Welcome to RennTech.org Community, Guest
There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.
Here are some of the features available - once you register at RennTech.org
- View Classified Ads
- DIY Tutorials
- Porsche TSB Listings (limited)
- VIN Decoder
- Special Offers
-
OBD II P-Codes - Paint Codes
- Registry
- Videos System
- View Reviews
- and get rid of this welcome message
It takes just a few minutes to register, and it's FREE
Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)
- No ads - advertisements are removed
- Access the Contributors Only Forum
- Contributing Members Only Downloads
- Send attachments with PMs
- All image/file storage limits are substantially increased for all Contributing Members
- Option Codes Lookup
- VIN Option Lookups (limited)
1001miker
-
Posts
2 -
Joined
-
Last visited
Content Type
Profiles
Events
Forums
External Paint Colors
Downloads
Tutorials
Collections
Store
Posts posted by 1001miker
-
-
Hi all,
I had a similar problem with the top on my '97 993 cab. I found that diagnosing the problem (it was intermittent) was almost impossible because of the complexity and location of all the various sensors and controls.
I wound up throwing away most of the original wiring and the control box. I built my own control box out of a series of relays (purchased on eBay for less than $20) and installed my own wiring. It took a while to figure out all of the correct control sequences and relay polarities, but once done, it has worked flawlessly for approx 2 years now. I live in southern California and use the top up and down all the time. I believe it took 12 standard 30 amp relays to build, plus the wiring. The hardest part was routing the wiring in an inconspicuous manner, and mounting the relays under the passenger seat where space is very limited (in my case, because I also have a large after market amplifier mounted there).
I also had to design a time delay into one of the relays (relatively simple for anyone that would attempt a job like this).
I bypassed the safety on the handbrake lever (I can actually lower or raise the top while moving [SLOWLY!!!]) and the little dash light that tells you whether you have completely raised or lowered the top (not really necessary if you have set the top up and top down limit switches properly).
In actuality, the top mechanism is fairly simple. It contains only one (or sometimes two) raising and lowering motors, two limit switches in the rear (to set fully open and fully closed positions), two latch motors ( in the front rail of the top) with built in limit switches to prevent motor overrun, and two limit switches, again in the front rail of the top to tell the latch motors when they can operate. The time delay relay is necessary to bypass the internal limit switches of the latch motors to get them to start in the opposite direction after they have been used to either lock or unlock the front rail of the top.
If anyone is interested, I can provide a schematic of what I did.
I can assume no responsibility for any one else's mistakes in trying to use this. It works very well for me.
Sincerely
1001miker :drive: :eek: :cheers: :renntech:
Rennkit BTR-3 Install question
in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)
Posted
Hi Y"all
Just installed the Rennkit BTR-3 module to mate with my factory Becker CDR23. I have not yet had the opportunity to visit the Porsche dealer to update the the system with their PIWIS.
Just wondering what to expect?
Any and all comments appreciated!
Miker