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Location:
East Maitland NSW
Registered:
December 2004
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Toymods Vice President
Location:
Sydney
Registered:
May 2002
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Re: Pistons
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Sun, 23 January 2005 10:45
 
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Basically you want the smallest surface area in the combustion chamber possible. This means if you have a small enough chamber in the head a flat top piston would be best.
I don't see you getting enough compression to make the most of a methanol only engine without some kind of dome though.
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Location:
East Maitland NSW
Registered:
December 2004
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Re: Pistons
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Sun, 23 January 2005 10:48
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would it be possible to put up some pics of pistons you recommend to use for this application.
thankyou.
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Location:
brisbane
Registered:
October 2004
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Re: Pistons
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Sun, 23 January 2005 13:43
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not that im an expert on methanol motors but
surely it the head has some influence on what
type of pistons you should choose?
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Location:
East Maitland NSW
Registered:
December 2004
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Re: Pistons
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Mon, 24 January 2005 09:49
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well im not sure what motor im using yet im still tossing up between a motorcycle motor and a suzuki swift motor. But i understand what you me an about the head but ive heard people argue the fact that flat tops are better and also that domes are better so im just after some infomation on the topic.
Cheers
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Location:
East Maitland NSW
Registered:
December 2004
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Re: Pistons
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Tue, 25 January 2005 14:26
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bump
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Location:
Lost in the K hole
Registered:
May 2002
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Re: Pistons
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Wed, 26 January 2005 01:39
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pretty broad, non specific question aint it 
depends on head, port, compression, squish, valves and plug position... plus more if you want to get meaty...
you dont know wheat motor you want to put it into yet, so how on earth can you possibly consider what piston dome to design for?
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Pistons
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Wed, 26 January 2005 11:33
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LOL... i have this car with this thing and i want this other thing and it's blue and and....
methanol = higher compression, ie 13:1 (from vague memory)
flat top, dome, dish... all depends...
turning a petrol motor into a methanol motor is straightforward, but you need to make sure you know what you are doing and WHY you are doing it.... and remember to double the fuel flow rate 
Cya, Stewart
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Location:
East Maitland NSW
Registered:
December 2004
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Re: Pistons
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Wed, 26 January 2005 11:41
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its for a racing catogory.
i know my question was a bit vague but i was just curious in wot people think. wot do you do to convert a motor to methanol anyway as i want someone to do it for me but id like to have some idea about wot they will have to do
Cheers
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Location:
Sydney
Registered:
February 2003
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Re: Pistons
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Thu, 27 January 2005 11:10
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ffs.
what,
not wot,
what.
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Location:
East Maitland NSW
Registered:
December 2004
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Re: Pistons
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Thu, 27 January 2005 11:13
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its for a racing catogory.
i know my question was a bit vague but i was just curious in WHAT people think. WHAT do you do to convert a motor to methanol anyway as i want someone to do it for me but id like to have some idea about WHAT they will have to do
im sorry about that its a bad habbit i go to get out of it...
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