Even More TPI questions

Thu Jan 16 13:08:50 GMT 1997

I've been thinking about using this injector for water/methanol injection,
any ideas on that ?

dzorde at geocities.com

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>> 
>> > Ok - lets say that I have an '87 TPI - basically stock.  Can I
>                                          ^^^^^^^^^^^^^^^^^^
>> > just swap out a PROM for the '89 TPI to eliminate the cold-start 
>> > injector
>> > on my '87??  IOW, is there a hardware(wire harness) difference
>> > that would prevent this (other than the cold-start injector wiring)
>> > (this may lead to more questions ;)  )
>    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>> 
>> Yes!  You can do exactly that!.  It is generally recommended that you 
>> disconnect the lead to the existing cold-start valve and, in fact, 
>> completely remove it and plug up the hole in your manifold and fuel 
>> rail.  I have not accomplished that, yet, but DID disconnect the lead. 
>>  JAH
>
>Great - that's good to know.  As predicted, I have more questions now....
>
>Let's say I wasn't quite honest when I said "basically stock".
>
>Let's say that I have a Vortech supercharger and that I know that
>I'm a little lean in the upper rpm range where it's starting to
>really put out some boost....  (uh oh - detonation!)
>
>Is there an easy way to use this 9th injector(the cold-start one)
>to help keep me out of detonation - mainly as a crutch for
>too small factory injectors??  I know I don't want to keep
>raising the fuel pressure because the injectors don't last
>long under 80+psi right??    So maybe use an rpm activated
>switch to trigger this injector at say 3500rpm???  Is this
>feasible??
>
>thanks again for any insight!
>
>T.
>--
>Terry Hartman           voice:(972) 519-2920           ,,, 
>txhartma at spd.dsccc.com                                (o o)
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