|
700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
Information |
|
The 940 exhaust system is flawed.Views : 859 Replies : 6Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Sep 17th, 2021, 08:58 | #1 |
Senior Member
Last Online: Today 15:58
Join Date: Dec 2013
Location: Wiltshire
|
The 940 exhaust system is flawed.
I am very ready to be told I am wrong. I am basing my experience and findings on a sample size of two cars. That said, I’d love to hear from someone who knows about this.
I have had two 940’s. One turbo, one NA, both 2.3l, both estate. The turbo one, I wound the boost up on with a Heath Robinson boost controller. Regardless of how tight I wound the spring, I could only ever see 7.5psi until I cut off the exhaust before the cat. This magically ‘allowed’ 15psi. A much slower animal is the NA one I drive (and love) now. I know it was never a performance car, however, I was driving on the motorway the other day and a lambda blanking plug blew out (pre cat). The car became intolerably noisy and is now fixed. For that brief period, the car seemed far more willing, free revving and peppy. Car is 209k mi but very well serviced, totally standard. My main question is this: Is the exhaust system of a 940 restrictive? Sub questions: If it is, why is it? Is it worth addressing? Is it likely to be a blocked or buggered cat? Have you experience with this? Aside from this small curiosity, I am really proud to be an old Volvo owner. It is utilitarian, people love it and it is a nice counterpoint to modern vehicles that don’t do much for me. |
The Following 2 Users Say Thank You to Foeux For This Useful Post: |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|