IPB-Autosport 996 GT3 4 Liter

[IPB-Autosport]

Pistons and cylinder sleeves (left) for the 4 liter conversion are finally in. Mahle 105.4mm pistons, steel cylinder sleeves out of the UK from a Formula 1 supplier, stronger wrist pins, and Mahle ring sets. Pistons and sleeves were developed and sold by Wrightwood Racing in Southern California.



One look at the new piston (left) and you know it’s all business.






The 4 liter sleeves are a work of art themselves. They are finned in the cooling channels to provide greater surface area for heat conduction. More power requires better cooling.




Wrist pins are heavy duty.



Piston rings from Mahle. Only the best here.



The case and cylinder housings go for machining this Thursday at How Tek in Cameron Park. The owner, Howard, was the machinist for Comptech racing.

Meanwhile, we are waiting for new clutches from Guard Transmission to rebuild the limited slip differential.