Subject	Ahh gotcha....from polar's website...
Posted by	KeninAZ on August 11, 2025 at 1:45 PM
	This message has been viewed 157 times.
In Reply To	the shaft for the TPS is too small on some of the RobZ units posted by vorpalZed on August 05, 2025 at 05:38 PM
Message	"Use of high quality, corrosion resistant materials like anodized 6061 aluminum alloy for the housing, 2024-T3 throttle plates and stainless steel shafts as well as all hardware." "Use of high pressure shaft seals that are suitable for high boost, as well as manifold vacuum. These seals were recommended to me and are used in other aftermarket throttle bodies on turbocharged vehicles. During testing, these held 35psi and 28inHg (limited by my gauge setup)." - So it sounds much better than previous attempts after some googling the problems people have had with the Z1 and RobZ.
Follow Ups	Polar Eng. 62mm TB’s - Mike@ZSpeed 16:27:11 08/03/25 better question: does anyone have Polar Engineering products (n/m) - vorpalZed 22:34:15 08/03/25 ...yea, been hearing that he's flaking out. Tread carefully - Woodnutz (PA) 11:53:48 08/04/25 Ash 2.0 in the making (n/m) - Zeus 12:14:10 08/04/25 Re: Polar Eng. 62mm TB’s - RHD NOVA 13:08:24 08/04/25 2nd. Quality is great, but he is a 1 man show. (n/m) - ctheobal 20:58:19 08/04/25 This is all positive - Mike@ZSpeed 21:47:24 08/04/25 Re: This is all positive - KeninAZ 14:44:03 08/05/25 the shaft for the TPS is too small on some of the RobZ units - vorpalZed 17:38:41 08/05/25 <~~ 2 new RobZ 62mm TB’s in box. Message me - Mike@ZSpeed 10:18:35 08/06/25 Can also create a simple shim for those units affected. (n/m) - Ghoztt (MD) 13:14:15 08/06/25 Ahh gotcha....from polar's website... - KeninAZ 13:45:45 08/11/25 I replaced the RobZ with Polar - komplexZTT 09:12:09 08/06/25 I've got some for sale :) (n/m) - Kick'n 18:20:41 08/06/25 I have RobZ TBs brand new in the box if anyone wants it. (n/m) - ZHOUND 13:50:23 08/11/25
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