| Author | Message | ||
| Rob Schermerhorn (Rexrcr)
Junior Member Username: Rexrcr Post Number: 163 Registered: 11-2002 |
MAT 122 is curently at Motion Products, Wayne Obrey's place in Neenah, Wisconsin. They ran the car last year at Cavalino, don't know if they did this year. Thanks, for your photos!  | ||
| Andreas Forrer (Tifosi12)
Member Username: Tifosi12 Post Number: 329 Registered: 10-2002 |
Rob, well a F1 car is an evolving thing, so it is very possible, that your car is end of season. You worked on the 91 Prost? Isn't that the one, that is now in the Modern Art Museum in NY (at least one of them)? I love that car. One of the most beautiful ever built. What I would give to ever seat in a Ferrari F1! Hope to meet you one day at an event. Can't wait to hear some of your stories. | ||
| Rob Schermerhorn (Rexrcr)
Junior Member Username: Rexrcr Post Number: 157 Registered: 11-2002 |
Andreas, there looks like there are a number of differences, notice the side pods at the inlet. Perhaps these are different chassis? I hear you on the cost of crash damage. While running Prost's '91 642 we fab'd our own components, as the Factory wanted the entire car back for any type of maintenance whatsoever. Cost and time unknown. I sourced replacement parts direct from the OEM, like spark plugs, even though they were modified for direct coil over, we had to do the mod. | ||
| Andreas Forrer (Tifosi12)
Member Username: Tifosi12 Post Number: 327 Registered: 10-2002 |
Front wing doesn't look original to me anymore. Different shape and color. Might be an aluminum replica. No surprise there. I talked once to an owner of a F1 car and said the first thing they ruined while pleasure driving it, was the front wing. Broke it while going over some curbs in a hasty way. Damage estimate for the carbon fiber piece: $ 30k!!! After that they replaced the wing with aluminum replicas and painted them accordingly. | ||
| Andreas Forrer (Tifosi12)
Member Username: Tifosi12 Post Number: 326 Registered: 10-2002 |
Had it raced that weekend, this is kinda what it had looked like: I took those at the Monaco GP. Back in those days you could almost touch the cars, they let you that close:   I remember, that I HAD to wear ear protection, the cars were that loud. | ||
| Ric Rainbolt (Ricrain)
Member Username: Ricrain Post Number: 430 Registered: 2-2002 |
"whereas F40 monitors intake manifold pressure here via solenoid valve ecu controlled pressure reducer" This is probably due to the fact that the F40 (in stock form) runs more boost at lower RPM, but tapers off as the revs rise, to limit thermal loading on the motor. I suspect the F1 cars were all-the-boost-you-can-make, all-the-time-possible type approach (up to a prescribed limit). | ||
| Rob Schermerhorn (Rexrcr)
Junior Member Username: Rexrcr Post Number: 156 Registered: 11-2002 |
We had this discussion recently, I just wanted to post some pics of a potent turbo engine. I don't know the chassis number, this was taken at Sears Point Challenge and Vintage race in 1997.  Didn't see this one on track that weekend, bummer, though they did run a Berger car with pneumatic valves. Sent two technicians from the F1 restoration department to manage the car. I was there to gain a little insight from them into a shifting problem with 642 MAT122, also at this event.  It's interesting to note that the wastegate monitors exhaust pressure on the "opening" side, whereas F40 monitors intake manifold pressure here via solenoid valve ecu controlled pressure reducer, and open to atmosphere on the "closed" side of the diaphram.  Note the divider in the exhaust outlets. |