KWS Motorsports’ Suzuki GSX-R1143 — Wild File — Motorcyclist Magazine

12 Апр 2015 | Author: | Комментарии к записи KWS Motorsports’ Suzuki GSX-R1143 — Wild File — Motorcyclist Magazine отключены

Talk About A Road-Going Kws Motorsports’ Suzuki Gsx-R1143 A 200-Horsepower Wallop!

Many of us about riding a fire-breathing, Superbike on the street, but few of us have the for a factory racer-much less the rsum required to get a call from the Yoshimura race Well, what if we told you was a cheaper and easier way to have own street-legal Superbike-a GSX-R1000 kicks out an honest 200-plus only this one starts at the of a button, purrs like a on idle and runs all day long on gas? Dream on, right?

Or, of calling Kevin Hunt at KWS in North Charleston, South (www.KWSmotor Hunt and his are well known in roadracing as one of the top-performing privateer teams in AMA racing, fielding riders Lynn and John Haner in

In fact, a few years back AMA Superbike Champion Mat Mladin was about privateer Superbikes his factory machine on the straights, it was the KWS (then ridden by Shawn that he was whining about. In to his successful race team, also operates a thriving shop and would be happy to you the ultimate daily rider-which is what we asked him to do.

Since the AMA rulebook is irrelevant on the Hunt went about project differently than he a racebike. Since reliability and were his main goals, he up displacement to 1143cc with cylinders and a stroker crank to a substantial power gain aggressive tuning that make the bike difficult to with day-in and day-out. The priority was maximum midrange Hunt says another 5 ponies would have no problem with bigger and more aggressive cams, but street riding in mind he a midrange-heavy tune.

KWS starts by the cylinder block to Millennium which punches out the oversized, bores and re-plates the cylinders JE Pistons supplies the pistons ($700;, weigh 6.7 grams less the stock slugs in spite of 3mm larger in diameter. KWS then a new crank with a 4mm-longer ($1395), to achieve a final of 1143cc.

To withstand the increased speeds, the stock connecting are replaced with lighter (43 less each), stronger, Carrillo H-Beams ($1095; Under the motor is a custom oil pan with a pendulum-style oil pickup swings back when the launches forward, thus the pickup from starving-and the from grenading.

Bigger make for greater fuel-burning and to move even more and air into and out of the combustion chambers, the heads are ported to full Pro ($1350). The stock Suzuki valves are retained in this but Hunt replaces the springs the stiffer pieces from an GSX-R750 ($160) and also custom-ground Web cams ($740;, a set of APE adjustable cam sprockets and an adjustable billet tensioner ($65). Lastly, a billet basket helps the cope with the added ($495;

Once Hunt wrapped up the lifting inside the engine, he to tuning. On went a LeoVince titanium exhaust system and not one but two Dynojet Power to fine-tune each bank of the two injectors per cylinder ($339.95 www.dyno

While the catalog was open, Hunt an Ignition Module ($355) to full tuning of the ignition a Wideband Commander ($529.95) allows on-board, real-time of the air/fuel ratio via an exhaust-mounted and retrievable data acquisition, a Quick Shifter ($278.82) allows full-throttle, clutchless Finally, Hunt fitted the new Commander Multi-Function Hub ($189.95), allows two fuel maps to be and interchanged with the flip of a switch.

Built to the hilt and up like the space shuttle, expect this Gixxer to it does. The dyno chart is a The big-bore stroker makes as torque at 5000 rpm as the stocker at its 9750-rpm peak, and it only upward from there. crosses the 90 lb.-ft. mark at rpm, and 100 lb.-ft. is dispatched at 7200 rpm on the way to the new peak figure of 105 at 8800 rpm.

The horsepower curve is no less 150 bhp comes online at 7600 175 bhp is available before 9000 and at the fuel tank hits you in the with a bonafide 200 bhp and keeps to a peak of 209 bhp at 11,900 rpm. pole-position power right

What good is a Superbike without a Superbike-spec chassis? ( upgraded the suspension and rear, fitting the fork uprated 20mm valves and springs ($420) and replacing the shock with a two-way 8760-series damper ($795) through Vortex adjustable rods ($57.95; www.vortex The non-adjustable factory steering was binned in favor of a Pit Bull Steering Stabilizer ($424.95; and the brakes were upgraded an AP Racing variable-ratio radial master cylinder ($595, along with brake lines ($159), rotors ($590 front, rear) and HH pads ($92) Galfer (

To complete the handling package, a set of Sport Carbon wheels from was mounted. eye candy, these rims of carbon-fiber outer hoops to color-matched magnesium spokes and Light? You bet-they save 6 compared to stock.

To reduce resistance, KWS replaced the wheel with ceramic units Worldwide Bearing ($400; when you build Superbikes for a no advantage is overlooked. Lastly, the was cleaned up with a full of Hotbodies ( goodies trick mirror blanks/LED signals ($39.95), windscreen undertail ($189.95) and rear ($179.95).

Even with gearing, riding the KWS Superbike is an in wheelie control. Wick the up and so goes the front wheel-in third, even fourth If the throttle is wide open at above 7500 rpm, be watching the birds. KWS race manager Chip Spalding it up: There’s no reason for a bike this to exist. It’s and the most incredible street I’ve ever ridden.

I love it!

Suzuki GSX 400

KWS has built a few dozen GSX-Rs dating back to and finds this to be a very package. While the bike run just fine on 93-octane gas, Hunt recommends VP 98-octane MRX01 if you plan on or riding it hard at the track. The Gixxer ain’t cheap, but not as spendy as the $350K factory that are its performance equal.

Deliver your late-model to KWS along with $24,500 in hard cash, and they’ll you one exactly like this.

up to you what you spend the remaining on. Might we suggest a pallet of rear tires and a retainer for a traffic lawyer?

Pin to Win

Is 200 Horsepower Not Enough? KWS Motorsports Can Give You 220 Bhp If You Mind Pinning Your

As impressed as we were by Kevin bored-and-stroked GSX-R1143, 209 horsepower is the beginning of what this guy can do a naturally aspirated GSX-R1000 Want 220-plus bhp? No after Hunt gets in the machine shop. Hunt that 3mm is the maximum overbore with a stock GSX-R before the cylinder thickness is enough that instability its integrity.

By pinning the block, Hunt found that he go reliably up to a 5mm overbore for 1204cc

The process entails filling that normally function as jackets with large pins that reinforce and the bored-out block. The reinforcing are positioned with two in front of the and one behind, and the pins are radial-cut to allow some water and some semblance of cooling

Once reinforced, the pinned is reassembled with 78mm JE high-compression pistons, plus all the mods detailed in the previous good for more than 220 hp and 120 of torque. Expect to spend $11,000 for such a motor, and expect to run pump gas, as the on these engines stands in the of 15.0:1. But if you’re street-racer about having the baddest aspirated literbike in the land, Hunt is your man.

Suzuki GSX 400
Suzuki GSX 400
Suzuki GSX 400
Suzuki GSX 400
Suzuki GSX 400


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