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View Full Version : Yoshimura TRC vs. Rossier


04'400ex'er
10-31-2005, 07:53 PM
how is the power on the yoshi pipe compared to the rossier? it will be for an 06' and i know there arent systems out for it yet but what were the differences on the 05's. I like the looks of the yoshi pipe alot but from what ive heard the rossier is the top performer and i was just wanting this comparison. Thanks for any input.
tucson450r
10-31-2005, 08:00 PM
I LOVE my Rossier pipe!!!
wppracing
10-31-2005, 08:17 PM
I had them both. With my current set up the Yoshi performed better.

Yoshi TRC - 47.74hp / 33.12tq
Rossier - 46.80hp / 31.69tq
STR330R
10-31-2005, 11:24 PM
Originally posted by wppracing
I had them both. With my current set up the Yoshi performed better.

Yoshi TRC - 47.74hp / 33.12tq
Rossier - 46.80hp / 31.69tq

That is good to know. I have nothing against rossier, but i have always been a yoshi fan. Especially because of good quality.
ESrider
11-01-2005, 05:44 AM
Hey Brian,

How did they compare on the bottom end?
wppracing
11-01-2005, 08:29 AM
They were different set ups. The Rossier used the 13.5 JE and HRC Cam. The Yoshi used the 13.75HH and Hot cam STG2.
The runs are on my site with the items on the quad for each run.
www.wppracing.com

I am changing the set up again with the Baldwin 14.1 and Megacycle X2 cam

Dyno runs will be done on Saturday
04'400ex'er
11-01-2005, 08:52 PM
if the power is this close then my choice is the yoshi. the looks of that pipe imo is alot nicer than the rossier. thanks alot for the info wpp.
cals400ex
11-01-2005, 11:07 PM
there should be differences between the JE and the HH pistons though too...
iceracer65
11-02-2005, 09:49 AM
alot of ppl have threatened to have some pump gas engine pulls on the dyno. how come there arent any yet?

i know most ppl that buy quads wont put a high comp. piston.
cals400ex
11-02-2005, 12:03 PM
i have read a dyno of a 12.25:1 HH vs a stock bore JE 13:1. the HH had 1-1.5 horsepower more overall and it peaked to 2 horsepower more than the JE at a time. not saying that helped much. just what i read after the dyno...
04'400ex'er
11-02-2005, 06:53 PM
Originally posted by cals400ex
i have read a dyno of a 12.25:1 HH vs a stock bore JE 13:1. the HH had 1-1.5 horsepower more overall and it peaked to 2 horsepower more than the JE at a time. not saying that helped much. just what i read after the dyno... sounds to me like the HH piston outperforms the JE pistons, from what i have read. But i have also read many contraversial posts about the HH piston. why are people knocking that piston? is the reliability of that piston poor? what are the reasons that people dislike the HH?
11-02-2005, 07:05 PM
Originally posted by 04'400ex'er
sounds to me like the HH piston outperforms the JE pistons, from what i have read. But i have also read many contraversial posts about the HH piston. why are people knocking that piston? is the reliability of that piston poor? what are the reasons that people dislike the HH?

from what i hear the HH is having ring end gap problems