red top battery

[jerseyvixen]

Hi i have a problem starting a my 1760 xflow with 11,6 to one comperssion .
have a reduction stater and using red top 20 battery but it is very slow when being turned over any ideas where to start.
LG

[rev-erend]

Try a jump start from another car .. that way you will know if the battery is man enough for the job or not.

[stevieturbo]

And ensure any wiring to the starter motor is adequate, as well as earthing.

[Steve_D]

Does it actually start and run?

Just thinking it could be something else rather than electrics or starter.

Steve

[Mr2Mike]

Check ignition timing, you need minimal static advance with that much compression.

[rev-erend]

If I was running that on my Emerald system - I would have cranking timing at 2 or even 0 degrees and as soon as it started say 800 rpm as 8 degrees .. that lets the engine start much easier with a high CR.

[jerseyvixen]

many thanks
fault found to be faulty IGN wire loosing volts to coil run new wire
time for new loom i think

[Mr2Mike]

jerseyvixen said:

many thanks
fault found to be faulty IGN wire loosing volts to coil run new wire
time for new loom i think

Glad you got it sorted, but I don't understand how a voltage drop to the ignition coil would cause the starter to run slowly?

[rev-erend]

It won't.

But having too much advance at start-up will .. with that CR.