SpeedPro Tuning

Bob Wooten r71chevy at earthlink.net
Wed Jun 20 01:55:15 GMT 2001


Thanks for all the input.  I think that for the race car I am going to see
if we cant pull of a speedpro.  I have to talk with the partners & see what
they think.

BW

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
Behalf Of Jörgen Karlsson
Sent: Tuesday, June 19, 2001 12:15 PM
To: diy_efi at diy-efi.org
Subject: RE: SpeedPro Tuning


Bob Wooten wrote:

> Jorgen,
>
> How long does it take to tune in a new car motor setup from scratch (w/o a
> baseline tune)?
>
> Does not the speed pro setup have some kind of an auto tune w/the WBO2?

I think that I need 30 minutes to get the performance better then stock.
Most of that time is for making the ignition, VE and AFR maps.
Five minutes with the engine running is usually enough to pin the VE table.
After that I need an EGT meter for the economy part. Then I use a gtech or
similar device to find the best afr at full load.

You can play around for hours to optimize the result, but after half an hour
you are very close.

There are no autotune on the speedpro, ONLY autronic has a working autotune.
Autronic on the other hand is made to run open loop while the Speedpro is
made to run closed loop all the time.

When you are driving at a stable rpm and load you can press a button, I
think it was E, to correct the current VE site with the O2 correction used
at the time. This does not work...


Jörgen

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