The Build
Before making any mods we needed to establish a baseline. When the smoke cleared we were left with 173.52 HP and 103.28 LB-FT at the tireboth impressive, but there was definitely room for improvement.
Like all motors, our 1340cc mill is essentially an air pump, and relieving restrictions on both the inlet and outlet are always a good bet to make more power. On the dyno the stock bike was whisper quiet thanks to the bulbous pair of stock mufflers, and that was priority number oneditching the stock exhaust system.
In place of the heavy stock pipes we opted for an M4 stainless steel full system with a titanium muffler. This piped dream shaved 33-pounds over the stock exhaust system and boosted power by 11 HP and 6 LB-FT at the rear wheel. It’s not often you can bolt on that kind of power and reduce weight so drastically, but the M4 pipe exceeded our expectations and even pushed midrange grunt up another 10+ HP and 10 LB-FT. If you’re limited to just one mod this season, start here.
With the exhaust uncorked our next order of business was to relieve the inlet side of the ’Busa, and that came in the form of Montgomery Motorsports’ carbon fiber airbox. This colossal container was so large it took some finagling to get it in place. But once fitted it was good for another 2 HP and 2 LB-FT at the wheel with equally stout gains in the midrange. While the box performed well on the dyno, had our Hayabusa been fitted with a big- displacement motor the airbox would have been an even bigger help. Consider it one of those mods that will benefit you now, but really pay dividends when you dive into the engineespecially since a pumped-up motor gulps massive amounts of air.
Along with the power gains, the carbon box also shaved 2.8-pounds over the stock airbox. We must note that our early production airbox did not have an air filter and is better suited to race applications. However, we hear Montgomery has an air filter provision in the works.
In keeping with our go big or go home attitude we decided to pull another racer trick out of our sleeves, and that ace in the hole was some Alisyn Less Than Zero Weight Oil from Brock’s Performance. This slippery stuff has a viscosity of less than zilch, and on the dyno it was good for 1 HP at peak. The dump-and-pour gains were impressive to say the least, but bear in mind this is race oil. While it’s OK to leave it in your streetbike for a weekend at the track, for ultimate longterm reliability heavier oil is recommended. But on the dyno our lightweight liquid certainly speaks for itself, and if you’re after every last ounce of power during your track outings, this is the real deal.
With the bird breathing freely and spinning on some slippery oil our next weapon of choice was a few gallons of MR12 race gas from VP Fuels. This rocket fuel is serious stuff and without any tuning netted us another 5 HP and 1.5 LB-FT at the tire. But with a wideband oxygen sensor connected we saw the air/fuel ratio (AFR) move from a safe 13.5:1 to a substantially leaner 15.5:1.
MR12 is a highly oxygenated race blend that burns so efficiently it creates more oxygen inside the combustion chamber and allows more fuel to be added, thus making more power. Much like the effect nitrous has on combustion, race gas has more potential energy. Unlike additive-heavy pump gas that actually cut burning efficiency, the VP blend is easily combusted.
Since the MR12 added another 5 HP but leaned the bike to an unsafe level we decided a DynoJet Power Commander V (PCV) was in order. The PCV allowed us to tweak the AFR on the dyno for another 5 HP and 5 LB-FT at the tirepretty impressive results, to say the least.
When the number crunching was done our bolt-on ’Busa laid down a jaw-dropping 195.20 HP and a tire-annihilating 116.56 LB-FT at the wheel. Total gains for the day worth of bolt-ons were 21.68 HP and 13.28 LB-FT with a 37.8-pound weight savings from the exhaust and airbox.
The Build
Before making any mods we needed to establish a baseline. When the smoke cleared we were left with 173.52 HP and 103.28 LB-FT at the tireboth impressive, but there was definitely room for improvement.
Like all motors, our 1340cc mill is essentially an air pump, and relieving restrictions on both the inlet and outlet are always a good bet to make more power. On the dyno the stock bike was whisper quiet thanks to the bulbous pair of stock mufflers, and that was priority number oneditching the stock exhaust system.
In place of the heavy stock pipes we opted for an M4 stainless steel full system with a titanium muffler. This piped dream shaved 33-pounds over the stock exhaust system and boosted power by 11 HP and 6 LB-FT at the rear wheel. It’s not often you can bolt on that kind of power and reduce weight so drastically, but the M4 pipe exceeded our expectations and even pushed midrange grunt up another 10 HP and 10 LB-FT. If you’re limited to just one mod this season, start here.
With the exhaust uncorked our next order of business was to relieve the inlet side of the ’Busa,และที่มาในรูปแบบของ มอนต์โกเมอร์รี่มอเตอร์สปอร์ต ' คาร์บอนไฟเบอร์ airbox . ตู้คอนเทนเนอร์ยักษ์นี้มีขนาดใหญ่มาก มันเอา finagling ที่จะได้รับมันในสถานที่ แต่พอติดตั้งมันถูกดีอีก 2 แรงม้า และ 2 lb-ft ที่ล้อกับผลประโยชน์เท่าเทียมกัน อ้วนในช่วงเสียงกลาง ในขณะที่กล่องบน Dyno ได้ดี ,มีฮายาบูสะของเราถูกติดตั้งกับใหญ่ - การยนต์ airbox จะได้ช่วยใหญ่ พิจารณาหนึ่งของ mods ที่จะได้รับประโยชน์คุณตอนนี้ แต่จ่ายเงินปันผลเมื่อคุณกระโดดลง engineespecially ตั้งแต่สูบขึ้นมอเตอร์ครับจำนวนมหาศาลของอากาศ
พร้อมกับพลังงานจากคาร์บอนกล่องยังโกน 2.8-pounds มากกว่าหุ้น airbox .เราต้องทราบว่า airbox การผลิตของเราก่อน ไม่มีกรองอากาศ และเหมาะกับการแข่งงาน แต่เราได้ยิน มอนโกเมอรี่ มีกรองอากาศไว้ในผลงาน
รักษาของเราไปที่บ้านใหญ่หรือไปทัศนคติเราตัดสินใจที่จะดึงตัวแข่งหลอกออกจากแขนของเรา และเอซในหลุมเป็น alisyn น้อยกว่าศูนย์น้ำหนักน้ำมันจากการแสดง บร็อค . This slippery stuff has a viscosity of less than zilch, and on the dyno it was good for 1 HP at peak. The dump-and-pour gains were impressive to say the least, but bear in mind this is race oil. While it’s OK to leave it in your streetbike for a weekend at the track, for ultimate longterm reliability heavier oil is recommended. But on the dyno our lightweight liquid certainly speaks for itself, and if you’re after every last ounce of power during your track outings, this is the real deal.
With the bird breathing freely and spinning on some slippery oil our next weapon of choice was a few gallons of MR12 race gas from VP Fuels. This rocket fuel is serious stuff and without any tuning netted us another 5 HP and 1.5 LB-FT at the tire.แต่กับออกซิเจนเซ็นเซอร์สัญญาณเชื่อมต่อ เราเห็นอัตราส่วนอากาศ / เชื้อเพลิง ( AFR ) ย้ายจากเซฟ 13.5:1 ไปอย่างมากทำให้ 15.5:1 .
mr12 เป็นอย่างมากในการแข่งขันผสมออกซิเจนที่เผาไหม้ได้อย่างมีประสิทธิภาพเพื่อสร้างเพิ่มเติมออกซิเจนภายในห้องเผาไหม้ และช่วยให้เชื้อเพลิงมากกว่าที่จะเพิ่ม จึงทำให้มีอำนาจมากขึ้น เหมือนผลการเผาไหม้ก๊าซไนตรัสได้ , การแข่งขันที่มีศักยภาพพลังงานมากขึ้น
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