julianconde
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- Joined
- Jan 22, 2009
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28000.
Julian
Julian
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I hope to be heading that way will see how much time and money I have when it comes around next time.David
If your pulling that much leading edge pitch and turning the rpm's your talking in your oval boat,
You should play SAW, because in a lot lighter SAW rigger you should be able to turn even more R's and L/E pitch you will smash the current records to bits!!!!
Regards Aaron
well maybe not that much. will see.28000.
Julian
ChuckThanks Arron
David If..............If that number is correct than what Arron said is correct. But what I have to say is not going to make any difference is it???? Do what you think you need to do. If.......... we get a chance to race again.....You can show me............or not. That simple.![]()
B)
We will race again I am sure of that. will have a good time shooting the shib also.David
Nothing ment.........Just that I will be doing most of racing on On Bridgestones,not water. So, if we get that opporunity we can expand the theoy further.
I will be sure to give him a ride at 160 so we can hear him sream like a girl...!!! :lol: :lol:We will race again I am sure of that. will have a good time shooting the shib also.David
Nothing ment.........Just that I will be doing most of racing on On Bridgestones,not water. So, if we get that opporunity we can expand the theoy further.
But if you get too unruley. I will get my friend with the pink too too after ya!
David
The 1.05 thing was done many years ago. It was first done on Rossi 90's with the ducted fan 105 sleeve. I started converting a k90 years ago and never finished the project. Both the Rossi 90 and the K90 have the same stroke as the vac 91.It could be very powerful with the right combos.I hope to be heading that way will see how much time and money I have when it comes around next time.David
If your pulling that much leading edge pitch and turning the rpm's your talking in your oval boat,
You should play SAW, because in a lot lighter SAW rigger you should be able to turn even more R's and L/E pitch you will smash the current records to bits!!!!
Regards Aaron
I think I will give the boat to my buddy Julian to run the oval. he is one heck of a driver.
We are working on a CF boat now to put the belt drive in. this boat will run the VAC 1.05 with more RPM than a amp eater.
This is just a test boat .
I believe u are within the the 2 % range based on fuel, pipe, and pipe legth.well maybe not that much. will see.28000.
Julian
I guessing about 23500.
Thanks for the input Dick. I am just doing a calculated estamat. always nice to have a back up opinon on the calculations.I believe u are within the the 2 % range based on fuel, pipe, and pipe legth.well maybe not that much. will see. I guessing about23500.28000. Julian
The long stroke will make lots of power I hope. Have all the numbers just need a VAC case. the HR I have is not as good of a breather.The 1.05 thing was done many years ago. It was first done on Rossi 90's with the ducted fan 105 sleeve. I started converting a k90 years ago and never finished the project. Both the Rossi 90 and the K90 have the same stroke as the vac 91.It could be very powerful with the right combos.I hope to be heading that way will see how much time and money I have when it comes around next time.David
If your pulling that much leading edge pitch and turning the rpm's your talking in your oval boat,
You should play SAW, because in a lot lighter SAW rigger you should be able to turn even more R's and L/E pitch you will smash the current records to bits!!!!
Regards Aaron
I think I will give the boat to my buddy Julian to run the oval. he is one heck of a driver.
We are working on a CF boat now to put the belt drive in. this boat will run the VAC 1.05 with more RPM than a amp eater.
This is just a test boat .
I've looked at all that too.Good luckThe long stroke will make lots of power I hope. Have all the numbers just need a VAC case. the HR I have is not as good of a breather.The 1.05 thing was done many years ago. It was first done on Rossi 90's with the ducted fan 105 sleeve. I started converting a k90 years ago and never finished the project. Both the Rossi 90 and the K90 have the same stroke as the vac 91.It could be very powerful with the right combos.I hope to be heading that way will see how much time and money I have when it comes around next time.David
If your pulling that much leading edge pitch and turning the rpm's your talking in your oval boat,
You should play SAW, because in a lot lighter SAW rigger you should be able to turn even more R's and L/E pitch you will smash the current records to bits!!!!
Regards Aaron
I think I will give the boat to my buddy Julian to run the oval. he is one heck of a driver.
We are working on a CF boat now to put the belt drive in. this boat will run the VAC 1.05 with more RPM than a amp eater.
This is just a test boat .
The 1.01 P/S will get the same mod in the VAC case. With the .588 drum ID a bigger carb will work real nice.
As soon as Stu gets the cases in I will giving it a try.
David
After thousands of dyno tests looking at the influence of the types of changes to the liner & piston shown in your photo, I can say without a doubt, there has been no HP increase found, especially a higher RPM's (beyond 26,000). What has been shown to greatly improve & become necessary to increase the flow through intake ports is a radius on the entire inside wall. Examples can be easily found in the MB .40 cuin speed plane motor (32,000 to 35,000 RPM range) & racing two cycle engines such as the Aprillia, Rotax, etc.Here is a better shot of the P/S.Kinda hard to see from the angle in the pic. the window is unsounded at BDC with this mod. The angle cut help with the flow more than the standard strait cut. Kinda swoopey.David I don't know about the grooves?? I see you still have a full liner?? We haven`t ran a 101 with a full liner in about 2 years.Put the liner in the case & take a look at the front intake port while you have it apart. Very Restricted.also the piston is very light. have bin using this mod on all RS eng and it dose wonders.
also running stock timing numbers on the liner. just flatten off the transfer port roof and make one cut on the bottom at the front.
Hey Jim, could you possibly post a picture and elaborate on what you mean by cutting a "radius on the entire inside wall." Not intending to get this thread too far off track, but when analyzing the engine from the perspective of a dyno, what types of sleeve cuts and methods of enhancing flow within the engine have you found to be optimal?After thousands of dyno tests looking at the influence of the types of changes to the liner & piston shown in your photo, I can say without a doubt, there has been no HP increase found, especially a higher RPM's (beyond 26,000). What has been shown to greatly improve & become necessary to increase the flow through intake ports is a radius on the entire inside wall. Examples can be easily found in the MB .40 cuin speed plane motor (32,000 to 35,000 RPM range) & racing two cycle engines such as the Aprillia, Rotax, etc.Here is a better shot of the P/S.Kinda hard to see from the angle in the pic. the window is unsounded at BDC with this mod. The angle cut help with the flow more than the standard strait cut. Kinda swoopey.David I don't know about the grooves?? I see you still have a full liner?? We haven`t ran a 101 with a full liner in about 2 years.Put the liner in the case & take a look at the front intake port while you have it apart. Very Restricted.also the piston is very light. have bin using this mod on all RS eng and it dose wonders.
also running stock timing numbers on the liner. just flatten off the transfer port roof and make one cut on the bottom at the front.
Jim Allen
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