Up and running Hyperformanc/R&R motor

[oh1deuce]

Boogerbe, Any chance you'll try Wayne's high velocity intake?

R&R helped them dial it in and they changed their castings to match. Seeing some timed 5th gear run comparisons would be nice.

Randy and Kalifornia aren't done with it yet, but so far the PSI has made some serious gains over the Mik45. Randy would have to jump in with the details.

[KingofCubes]

Kalifornia is a southern California Mik man but says this carb is very impressive, don't have the final results on Kevins bike yet but so far 10-12 more torque and horse and it does the 5th gear pull in 7 seconds, not bad for a "B" motor with a heavy rear wheel.
This 98" Skinner build got on the dyno for AFR tweeking and it'a a "B" also, 115/114 T&H in 7 seconds with no break in miles yet.

[oh1deuce]

Killer numbers with those pipes!

[Booggerbe]

Deuce, right now i am at the point of where is the next hp coming from. Ill just have to let the three top men give me some ideas. I am very impressed as of now and havent even had a tune yet. All the timing and carb settings are still as they were with the ole RP motor. damn thing is starting to SCARE me lol. Just might have to go to a pingle shifter. You no i am a old man lol NOT. So my answer to the velocity intake is not really in the thoughts as of now. Thanks Booggerbe

[oh1deuce]

I'm sure Wayne will mention the intake if he thinks it's worth doing.

I also agree with you on sticking with the 3:15 gearing.

[Ozzie In Arabia]

Originally Posted by Booggerbe

Thanks OZ, It is not in the intake or the forcewinder.I am not running a forcewinder at all. It is that Wayne (Speeds Performance) Is going to tune to the max and see just how much he can pull out of the motor.Then i (MIGHT) go with the PSI carb. Just depends on what the tune does. Yes the whole bottom end has been converted to the timken and more goodies done to the flywheels and so on. Randy says i cant tear this one up lol. I will tell you that i am not going to use the 3:37 gearing and dont really no what the dyno will show with the 3:15 gearing. Reason being that with the 3:15 gearing i put back into the primary for the break in time already pulls better than when i had the RP motor and the 3:37 gearing. H----l i couldnt shift the damm thing quick enough lol. (right BigMan lol) This motor already with 1,1000 miles with pull like a freight train compared to the ole RP. I even checked the fuel mileage last week and i came up with 45.4 mpg on two fill ups. It will be sept 27th with Wayne that i will post the Dyno result and see if i need to go any more with the PSI carb. Thanks again Randy and reggie . Booggerbe

Hello Boogerbe, I fugged this up.............I did not see you are running a carbed setup..............these old eyes...........thought you were running a 51mm EFI........... sweet setup there no matter what!


All the best, Ozzie

[Ozzie In Arabia]

Originally Posted by claydbal

ozzie, how would one know what length to increase intake runner? is there a formula? runner = stroke? im so confused. LOL

Hi Claybal,

There are quire complex formulas available these days to calculate the correct length and diameter of the intake and exhausts.

The correct formula calculates the time it takes the wave or pulse to travel from the exhaust valve down the pipe to the opening and then back up to the exhaust valve.

The intake has the same pulse traveling from the valve to the intake opening at the A/C and back to the intake valve.

The correct length of intake and exhaust combined with overlap and intake closing determines how much of a help this produces to get this wave to assist in cylinder fill on intake and produces free power..............or unlocks the available power.

There has been a recent attempt to create a variable length intake but it has not gone further due to particles getting sucked into the mechanism and causing the intake to stick.......I`m sure this will be the future of the intakes on motorcycles...............

Basically the longer the intake to a certain point creates TQ but bleeds HP off the top end.

The exhaust has a similar effect........shorter pipes give high top end numbers but nothing on the bottom end.........and vica versa.

This topic has been brought up a number of times over the years............


All the best my friend, Ozzie

[pwmorris]

I'm a little late to the party but just read this thread and find it very entertaining!
Love the smack talkin'!
When I street raced my 124" in 03' and 04' I made more from it than the motor cost me! Trust me, if you know how to set up your
bike you won't be spinnin' the tire or blowing away your clutch. Even a 80 incher can smoke his tire from a light if he doesn't know what he is doin' or he is runnin' a hard compound tire with alot of air pressure. I also ran a electric shifter that I could switch on if needed for lightning fast shifts and loved it.

[1711tab]

Originally Posted by pwmorris

I'm a little late to the party but just read this thread and find it very entertaining!
Love the smack talkin'!
When I street raced my 124" in 03' and 04' I made more from it than the motor cost me! Trust me, if you know how to set up your
bike you won't be spinnin' the tire or blowing away your clutch. Even a 80 incher can smoke his tire from a light if he doesn't know what he is doin' or he is runnin' a hard compound tire with alot of air pressure. I also ran a electric shifter that I could switch on if needed for lightning fast shifts and loved it.

Nice bike... 530 or 630 chain??? Is your electric shift a Pingel???

[pwmorris]

Thanks-
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[claytp1]

Originally Posted by 1711tab

Nice bike... 530 or 630 chain??? Is your electric shift a Pingel???

Chain, what chain? ......Oh look, there's a bike in that picture.

[Booggerbe]

Pm sent to you . Thanks Booggereb

[Totenkopf]

Originally Posted by claydbal

ozzie, how would one know what length to increase intake runner? is there a formula? runner = stroke? im so confused. LOL

Dennis,

There are a couple of related things going on here but first look at this link where I have posted the intake pulse tuning formulas before.... keep in mind that the longer the intake corresponding to lower pulse numbers like 4th versus 5th or 3rd versus 4th, etc. equals stronger pulses.
http://www.v-twinforum.com/forums/1268716-post46.html

As far as stroke length relating to intake, a good rule of thumb is that the pinch point / choke point in the intake should be one stroke length out from the intake seat. Another rule of thumb is to be sure there is sufficient volume in the intake, from the valve seat out, to partially fill the cylinder xx% when the intake valve opens and the pressure pulse is assisting the initial fill.

all the best!

[claydbal]

thanks ozz and tote, now i get to spend another week being confused! it is true with injection that intake runner length is measured from port opening to the end of the tract where it sees fresh air, not stopping at TB. is this still true?

[Totenkopf]

Originally Posted by claydbal

thanks ozz and tote, now i get to spend another week being confused! it is true with injection that intake runner length is measured from port opening to the end of the tract where it sees fresh air, not stopping at TB. is this still true?

yes

the pulses in both the exhaust pipe and intake reflect from the respective valves, to the external openings to the outside environment.