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17 FAQs Found
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I replaced the K&N air filter with the stock air filter and ran redline fuel injector cleaner thru the system. New result is 157.87 hp @ 92.61 ft/lbs. (higher ambient temp /lower humidity) When I changed the filter, the idle dropped, and I had to adjust the idle up to keep it running. I would think this is more restriction? The dyno shows the bike is now running richer than with the K&N filter, but producing more power?? People have suggested dyno tuning the bike, I wanted to get yor input before doing this.
What is the highest compression ratio you guys have run milling of head to achieve it and what power gains for the Busa? (JE Flat Tops). What are the tightest piston to valve numbers you would be game to run? I will certainly be rechecking my MAC numbers when I take the lid off, my initial measurements were taken perpendicular to the pin with a .037 and .036 so I guess that averages to .0365?
I have a Streetsmart 3 system with PC/USB for my Hayabusa. The rev limiter seems to kick in at 9500 and then the FI light flashes. I checked the trouble codes and get 32-35 which correspond to injector malfunction in all 4 cylinders, but the bike is running great. Any idea on what's going on?
I'm degreeing in two intake cams on my Busa and I would like to know what lobe centers to put them on. The motor is fairly stock with a Yosh header, 4-2-1 style with an exteneded arm, set up for 4 gears in a 1/4 mile and I weigh 220. Also, it has a Dyno Jet Power Commander and has been dyno tuned 159 H.P.
Can you tell me what approx comp ratio my Busa Race motor would be running? Your 84mm JE pistons, 10 thou off head, 36 thou piston-head, stock base and head gaskets. (02 Busa)I am getting the head built with 1mm oversize valves and I also want to get as much comp into the motor as “safely” possible. What are the tightest piston-head and valve-piston numbers you have seen used reliably? I realize that you might feel the need to give me fairly conservative numbers to cover your arse but I accept that if I bang my motor it is MY FAULT entirely.
After my ride today I noticed that the end of my exhaust pipe was wet with a very watery substance. Normally it is dry more like soot. I was wondering what could this be caused by?
We have a Hayabusa with a VHM 1500cc for Street and Track. We are using the stock injectors and ECU with a PC3USB. Is that correct?
I notice a huge difference in the Pump Gas Track map fuel added at 100% throttle starting at around 7k rpm's compared to the other maps. Is this correct?
I just put my ZX-14 back together. The head is ported by Spaz and I degreed the cams. Also has JE 13.5:1 pistons and Carrillo rods. Smeg, flies out, BMC race filter. I put the SS map you sent me in and used 93 pump gas. It starts and idles great but I tried to take it for a ride and it was bogging and dying on me bad. I thought it was too rich, but pulled a plug and it was very clean, looks lean?! I am just trying to convince myself there's nothing wrong with it and it just needs mapped. Is there anything else that could be causing this that I can check.
I have a 1070 with head and cams. The cams are 394 intake with 750 intake cam on the exhaust side. I need a map for this setup with your sidewinder pipe.
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