ausmini :: View topic - How do you build a bullet-proof A-Series?

Oil starvation, and wear and tear are obvious, but what causes are there and what can be done to prevent it?

speedy wrote:

Thermo fan.

how can that cool better than a crank driven fan?

that'd free up some power, but would it cool better?

the speed of the fan is not tied to the speed of the engine. So you can have a 5000rpm fan acting on radiator of a 750 rpm engine.

Standard 998s with 1.25" SU and pea shooter are fairly bullet proof coz you can't rev them past 4000rpm

The thermo fan runs off a seperate sender which can either be put into the top rad hose or put a thermo cover with a sender hole in the side. Another benefit is you can leave the fan running with the engine off, which is also a benefit of an electric water pump, but I've never seen someone running one on an A series donk.

Author:	cush [ Fri Jan 05, 2007 12:31 pm ]
Post subject:	How do you build a bullet-proof A-Series?
What makes a mini engine die? Oil starvation, and wear and tear are obvious, but what causes are there and what can be done to prevent it? Discuss.

Author:	sports850 [ Fri Jan 05, 2007 12:35 pm ]
Post subject:
Cooling , cooling and cooling , make sure the cooling system is as good if not better than when they roled out of the factory . Nothing worse than having a hyper motor that you can't use fully because it overheats when pushed . Also because it can kill it quickly ....

Author:	cush [ Fri Jan 05, 2007 12:37 pm ]
Post subject:
So how do you improve it? (semi-rhetorical)

Author:	sports850 [ Fri Jan 05, 2007 12:38 pm ]
Post subject:
Acid clean the block to make sure there's nothing hiding in the waterways , new radiator or better radiator , timing right , umm ....

Author:	speedy [ Fri Jan 05, 2007 12:45 pm ]
Post subject:
Thermo fan.

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Author:	Blokeinamoke [ Fri Jan 05, 2007 12:49 pm ]
Post subject:	Re: What makes a mini engine die?
cush wrote: Oil starvation, and wear and tear are obvious, but what causes are there and what can be done to prevent it? willy, put him in a Verada

Author:	cush [ Fri Jan 05, 2007 12:53 pm ]
Post subject:
speedy wrote: Thermo fan. how can that cool better than a crank driven fan? that'd free up some power, but would it cool better?

Author:	Blokeinamoke [ Fri Jan 05, 2007 1:02 pm ]
Post subject:
cush wrote: speedy wrote: Thermo fan. how can that cool better than a crank driven fan? that'd free up some power, but would it cool better? the speed of the fan is not tied to the speed of the engine. So you can have a 5000rpm fan acting on radiator of a 750 rpm engine.

Author:	speedy [ Fri Jan 05, 2007 1:39 pm ]
Post subject:
Its efficiency is not dependant upon on engine or vehicle speed. Your question was regarding making a bullet proof A-series, and this mod would IMHO be necessary for a street engine.

Author:	9YaTaH [ Fri Jan 05, 2007 1:50 pm ]
Post subject:	Oil
Oil is the best mechanic (my Dad told me that) so..don't be afraid to change your oil on a regular basis.

Author:	cush [ Fri Jan 05, 2007 2:05 pm ]
Post subject:
Blokeinamoke wrote: the speed of the fan is not tied to the speed of the engine. So you can have a 5000rpm fan acting on radiator of a 750 rpm engine. ah.. i didn't think of that.. thermo fans would attach to the same temp sender point and be located in the same place... who does them? feel free people to open this discussion up and make this an utterly thorough guide...

Author:	Anto [ Fri Jan 05, 2007 2:28 pm ]
Post subject:
Standard 998s with 1.25" SU and pea shooter are fairly bullet proof coz you can't rev them past 4000rpm The thermo fan runs off a seperate sender which can either be put into the top rad hose or put a thermo cover with a sender hole in the side. Another benefit is you can leave the fan running with the engine off, which is also a benefit of an electric water pump, but I've never seen someone running one on an A series donk.

Author:	cush [ Fri Jan 05, 2007 2:29 pm ]
Post subject:
is an electric oil pump a bad idea ?

Author:	slinkey inc [ Fri Jan 05, 2007 2:54 pm ]
Post subject:
Get a fully rebuilt 'S' motor, certain main strap, better oil pump, better crank, basically better everything, and don't put big exhasut and webers and stuff on to keep the ability to rev low. Failing that, just thrash out a 998 till it blows up, then buy another, and do the same with that, then when loacl supply runs out import from Japan (thanks Steve!) and continue.

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Author:	slinkey inc [ Fri Jan 05, 2007 2:56 pm ]
Post subject:
Anto wrote: Standard 998s with 1.25" SU and pea shooter are fairly bullet proof coz you can't rev them past 4000rpm The thermo fan runs off a seperate sender which can either be put into the top rad hose or put a thermo cover with a sender hole in the side. Another benefit is you can leave the fan running with the engine off, which is also a benefit of an electric water pump, but I've never seen someone running one on an A series donk. A guy in SA runs one on his Sports Sedan and another Sports Sedan I've seen in THE. http://www.hotbricks.org.au/members/rides/simon/index.htm