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Camshafts: Mods and Upgrades |
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 The Franco Industries Automatic Cam Sprocket
gets installed on the front of the engine on the 924. This is definetly a good way to increase power and what is promised is delivered. The ignition timing MUST get modified to DIS. An Electromotive Distributorless ignition system will correct the ignition timing as it would otherwise be thrown off by the Franco gear (as the Franco gear would affect cam timing hense ignition timing).
Franco Documentation: Page 1 | 2 | 3 | 4 | 5 (coming soon) Franco Gear Effect on Ignition Timing | | stock ignition & curve | Idle ~1000 RPM | 10~ | 1500 RPM | 18~ | 2000 RPM | 23~ | 2500 RPM | 25~ | 3000 RPM | 26~ | 3500 RPM | 28~ | 4000 RPM | 22~ | 4500 RPM | 19~ | 5000 RPM | continues to drop | 5500 RPM | continues to drop | Franco Automatic Cam Timing & The Stock 924 Ignition: To adjust for the ignition curve with a recurved ignition distributor would mean you will not get the full potential of power out of your engine compared with a distributorless ignition system like the one from Electromotive. You can see in the chart the incredible upper end ignition difference just in timing alone. The amount it cost me to do a complete DIS system: $750
The breakdown for that was $600 for the DIS system, $100 for the wheel that measures the timing to be customized for the 924, and $50 in misc items. All literature to do everything was included with the electromotive DIS. Any machine shop will be able to customize the wheel. Was it worth it and would it be worth that on a stock engine? YES! There is __NO__ better upgrade for the money. There is some work involved, but will be definetly worth it once you start that engine and it cranks right up without problems, and you have GOBS of power. On my engine I would est. I have gained at the VERY LEAST 10 peak hp. I have gained horsepower & torque everywhere though. This is the best upgrade. |
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Sponsored by: BMC British Automobile |
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