setting ignition curves without dyno

[Bruce Plecan]

-----Original Message-----
From: Clarence L.Snyder <clare.snyder.on.ca at ibm.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Saturday, November 14, 1998 1:50 PM
Subject: Re: setting ignition curves without dyno


This whole thread was about how, an individual was having problems with low
rpm tuning.
While still interesting, when is a DIY gonna use/need something
like that?.
Doing high speed tuning as what I understand your Johnny Law
comment, would mean doing WOT high speed trials, which I have
never endorsed, doing on the street.  For that they have dragstrips.  For
doing 60' times just get permission from someone with a large parking lot.
If your lucky maybe a neighbor has a long drive, and you
can do 600' passes, (of course with permission).
  Just as a ?, how do you duplicate the under hood air flow of a
car doing say 65 MPH on a dyno?....
Bruce

>Bruce Plecan wrote:
>>   I also think tuning in bad weather is good since you learn more
>> about corrections.
>>   I while I find the loaded dyno interesting, it's to me it still no
better
>> than real world testing.
>> Cheers
>> Bruce
>> >
>The advantage, as I see it, is you are never far from your tools, jets,
>specs, etc, and it sure takes a lot less time than driving to your
>"proving grounds" for every check - and taking a chance on Johny Law
>catching you at the high end of your run if you attempt to do it on
>public roads, however secluded.
>Sure, there are variables you have to deal with. Always will be in this
>imperfect world. The repeatability of the tests on a rolling road just
>cannot be equalled elsewhere - and you can take that to the bank.
>Anyone planning on doing this on a "commercial" basis, meaning on a
>regular basis, would find the rolling road well worth while.
>