CG Lock installed

I installed my 2 CG locks tonight, one on each belt and sure enough these babies really hold you into your seat. True your upper body can still move around some, but short of a full harness these really help hold your butt in the seat, planning to track test them this weekend!

K-Man S, Can you tell us more? How do they work? ==RedEye

They use a roller and clamp mechanism to allow you to tighten the belt portion across your lap to hold you into the seat while the upper portion of the belt can still move on the standard tensioners. Think of it like having 2 belts, one solid one across your lap, and then your regular retractable one across your chest. There was no time to get a harness bar and get it installed before this weekend so I went with CG Locks. I'll let everyone know how they do, I suspect certainly better than just stock seat belts on the track.

Thanks! ==RedEye

Thats a pretty clever idea, I have never seen them before.

I've used them on my STi and Evo track cars and now have 2 on my Cayman S. Short of a 5 or 6 point harness, you can't do any better. Highly Recommended!/fckeditor/editor/images/smiley/MWPX/shades_smile.gif

I bought a set too, but didn't put them in yet because they it looked I would have to do some drilling for the little screws into the backside of the the belt latch as mine is slightly longer and rounded than the CG-Lock accounts for so that it would fit snugly in the edge of the slit for the belt. K-Man S did you have to drill a couple small holes for yours?

??? You shouldn't have to drill anything. The Cayman S has the flattest and easiest seat belts to mount to that I've tried so far. Just bend it a little or put something grippy in between. It will work fine.

No drilling required, fit snug, lasted fine all weekend, even had one for a passenger and worked fine for them too.

I must have some slightly different belt latches then, as I tried for a long time to get it to fit. Mine are rounded on the backside and slightly longer making the CG-Lock impossible to fit securely and would slide off no matter how tight I screwed it down. The little curled edge lip that fits on the inside edge of the belt slit is just a little short. I'll see about fitting a shorter in the back latches. I followed the instructions and watched the installation video too.

K-Man, This sounds like a great product, but I do have a safety concern. What about the seat belt pre-tensioner that the CS has? I'm talking about the one that tightens up the belt just before the air bags deploy. If the pre-tensioner is designed to work with a full length belt, whichbydesign has some stretch, and this device effectively shortens the length of the belt , I wonder what the impact would be. Does CG-lock have any info on this? Thanks, Dave

I have used the CG lock for two years on 914, 951, Boxsterand now Cayman for autocross, track and street. Next best thing to a real harness IMO. I really had to crank it down to get a secure grip (no drilling) and bent the edge slightly so thatit contacts the plastic at the belt end better. Once that is done it stays put.

I can't vouch for their safety issues, but they have info on their website about it. Since there have to be a variance in how much belt is deployed for different sized drivers, I don't think this would fall outside of any engineering margins at Porsche, but that's just a guess...

I guess as long as the tensioner is pulling on the end of the belt that goes over your shoulder, the CG wouldn't make a difference. If it was pulling on the end that goes over your lap, that might be bad. I don't see any specific mention on the site, so I dropped them an email to see if they can clarify. Dave

is there a group buy discount for this?

I don't know that they are wanting to run a group buy at this time but if you ask them and they are willing let me know how I can help.

Wow! I bought 2 CG Locks before I saw them on this web site. I noticed them at automotion.com, then later noticed they were a sponsor. These totally rock! Easy to install, secure and really hold well. I stongly recommend them. Greg

How can I see a picture of these locks?

First topic updated to include pic again.

Cool, Just ordered mine.

I found this Coupon for $2 TMM625

They work great. I had them on my STi.

Works, but Hurts My CG-Lock dug into my side. The little nob that allows you to release the tension mechanism has sharp edges and rubbed my side bloody. Works great, but I had that problem. I've since bought harnesses.

You know I wrestled with this idea of using a CG lock or finding another way to lock my butt and upper torso in the seat as I had my first autox to go to this past weekend. Anyway, I thought it would be nice to have the ratcheting mechanism that the passenger belts have. The way to activate the ratcheting mechanism is to pull the belt out all of the way and it will ratchet back. You can get the belt tightly cinched this way. The racheting mechanism is used for locking in baby seats. I brought this up on another board asking if the passenger belt would fit on the drivers side and if anyone has tried it. Well, someone brought up the point of just buying a UK passenger belt which is the US drivers belt and you can accomplish the same thing of having the racheting mechanism. Being that I couldn't get this accomplished in 3 days before the autox, I ended up just sliding the seat back a notch, yank on the seat belt to lock and than move the seat forward to cinch up the belt tight. Worked out well for the autox. The ratcheting would have offered an easier solution but this method worked well enough. Anyway thats my experience. Let me know if anyone tries the passenger ratcheting seat belt thing. I still might try to do it.

I've used that technique and it works pretty well, but is just a paint to get everything in the right place. I've since bought a Shroth harness. I'd be interested in that data point as well.

objectuser - How did you get the schroth harness to work? Did you change your seat? The schroth harness is not approved on the Porsche seats because the belts can slide over your shoulders. I used the 4 pt schroths on my M3 and they worked well. Did you change your seats, get a harness bar/mount?

I bought a set of CG locks about a year ago and tried to install them on my Volvo S60R. They wouldn't fit because the part of the belt it attaches to has a 45 degree bend in it so I just put them away. Recently I dug them out and tried to install them on my CS seat belts but it seems as I tighten them down, they just push off the seat belt clip. I got so frustrated I just put them away again. I see others are having the same difficulty I did. Could there be more than one model of CG lock?

I have installed my CG Locks in all three of my performance cars ('06 Boxster S, C32 AMG Mercedes and modded '03 WRX) and used them successfully on the track and in autocross. I transfer them from car to car and have no problem installing them in a few minutes. I believe the instructions mention cars with issues like your Volvo but I can't recall any solution. However, you shouldn't have any problems on the CS. First, make sure you loosen the screws enough to get the clamp deep onto the belt clip before you start tightening them up. I believe the CG Lock comes with two different length screws; you may need to use the longer screws to have the clamp at the proper angle to prevent it walking off of your clip as you tighten the screws up. In addition, you need to go back and forth between screws as you tighten them up incrementally and keep pushing the lock into the seat belt clip as you get them tight. This should work. Once set, buckle up tight to make sure the lock stays on and you're good to go.

I ordered the CG Lock last Friday, and it arrived yesterday (Monday). I installed it last night w/o any real trouble. Found the long screws too long, and ended with the short screws. As Carl has just said, you need to tighten them alternately, and after you think they are tight, go back in a minute or so and you will find they can be further tightened. I suspect the plastic of the belt tongue is yielding slightly. I probably repeated the tightening four or five times, and will check it again today. Also keep checking that the clamps are not sliding off the plastic tongue. The little holes in the tongue offer a good reference mark. CG Lock warns you to recheck after some passage of time. Their caution to not overtighten is about as useful as mother's order to 'be careful' - what does overtighten mean? If the head of the screw twists off, you'll know. After an AutoX this weekend, I'll know if the device really makes for better or more comfortable driving. Marty

Sorry, should clarify: this is in an M3.