PROBE GT GLOSSARY -- Back M Michel Fortier  A man on a mission. He hopes to build a 400+HP monster out of his Probe. He is also the first one I know to dyno a KLZE engine. His web page: http://www.naplesnews.com/staff/fortier/suprprobe/Welcome.html . Motor Mounts Need stiffer engine mounts? MazdaSpeed mounts are an option, but they are pricey, and only offer  a 30% increase in stiffness. I found an alternative source for the lower mount in the Summit Racing catalogue ( www.summitracing.com )... The piece I'm talking about is the yellow one. With some creative drilling and bolting, I was able to  mount it. In short, I love the results! The engine definitely does not rock back and forth as much. The only downside is that there is more vibration transmitted to the car at idle -- a small price to  pay.  Here's how it looks installed (looking towards the rear of the car)... Ever since I got my car in 1996, the driveline had an enormous amount of slack. Clutch engagement and throttle modulation resulted in a lot of jerking (my TPS was adjusted perfectly, so that wasn't the problem). In May, '99 I pulled off the lower cross members, and exhaust manifold to try and  access the rear engine mount. It turns out that the mount was badly torn. The tears are indicated by the arrows. 1: rust proofing oil spray -- what a mess, 2: steering rack, 3: half shaft, 4: oil pan, 5:shifter linkages, 6: rear engine mount  To fix it I injected windshield urethane into the air gaps and hollow parts of the mount. This helped somewhat, but there was still too much slack for my liking. That's when I proceeded to use the yellow poly mount described above. Here's a shot of the front engine mount. This mount was already stiffened back in January '99 by injecting blue silicone into the air gaps. Silicone is comparable to windshield urethane in stiffness, but  it takes forever to cure. For the ultimate in performance, I recently (Aug. '99) replaced the front mount with another poly mount (same as the yellow mount pictured above). By welding a piece of pipe along the top of the  mount, the bolt that goes through the stock mount can be used to hold the poly mount. The other side of the mount screws to the longitudinal cross member. The mount is indicated by the '3', The mount screws into the cross-member just as the stock mount does with only minor modification to the cross-member. N   O Oil Also see Transmission Oil Synthetic oil is the best choice for those who drive their vehicles hard. Mobil 1 Synthetic has the lowest ash content of all motor oils. Castrol Syntec is loaded with ash, or more precisely, the  polymers viscosity improvers that result in ash deposits when the oil is burned. Check out http://www.ergonite.demon.co.uk/probemx/probefaq.htm for the run down on oils, and  their effects on HLA's. Oil Filter The stock filters is rather tiny. Using a larger filter results in less oil pressure drop across the filter  element. Here are a few filters that can be used in place of the stock filter (there may be others as well):   In terms of what brand to buy, never, never, never buy a FRAM (Quaker State filters are now also  made by FRAM -- they used to be by Purolator). This web page gives an excellent analysis of many types of oil filters... http://minimopar.simplenet.com/oilfilterstudy.html. FRAM filters have  cardboard end caps, the lowest filter media surface area, a plastic bypass valve, and an anti-drainback valve that seals against cardboard (i.e., doesn't seal well). Thanks to George Gebara (gg1@ibm.net) for the additional alternatives below. George writes: The filters that fit the Corvette ZR1 / Ranger 2.2 Diesel have the correct thread (M20*1.5) and the correct bypass pressure (range  from 8-14psi). It is the largest filter that will work on our cars, and is only about 25% smaller than a Ford 5.0 filter, giving it plenty of volume and in the case of a quality filter also plenty of media surface area. The filters that I have cross referenced are: Motorcraft FL794 $12 AC Delco PF970 $3 Purolator L20253 $3 Mobil 1 M1-207 $10 Amsoil n/a P  Paint See Wild Orchid Pedals See Aluminum Pedals Pictures Misc. pictures of my car       Counter installed April 1, 1999