Very interesting. Waiting to see the torque curves. Were these with stock tune?
Torque varied from 73.44 to 74.55 ft-lb - most pulls had 74.3+ ft-lb. I don't remember the torque with stock set up, but I want to say it was around 68 ft-lb. All peaked at 7800 rpm.
Peak power for the stock exhaust/tune occurred at 9100 rpm. For the others it peaked at 9400 rpm.
Most pulls were repeatable, but occasionally I got a single run that was 1-1.5 hp higher than the other runs if the bike was allowed to cool off for a while between runs. These were disregarded, so the results above do not show the actual best runs from each exhaust, only the average of back to back runs - just like you ride in real life. No dyno BS games trying to show high numbers for the sake of bench racing
. I want to make sure
that others can get the same numbers with the same tunes, and that the bikes run good.
I will print a bunch of graphs today, and scan them for posting.
Air temp 88 degrees F.
Not stock tunes other than with stock exhaust.
CB and I are getting very good at swapping exhausts on the dyno. The stock one gets VERY HOT! We were able to remove the header and replace it with the modified one without loosening the oil cooler lines - big cooler on 2005 bike.
We were surprised at the 110 hp with the stock exhaust - I expected a bit more, but it was HOT in the shop. I ran the Zard with the TORS tune on two pulls - 117+ hp. About 2.5 hp were gained with tuning, and the mid-range really woke up.
My impressions of sound: Comparing the Zard sound to the Chain Reaction Moto (CRM), the Zard is raspier. The CRM is throatier sounding. The Trident (carbon half system) is considerably deeper sounding than either - possibly louder as well, but not nearly as attention getting as the raspy Zard. I can see the Zard attracting attention from police.
With the modified header, the sound is definitely deeper and louder. The bike immediately sounds cleaner at idle and through the power band.
Running a non-SAI tune in a bike with SAI, and the modified header with Zard silencer POPS AND BANGS LIKE CRAZY on deceleration. I think CB scared the crap out of several motorists on the test ride. ;D
CB is finding out how much attention the Speed Triple gets around here. He had lots of looks and even several cagers asking questions while he was stopped in traffic. You all know the normal questions.