Re: [DML] BAE Turbo Documentation
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Re: [DML] BAE Turbo Documentation

In the lower rpm ranges most of the advance is VACUUM advance, not 
mechanical advance. Installing a BAE kit should not affect vacuum advance at 
all. The modifications made to the distributor to limit mechanical advance, 
if done properly according to the BAE instructions, will only affect the 
advance curve beginning around 3500 rpm.

If you do, in fact, have too much advance at low speeds (below 3500 rpm) 
look elsewhere for the problem(s).

As soon as the throttle is opened slightly above idle, the idle switch will 
cause vacuum advance to be applied. You will see about 20 degrees of vacuum 
advance right away. That advance decreases as the throttle is opened, but as 
it decreases mechanical advance comes in. There are two stages of mechanical 
advance on the DeLorean.

Before doing anything to change the advance you may want to map the advance 
curve by using an advance timing light to take advance measurements every 
500 rpm. It could be that advance is part of your problem, but it would be 
better to know for sure before you start chasing read herrings!

-Joe Kuchan

>From: Markus Knöpfle <magrutter@xxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: Re: [DML] BAE Turbo Documentation
>Date: Tue, 04 Apr 2006 04:51:39 +0200
>Many thanks for all your response!!!
>Bruce: You're right, especially in the lower RPM the ignition is too early. 
>Guess I spend the next weekend on the turbo.
>Roy: My VIN is 01460
>*Von:* dmcnews@xxxxxxxxxxxxxxx
>*Gesendet:* 03.04.06 18:12:41
>*An:* <DMCNEWS@xxxxxxxxxxxxxxx>
>*Betreff:* Re: [DML] BAE Turbo Documentation
>When you say it's not working I'd take that to mean you're lacking power or
>not getting any boost. It's been discussed here a zillion times but the
>older turbos like the Rajay used in the BAE kits are susceptible to oil
>coking in the bearing area. Newer turbos use water cooling and even space
>age ceramic bearings but the Rajay floated the center shaft in oil routed
>though the turbo center section from the engine. If the oil was too hot at
>shut down it can turn to coke and block the oil passages preventing further

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