Re: $1.50 Modified Retard Capsule - Saabnet.com Bulletin Board
Subsequent to the prior posts, I bought a 2-pack of small Raindrip R612C 1/4" Barbed Valves for $2.99 at the local hardware store. These are commonly used for lawn and garden irrigation systems. I installed one in the supply line from the intake manifold just upstream of the dizzy retard capsule. A series of highway and stop/go test drives resulted in a 3/4 closed setting being optimal on my '93 c900 turbo. Suspecting this was too much restriction, I tested the valve at 10-12psi using an air compressor and glass of water. Surprisingly, there was still significant flow but dramatically less than would be allowed without the valve. Given the small volume of the capsule, the reduced flow will ultimately fully actuate it but over a longer period of time. YMMV but it is working well for me and my c900 is a joy to drive accelerating smoothly in 3rd, 4th & 5th from non-boost to boost and no noticable issues with idle or otherwise. I don't have a modified spring capsule or a -10 dizzy to compare but for $1.50, I'm stoked on this simple improvement. The valve is small enough and actually looks like it belongs there. I'm adding them to the '90 SPG, '92 Turbo Vert and '91 MCY SE as soon as possible.
Thanks to Craig (thetallguy) for piquing my curiosity on this subject!
posted by 108.243.204...
Posts in this Thread:
Post a Followup
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
This is a moderated bulletin board - Posting is a privilege, not a right.
Unsolicited commercial postings are not allowed (no Spam). Please, no For Sale or Wanted postings, SERIOUSLY.
Classifieds are to be listed in The Saab Network Classifieds pages.
This is a problem solving forum for over 250,000 Saab owners, so expect to see
problems discussed here even though our cars are generally very reliable. This is not an anything goes
type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the
Saabnet.com Mission and Purpose Page. Please remember that you are
not anonymous. Site Contact | Site Donations | Other Sites by SP -
Your address is: 126.96.36.199 - Using CCBot/2.0 (http://commoncrawl.org/faq/) - Logged.
Site Members do not see red text instructions, skyscraper, nor box ads.
Click here to see all
the Site Membership Benefits!