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what oil ratio do most of you that run power motors run. I do fine with 50/1 in my ported 701 but have been runnin 40/1 in the stroker.I hear that 30/1 can make more power but I dont see how that is possible more lube or not? as far as octane goes I keep hearing guys say their motor makes...

What kinda max timing are most advent and TL users running for freeride.I see some of the fitzgerald designed curves are as high as 36 deg through 5000 rpm on advents. Looks like most of them end up at the same final timing around 14,but hold some slightly higher #s a little further into the...

Im mixing about 60/40 ...93 oct to 110 leaded. Do these fuels mix ok? How much comp and timing do you need to be running to produce enough heat for this mixture to be optimum for its flash point?. Dropping down to straight 93 oct being a hotter burn from this mixture listed above,would the...

Im runnin 25 degree at 2000 rpm,at 190 comp with about half 110 to 93 oct for flatwater < this is rare and about 1gall 110 to rest 93 oct in surf. Im getting about 4 deg retard outa this enhancer at 7000 or so but dont really run top end in flatwater and never in surf. but even while doing carb...

I was using the black orings that mcmaster sells for it,but even sealing them down with yamabond they still got hot spots and blew out twice in a few months. I got the brown viton high temp ones from mcmaster and one of those blew out as well?

I have full specs with the 48 mil tops that have no screw holes,would be cool to have a 48 mill spigot mount on the stock single fa anything like this around? I noticed x metal has stock FA on 49 mil full specs,anyone know how this is done

With the electrode being a little lower,wonder is the BP7ES-SOLID plug gets a more efficient burn ?

Im running 2 year old dual 48s off another ski that sat for over a yr and using a external fuel pump mounted a tad higher than carbs with a single pulse line,with the 2 returns in a T going back through a 2.0 main jet back to the tank. brand new triple stage rad valves from ed,with a r&d intake...

Im wondering what octane rating would be as far as cost to mix 2 gallons of leaded 110 at 6 per gallon with 3 gallons of 93 at 2.40 compared to just running 5 gallons of av fuel at 3.90 a gallon what would be better? lastly switching between 93 oct and one of the 2 above fuel setups,is...

With different cranks I know there is no perfect answer here,but even a typical answer would help. For every mm you lower the transfer port height with sleeve placement ,how many degrees does it change the transfer port duration on a long rod 5 mil stroker?

I know the log rod has longer dwell time at TDC,using a enhancer and a rad flywheel,I will set it with a light.what is the max degree of static advance I could get away with using av100 fuel,primary surf ride ski but once in a while top end blasts for 10 to 15 secs

anyone ever tried the HT reeds,how do they compare in responce to the stainless stockers or the standard carbontechs

I have a 5 mill billet long rod rad crank,what would be the best size spacer plate to use with a 61 x northwest big bore sleeve kit installed? Im going to be using flat top pistons to try and get the cylinder as low as possible for low port timing.what is the maximum distance I can have the...

Ive read bp amoco has the best 93 oct gas,Shell close second.wonder how much diff in performance these net vs the cheapy off brand stations like citgo and the like.Ive gotten much worse milage in my truck with these cheap fuels,they only rate them at the pump at 92 oct here. Av100 isnt much...

Ive got one with a pretty good size extra depth dent in the back side for hull clearance,does this make diff in the way the pipe will hit,its prolly a extra 1/4 inch further in for a stretch of maybe 8 inches? extra thick glass reinforced hull on the sides,not sure a non dented chamber will even...

wondering if this is done with a rad charging flywheel,seen it done alot on msd wheels?

Trying out a new cylinder I got,unknown port job,different shaped,what do you guys think this will do best strange wear marks in the jugs.nothing you can feel.dont have the measurements in front of me right now.

http://www.mcmaster.com/#catalog/115/1152/=111hln Does this steering nut also fit the x metal steering system,pretty sure its the same as umi? does anyone know where I can find the stainless acorn nuts that fit the girdle bolts on the ada head. they are the only thing not listed here...

lowered the comp on this motor with a diff mrd head slab,squish is right around 50 with a stock head gasket. Stock gasket looks to be 53. I have a couple copper gaskets that are about 22 to 23. would this be to narrow a squish. Aprox how many pounds of compression would be gained going from a...

Between all of us junkies we have poped so many diff brands of motor mounts it crazy,what have you guys had the best experience with?