What: My track car – 1987 BMW 325is
If I knew then what I know now: not a lot… have a larger budget. My track car has evolved as I feel I have needed at a rate that has been on a equal plain as my skill. Could use a little more power now……
Check out: Any of your local track’s and driving schools!
My track weapon of choice is a 1987 BMW 325is. I bought it in 2007 with the idea that it would become my track car. It is what i wanted in a track car, it was in my price range, it was the color I wanted, it was well maintained by the previous owner, and all the work done on the car was at the company/shop I was working for at the time. the only thing it didn’t have was the small plastic late series bumpers. Not to sound snoody but I could look past the bumpers as that was the only bad mark I could come up with when looking at the car. At first i was also going to drive it on the road as well. Well that lasted about two weeks and a car with a bunch of good track race parts that had been wrecked in the guys driveway by a drunk driver became available. This was going to help my rack budget out very much that year. By the time
I had got my parts car home and used what i wanted and parted the rest, I was onto my car pretty cheap. And it had some good stuff at this point. The first parts push ended up with a full Ground Control coilover set, Treehouse Racing front control arm brackets, a set of SSR Comp wheels with Falken rt-215 tires ( in the day one of the top street tires), a new set of stainless brake lines, a low miles E30 M3 4.10 limited slip diff, a set of Powerflex subframe and rear trailing arm bushings, a Momo steering wheel hub adapter, and a new OEM set of euro head lights and grills and a pair of Bride sport seats. I added a set of brake pads, a steering wheel, and a pair of harnesses i had picked up a year or two before on sale. All these ended up costing about $1500. Like I said my track budget looked good that year. others have cost a bit more.
At this point I would say it was still a street car. It still had a back seat and carpet and a radio. I drove it like this for a couple months, but the track bug kept calling. So soon later I found a real race seat. No more reclining. This did now mean I was going to need to look into some sort of roll over protection as I had now defeated that safety measure. I did a lot of shopping and research about fit, style, cost, shipping, availability ect. The one that went in the car was made by a company called VSROne. It had the best clearance and fit in the car. It was not the cheapest option but for sure one I was OK with paying for. Remember I am not a fan of that compromised safety thing. So now the radio has half its speakers, there is no rear carpet or side panels anymore. The seat is in a fixed position. There is scaffolding in the back of the car. but looking forward from the drivers seat it could play the street car part for now……
A couple events into the life there was a thirst for more cornering load. Need to find some tires. Lucky for me there is a local race series that runs a similar car to mine and they tend to go through a lot of tires. So after a little hunting I acquired some real track rubber. in this case early on it was Toyo RA1 tires. These are great tires! They last along time, they can take many heat cycles, they made a lot of sizes, they are one of the cheapest track tires around. If they were still in production I would still be on them. Anyway, now I got some rubber and the car is pretty good. Springs in the car are now a little soft, I can feel the car hitting bump stops and floating a little on the grippy tires. The car already had pretty stiff springs. It was a bit stiff for the street, but not to bad. Front springs were rated ant 375 lbs/ in and the rears 475 lbs/in. At this point I had been working on a few Pro3 cars and had learned a few things. I almost doubled the spring rate of the car. Went to 650 lbs/in front and 800 lbs/ in in the rear. This was the next level of feel I was looking for at the track. Man is it stiff. Think of driving a skate board. So in making the suspension on my car up to track use I ruined the street ride quality. Not the best street car anymore.
Then there was the day I killed the carpet. Was still daily driving the car at this point when almost home from work the heater core blew a end tank and sprayed the entire left side of the carpet with coolant. For me at this point the decision was easy. Yank that smelly coolant soaked carpet out! All the rear was already gone so why not. The heater core fix itself is pretty easy, but the mess was amazing. couple issues I found with no carpet. The car is super loud, the passengers feet can get a bit warm, and I had no place to rest my foot when not on the clutch. So I built a dead pedal for it and that is all I reinstalled. Screw the passengers feet, and I can deal with a little noise, because racecar. Speaking of noise. I have had at least five different exhausts on the car. I bought it with a Dinan muffler, I killed that one looping turn 6 at Pacific Raceways in the rain. Then the custom Magnaflow cat back, this was great until I smashed it beyond repair at a PGP Time Attack on the rumble strips back when you could do that. Then I scored a IE stainless that was on the car for maybe three days, it was way to quite. I then built a Meghan racing muffler catback out of some spare parts. Didn’t look that cool but it was cheap and it worked. This was on the car until it was no longer driven everyday. It now has a pulse tuned equal length header and a flow matched exhaust built by the now closed Volvo custom shop RSI (R-Sport International) when they were developing a Pro3 race exhaust system. The sound on this is amazing but its is on the very loud side.
So now I have been tracking and driving this absurd track car that I have convinced myself is still a street car to the point that it has worn out again. The shocks are all worn and the fronts are dead. DEAD. All the rear suspension bushings, rear wheel bearings, the drive shaft, and a couple other normal maintenance items. So as you should do with any track car i went through and replaced all worn items i found again. I also took this opportunity to think about things I would want to change and the largest one I could come up with was the the shock travel. The car always felt a little held back by the shocks. The valving in them was set for a way softer spring combo, the travel was near the bottom of the shock stroke and they seemed to bottom out a lot because of this. So after much deliberation I got a set of BC Racing coilovers. you can order them valved to specific springs and come with some pretty good hardware. I got a set valved to the springs I had, and because I had springs I had them ship me a softer set (These will be used in another car). I did have to weld the strut tube to my spindle but that is something well in my comfort zone. Once installed and set and tested, I was able to get the result out of the car i was looking for. if felt way better on track, the shock adjustments are now felt, the cat doesn’t bottom on the shocks and they are running in there normal stroke range. I also again made another safety up date at this time. I removed the old race belts and my trusty Sparco race seat and installed a new set of Hans device compliant belts and a Momo head restraint seat. Also upgraded the passenger side belts from 5 pt to 6 pt. Again you can never be to safe.
The look of the car was also something that needed a update. Wheels and tires are getting long in the tooth so lets start with that. We are gonna put a little larger tire on it as well. So off come the old trusty 15×7 wheels and 225-50/15 tires and on go the new Roto 17×8 wheels and the same Toyo tire in a larger 235-40/17. This has created a new problem. The slightly larger size is now hitting the bumper trim and stop the tire. Bring on the fender roller. Little work there and they are in! Thats pretty up to date on the car as of this blog. Still on this seasons update list is a set of Massive Brakes big brake kit and a Diff limited slip unit rebuild. then next season the removal of the old roll bar and sunroof and the installation of a roll cage and clean up the interior wiring. Stay tuned in!
