Clockwork Racing Engines and Products...
#1293
Thanks Neal for posting the B6 chart.
Looking at the charts I think that a bit of the drop off especially on the tail end at higher RPM's with our engine is due to the use of a steel bearing versus ceramic. Switching to a ceramic bearing in the B6 should provide a noticeable reduction in friction which will probably increase the overall max HP and Torque numbers further as well as increase/extend them on the back and of the curve.
Ron
Looking at the charts I think that a bit of the drop off especially on the tail end at higher RPM's with our engine is due to the use of a steel bearing versus ceramic. Switching to a ceramic bearing in the B6 should provide a noticeable reduction in friction which will probably increase the overall max HP and Torque numbers further as well as increase/extend them on the back and of the curve.
Ron
#1294
I wont lie to you Ron...when I tested the B6 I was shocked to see its numbers on the 2013... I even went back and retested a few other engines just to make sure something wasn't fishy with the dyno...Thats why it took me a while to post the results.... So far the B6 2013 with shim removed has the posted the highest torque numbers of any stock .21 I have tested to date..including the B5 which really shocked me.....I tested that B6 many times and its consistently pulling those numbers........ Just wait till you guys see the dyno of the mod B6 !!!
Neals modded version of the B6 is going to make an awesome TRUGGY MOTOR as long as it doesn't have short legs.
#1295
Joined: Jan 2007
Posts: 3,769
So I guess Neal's got some more work to do.....Neal, is there a ceramic bearing in your shop ready to pop into a B6 and be put to work? And after that how 'bout that lightened con rod? Let's give it all the bling we can, add up the additional costs, run it against the Speed, and let the chips fall where they may.....
#1300
Whatever the dyno says the OS will still win on the track. I wish there was a tool that could test the drivability and feel of an engine in the real world, but that doesn't exist yet. I was shocked to see the numbers the OS put out right out of the box. For an engine that doesn't really focus on all out power, but more on smoothness of the powerband, usable power and fuel mileage. I'll still take the OS any day of the week and have no problems paying for it. Like Frank said awhile ago, there's people that are looking for a bang for the buck deal and those of us that want the best. OS has been the standard by which all engines are compared for years and even to this day, in this very thread we are still comparing everything to the OS speed. Has to be a reason for that.
#1304
Whatever the dyno says the OS will still win on the track. I wish there was a tool that could test the drivability and feel of an engine in the real world, but that doesn't exist yet. I was shocked to see the numbers the OS put out right out of the box. For an engine that doesn't really focus on all out power, but more on smoothness of the powerband, usable power and fuel mileage. I'll still take the OS any day of the week and have no problems paying for it. Like Frank said awhile ago, there's people that are looking for a bang for the buck deal and those of us that want the best. OS has been the standard by which all engines are compared for years and even to this day, in this very thread we are still comparing everything to the OS speed. Has to be a reason for that.

I won't try to say the OS isn't a great engine because they are. BUT... they are not the only engine manuf. that is looking for drive-ability. The RB's have been designed around making usable power for years. And if all engines are really compared to the OS engines why did OS jump ship on their short stroke design to follow suit of what almost ALL other companies have been doing for years now?
Again.. they are great engines but you have been brainwashed into thinking they are the best. I have RB's with 18 gallons on them (no pinch only bearings replaced) that still run great... anyone in here have an OS that has survived thru 4 or 5 race seasons and countless loaner weekends to people having bad luck?
#1305
I won't try to say the OS isn't a great engine because they are. BUT... they are not the only engine manuf. that is looking for drive-ability. The RB's have been designed around making usable power for years. And if all engines are really compared to the OS engines why did OS jump ship on their short stroke design to follow suit of what almost ALL other companies have been doing for years now?
Again.. they are great engines but you have been brainwashed into thinking they are the best. I have RB's with 18 gallons on them (no pinch only bearings replaced) that still run great... anyone in here have an OS that has survived thru 4 or 5 race seasons and countless loaner weekends to people having bad luck?
Again.. they are great engines but you have been brainwashed into thinking they are the best. I have RB's with 18 gallons on them (no pinch only bearings replaced) that still run great... anyone in here have an OS that has survived thru 4 or 5 race seasons and countless loaner weekends to people having bad luck?
I can't say why they went away from the Short stroke design. I'm sure they had reasons for it, and from what I can see it was a wise idea. Maybe they should have done it sooner, maybe not. The short stroke speeds were and still are one of the best engines ever made. World Champ twice in a row. Smooth usable power with exceptional fuel mileage.



