If a cylinder has a compression leak, it will have lower engine compression than it should. If the compression is leaking, your engine power and efficiency will suffer. The most common cause is leaking at one of the piston rings or valves. If a seal is damaged or the cylinder is excessively worn, problems could result from lack of pressure, including low power output (especially on hills), cylinder misfires, or starting problems. The most common repairs include replacement of the exhaust valves, head gasket, and piston rings. Engine Compression Testing A compression test is used to assess the mechanical health of the engine in terms of the compression that can be held within the combustion chamber. It measures the compression that results from the pressure created by each piston as it travels from bottom dead center (BDC) to top dead center (TDC) with the valves closed. A compression test can
The thing about race cars, is there is always something to do, and always areas to improve. For this build, our primary focus has been weight reduction of our mostly-stock Saab 9-5’s parts. Starting out with a ~3,500 lbs luxury sedan has been tough, but we’re continually finding ways of reducing weight by removing/replacing Saab parts and materials, and getting creative with making that happen. Here’s how we removed the Saab’s sunroof to make that happen. Removing the Sunroof A factory glass sunroof presents both a weight and safety concern for dedicated race cars, and was one of those spots that required a little creativity. The simplest solution is to cut an oversized plate of aluminum and rivet that to the roof. It’s extremely effective, and extremely crude, but can likely be built in a couple hours and let’s you move on to the next task. While our Saab 9-5
Maybe your BMW’s brakes have you scratching your head the way ours did. After years of reliable, solid braking performance, our BMW’s brake pedal had degraded into a soft, mushy mess usually around the 2nd braking zone of a track event. We first noticed things were awry last year but this season it turned for the worse – leaving us essentially devoid of brake feel. As we don’t need to tell you, the BMW community is big, and a little digging turned us on to a curious finding – after 20+ years (23 in our car’s case), The BMW e36 brake booster (like many others) go weak – not actually failing but frustrating those of us who demand the performance of high quality and fresh BMW brake parts. Get your new BMW 3-series E36 brake booster here: https://www.eeuroparts.com/Parts/11597/Brake-Booster-34331162963/ With essentially everything else new or refreshed in our braking system, we
Last week I received word that the cage design was done from S&W Race cars. John had sent over the drawings and and a general layout of the cage. After a few minor tweaks, we gave him the go ahead and the kit was on their CNC bender by the end of the week. I drove down to their shop the following week which is just outside Lancaster county in Pennsylvania to pickup the kit and the chassis. The tubing all came pre-bent, notched , numbered and ready to be installed . I was very impressed with the facility and now that the kit has been programmed into their system, they can be duplicated for a very reasonable cost (somewhere in the $600 range for 1 ¾” DOM tubing). If you’re interested in your own cage kit, contact S&W, they have kits already available for several European makes and models.
It’s not exactly uncommon knowledge that winter blues affect us salt belt racer dorks like no one else. No track days, salt covered roads, cold garages…it can lead to some serious depression…or some libation induced builds that would make herbalists jealous. ‘Just saying’ However even with such an immense amount of time on our hands, we all often push off basic maintenance until the first peeps of spring yard birds (not the band)…which usually coincides with a track day the weekend after (thank goodness for eEuroparts fast shipping!). This ultimately leads to 5x 20 hour days before the track, in which nothing really gets accomplished other than a list of what to attack for the next track event. Curing the Salt Belt Winter Blues Why do we do this to ourselves? We’re better than this! So with the above considered, are we ultimately mad at ourselves? Is there some sort