Custom tuning

[Mark Romans]

Find a big hill... for starters!,  wait for tail wind...
-----Original Message-----
From: TBK <terryk at foothill.net>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Sunday, July 19, 1998 9:30 PM
Subject: Re: Custom tuning


>Come on.... What Vette will actually go 132!??  :^)
>
>-----Original Message-----
>From: Mark Romans <romans at pacbell.net>
>To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
>Date: Sunday, July 19, 1998 9:21 PM
>Subject: Re: Custom tuning
>
>
>>In the last week there were some posts about buying used tech1's on the
>Team
>>zr1 web page.  I'll check and let you know. New one's are about $1400.00
(I
>>think).  I'll check on that too>
>>
>>BTW...  Just use rpm,  lv8 and spark vs tdc and knock retard and the math
>>actually works.  You can find where the ecm is looking at on the spark
map,
>>subtract the deg removed due to knock (If any) and voila!  It's right
where
>>it should be.  So I took the car out,  (On number 6 trip by now) out to
the
>>top secret test area (Industrial blvd) and put the car in 4th, slow to
>about
>>700 rpm's, hit the ol space bar on the diacom and floor it!  All the way
to
>>132 mph!,  Brake like hell so I don't die!  Damn road's rough!  Go home
>>transcribe data,  see what needs to be done to map and then test again!  I
>>just don't want to see the number of degrees of knock retard maxed out.
>>What is really interesting is the screwy lookin part of the map in the top
>>right,  well the car actually runs there at low rpm's and wot!  I have
>>pulled out spark there like crazy.  Also expanded the section of 20 deg
>>advance in the idle area and it idle's at 20 initial now!  Better all the
>>time!  And all this with the outside air temp at 109f,  if it doesn't
knock
>>now it never will!  With ac off coolant temp would get down to about
>199-206
>>deg range.
>>
>>Let me know on the cd for peter when you want it and where.
>>
>>Mark
>>
>>
>>
>>
>>-----Original Message-----
>>From: TBK <terryk at foothill.net>
>>To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
>>Date: Saturday, July 18, 1998 11:42 PM
>>Subject: Re: Custom tuning
>>
>>
>>>Just how much are Tech I's?
>>>
>>>Tk
>>>-----Original Message-----
>>>From: Terry <thartman at gte.net>
>>>To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
>>>Date: Saturday, July 18, 1998 9:23 PM
>>>Subject: Re: Custom tuning
>>>
>>>
>>>>TWong29770 at aol.com wrote:
>>>>>
>>>>> Has anyone on the list had any experience with custom tuning of a late
>>>model
>>>>> OBD2 GM VCM/PCM from TTS or more commonly The Turbo Shop in Los
Angeles
>>>CA?  I
>>>>> talked to the owner and he seems pretty knowledgable, and susposidly
he
>>>has a
>>>>> chassis dyno on sight for his tuning calibrations?
>>>>
>>>>Steve Cole is good IMHO.  I have heard that Mike Licht of Modern
>Musclecar
>>>>can also program the latemodels (I have no experienece with either so
>>>>I can't personally make a recommendation)
>>>>
>>>>> My Diacom plus can't even access
>>>>> the data stream and the only way I can diagnois problems is with a
>>>barrowed
>>>>> Tech2 from a friends dealership.
>>>>>
>>>>> Tom Wong
>>>>
>>>>Try these URLs.  I know you don't really wanna invest in yet another
>>>>scan tool - but it would appear that Rinda is really dragging their
>>>>feet (so to speak) on updating Diacom with the OBD-2 specs...
>>>>
>>>>http://www.obdii.com/autotap.html
>>>>
>>>>http://www.easesim.com/products.htm   (this one is NOT CHEAP!!!)
>>>>
>>>>hope this helps,
>>>>
>>>>T.
>>>>
>>>
>>
>>
>