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Old 06-27-2013, 04:59 PM   #21
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Originally Posted by miata2fast View Post
Have you ridden the 4 strokes yet? It makes riding sand fun again.
My brother's yz is a 4 stroke so I guess that makes it a yz250f?

I ride a super clean 99' Honda cr250. It is incredibly fast but I have yet to fully setup the suspension for trail as opposed to track. It is scary in 4th wide open in sand. I can toss it around very easily because it is light but it just is not very confidence inspiring with how squirrely it can be sometimes.

As I said when I get on my brother's 4 stroke and he rides my bike he cannot keep up because I have learned to ride fast on the trails on an improper set up so when I switch to his I can just blow him away. I've thought long and hard about trying to trade for 4 stroke cr250. Not sure just yet if I want to because I actually like the 2 stroke motor a lot.
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Old 06-27-2013, 05:02 PM   #22
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One day I'm going to do that to mine. On completely stock internals they hold that kind of power all day long. The same guy made 185whp with forged internals and lower compression. The ECM is fully tunable from the factory and has unused imputs you can add a map sensor to. Relocate the AIT sensor, use speed density and tune it up!

His most recent setup completely hides the turbo under the bike for a good low CG and stealth setup.



Although I have enough trouble with my turbo miata, and at least my bike is stone cold reliable.. so i probably shouldn't attempt this.
SO

MUCH

WANT

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Old 06-27-2013, 05:08 PM   #23
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I have been out of the game for a few years now, miss it terribly sometimes.

I had a YZ450. I owned Jason Thomas's Pro AMA supercross bike that he retired, a 2000 YZ250. I picked it up soon after it's retirement. I broke 2 collar bones and almost cut my finger off with that bike, among other incidents. All in one year. Good times.

Funny thing is that when I got the new 450, I rarely crashed. I think that the 250's chassis was worn enough that it was too loose handling wise. I would say that the 450 was as fast as that worked over 250 if not faster.

Before I am too old, I would like to own a KTM 525.
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Old 06-27-2013, 05:11 PM   #24
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Not sure just yet if I want to because I actually like the 2 stroke motor a lot.
Wait till you ride a 450. It is intoxicating.
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Old 06-27-2013, 08:10 PM   #25
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After 12 seconds on search tempest, here's a plated 520EXC SM in Chatanooga for $3300:

2002 KTM 520 SuperMoto


I bet he'd take less, and shipping a bike is cake.




Actually, I might buy it, haha...
I'm in California. I'm not shipping anything that size. I have to be able to ride it home, no more than 2-3 hrs away.
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Old 06-27-2013, 11:33 PM   #26
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Update:
Kit has been purchased. Along with some other minor upgrades. Mmm boost..
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Old 06-27-2013, 11:37 PM   #27
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Seriously? ******* awesome. Please make a build thread for it.
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Old 06-27-2013, 11:46 PM   #28
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This is going to be interesting. At first I thought this was a dream thread. Didn't think you were that serious.
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Old 06-28-2013, 01:00 AM   #29
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I make impulse purchases sometimes. This is one of them. Hahah.
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Old 06-28-2013, 01:04 AM   #30
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Teaser.
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Old 06-28-2013, 02:11 AM   #31
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Dude. Epic. Awesome. Yes you'd be better off to buy one of those other bikes but this will be COOL.

And that turbo Buell... EricZ's bike. Watched an on-bike vid of it the other day, it's nasty. Hearing it made me miss my Buell soooo bad!

Don't know if you know this, but Erik Buell was actually building a turbocharged Buell for production. The XB was originally conceived to be a turbocharged bike, and they got pretty far into development when Harley pulled the plug. '03-'05 XBs have a vertical hole in the left side frame -- that was originally meant for a boost tube as used on EricZ's bike. Erik had the bikes putting out 150 whp and 120 wtq with factory-level ridability. If he had built that bike... If only Harley had let him build that damn bike.

********. I don't swear often but when I do it's likely in some way related to Harley-Davidson and their asshattery.

/threadjack
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Old 06-28-2013, 02:29 AM   #32
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you should put nitrous on it too
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Old 06-28-2013, 11:23 AM   #33
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Quote:
Originally Posted by turbofan View Post
Dude. Epic. Awesome. Yes you'd be better off to buy one of those other bikes but this will be COOL.

And that turbo Buell... EricZ's bike. Watched an on-bike vid of it the other day, it's nasty. Hearing it made me miss my Buell soooo bad!

Don't know if you know this, but Erik Buell was actually building a turbocharged Buell for production. The XB was originally conceived to be a turbocharged bike, and they got pretty far into development when Harley pulled the plug. '03-'05 XBs have a vertical hole in the left side frame -- that was originally meant for a boost tube as used on EricZ's bike. Erik had the bikes putting out 150 whp and 120 wtq with factory-level ridability. If he had built that bike... If only Harley had let him build that damn bike.

********. I don't swear often but when I do it's likely in some way related to Harley-Davidson and their asshattery.

/threadjack
Agreed, OP's impulse purchase is awesome. This little bike is going to be so damn cool.

In regards to the Buell turbo thing, yup I'm aware. This is why the ECM already has unused inputs and can be adapted to using a map sensor so easily. Also the hole in the frame, mines an 04 chassis so it has the hole for the charge pipe to hide in. This is all part of why i really want to turbo mine one day. Turbo bikes are fascinating.

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Old 06-28-2013, 03:31 PM   #34
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Only local motorcycle tuner with a dyno said he's not familiar with turbo bikes at all. What do I tell him to look/do differently than tuning a NA bike?
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Old 06-28-2013, 03:43 PM   #35
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Uhh, watch out for boost? LOL, seriously though timing needs to be retarded more than a na bike among other things. Be careful with that tuner, maybe take it somewhere that can tune it properly.

on a side note i youtubed that turbo kit. looks hilariously awesome to me.

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Old 06-29-2013, 12:01 PM   #36
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Most of that is him snatching on the bars as it comes into boost in 2nd and 3rd. It's not as violent as he makes it look.


It is still significantly faster than stock.


What are you using for tuning? A Power Commander? Do they even sell a Bazzaz for WR-Xs?

For the record, I DO think this is cool and applaud your ability to say Eff It and buy the turbo parts. I'm way too analytical to just drop coin on a kit like that on a whim, lol.
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Old 06-30-2013, 02:34 PM   #37
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Quote:
Originally Posted by vehicular View Post
Most of that is him snatching on the bars as it comes into boost in 2nd and 3rd. It's not as violent as he makes it look.


It is still significantly faster than stock.


What are you using for tuning? A Power Commander? Do they even sell a Bazzaz for WR-Xs?

For the record, I DO think this is cool and applaud your ability to say Eff It and buy the turbo parts. I'm way too analytical to just drop coin on a kit like that on a whim, lol.
Power Commander III. Basically just adjusts fuel.
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Old 07-07-2013, 03:18 PM   #38
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Tear down and cleaning has just begun. Trubo should arrive next week.

Also just picked up a kitten. Some Miata owner had 100+ cats in his house. Humane society is still running at full bore so I helped them out a little.
Largest Case of Cat Hoarding in Chico in Over a Decade | Local News - Home

She stalks me, and sleeps on her back. I approve.


*girlfriend's hand, not mine. Mine are more feminine
Attached Thumbnails
Turbo Supermoto?-e54ec6c4-a950-47f9-90e7-fe84aa396709-4148-000003f11e5d9ff1_zps40e6077a.jpg   Turbo Supermoto?-f0ce2c01-4588-460d-8300-df99b33b79b0-4148-000003f17d962129_zpsb81fadfb.jpg   Turbo Supermoto?-803ecd16-dbab-470a-b950-1a5b9d79b6e3-4148-000003f20d8a0260_zps4e28d707.jpg  
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Old 07-08-2013, 02:20 AM   #39
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tubos and kitties in this thread.

MT approves
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Old 07-14-2013, 01:41 AM   #40
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Got it running, took it around the block to check for leaks and to let it warm up (stayed out of boost). Came back and let it cool down for 2 hours, went to check exhaust bolts and turbo bolts and I snapped exhaust stud off in the head. Sad face. It will have to wait longer for boost now. I have to tear everything off tomorrow and hope I can extract the stud easy enough and find a replacement at a hardware store since all the bike shops are closed on Sunday.
Attached Thumbnails
Turbo Supermoto?-ff08053d-ef8a-42e8-8a9c-810df8a4c8b1-5667-0000049c15813b87_zpsffe8438f.jpg   Turbo Supermoto?-36fbc732-844e-4279-8740-b1044319d4f3-5667-0000049beb888daa_zps980f3d8e.jpg   Turbo Supermoto?-a49608ca-5320-448e-8483-adb8252d8e78-5667-0000049b92d71432_zps07d94548.jpg   Turbo Supermoto?-wr250x005_zpsf33280b6.jpg  
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