Cycle News - Archive Issues - 2000's

2001 Y oshimura Suzuki GSX-R10 0 0 R I 1 tachometer. Yo shimura also ad de d a Yoshimu r a fro m b i ll et ca m bl an k s . a ge ment S ys tem ) tha t was ad de d in b on -fib er c a ni ste r w it h a t itani u m s et of their ow n b eau ti fu l CNC - The new c am s have 248 -d egrees of co nj u n ction wi t h a l ist of o p tio n al core, en d ca p and ti p . machin ed b ill et - a l u m i num f ul l y duration an d 9 . 5m m o f lift f o r the acce s sories , a d justab l e rea r se ts . T h e bi ke also i n tak e side , and 230 -degrees of shifter/ ignition k i ll , shift l ig ht, han- h ad an Oh li ns rear p ig g y bac k sh o c k dur a ti o n and 8 .2mm lift o n the d l e b a r - m o u n t e d toggle switc h t o As men t i o ned abov e , the bike with Yo shimura Japan's own linkage ex ha u st side - they com e compl ete c h an g e eng ine maps on the fly , and . dyno ' ed at 167.9 horsepower with ki t. J ust in c a se the bike takes an w ith new ca m sprockets . The c o m - t h e a dd it i on a l L CD i n f o r m a t i o n 8 1.8 lbs/ft. of torque , so I knew it was u n expec ted dive, a set of two cha ssi s pression r at i o has be en bumped screen mentioned a b o ve . The EMS g oing to be an inte re st in g day. A co u- p rotecto rs p rotrud e f ro m th e frame o n f ro m 12 .0 : 1 to 12 .8: 1 b y insta ll in g a a llows th e b i k e ' s f u el a nd ig ni t io n pl e o f mont hs ago , w e di d t he Cycle both sid es of the b ike . Another cool new c ylind er -he ad gasket th at is m aps to b e tuned v ery ac curately i n News Open B ike sh o o to ut at Willow s uc h as: Sp e ed RIDING TH E BEAST detai l was the rear- b ra k e disc , which th in ner than stoc k but r et ains th e an y segm ent of th e map t o o ptimize Spr ings and we re b lo w n away b y th e had m ore mate r ia l drilled o ut of it pr op er oil- pa s sage r es t ri c t o r s to p erfo rm an c e fo r the exha ust, or sim- Su zuk i's amazing po w er and stability th an what re m ai ned in it . As i s th e ca s e wi t h m o st trul y keep th e o il pressure optimal, and sto ck c o o ling-pa ss ag e r e stri ctor s . p ly fo r spec ific trac k or ri d ing condit io ns . This is d one via .a PC c o u pling fa ct, th e S uzuki won o ur sh o otou t pri- im p ressive proj ect b ik es , it's w hat's The y also a dded a BMC r ac ing ai r to your laptop c o m p ut er w ith Yosh 's maril y becau se we we re so en amored unde r t he sk in t h at c o un t s, and th is filte r , a c o m p a ny kn o wn f or t h e i r Windows-based softwa re in stalled. wit h its brut e h o r s ep o w e r t ha t i t i n t he fast co rne rs. A s a matter of bike is no exception. T h e m otor ha s Form ula One racec ar appli ca t ions. Topping it a ll off is th e TRS T r i - blurred th e other motorcycles . On th e Yosh 's Stage -l camshafts that are Possibly t he m o st important piece is oval race exhaust system with a tita - stock bike, care needed t o be ta ken C NC t he Yosh imura E M S ( E n g i n e Man - nium header and m id -pipe, and ca r - with the throttle t o keep the rear from machin ed in Jap an by Aftermarket ~xbaust Test Yoshimura TRS Tri-Oval Slip-on Race Exhaust We wanted to see what an exhaust pipe would do to our stock GSX-Rl OOOR, so we look ed no further than Yoshimura R&D. We started out with Yoshimur a's TRS Tri -Oval titanium slip-on with a single exhaust tip outlet (Yoshim ura part # 1115267). Installation was a tad more time-consum ing than install ing a slip -on normally is, but it wasn't really that complicated. The entir e job took about 30 minutes. The only thing that was out of the ordinary was pulling off the seat to get at the wirin g loom underneath it. This was to disconnect the wire that tells the computer that the SET (Suzuki Exhaust Tunin g) is functio ning correctl y. The Yoshimura slip-on's new mid -pipe eliminates the SET valve. Don't tell anyone, but from what we hear, the SET is purely there to get the bike past the EPA noise tests. Shhhhh. Afte r disconne cting the little brown wire under the seat. the SET' s cables were removed so that they weren't getting tangled in anything . Everything else was amazingly easy. The Yoshimura slip-on's fit and finistTare first -rate, everything lined up perfectl y, making installa tion a snap. The pipe has a distinct bark to it, sounding almost exactly like a Yoshimura Superbike sounds on the throttle, but a bit quieter. It's not the quietest pipe out there, but its tone is deep and it doesn't have that annoying raspy sound that Suzukis of old had. As for performance, we couldn' t be happier with Yosh's product. I really didn't know how much horsepow er would be available with just a slip-on, because I was assuming that that the GSX-R was in such a high state of tune to begin with . I figur ed at best it would pick up a horsepower or two at the very top of the rev range, but nothing else. As it tum s out, it mak es more power at every single point on the pow er and torque curves. Th e dyn o chart even shows that the near-perfect stock curves were improved upon with the Yoshimura pipe. You can' t ask for more from a pipe. DynoJet Research Inc . A s for peak power, we got more th an what we ex pecte d P_OU~"" _"""' ..j : " 1IQu,, " ~ : with 15 1.3 hp at 11,400 rpm , ~_. "Joa: .. ltIlIIl ..",1

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