Author Topic: Ex17 Heads Gone, Have Welder Though!  (Read 249 times)

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Offline Painlesstom

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Ex17 Heads Gone, Have Welder Though!
« on: February 07, 2021, 08:54:03 AM »
Hoping my DIY Ex21/17 head emulation works as planned. Figured if I can't get 17 heads anymore I should try to recycle the 21 heads I have dozens of. They aren't worth anything so why not try! Good practice with the spool gun too.  :D Stay tuned for testing!!
Tom

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Offline George

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Re: Ex17 Heads Gone, Have Welder Though!
« Reply #1 on: February 07, 2021, 01:10:54 PM »
     Amazing! , I have a few welders but never tried welding aluminum.   What exactly goes wrong with the heads or are you just building them up to raise compression?
Airplane George

Offline Painlesstom

  • Painless Tom
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  • Engine: 1 EX21/17 / 2 KX21
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Re: Ex17 Heads Gone, Have Welder Though!
« Reply #2 on: February 07, 2021, 01:58:56 PM »
Just wanting to raise compression, EX17 and EX21 heads have the same port and valve size, only difference is combustion chamber size and that's what I'm doing here by filling in and reshaping. Will probably add a bit more compression than 17 head so might get a bit more power. Testing will tell all though, won't get that boat on the water until next month probably. Anxious though, love testing stuff like this.  >:D
Tom

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Offline Lwing

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Re: Ex17 Heads Gone, Have Welder Though!
« Reply #3 on: February 12, 2021, 06:41:29 PM »
Mad scientist skills, lol, you need a bigger budget to really frankenstein one of these to rip,
I bought a lotto ticket today, if it comes through I