Engine R & D

[Kennedy_Power]

What I have learned and know from countless hours of engine R and D is that the exhaust pipe is the first part of development, then the cylinder head design, and then port layout. Many people just want me to do a port layout job for them; I will not do the job without modifying the head as a package. The best pipes I have tested that run great from the bottom to the top are Shearer Custom Pipes. Shearer has a pipe for the blaster now that pulls harder then any other Blaster pipe with a stock set up. I do not know yet how well it will work on a drag blaster; but it might be the ticket to huge gains in bottom to midrange power for the average guy. I will not have this pipe from Shearer until Monday or Tuesday. If you are in the market for a pipe; please wait until I finish testing all the pipes you want to see.
ThanksI:I

 

[pittboss45]

It seems as though you have a passion for what it is that you do, as do I. I would like to ask you your thoughts in regards to the dyno runs that you do.

Does a dyno run show the same performance as real seat time?

I'm asking that do you believe that a dyno chart with the power curve and hp numbers give you the same information that the bike will do on the track as far as how it actually performs? I have dyno'ed most of the motors from builders over the years and some have good #'s but fall flat on their face on the track.

 

[Kennedy_Power]

The dyno is a tool, like a mill, lathe, flow bench and so on.
You have to have to the right tools to get the job done.
The dyno will not show the same results as a “real seat time” unless you load the engine hard; like sand dragging or on the asphalt. I can make max power on the dyno and then might have to pull -2 out of the timing because the plugs rattled loose from detonation. Once you spend countless hours on the dyno and track you learn a lot.
Yes I have a passion with engines and that’s been the case since I was 10 years old.
Thanks and take care

 

[Wildcard2]

A dyno is merely a tuning tool. When used correctly it is an effective means to guage improvement to an engine. There are many to choose from and the same engine on different dyno's will show different #'s. Real world testing, setup and rider seat time cannot be replaced.

 

[pittboss45]

A dyno is merely a tuning tool. When used correctly it is an effective means to guage improvement to an engine. There are many to choose from and the same engine on different dyno's will show different #'s. Real world testing, setup and rider seat time cannot be replaced.

These are the answers that readers need to understand when it comes to having the engine built. That a chart doesn't give the all the answers to how your bike will perform.