 Considering Weltmeister oil press boost kit, Low pressure at Idle, when hot |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| RohJay |
 Feb 3 2016, 08:20 AM
Post
#1
|
|
Member  Group: Members Posts: 189 Joined: 24-April 07 From: Colombo, SRI LANKA Member No.: 7,689  |
What should Oil Pressure be at Idle when Hot for a 1.8 L-Jet?
Mine idles at about 0.75 Bar ( 10.8 PSI) after driving in traffic. Which I assume is too low , as the Green light comes on. At cold start I see 1.5 Bar (21 PSI). I am using a VDO 5 Bar gauge ( from late 80's VW Golf Cabrio) and matching sender. Sender is fitted to stock Oil Press Light switch location, via a braided SS hose. I have a recent oil change ( 40W ) and idle is about 1000 rpm. I am contemplating fitting the Weltmeister Oil Pressure Boost Piston kit. Anybody have experience with this product? Thanks |
   |
 
|
  |
Replies(1 - 3)
| cary |
Feb 3 2016, 08:26 AM
Post
#2
|
|
Advanced Member Group: Members Posts: 3,900 Joined: 26-January 04 From: Sherwood Oregon Member No.: 1,608 Region Association: Pacific Northwest 
|
Cold Start ............. 20 PSI ?
What is the ambient temperature ? Another alternative. http://www.tangerineracing.com/oilpressurerelief.htm Either way I'd talk to Chris. My .02c. |
|
|
|
| RohJay |
Feb 3 2016, 08:33 AM
Post
#3
|
|
Member Group: Members Posts: 189 Joined: 24-April 07 From: Colombo, SRI LANKA Member No.: 7,689 |
QUOTE(cary @ Feb 3 2016, 07:56 PM)  Cold Start ............. 20 PSI ? What is the ambient temperature ? Another alternative. http://www.tangerineracing.com/oilpressurerelief.htm Either way I'd talk to Chris. My .02c. Thanks for the info. I used "cold start" incorrectly. I meant once the engine had cooled down. Ambient temp about 34 C ( approx 93 F ) |
|
|
|
| McMark |
Feb 3 2016, 08:40 AM
Post
#4
|
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The stock pressure switch opens between 2-6psi. The aftermarket ones open at 12psi. So technically, you're above the stock recommendation. The factory manual recommends a 'wear limit' of 28psi @ 2500 rpm with the oil at operating temp.
The oil you use (not just weight, but brand as well) can have a significant effect on the pressure reading. All that being said, I think Chris' upgrade piston is a great investment. |
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 26th December 2024 - 12:17 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.