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Re: Jacobs Ignition?
Posted by p-loc (more from p-loc) on Fri, 17 Nov 2000 01:57:09
In Reply to: Jacobs Ignition?, Chuck, Thu, 16 Nov 2000 10:22:38
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I have been using the Jacobs omni-magnum on my 88 9Kt for a few years now. No problems with the system.It is a tight fit- I relocated my engine fuse box. I do remember feeling a distinct improvement in throttle response after installation. I think their horsepower claims are a bit inflated,however. Milage did improve a bit, I believe.One key to their numbers is that you increase the spark gap.They give you a table that calculates the proper gap depending on how many of their components you use. According to the chart, the plug gap should be around .040", up from .028.BUT- they recommend that turbo engines not use this table! You are supposed to increase the gap in .005" increments until performance decreases!? With stock boost, you could probably use a .040" gap.The big problem is if you run increased boost, because the higher boost requires a smaller gap. I've been using a gap of .032" running up to 18 psi of boost.( the last time I spoke with a sales rep, they told me to use the stock gap setting) That's borderline for gap on my engine. I am disapointed that I can't use a bigger gap. The Pro-street model offers a re-strike feature that might be beneficial in this scenario. Which brings up another point- Jacobs salesman are SHADY! I was led to believe thet I was getting the Pro-street system for the price I paid.You will get a different story from each sales guy.If you do buy from Jacobs-HAGGLE- their prices are NOT set in stone. The Jacob wires are no better than stock Saab, so don't waste your money there. AN interesting note- almost all of the import racer guys(honda,mitsu,etc.) use MSD ignitions.
Posts in this Thread:
- Jacobs Ignition?, Chuck, Thu, 16 Nov 2000 10:22:38
- Re: Jacobs Ignition?, p-loc, Fri, 17 Nov 2000 01:57:09 <-- Viewing This Message
- Coworker swears by them in his V*lvo (and Mazda), Aaron Gilbert, Thu, 16 Nov 2000 13:26:09
- Re: Jacobs Ignition?, Ken Washington, Thu, 16 Nov 2000 11:56:18
- Re: Jacobs Ignition?, GM, Thu, 16 Nov 2000 11:27:46
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