ignition module

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Aug 8, 2003 | 03:04 PM

troysmith

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ignition module

Looking for info. on ford ignition modules.

I was told that the stock ford has a built in rev limiter at around 5000 RPM. If you purcase the wells ignition module it has a built in rev limiter of 5600 RPM. I was also told that some ford modules in the early days have a plug on the back you can plug in differnt chips to adjust the rev limiter.

They guy that told me all this was a motor head that worked in a autowreckers yard. Is there any truth to what he is saying?

My 460 in my jet boat would like a few more RPM s. This might be a cheap improvement?

Aug 9, 2003 | 01:13 AM

Hired Gun

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From: Oregon Coast

ignition module

I don't believe a rev limiter is a component of a stock dura spark ignition. The weak valve springs do a pretty good job of keeping the revs under 5000 rpm though.

Aug 9, 2003 | 06:40 AM

bigsnag

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From: Pryor

ignition module

Is this the Troy Smith from Kansas??

Anyway, I've never heard of or seen such on Ford modules. I've looked at mine very closely and it has no such thing on it. It also does not limit me. I've turned about 5600 with it. No problems.

JJ

Aug 9, 2003 | 10:56 AM

troysmith

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ignition module

No I'm not from Kansas. I'm Calgary AB Canada.

Found the info on ford ignition modules I was looking for.

I was told these units are available from Ford Performance Products (SVO, or it's successor) and are plug compatable with Duraspark Modules. They come with plug-in rev limiter resistors for 6, 7, and 8,000 RPM.

The part number on the unit is M-12199-C301.

Aug 10, 2003 | 06:15 PM

c_rossman

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From: Cloud USA

ignition module

What are you building the motor for? With a 460 I would keep the rpms below 4500. Anything more than that you are just making alot of noise and very little power.

Aug 10, 2003 | 07:11 PM

bigsnag

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From: Pryor

ignition module

For stock 460's the idea of making a lot of noise and very little power over 4500 RPM's is very true. For modified ones that is out the door. My peak hp is around 5000. Lot's of guys are making their peak hp around 6000. A few guys, with deep pockets, are making power into 7000 and 8000 range.

JJ

Aug 12, 2003 | 02:57 AM

troysmith

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ignition module

The motor is for a jet boat.
The dyno results gave me peak horse power at about 6000 rpm at 400HP and 580 FTLB torqe, but in the boat I can only get about 5200rpm. When you hit a wave and come out of the water it revs to about 7000 to 7500 for an instant. This is why I was looking for a rev limiter and slightly better ignition.
Also in a boat when the engine quits you have to swim for help so all systems should have a backup. If i switghed to a MSD ignition system I should by 2 so as to have 1 for backup. (too much money!) But a spare ford ignition module is cheap insurance.