.
Only to have fun...
SHR860R-
3.348" bore
3.342" piston
skirt trimmed .0*0 "
8 or 9 hole base gasket
ex port is raised, widened and re-radiused (substantial vs stock and 3 other BB builders)
sub ports are opened up/over transfers
exhaust valve mod (SHR spec)
intake area- general clean up/open (Rotax did very good here)
transfers just a clean up and degree change from sub intake to transfer
RKT/SHR head spec- .045-.047" squish, * degree on the squash angle, *mm squash width, comp set per customers riding
stock timing or plus 1 degree
460-470 main jets and a .030" shim
V-force/Boyeson reeds
SPI Y-pipe
= 176+ hp 115+ tq on MY dyno...BTW a stocker shows 148-150 hp on the same dyno...
RKT 860
same piston
same reeds
the rest???
I sorta know but sure aint gonna post it here...LOL
-BJ
T
Solid post BJ...Almost like you know something about what your doing??? LOL nah, that cant be
Jake
Jake
T
Only to have fun...
SHR860R-
3.348" bore
3.342" piston
skirt trimmed .0*0 "
8 or 9 hole base gasket
ex port is raised, widened and re-radiused (substantial vs stock and 3 other BB builders)
sub ports are opened up/over transfers
exhaust valve mod (SHR spec)
intake area- general clean up/open (Rotax did very good here)
transfers just a clean up and degree change from sub intake to transfer
RKT/SHR head spec- .045-.047" squish, * degree on the squash angle, *mm squash width, comp set per customers riding
stock timing or plus 1 degree
460-470 main jets and a .030" shim
V-force/Boyeson reeds
SPI Y-pipe
= 176+ hp 115+ tq on MY dyno...BTW a stocker shows 148-150 hp on the same dyno...
RKT 860
same piston
Arcic cat part number 3007-528
Piston Pin bearing 3008-503
Piston Pin 3006-501
thrust washers 3008-500 you need four
same reeds
the rest???
I sorta know but sure aint gonna post it here...LOL
Added replacement parts part numbers in bold.
T
Only to have fun...
SHR860R-
3.348" bore
3.342" piston
skirt trimmed .0*0 "
8 or 9 hole base gasket
ex port is raised, widened and re-radiused (substantial vs stock and 3 other BB builders)
sub ports are opened up/over transfers
exhaust valve mod (SHR spec)
intake area- general clean up/open (Rotax did very good here)
transfers just a clean up and degree change from sub intake to transfer
RKT/SHR head spec- .045-.047" squish, * degree on the squash angle, *mm squash width, comp set per customers riding
stock timing or plus 1 degree
460-470 main jets and a .030" shim
V-force/Boyeson reeds
SPI Y-pipe
= 176+ hp 115+ tq on MY dyno...BTW a stocker shows 148-150 hp on the same dyno...
RKT 860
same piston
same reeds
the rest???
I sorta know but sure aint gonna post it here...LOL
This is exactly why his 860 is in my sled! That my friends is a "stand up guy".:beer;
bb
that is why there are people waiting for there motor, no one gives you the service that bj dose. thanks BJ now lets all doo some riding
giddyup
that is why there are people waiting for there motor, no one gives you the service that bj dose. thanks BJ now lets all doo some riding
giddyup
X
Only to have fun...
SHR860R-
3.348" bore
3.342" piston
skirt trimmed .0*0 "
8 or 9 hole base gasket
ex port is raised, widened and re-radiused (substantial vs stock and 3 other BB builders)
sub ports are opened up/over transfers
exhaust valve mod (SHR spec)
intake area- general clean up/open (Rotax did very good here)
transfers just a clean up and degree change from sub intake to transfer
RKT/SHR head spec- .045-.047" squish, * degree on the squash angle, *mm squash width, comp set per customers riding
stock timing or plus 1 degree
460-470 main jets and a .030" shim
V-force/Boyeson reeds
SPI Y-pipe
= 176+ hp 115+ tq on MY dyno...BTW a stocker shows 148-150 hp on the same dyno...
RKT 860
same piston
same reeds
the rest???
I sorta know but sure aint gonna post it here...LOL
Thanks Johnny I got my Dremel out and just pulled the radiator plug. Mine should be 183 hp Dyno Monster in just a few days!
Thanks Johnny I got my Dremel out and just pulled the radiator plug. Mine should be 183 hp Dyno Monster in just a few days!
DOO I really want to know.....LOL-BJ
D
Sometimes you pay for a cake and get brown flour with water and some icing. looks OK...but tastes like he!!. Thank Gawd for good bakers like BJ and RKT who can take those original ingredients, grind 'em up, add the missing tastys, and re-cook at 325 for an hour. Mmmmmm, mmmmm, gooood.
I
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