toplad Posted September 25, 2018 Report Share Posted September 25, 2018 This brace goes just in front of the gearbox between the bottom of the sub frames Its stiffens the back end of the car up nicely Bought 20mm of aluminium rod from ebay. Chopped it down to 24 inch, with holes 22.25 inch centre (more or less) With the fabrication it took about an hour. A cheap and worthwhile mod, when pushing on the back end can start to bob a bit, with the lower brace this is eliminated, car feels a lot tighter More info here http://986forum.com/forums/boxster-general-discussions/10817-driving-impressions-lower-stress-bar.html Link to comment Share on other sites More sharing options...
edc Posted September 25, 2018 Report Share Posted September 25, 2018 @Tony Daniel made a few of these a few years ago basically copying the Pedro's garage one. I've had one on my car since then and agree for a few pounds a worth while and barely noticeable visually mod. Link to comment Share on other sites More sharing options...
TV8 Posted September 26, 2018 Report Share Posted September 26, 2018 Is this a form of anti-roll bar? Link to comment Share on other sites More sharing options...
Simon_R Posted September 26, 2018 Report Share Posted September 26, 2018 1 hour ago, TV8 said: Is this a form of anti-roll bar? I would say no, more of a chassis strengthening brace. I fitted something not to dissimilar to the front chassis of my MX5 many years ago. Are the bolt holes already there & any pics of it installed? Link to comment Share on other sites More sharing options...
Patt Posted September 26, 2018 Report Share Posted September 26, 2018 Had the same as EDC, sadly the installed picture is on photobucket... Link to comment Share on other sites More sharing options...
edc Posted September 26, 2018 Report Share Posted September 26, 2018 These fit using existing bolt hole locations. You just need a longer bolt. Link to comment Share on other sites More sharing options...
toplad Posted September 26, 2018 Author Report Share Posted September 26, 2018 The braces goes in the existing holes and you'll require 2 x 50mm x 10mm bolts. You can use the existing nuts The whole back of the car is tighter, less rattles too. It's exactly the same as this http://pedrosgarage.com/Site_2/TechnoBrace.html Link to comment Share on other sites More sharing options...
Menoporsche Posted September 27, 2018 Report Share Posted September 27, 2018 21 hours ago, Patt said: Had the same as EDC, sadly the installed picture is on photobucket... Thought PB was working again? Link to comment Share on other sites More sharing options...
edc Posted September 27, 2018 Report Share Posted September 27, 2018 There's a couple of pics in my 550 running report of anybody is interested. Quite honestly though there's not a lot to see that's different from the photo above. Link to comment Share on other sites More sharing options...
911-32 Posted September 27, 2018 Report Share Posted September 27, 2018 On 9/25/2018 at 10:15 PM, toplad said: This brace goes just in front of the gearbox between the bottom of the sub frames Its stiffens the back end of the car up nicely Bought 20mm of aluminium rod from ebay. Chopped it down to 24 inch, with holes 22.25 inch centre (more or less) With the fabrication it took about an hour. A cheap and worthwhile mod, when pushing on the back end can start to bob a bit, with the lower brace this is eliminated, car feels a lot tighter More info here http://986forum.com/forums/boxster-general-discussions/10817-driving-impressions-lower-stress-bar.html Why have I never heard of this before? What a great idea. To be clear, you need a 20mm diameter x 24 inch bar? Thanks Link to comment Share on other sites More sharing options...
Simon_R Posted September 27, 2018 Report Share Posted September 27, 2018 Just working on sourcing a bar atm Link to comment Share on other sites More sharing options...
911-32 Posted September 27, 2018 Report Share Posted September 27, 2018 7/8" (22.2mm) or 3/4" (19mm) bar available on ebay or metals4u etc. Link to comment Share on other sites More sharing options...
toplad Posted September 27, 2018 Author Report Share Posted September 27, 2018 I can't take credit unfortunately, I pinched it from the U.S site in the link You'll need, 1. 700mm rod 2. 15mm socket and wrench 3. 50mm x 10mm bolts x 2 4. A decent file 5. 10mm drill bit and drill 6. hammer I'd go with the 19mm bar, slightly easier to wiggle in and stiff enough There is a slight difference between the 986 and 987 measurements of 3 mm hole to hole. Mine's a 987, so I followed the method below I bought a piece of rod 700mm long and measured 22.25 inch centre to centre, then took 3 mm off the centre measurement(987 models only). I then added 30mm on each side of the hole, so you have plenty of aluminum past the hole, I don't know the exact length as I used this method, but it's just over 24 inch and should not be too long as it won't fit. I chopped it down and marked 65mm from each end with a pencil and started to file the rod flat on one side, (you need a good file for this part, order one from Ebay, a Bastard file, not joking with name), Spin it over and file the other side flat , repeat this on the other end. Then I drilled a 10mm hole at my marked centres (22.25 minus the 3 mm). You have to drill very accurately and straight or it will not fit. If your hole is slightly off, you can widen it a bit, but the idea is it drops straight in without any hammering. If you have to widen one of the holes it's not a problem. The reason being , the aluminium is soft metal and the bolt is pulled into the bar a bit and locks into place when you nip it up, so it won't move when tight. My drive slopes so I don't even have to jack the car up and the nuts and bolts can be reached with a bit of a stretch If you have a 986, its exactly the same but your centres are 22.25 inch Don't try and smash the bolts in if you've not drilled it correctly, widen one of the holes, whacking it could effect you alignment Link to comment Share on other sites More sharing options...
Tony Daniel Posted September 27, 2018 Report Share Posted September 27, 2018 I used hexagonal bar for the brace Link to comment Share on other sites More sharing options...
toplad Posted September 28, 2018 Author Report Share Posted September 28, 2018 Looks good Tony, makes mine look rubbish ? Link to comment Share on other sites More sharing options...
Jubal Posted October 3, 2018 Report Share Posted October 3, 2018 I like a mod. Can I please clarify...is the notch sized to hold the bolt head captive? I can't quite tell from these photos. Link to comment Share on other sites More sharing options...
Tony Daniel Posted October 3, 2018 Report Share Posted October 3, 2018 1 hour ago, Jubal said: I like a mod. Can I please clarify...is the notch sized to hold the bolt head captive? I can't quite tell from these photos. Yes,...probably not required if you use a longer bolt but it would be difficult to get any type of spanner in there. I did consider an Allen bolt but never tested it. Link to comment Share on other sites More sharing options...
Jubal Posted October 4, 2018 Report Share Posted October 4, 2018 8 hours ago, Tony Daniel said: Yes,...probably not required if you use a longer bolt but it would be difficult to get any type of spanner in there. I did consider an Allen bolt but never tested it. Thanks, that's what I needed. Plus, I'm not an engineer and want to be sure...is the 987.1 measurement 22.25" minus 3mm centre to centre? Ordered my bar last night. Off to a mate's well equipped shed to get it organised as soon as I can. Link to comment Share on other sites More sharing options...
Tony Daniel Posted October 4, 2018 Report Share Posted October 4, 2018 You can use the aluminium triangle undertray of your car to set out your hole centres, this is what Porsche use to brace the subframe. It can be a pig to get on and off depending on whether the car is sat on its wheels or not as the frame can flex slightly, hence the brace . The hole centres are roughly 562mm as a guide. Link to comment Share on other sites More sharing options...
toplad Posted October 4, 2018 Author Report Share Posted October 4, 2018 3 hours ago, Jubal said: Thanks, that's what I needed. Plus, I'm not an engineer and want to be sure...is the 987.1 measurement 22.25" minus 3mm centre to centre? Ordered my bar last night. Off to a mate's well equipped shed to get it organised as soon as I can. Yes, centre to centre Or just measure the blots which stick through the plate and are easy to get to Link to comment Share on other sites More sharing options...
Jubal Posted October 4, 2018 Report Share Posted October 4, 2018 6 hours ago, toplad said: Yes, centre to centre Or just measure the blots which stick through the plate and are easy to get to Sensible advice Link to comment Share on other sites More sharing options...
jagrs Posted October 5, 2018 Report Share Posted October 5, 2018 Sounds a great mod, can you buy it anywhere or does it have to be home made? I ask as I am not good with metalwork. Link to comment Share on other sites More sharing options...
edc Posted October 5, 2018 Report Share Posted October 5, 2018 As above you can buy it in the US from Pedro Garage but expect that is a very expensive way to do it. Alternatively you might ask nicely of somebody else already doing it to make and sell you one. Kindly @Tony Daniel did this a few years back. Link to comment Share on other sites More sharing options...
Jubal Posted October 13, 2018 Report Share Posted October 13, 2018 Thanks chaps. Instructions followed in my mate's man cave and the brace is now fitted without drama. I can't say I noticed the difference on the drive home through Wilmslow but I'm sure it'll be an eye opener on a Welsh B road ? Link to comment Share on other sites More sharing options...
edc Posted October 13, 2018 Report Share Posted October 13, 2018 90% of the time you won't notice it's there. It's only that 10% or less when you are really on it through some corners. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.