Surging around 2500 rpm / Ignition leads?

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doog
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Post Sat Jan 14, 2006 9:47 am

My 1984 323 (2.7L M20) has developed a surge around 2500 - 3000 rpm. Irecently replaced the primary fuel pump because it went south, so fuel pressure is quite nice, however this did not solve the surge I was getting.

I am planning to replace the leads as this symptom can be caused by them. Does anyone have recommendations on what leads to go for. I track this car so leads that resist breakdown due to heat etc would be good.
Ant
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Post Sat Jan 14, 2006 1:17 pm

TBH I'd go std leads everytime, they last a good 100K normally without issue, good enough for BMW, good enough for me

As for "performance" leads, is there such a thing, not seen any evidence to support the claims of the makers, the magnecor set I had on my S12 fell apart within weeks due to poor quality
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Brianmoooore
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Post Sat Jan 14, 2006 1:54 pm

If you hang around the LPG discussion groups on the net, you learn all about ignition leads, as LPG puts extra demands on ignition components, and a single subsequent backfire can cause expensive damage.
The OE ignition leads on my wife's LPG 325 M20 are over 200,00 miles old and are in perfect condition.
Landrovers , however, can get through a set of OE leads in about 20-30,000 miles, and anyone running one of these on LPG without using something like Magnecor is taking a risk.
If it says BMW on the box, then they ARE high performance