MAF vs. SD

[Fran and Bud]

----------
>From: Mike Rolica <mrolica at meridian-mag.com>
>To: "'gmecm at efi332.eng.ohio-state.edu'" <gmecm at efi332.eng.ohio-state.edu>
>Subject: RE: MAF vs. SD
>Date: Wed, Oct 13, 1999, 6:10 AM
>

>Yep your configuration, apyu, is vats requires a 2000 pulse per mile vss
>input (open collector ,ground, open collector , ground..ect)  I know I just
>when through this with my 165 and the same broadcast code apyu.  You can
>make a vats bypass module like I did if you want to go that route, it costs
>about 5 bucks to make and work fine.  An optical pickup off of a 85, 86
>blazer or s10 with cruise works good.
>If you want I can send you the stuff you need for a vats bypass box part
>num. wire diag etc.  Involves couple capacitors 555 timer, npn transistor,
>and couple of resistors... I used one variable one to fine tune it.
>Mike Rolica
>EXT. 260
> :-)
>
>
>-----Original Message-----
>From: Bob Valentine [SMTP:bob at tecmark.com]
>Sent: Tuesday, October 12, 1999 11:53 PM
>To: gmecm at efi332.eng.ohio-state.edu
>Subject: MAF vs. SD
>
>Thanks for all the replies about what to do for a VSS.... seems I've got
>plenty of solutions now.   Big question now is still do I keep the '165 and
>stay MAF, or try and get a '730 and go SD.
>
>>From what I've read so far, SD seems to be more tuned to the exact
>application so it would reason that I'd be better off with MAF since the VE
>of my motor is probably nothing like a Chevy motor, much less my
>displacement is higher and my intake volume/config is nothing like a TPI.
>
>Also, is the current cal I have VATS?   ('89 165, APYU cal)
>
>Is there a problem bypassing the heater connections on the IAC body on a
>TPI throttle body?   This installation's pretty ugly as it is.... if I can
>leave that off it would make life easier.   
>
>
>--> Bob Valentine
>--> bob at tecmark.com