When I built my saloon people were complaining about misting of the side and rear windows , the factory suggested fitting the astramax vent in the rear of the door opening . I also fitted vents under the rear window to allow air through the parcel shelf and more vents from the sides of the boot into the inner wing . Never had a problem after that . The vents some people have fitted in the rear wings are from a Nissan bluebird from 1986 onwards.
Get Outlook for Android<https://aka.ms/AAb9ysg> ________________________________ From: [email protected] <[email protected]> on behalf of Darren Siepka <[email protected]> Sent: Monday, March 22, 2021 10:17:48 AM To: [email protected] <[email protected]> Subject: Re: [Quantum Owners] Saloon Ventilation Further to what Jim was saying about air pressure, I was told that the venting assisted in making sufficient air movement in the cabin to let the blower pull in air more easily whilst not causing a negative differential to the outside which would have encouraged leaks.. I have the grey Slat type vents in my saloon door post. The best fix for windscreen misting would be to put an electric heated screen in , which are a straight fit :-) On Mon, 22 Mar 2021, 10:05 Jim Hearne, <[email protected]<mailto:[email protected]>> wrote: My understand of the issue with the ventilation in the saloon was more misting of the rear side windows and rear screen. Hence the fitting of the vents in the B pillars (mine has those) or in the rear quarters. I don’t remember having any real issues on my saloon but it does also have the splash guards in front of the front wheel arches. As you say, the only real exit from a unmodified saloon is via the door hinge openings. Although, remember when the door is shut 99% of that area is blocked off by the other half of the hinge. I believe there have been cases of the bonded in glass popping out when doors are slammed due to the air pressure. Jim From: 'Bill Allison' via Quantum Owners Group Sent: Sunday, March 21, 2021 8:12 PM To: Quantum Owners Group Subject: Re: [Quantum Owners] Saloon Ventilation John Am I correct in thinking that, like many Q saloon owners, you are troubled with dampness in the cabin and the consequent high (in comparison with mass-produced cars) tendency for windows to steam up and such? Prompted by a drive in torrential rain last year which caused the windscreen to instantly and heavily steam up, reducing vision to near zero, I investigated and as a result modified my Q as follows, which has resulted in dramatic improvement. The mod is simple. Block off the heater air intakes in the underside of the front wings just behind the headlights (I used some nice springy closed cell polyurethane 50mm sponge cut oversize to the roughly triangular shape of the intakes). The heater now draws air only through the door hinge holes, where the air is relatively dry. The front intakes, effectively within the wheel arch, drew not only moist air but water droplets when driving in even quite light rain. Other owners have fitted wing arch panels to shield the intakes from heavy tyre spray but I believe that to be ineffective in the more extreme wet conditions. You will be wondering whether the area of the hinge openings is sufficient, as was I, but although I was prepared to drill a couple of additional 30mm dia holes each side that has not been necessary. The area of the hinge holes is approximately equal to the area of the gap around the lower (below waistline) portion of the door and at 80cm2 each side appears to be sufficient. B pillar vents - mine has them but I believe the only real benefit is on the nearside, to prevent a build-up of petrol fume in the event of an imperfect seal in any of the filler pipe joins. If you would like a chat to discuss further, my contact details are below. HTH Best regards Bill Bill Allison Borders Group of Advanced Motorists National Observer (Cars) www.facebook.com/BordersAdvancedMotorists<http://www.facebook.com/BordersAdvancedMotorists> [https://imagizer.imageshack.us/v2/300x200q90/538/CE7Yc0.jpg] The contents of this message, and any attachments, may include information that is private and confidential and should not be read by persons other than the intended addressee(s). IAM RoadSmart nor the sender accepts any responsibility for viruses and it is your responsibility to check the email and any attachments. If you have received this email in error, please inform the sender and delete the message from your computer. IAM RoadSmart is a trading name. IAM RoadSmart is a trademark. Charity number: 249002 (England and Wales) SC041201 (Scotland). Registered Address: 1 Albany Place, Hyde Way, Welwyn Garden City AL7 3BT. On Friday, 19 March 2021, 18:26:38 GMT, [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> wrote: Just wondering what other saloon owners recommend to improve cabin ventilation? My saloon (late 1991 factory build) has matrix of holes drilled in each door pillar above striker. This is referenced in an old QSC tech bulletin (dated aug 1993). It also mentions that QSC are now using Astramax Van vents in same position and Graham Lindley used vents in rear wing before rear lights. So which, if any of these work? Inside the door pillar on mine the hole matrix seems to have been covered with some semi airtight mesh (or what's left of it) - was this standard or someone trying to block off the holes becuase it does not work? The same QSC bulletin also states that with any of these methods the A pillar tube alongside the windscreen must be blocked off with expanding builders foam to form a dam to stop water getting in? - I guess there was a concern that low pressure would cause water to be sucked in but not clear exactly where that was likely to occur. I have not yet checked my A pillars but maybe other owners may know more. John[20210319_144841.jpg][20210319_144935.jpg] -- -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected]<mailto:[email protected]> To unsubscribe from this group, send email to [email protected]<mailto:[email protected]> For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. 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