Category Archives: Tech Articles

Mapping MegaJolt: RPM Only

In this post I’ll show you how to generate an ignition map MegaJolt in a RPM only mode. This will most closely resemble the behavior of a weight and spring distributor. If you were to spin a distributor through an … Continue reading

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Modes of MegaJolt

MegaJolt allows many modes of operation. I’ve listed these below, in order of basic to complex. In general, the more resolution (bins) you have, the better. More bins will allow you to tune ignition timing more closely to the ideal … Continue reading

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Power Draw from Engine Accessories

Here’s a little write up a did a while back regarding the amount of power used by accessory items. It helps to explain the apparent power saving of using electric accessories  and/or underdrive pulleys. Alternator HP Draw There are a … Continue reading

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What is MegaJolt?

MegaJolt.   Mega.  Jolt.  –That’s a funny name. Where does a name like MegaJolt come from? What is MegaJolt? What can MegaJolt do for me? Well, sit down, have a read, and I’ll tell you. First, a bit of history In the … Continue reading

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Fiat SOHC Cam Pulley Clearancing

As rear-guard cores for adjustable cam pulleys have become harder and harder to source, we developed the option of modifying front-guard pulleys into rear-guard. Unfortunately though, there is a slight clearance issue with the pulley and the cam box. Below … Continue reading

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Installation Guides

Did you know that most of our parts have installation guides? These guides provide all the information you need to install our parts on your car! They are included with parts as we ship them but you can also download … Continue reading

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Fiat/Lancia Crank Pulley Offsets

We’ve taken the time to create some cut-out guides for selecting the proper crank pulley offset. Take a look at the photo guide below for details.     Offset templates: Rear Offset Template Rear Offset Template A4 Middle Offset Template … Continue reading

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Fiat Cam Pulley Cores

A quick note about Fiat camshaft pulley cores, the picture below shows the pulley cores we can turn into adjustable pulleys: If you have guarded cores, be careful to not bend the guards, we can usually straighten them out but … Continue reading

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Fiat DOHC Engine Dimensions

This is part of an unfinished project I started 6 years ago to catalog all the Fiat parts I could get my hands on. I finally managed to compile the basic engine dimensions for the DOHC engines (1592, 1608, 1756, … Continue reading

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EDIS Module Connector Disassembly

Just a quick how-to on taking apart the EDIS ignition module connectors. This is a must if you want a seamless wiring harness or if your pins are failing. This guide applies to all EDIS4, EDIS6, and EDIS8 connectors.

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