Originally posted by Agades
and the K45 is a whole different turbo meant to take the place of the HX 40 for those of us who are afraid of huffing one
I'll try and address this, from our own independent tests.
The K. 45 is intended to be used in the same applications that an HX40 has historical been used in. ie: 500 HP and down with no drugs. Shaft size is approximately the same, however quality is higher than a typical 40 shaft, and bearing outer surface is bigger. Kurt is supposed to get me some pictures today that I will post here.
To expand on my previous message, the K. 45 is available in a standard version and a KwikSpool version with a tighter housing. As far as I know, there are no KwikSpool K. 45's out in the market right now, just a few standards that are undergoing testing. The target for the standard K. 45 is faster spoolup than an HX40 of any breed, which means that it will still likely be slower than an HY35/9. You will be able to save some pennies on a 400 HP or so class truck (approx. We don't have any firm numbers yet), and skip the waste.
The KSK. 45 (KwikSpool) is the turbo that I'm most excited about. Its using a smaller turbine wheel and turbine housing, similar in size to the KSB1B (KwikSpool B1B). Our testing at Wildcat (only one truck thus far) with the KSB1B has been nothing short of phenomenal, with spool-up equal to or better than an HY35/9, and EGT reductions comparable to a KSB1. With a similar sized compressor wheel, lighter rotating mass, and similar exhaust side, there is no reason why KSK. 45 won't perform every bit as well.
Rod