Fuel Enrichment; TT vs Autotech (or coolant vs DPR)

[rfkellner at snet.net (Rick Kellner)]

The main reason I was asking is that the schematic, circulated a little
while ago, is supposedly based on the TT version with the addition of
the RPM trigger.  The only modification to this schematic that I have
heard mentioned, is replacing the conventional relay with an FET or
transistor.
So far it has only been mentioned and no hardware suggestions.
If anyone has any comments on this addition, please send them along.

Rick.

 

-----Original Message-----
From: scirocco-l-bounces@scirocco.org
[mailto:scirocco-l-bounces@scirocco.org] On Behalf Of C Boyko
Sent: Saturday, October 23, 2004 3:05 PM
To: Peter
Cc: scirocco-l@scirocco.org
Subject: RE: Fuel Enrichment; TT vs Autotech (or coolant vs DPR)


> -----Original Message-----
> From: scirocco-l-bounces@scirocco.org
> [mailto:scirocco-l-bounces@scirocco.org] On Behalf Of Rick Kellner
> Sent: Saturday, October 23, 2004 10:01 AM
> To: scirocco-l@scirocco.org
> Subject: Fuel Enrichment; TT vs Autotech (or coolant vs DPR)
>
> Does anyone have an opinion or experience as to the best approach for
fuel
> enrichment for the CIS-E?
> There are two approaches that I know of; first the TT version which
> enriches
> mixture via coolant temp sensor circuit.  The second version is the
> Autotech
> which enriches mixture via DPR current.
> Thanks, Rick.
>
>
>
> The TT fuel enrichment is simple and it works great, you can really
feel
> it
> from 4000 and up. The best part is that if this simple 1100 ohm/DPDT
relay
> circuit ever fails, it has no affect on how the car runs. It's as
though
> it
> wasn't there...
>
> Peter
>
Yeah, we've got a TT one in the headache, and have track tested it, the
car is a bit faster in the quarter with it in than without it. I know
some
people say they have trouble with them, the splice into the harness on
ours fell apart, so it got rewired, perhaps that's the trouble they
refer
to, but who knows. It's a small community, one vocal member can make or
break a product's reputation, and often you just have to try stuff to
see
what it does for you I'd say. (so long as it isn't an expensive
experiment)

Cathy
1987 2L 16V Scirocco - the Silver Headache
1979 1.8L 10:1 8V - Klaus- sounds like 0.33 of a Chevelle
"The light at the end of the tunnel is probably an oncoming train"

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