Many thanks for your quick response.
I think about CPI cylinders too.
In germany we have no dunes or a drag race scene and I use the Banshee on tarmac rod legal.
We have in germany no speed limit 😀 and the engine runs for a long time in high rpm'.
Some of my buddy's have bad experiences with CPI cylinders.
I think the problem is, that the cooling capacity is to small for this kind of use.
It is not a question of money for me - i searched for the best parts on the market to built a reliable +4mm
engine with 68mm bore wth a wide torque on power band.
I spent a lot of money in my project, with a Lone Star Racing Frame, 40mm Smartcarbs, Beringer billet racing brakes
and plan to order a Mattoon Maschine billet case.
In a another threat I reed, that all the billet cylinders are made and developed from DASA and will be sell in the past
under different labels like trex, twister, fmf.
DASA has stopped the production and Tony Doukas from TDR by all the rest stuff.
Is that a right information?
TDM offers in his web shop these cylinders under trex label.