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Disintegrated Standard Idlers

Question: The cam guide roller wheels disintegrated at idle following some fast driving, the engine stopped instantly. The crank & cams still turn. Is it worth replacing just the guide wheels and belt and try to start the engine or do you recommend I take the valves out and have a look. I didn’t really […]

Noisy Hydraulic Followers

Question: Do you have a cure for noisy hydraulic lifters apart from replacing them with new ones? Answer: The follower works by retaining a certain amount of oil within it and the clearance between the inner and outer walls of the hydraulic component control the operation of the follower itself. If the tolerance was too […]

Changing from standard Hayabusa wiring to a SBD wiring harness

Question: I have a 1999 std Busa engine that I’ve mounted in a custom made chassis. I plan to keep the motor stock as its fast enough for what I want. I’ve looked at your web site and think you have what I need to get it running? I have all the original loom and […]

Hayabusa oil temperature too low

Question: I have a 2003 Westfield Megabusa with a 99 Hayabusa and it has your SBD dry sump pack. The oil temperature gauge never seems to get much above 65-70C on a trackday after circulating for 15-20 minutes. I suspected that the gauge wasn’t reading correctly, but I’ve tested it static and the reading on […]

Hayabusa oil temperature & oil pressure levels

Question: Hello, I’m looking for a for a bit of information. I’m running a Suzuki Hayabusa in stock condition. I’ve purchased your dry sump and tank which is working quite well. We set the engine up with dual radiators, and one single oil cooler. Water temps have been 170-180°F, oil temps have been 240°F and […]

Differences between the Hayabusa Gen 2 engine and the Gen 1 engine

Question: What are the differences between the Hayabusa Gen1 engine and Gen 2 engine? Answer: The Hayabusa Gen 2 engine 1340cc has been around now since 2008 and therefore more readily available. The earlier Gen 1 engines were discontinued at the end of 2007, this means that the engines are now getting quite old and […]

Air horn size on standard Gen1 Hayabusa

Question: I have got a Hayabusa 2004 Gen 1 engine with nothing special on it at the moment. Is running the 4 short airhorns is a better option? Answer: The use of a combination of air horn lengths has a tendency to smooth the torque curve, the longer air horns promote lower to mid-range torque […]

Whether to use 4 or 8 injectors on Hayabusa engines

Question: I am currently working on a 1.6L Hayabusa and would value your opinion whether to use 4 or 8 injectors? Answer: The throttle body we designed for the Gen1 engine produced superior torque and power over the standard throttle bodies and during its design, we specifically worked on testing it against 8 injectors on […]

Traction control and launch control and how to use it

Question: Would I be correct in thinking that when traction control kicks in, I should not take my foot off the throttle at all (which is the immediate instinct) but continue to apply throttle and let the electronics do all the work? Answer: Everybody tries to use the traction control in a different way, some […]

How much throttle to apply when using Launch Control?

Question: The launch control is excellent although I have a question relating to the 7 launch sectors. I understand the sectors enable differing revs to be used for different track conditions. Should I be applying full throttle pedal prior to releasing the clutch with launch governing different revs depending on the sector selected? Until now […]