Ran My Tri On Dyno Today !

Ducati Forum

Help Support Ducati Forum:

Status
Thread Closed
I6yld.gif
 
Yep. not dropping stupid money on heavy stainless steel for nothing. That would only put me up about 5-6 hp anyway on a good day. which is NOT worth it at all.

"Le sigh my ..."

Le Sigh all up in your ..., I have fulls and ran a 172.19. Although, every dyno and location is different.
 
Looks like jokes on you then for dropping all the cash on full system. True every dyno and tech is different - but 7hp cant be just a "little" oversight!

Lol...Shall we consider the pot stirred???;)
 
fact is a full system is totally not worth it. i looked into it heavily and if it were worth it i would have bought it. its a marketing ploy to make you think you need it. most after market full systems are to reduce weight maybe remove the cat. thats it. why buy another SS pipe when you already have one?

the pipe is 20mm larger this drops performance because the gases expand in side the pipe instead of having it pulled through at a faster pace. i forgot what its called but its like what undertow is. all the water pulling into a smaller opening creates a force. i would have got it if it were same as stock titanium.

4k for 5 hp give me a break and a loss in mid range to gain some on top end which you will never use. On a 25k bike thats 20% the cost of a bike or a used say cbr1000rr for the track.
 
Last edited:
So just to summarize for all the people who don't know what SAE is (Frosty).

We learn that Gunny's bike put down 180whp on that dyno when corrected for SAE standard of temp, humidity, air pressure. It ACTUALLY made ~175whp at that very moment, not corrected for SAE standard.

No one better say anything about power at the crank
 
Last edited by a moderator:
Looks like jokes on you then for dropping all the cash on full system. True every dyno and tech is different - but 7hp cant be just a "little" oversight!

Jokes on you, I can still do circles around your garage queen if you ever got it to the track. :eek:

I'll be here all day.
 
Last edited:
the pipe is 20mm larger this drops performance because the gases expand in side the pipe instead of having it pulled through at a faster pace. i forgot what its called but its like what undertow is. all the water pulling into a smaller opening creates a force. i would have got it if it were same as stock titanium.

This is true to a point. Header design is very complicated and different designs work better at different rpm ranges. Classic example is short tube vs long tube headers. Short tube will improve mid range torque and horsepower and long tube will produce more peak horsepower and keep a higher torque curve. High horsepower needs somewhere to escape. Air being drawn in to the cylinder for combustion is sucked in through the escape of exhaust gas. This is called scavenging. If there is too much restriction and therefore pressure trapped inside the exhaust manifold, it cannot efficiently vacuum air in to the cylinder, and will result in less bang and lower horsepower.

The key piece in having high VOLUME (good for horsepower) flowing exhaust manifolds lies in the manifolds ability to keep HEAT inside the exhaust. Hot air is much less dense and flows a lot faster which aids in scavenging.

But like I said, header design is a very complex puzzle. This ends your instruction for the day.
 
fact is a full system is totally not worth it. i looked into it heavily and if it were worth it i would have bought it. its a marketing ploy to make you think you need it. most after market full systems are to reduce weight maybe remove the cat. thats it. why buy another SS pipe when you already have one?

the pipe is 20mm larger this drops performance because the gases expand in side the pipe instead of having it pulled through at a faster pace. i forgot what its called but its like what undertow is. all the water pulling into a smaller opening creates a force. i would have got it if it were same as stock titanium.

4k for 5 hp give me a break and a loss in mid range to gain some on top end which you will never use. On a 25k bike thats 20% the cost of a bike or a used say cbr1000rr for the track.


You're right, never use it at the track. Why spend the extra money for trips to starbucks or to stare at it in a garage.
 
The ONLY way to measure real horsepower versus another bike is to run them at the same 1/4 mile strip, and see which traps higher.

Dyno numbers are smoke and mirrors. Dynos are used to measure before and after change, not to measure dicks.

I bet of the stock headers performed better than the aftermarket Termi headers, race teams would use stock.
 
The ONLY way to measure real horsepower versus another bike is to run them at the same 1/4 mile strip, and see which traps higher.

Dyno numbers are smoke and mirrors. Dynos are used to measure before and after change, not to measure dicks.

I bet of the stock headers performed better than the aftermarket Termi headers, race teams would use stock.

You're insane.
 
I do not understand all the anger, derogatory remarks, and wanting to cut this thread up into pieces here? You wont EVER see me at the track Trans. And you know why.

I didnt have the guy running the dyno pull any smoke and mirrors, or "fix" the results in anyway. These are legit numbers of the bike with the mods I have made. It was a very humid day and approximately 88 degrees outside. Would anyone rather I NOT post them here on forum?
 
The ONLY way to measure real horsepower versus another bike is to run them at the same 1/4 mile strip, and see which traps higher.

Dyno numbers are smoke and mirrors. Dynos are used to measure before and after change, not to measure dicks.

I bet of the stock headers performed better than the aftermarket Termi headers, race teams would use stock.

Let me guess... You have full termis???
 
Status
Thread Closed

Register CTA

Register on Ducati Forum! This sidebar will go away, and you will see fewer ads.
Back
Top