Strm Trpr

Thank you Jerry, well said!! I will be buying one of these baskets for my future motor build!!

Excellent!! Is the cost of 7075-T651 the limiting factor in using that alloy instead?

Since you mentioned Tensile Strength and how it's the important spec. It's also important to point out that at 212*F 6061-T6 has a tensile yield strength of 38,000 psi. 7075-T6 has a tensile yield strength of 65,000 psi and at 212*F.

What alloy aluminum are these baskets made from?

https://www.amsoil.com/shop/by-product/motor-oil/2-stroke/dominator-synthetic-2-stroke-racing-oil/?code=TDRQT-EA Half way down the page under applications. Fuel to oil you'll have 50 ppm of fuel to 1 ppm of oil, so yes, your fuel will be richer and so will the air/fuel ratio. You'll have more fuel ppm in your air/fuel charge if you go to 50:1, so yes, your jetting will be richer too. Yes, you'll need at least 50/50 mix. Leakdown test your motor and report back. If you find any leaks, you'll want to address them. Once you're all sealed up and you're ready to tune, mix a fresh batch of 50/50 race/pump with dominator at 50:1. Did you confirm your jetting? Pilots? What Needles do you have and what clip position? Mains? Dial your motor in to your elevation, then tuning for elevation is as easy as changing the mains 1 size per 2k ft elevation change. Going down from 4k ft to sea level would require richening up the mains two jet sizes. You might need to fatten the needle a touch, but with 30 pilots that thing has got to be a pig at 4k ft and will get better asl. Then once your close you might need to tweak the airscrews a touch to get the throttle to snap off idle.

Amsoil Dominator is designed for 50:1. The compression results seem very high for a stock head at 4k ft asl. The head has to be shaved and that's why he said to use race gas. What was the elevation were the previous owner rode? When you come down to Glamis from 4k ft asl your static compression is going to increase to > 160psi... Scroll down almost to the bottom of the page to the "Approximate Cranking Compression" table. http://www.nossmachine.com/banshee_heads.htm FAST Sync Tool http://www.farmandsandtoys.com/partdetail.asp?partid=59

I'm very excited to see these results!!

OK, so for shits and giggles, please list all of your mods. I saw you're mixing 32:1 with 91 octane. What oil are you mixing? I run Yamalube 2R at 16oz to 5 gallons of fuel nets a mix of 40:1. Been running that ratio since 95 with zero mechanical failures. 32:1 is rich as hell for today's oils. Rich, well, it's actually lean if you think about it in fuel ppm. 32:1 means for every 1 droplet of oil, you have 32 droplets of fuel. 40:1 increases your fuel to oil ratio. Make sure your fuel is fresh when you're tuning. Idle must be dialed in. I shoot for 1500rpms with an eBay two stroke digital tach and carbs sync'd using a FAST's carb sync tool to measure vacuum during idle and at part throttle, 5500rpms. Your tuning is primarily done without air filters, so when you put a dirty or over oiled air filter on your motor, it's going to richen up your tune a tiny bit due to less air actually entering the motor due to the dirt/oil restricting airflow. You want fresh, clean air filter(s), << not sure what your set-up is. And, you need to do a proper plug chop to dial in your mains. If you do not know what it is or how to do it, Google "plug chop banshee hq". How old is your machine? And if the clown you bought it from was a lying POS, then you really don't know what you have. Check compression and report back. Pull both plugs screw in a quality tester, not harbor freight, at a minimum, a Craftsman tester, kick the piss out of it until the needle stops. Hold the throttle WFO to get as much air in there as possible. And last but not least build a leakdown tester.

You're right, so allow me to clarify!! Almost all motorcycle engines are not countenanced!! I'm unaware of any that are.

Negative, if you're coming down in elevation, it's a main jet size larger per 2k ft. Air temp also comes into play. The colder the air the richer you need to be. IIRC, every 20* colder is main jet size larger/richer. We're talking stock carbs here.

No way in hell a stock motor needs 330 mains especially at 4k ft asl. 4mil dune port stk cyl's are usually around 30 pilots, 330 mains with the needle clips in the 4th groove. You really need to do a leadown test to make sure you don't have any airleaks.

Agreed!! The entire suspension has to go immediately. To do it right, it's $4k alone for suspension, if not more. I'm not keeping track of my $$$ I spend on my ride, just the smiles it gives me!! Maybe $3k, and that's really pushing it. No veteran BHQ member will spend $4k on a stocker, no matter how clean it is. GLWS

Yeah, I read that and I'm looking forward to grabbin a set of PC's. I have some being held for me, now it's just a matter of funds.

I'm super curious about your thoughts on the CPI's and Snipers on your 4mil stk cyl.

Nice, that's exactly what I'm talkkng about right there!! FWIW, I believe all Raptor 700's share the same calipers with YFZ450's, so that'll broaden your search results. Check RMATV to verify part numbers, but I'm almost 99.99% positive that's the case. I'm pretty sure 09 YFZ450R or newer is the MC you want. Maybe compare part numbers of the later model Rapor 700's MC's too.

Word!! Fuel econ is huge for me too. I'd like to try out a set Driveline 4mil 66mm bore cylinders when I'm ready to build my motor. I'd get them play ported also to maximize area under the curve rather than shoot for a big number. I might also pick up a set of beat PC pipes to try out instead of the T5's and see what's what. If the PC's rev faster, maintain similar peak numbers and rev out as far as T5's or farther, then these T5's will be for sale...

Man, you're jetted fat all over the place for 4000ft. You're leaving a lot of response on the table. 310 mains are what I run at the ocean. Doesn't get much more sea level than that. My stock carbs are bored out and I run pods. I'd say you're jetted perfect for Glamis. Hopefully someone that's ridden there can verify your jetting. If I were you, and I was jetted that fat for 4000ft, I'd start asking why? Or maybe you like your Banshee mild mannered. You may want to consider doing a leak down test just to be sure the rich jetting isn't hiding an airleak. Airleaks cause the motor to need more fuel due to running lean. What ratio are you mixing your fuel? And what are your compression test readings?

carbs? reeds? intake(s)? timing? pro-mod? clutch?

EK X-Ring from FAST. $89 8700# tensile strength. I have a stock length x-ring that I used one weekend on my stock length swingarm before going to +2" $40 shipped if you want it. You'll need a new master link though. Get it from Jeff.

Nice, I want to know the results of both of those pipes on your play port 4mil. What are the rest of your supporting mods?

What do you run now?

That's because single cylinder motors are not counter balanced...

Check my mod list Haas. Already rockin a set of T5's. I've ridden SLP's. They make a ton of mid-range, but peter out super early. For a Banshee that is a trail riding tractor they're the shit. For a Dune port, they suck farts out of elephant asses! I've ridden CPI's but that was a 485 PV Cheetah, so that didn't count. I've gotta line up on a set of PC's that I'm gonna try out soon.

I clock the valve stems when mounting the rims. Then I lower pressure to 1 psi or so and go do a few hard pulls. The beads will slip on the rim and the paddles will sync every time. Reinflate to your riding pressure. Handled!!

As you know, SLP's have a ton of bottom-mid, but I do not like how they straight fall on their face. My buddy's 89 developed a wicked steering wobble at speed, so I called it off, but I never found the top of 6th gear with the T3's.