Drivetrain Twin Screw
2nd Gear
Joined: Apr 2006
Posts: 106
Likes: 0
From: Florida
[The twinscrew is nice] but because it compresses at all RPMs besides just moving air (that's the source of it's high TEs), it takes a MORE WORK to twist it when at light load or low RPM. While the TEs are very good, I'm thinking the TVS will put a stake in the twinscrew heart. Here's why: THe twinscrew has very tight (much tighter than Eaton designs) so the manufacturing costs are higher. Couple that with the high licensing charges to make them to the holder of the IP, and you get a very high cost unit.
All told, the TVS design has much improved TEs, lower cost manufacturing, and the only thing that sucks is right now, it's only really done via OEMs who design the integrated cases, and I haven't seen the "bolt on aftermarket" versions like there are for the non-TVS Gen iV/V Eaton units. But anyway, as long as the licensing costs for the twin screw stay high, I'm thinking they've priced themselves out of the market, especially here in the states....
Matt
All told, the TVS design has much improved TEs, lower cost manufacturing, and the only thing that sucks is right now, it's only really done via OEMs who design the integrated cases, and I haven't seen the "bolt on aftermarket" versions like there are for the non-TVS Gen iV/V Eaton units. But anyway, as long as the licensing costs for the twin screw stay high, I'm thinking they've priced themselves out of the market, especially here in the states....
Matt
Sent: Tue, October 13, 2009 10:28:30 AM
Subject: FW: HTV900 release date yet
Scott:
Unfortunately Eaton Corporation has yet to release its R900 to its Aftermarket distribution partners (Harrop included) and it is anticipated the release will be at least 12 months away. There is very limited OEM development, which is key to releasing the R900 into the Aftermarket. The best option available is the HTV1320, which Harrop has been producing for well over a year. I assure you I am well aware the HTV1320 is too large for most 1.6L engines, but without any other options available its either continue to wait or consider the HTV1320 for your development.
BTW, I was employed at Eaton Corp for 29 years and assure you that when Eaton says 12 months that is a best estimate (i.e., its likely going to be longer!)
Regards…
Michael Hewitt
Business Development Manager
Harrop Performance USA
Battle Creek , MI 49015
Thread
Thread Starter
Forum
Replies
Last Post
Colt45Magnus
R56 :: Hatch Talk (2007+)
2
Oct 1, 2015 04:08 PM
Interior/Exterior Getting Through the Firewall
papawhiskey
Interior/Exterior
1
Sep 30, 2015 02:50 PM