Operating temps

Programmer nwester at eidnet.org
Sat Sep 25 14:52:51 GMT 1999


Yes--very serious. Hot runs (180F-190F) lose 2-4 tenths consistently, cold
runs (130F) gain overall 1/8 and quarter mile times. Ideally--IF we could
ICE up the intake air and run the head temps at 190--then we have the theory
in action. It's just that in reality--it doesn't happen. I guess, we'll end
up going to methanol in the end to keep things cooler--right now we're
racing 12.5 CR with 87 octane--another theory basher...

Lyndon.
-----Original Message-----
From: CSH-HQ <nacelp at jvlnet.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>;
gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Friday, September 24, 1999 11:19 AM
Subject: Re: Operating temps


>>The thermal expansion "thing" is great in theory--but that's where it
ends.
>
>Have you done some serious back to back testing, to show otherwise?.
>Grumpy
>
>
>>Lyndon IPTECH
>>-----Original Message-----
>>From: Aaron Willis <darkmonahue at awwwsome.com>
>>Date: September 23, 1999 4:21 PM
>>Subject: Re: Operating temps
>>
>>>>Yea, the colder the engine the less effecient, the IC process is
(thermal
>>>>expansion).
>>>>
>>>>Turn air at atmoshperic conditions into high cylindar pressure. i.e. the
>>>>more thermal energy lost through cooling, less is avialable to cause
>>thermal
>>>>expansion.
>>>>
>>>>Ward
>>>
>>> FWIW, I understand Lingenfelter likes to run his engines very cold to
help
>>>eliminate detonation.  My own limited, carbureted experience seems to
>>>support this theory.
>
>Did you do any back to back testing thou?.
>
>
>>>
>>> Aaron Willis
>>> Garage TE51 International  http://surf.to/garage-te51
>>> ICQ # 27386985
>>> AOL IM: hemiyota
>





More information about the Gmecm mailing list