Description
Twin Spark conversion, square engine
A twin plug conversion is less of a tuning measure, but rather an optimisation. The long spark travel in the combustion chamber requires high initial ignition values, which in turn carries a risk of self-ignition (ringing). By igniting the mixture from two sides, the chances of pre-ignition can be reduced considerably. Combustion becomes more even and effective, starting behaviour and torque are enhanced. Twin plugs generally make sense for large bores and high piston domes.
We use 10 mm spark plugs and a special stay bolt. This way, the seat of the rear stay bolt does not require reducing so there is no danger of the cylinder head warping. The square heads also need the oil supply to be relocated to the front.The conversion kit contains the special stay bolts, new oil hose, oil screws and oil adapter and 4 spark plugs.
Price is for one pair of cylinder heads.
A twin plug conversion is less of a tuning measure, but rather an optimisation. The long spark travel in the combustion chamber requires high initial ignition values, which in turn carries a risk of self-ignition (ringing). By igniting the mixture from two sides, the chances of pre-ignition can be reduced considerably. Combustion becomes more even and effective, starting behaviour and torque are enhanced. Twin plugs generally make sense for large bores and high piston domes.
We use 10 mm spark plugs and a special stay bolt. This way, the seat of the rear stay bolt does not require reducing so there is no danger of the cylinder head warping. The square heads also need the oil supply to be relocated to the front.The conversion kit contains the special stay bolts, new oil hose, oil screws and oil adapter and 4 spark plugs.
Price is for one pair of cylinder heads.
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the ignition advance characteristic has to be changed, by modifying the distributor or the electronics. You also need twin-spark ignition coils suitable for your ignition system. Please contact us for further information. |
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For this service, please send us: Both cylinder heads. |
