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Discussion Starter · #1 ·
Hi guys,

We have a great promotional offer on our 'GTT Lightweight crank pulley'
Normal price £149 +vat
Promotion price £109 +vat

The stock item weighs in at around 7 pounds .The GTT item weighs just one pound! The benefits are similar to those experienced with lighter flywheels: i.e. better throttle response and free revving. However both unit cost and fitting costs/time are considerably less than those associated with lightweight flywheels.

Our design features 6 spokes (to achieve the required strength),a separate steel sleeve to achieve the correct interference fit onto the crankshaft nose, and a bolt on pulley wheel. As we've said before, an interference fit between an aluminium pulley and a steel shaft is poor engineering practice. This is due to the different expansion rates and also risk of 'picking up', a process where the alloy welds itself to the steel shaft when you remove it .This causes a lot of damage to the alloy part and makes a mess on the steel shaft too. Our pulley is HARD anodised to eliminate corrosion and minimize pulley wear. No other pulley gives you these important design features.

The larger diameter version gives the equivalent 'gearing change' to the supercharger of 'minus 3%' .This means they are best suited to Std, JCW or-15%cars .The latter two then having equivalent to ' minus 18% pulley' , without the risk of pulley slip normally risk associated with very small S/C pulleys. And of course you get the quick spin up too!

Sizes 0% +1% +3%
To order our 'GTT Lightweight crank pulley' call us on 01258 455545 and quote the pomotional offer:smile:

Best Regards GT Tuning:smile:


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