Well let me try this again - has anyone had any experience with this head and an SLP signle pipe and can combo? Also using VForce Reeds?
What can be expected? Any help would be appreciated.
I ran 12.5-1 power addiction head ,SLP pipe, v-force reeds and SLP high flow intake this weekend at 800 feet of elevation cross-country in a foot of snow temp 25 degrees.Rpms were between 7000 and wide open for long periods of time steady hard pull,heat soaked motor water temps 123-125.Unleaded premium fuel only on Saturday with Slp's PCV map for pipe and reeds. had detonation. Switched to the ethanol plug to richen it up and did'nt have anymore deto issues but rode the sled a little easier also,worried about detonation. Sunday I added fuel with the PCV and one gallon of 110 race gas to 3 gallons premium non-ethanol,non-ethanol plug in sled. Added fuel in the spots that I could see by watching my EGT's. Sled is resposive with this combo and I would say it pulls just about 3 grams more weight than stock with this package. I also run the tied clutch and did with the motor stock also.Sled is 155 PRO-RMK. THOUGHTS maybe saturday my fuel was not a true 91 but I bought it that morning, conditions were hard pull with no break for the motor,also When you are at close to top rpms but not wide open the motor is at peak timing too which would retard a bit if I could have been wide open all the time. Just what I obseved on those days weather identical both days. sled runs good. rpms 8250-8300. I would say that above 6000 feet elevaton with the 13.5 heads you will not need any race gas just maybe a little more fuel. Hope this helps
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