Question about...

timsiford at hushmail.com timsiford at hushmail.com
Thu Nov 16 13:55:11 GMT 2000


Sounds like I am doing everything wrong ....

160deg thermostat
AFRs at WOT similar to the STOCK AUJP chip (curve shifted, slightly higher)
Mega Timing

Oh well.  Guess if I did it correctly then maybe I would be faster?  Maybe 
my car will live longer?

I tried less timing.  I tried less fuel.  I tried less timing and less fuel. 
 The car really likes this setup.  And, with 12.2's @ 112 on the stock bottom 
end I am *-NOT-* complaining.  I have seen very very few L98s do this so 
I must be doing something right.  Very good points made about longevity. 
 This is not my daily driver ... actually hoping that I run it into the 
ground so I have a reason to build my 420.  So, longevity is not my goal 
here.  I'll give the car what it likes in order to get the best times out 
of her.  Admission: What it likes and what it -needs- may be two different 
things.  Understood.  But, it runs faster with what it wants.  I know several 
others with similar combinations (we compared bins) who are running in the 
11.8's/11.9's with a 383 all naturally aspirated (and those cars are daily 
drivers).  A good point is that I want to make is that these Air/fuel ratios 
and those timing numbers are only for WOT.  They are not for daily driving. 
 They are not that way for 'normal everyday driving'.  My BLMs are about 
128 across the board and the timing is conservative.  

Somehow though ... I don't think that I am running that 'calculated' AFR 
at WOT.  I'll know in the spring when I take her to be dyno'd and get a 
WB on it for a couple pulls.

Thanks for all the info and the heads up regarding longevity.  I appreciate 
all the info.  All very good points.

Does anyone have a similar setup and 30lb injectors??  What pulse widths 
are you guys seeing at WOT (at what RPMs)?

Tim

At Wed, 15 Nov 2000 22:08:32 -0500, "Bruce Plecan" <nacelp at bright.net> wrote:

>
>
>That's what they do with the 160d Thermostats.
>Notice how they normally are a let down, in measured performance, but 
>still
>are in business.  They exist cause the feel fast and joe average is 
>happy
>with that
>Bruce
>
>
>> Seems this would be a 'trick' that unscrupulous chip makers would 
>use. fat
>> top end and mega timing... risking the blueprint?
>
>> ----- Original Message -----
>> From: Bruce Plecan <nacelp at bright.net>
>
>> > Also, have said rich and too much timing feels fast yet folks still 
>do
>it
>> > all the time.
>> > It just feels so good, folks do it.
>
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