Author Topic: Subaru over so what's next???? 2008 Build - Tillotson 212E  (Read 774 times)

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Offline CC-CODER

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #15 on: February 07, 2021, 10:12:02 PM »
Looks like you performed a heimlich maneuver and released the choking obstruction, now that engine can breath again. Hee Hee
🤦🏼‍♂️ Chuck 🤷🏻‍♂️

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #16 on: February 08, 2021, 09:25:09 PM »
And it is no longer addicted to crack.  :D
Tom

  >:D    

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Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #17 on: February 15, 2021, 12:49:21 PM »
About ready for water testing. Just need to mount the battery and seat.


Tom

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Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #18 on: February 16, 2021, 06:35:05 PM »
Wow this ran good!! Really impressed so far. I've got some tinkering to do with governor and spring pressures related to starting and idle control, and charging system upgrades, but otherwise this engine combo is quite promising. TCT carb is easily adjusted without taking the motor out of the boat, idle is easily adjust too.

Tom

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Offline CC-CODER

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #19 on: February 16, 2021, 07:35:35 PM »
Promising results indeed. It's nice to see good results on the first test too. Although, I wouldn't expect anything less from a Painless overhaul. Congrats!
🤦🏼‍♂️ Chuck 🤷🏻‍♂️

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #20 on: February 17, 2021, 04:59:10 PM »
Thanks. Very encouraging results for sure. I upgraded the charging system today, regulated for LifePO4 use. 🤓👍
Tom

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Offline Larry

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #21 on: February 18, 2021, 01:49:41 PM »
Sounds like it's running good.

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #22 on: February 18, 2021, 02:27:34 PM »
Indeed, it is. Tillotson makes a large bore version the TCT carb that I'm using, so I ordered one to try and we'll how it works next week if it arrives on time. Any gains would be worth it.

 >:D
Tom

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Offline Duff

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #23 on: February 19, 2021, 11:04:42 AM »
"COOL" place to mount the regulator ! \./8

I like the looks of that starter too. It looks protected and possibly the shaft is stronger if it has a bearing inside the end cap.

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #24 on: February 19, 2021, 12:15:51 PM »
Yup, keeps it simple too. Less vibration and heat mounted there were bonuses. I just wish there were flywheels for these with more than 2 magnets for charging, low rpm doesn't really do much. Subaru had 4 magnets and had more low rpm current.

Unlike the Subaru, the starters on these are cheap and readily available, but they don't spin as fast as the Subaru starter so cranking is a little sluggish by comparison. Gets the job done and that's really the important part I guess. lol
Tom

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Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #25 on: February 24, 2021, 09:26:46 AM »
More testing yesterday, really impressed with this motor so far. It's got some grunt for sure. Have a bigger carb on the way to see if anything more can be gained, but other than that I haven't found anything else to change yet. Runs great!

Tom

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Offline George

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #26 on: February 24, 2021, 12:58:14 PM »
   So far, which engine do you think is best.  212e or ex21?  better charging system on the ex21 should be worth a couple points. 
Airplane George

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #27 on: February 24, 2021, 02:32:20 PM »
They each have their up's and down's. Subaru is a much higher quality engine with a Mikuni carburetor (throttle and choke easy to adapt), overhead cam, great charging systems up to 200 watt, exhaust port on top and easy to make an exhaust for, power is good. So it's a very reliable, quiet, smooth, easy starting engine, easy to work on.

Tillotson is a clone based engine with overhead valves, so it's noisier by nature, exhaust port is oriented out the back of the head so making exhaust is much more involved. I upgrade to Tillotsons TCT carb (going to test their larger TFT carb next week) but the linkage movement direction is opposite of the Subaru and that complicates adapting... but the fact the motor will not start without some throttle added, and the governor had to be retained to open the throttle to some degree when not running so it would start easy so the whole conversion process is much more complicated and involved to tune out the bad manners it inherently has. Charging system is adequate, but even with dual coils and regulator you aren't going to be powering a whole lot without hitting it's limit. Most people wouldn't notice so not a big deal. BUT, power wise it's making up for all the things I didn't care for. And the fact the TCT/TFT carbs can be tuned with the motor in the boat without taking anything apart (so I can tune on the water, and don't even have to go to shore). That means no going home to swap jets and drive back out to the river to test again. So that's a big plus. Parts are readily available, very affordable, and for those who like to experiment with performance parts they're out there everywhere.

So ultimately it boils down to making lemonade. The Subaru is gone, and making the best out of what's available with the Tillotson isn't the only way forward but moving forward is the only option and it's the most affordable bang for the buck that can be made to work and feel equally as nice if not maybe better than the Subaru. Longevity is the only thing that is in question, but with regular maintenance / oil changes etc.. I don't think that's going to be a big issue. Parts are cheap, and you can buy anything you need individually or as an entire spare engine without breaking the bank. I have to admit I've really been enjoying my outings with this boat, it's set speed records for the one piece hull that I've experienced so far and that alone is enough to impress me. Motor has some serious grunt.  \./8
Tom

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Offline George

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #28 on: February 24, 2021, 03:33:43 PM »
    One big plus for the Subaru, I have a brand new one sitting in the garage, waiting for me to find it a mokai.
    Seems like there should be something in the motor cycle world that would work in a mokai.  Then there are the two strokes, I don't like them but for the go fast people they do have a high grunt/wt ratio
Airplane George

Offline Painlesstom

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Re: Subaru over so what's next???? 2008 Build - Tillotson 212E
« Reply #29 on: February 27, 2021, 05:20:48 PM »
Tillotson makes two different versions of their TCT carburetor, the TCT and the TFB. The TFB has no restriction in the throat and flows more air, had to try one to see how it compared. It made the engine a little more cold natured but it did add noticeable performance. The power this engine makes has totally surprised me, and every trip out it just keeps getting better. Here is my test run this morning. I know it's a bit long, but I wanted those really interested in this to be able to see the real world unedited footage. So no hyperlapse or music to skew the reality. Next test will be in an older hull to see how it performs in that, and then I'll be working on a cold air intake to see how much performance I can gain back from sustained full throttle heat soak. Regardless it's been outperforming everything I've run so far even though it's sucking hot air. Beast motor!  ;D

Tom

  >:D    

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