michaltalbot
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« on: August 20, 2007, 02:38:34 pm » |
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So, my engine has more than 8000 kms after renovation, yesterday I changed the oil (Shell 10W40 again, of course), and everything seemed to be O.K. so, why not to proove it on the race circuit There were some unimportant Ferrari F430, Porsche GT3RS, Mazda RX8, Honda Civic Type-R, etc... but I was happy that my friend with tuned Chevy Camaro arrived, so we could compared our totally different cars. He changed everything in his engine, now it isn't 5,7 but 6,2 litre V8, with Holleys, spec.cams, valves, huge sidepipes and many more extras. Now it has 400PS and with adjustable suspension and large rear tyres it looked like David vs. Golias Also I must to say, that this boy is living near circuit and knows this track very well because he is a mechanic for Mr.Ulman who is a race pilot on Formula Opel Reinhard Cup, also he owns one old Fiesta from Fiesta Cup races, so he is better driver than me. At first, we drove 2 warm up laps and than we started with race - I was behind him. He drove very clean trail and on straights he was faster a little, but in the corners I saw, that Murena has a lot of reserve so in one of them I overtook him and what happend than I don't need to describe Corner by corner I was more and more far away from him as You can see on the pictures - two corners sufficed to have double spacing between us. Murena S with Spax suspension is absolutely great race car and it was very nice experience.
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Anders Dinsen
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« Reply #4 on: August 22, 2007, 09:29:51 pm » |
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Hehe, I wouldn't have published that if it was me but it's good to see your car go around. I think your success attributes to three things: One: Your car is well set up. Two: The Murena gives excellent drivers feedback. And three: You are a very good driver. One thing I wondered about though... what IS your setup? Spax suspension is a lot of things, most notably what's your ride height? It is lower than standard judging from the photos of your car. Whats the static camber on your front wheels? What tyres are you running on? And what's the tyre pressure? It's always good to know what works - if you wanna go off the standard track Cheers, Anders
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1982 Talbot Matra Murena 2.2 prep 142 2017 BMW i3 "Charged Professional" 94Ah
Used to own: 2001 Renault Matra Grand Espace "The Race" V6 24v 1997 Renault Matra Espace 2.0 8V 1987 Renault Matra Espace J11 2.2
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michaltalbot
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« Reply #5 on: August 22, 2007, 11:08:58 pm » |
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Well, I will make measurement tomorrow. Now I only can say that tyres are Toyo, but nothing else for now... But yes, it is lower, harder and wider - I've mounted 15mm spacers under all wheels, shock dampers have function on 92-93% (nearly new), tyres are 185/60/14 and 195/60/14. I only must to say NO, I am not a good driver because lot of seconds were spent by sliding and that's bad next time I am going to drive with my friend who promised to teach me the best trail on the circuit. But everybody was unable to understand how much this suspension accepted - wrong trail, my mistakes, high speeding, etc... Maybe my set up was upgraded by full boot. Me and my wife, we were going from visiting her mother, so on the circuit, there was also with me: roast duck with dumplings and cabbage, chicken soup, home-made chocolate cookies (you know how hot is in boot of Murena so you can imagine the result ), clothes, shoes, etc. As I am working as a sales manager for Bridgestone CR, guess which tyres will be the next ones
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Anders Dinsen
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« Reply #6 on: August 22, 2007, 11:29:44 pm » |
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Well, I will make measurement tomorrow. Now I only can say that tyres are Toyo, but nothing else for now... But yes, it is lower, harder and wider - I've mounted 15mm spacers under all wheels, shock dampers have function on 92-93% (nearly new), tyres are 185/60/14 and 195/60/14. I only must to say NO, I am not a good driver because lot of seconds were spent by sliding and that's bad A bit of controlled slide doesn't harm anyone, but of course if you aren't taking the ideal lines on the circuit you are bound to get sub-optimal lap times. next time I am going to drive with my friend who promised to teach me the best trail on the circuit. That will be very good! It's great to have an instructor in the car to help get it right! But everybody was unable to understand how much this suspension accepted - wrong trail, my mistakes, high speeding, etc... Maybe my set up was upgraded by full boot. Me and my wife, we were going from visiting her mother, so on the circuit, there was also with me: roast duck with dumplings and cabbage, chicken soup, home-made chocolate cookies (you know how hot is in boot of Murena so you can imagine the result ), clothes, shoes, etc. Oh NONONONONO, I don't want to think about it. I hope the soup was in a good container!! The trouble (or good thing depending on how you see it) with the Murena boot is that when you are driving you can't hear things being tossed around back there. Back in the spring when I was going to have my Yoko's fitted, I had the alloys in the boot - and I'd only gone a few hundred meters before I started thinking "what's wrong with my engine!" - it was just rattle from the rims, but the sound was really odd! Yokohama?
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1982 Talbot Matra Murena 2.2 prep 142 2017 BMW i3 "Charged Professional" 94Ah
Used to own: 2001 Renault Matra Grand Espace "The Race" V6 24v 1997 Renault Matra Espace 2.0 8V 1987 Renault Matra Espace J11 2.2
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michaltalbot
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« Reply #11 on: August 23, 2007, 09:10:03 pm » |
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Well I am back from my garage (which is cca 1,5km from my house) with some measures. I went to shopping center garage (floor is absolutely straight) and measured this dimension: Rear: 61,5 cm Front: 58,5 cm The lowest point of place where is the lifting point (sorry for my English, I mean point for original jack) is 13 cm above the ground. Front axle has torsion bars and Spax shock dampers are without springs, rear axle is equiped by Spax dampers with adjustable high by dural o-ring, and classic springs. When we are going to meeting, the sleeping-bag is in the boot to be warm, and drinks are near the spare wheel to be cold
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Anders Dinsen
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« Reply #13 on: August 24, 2007, 11:25:09 am » |
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I've been following a thread on a racing tech forum lately where a guy racing a couple of camaros of different generations bent a couple of valves last weekend because of overrevving of the engine (gearchange linkage fitted the wrong way round as far as I understand!). The discussion evolved into a generic discussion about performance of his cars... his current race machine is powered comparatively to your friends camaro, and the guy implies that he can easily "outbrake" many of the lighter cars he races against, and that people are generally impressed by the cornering abilities of his vehicle. Now, this car isn't road going - it's a pure race car. I don't think the suspension has been changed much, though - probably still still running US style leaf springs and stiff rear axle For a quick comparison with the standard setup, your numbers are adequate, Michal. Krede, I'm not going to be impressed with any custom setup until it has been tuned on a skid pan and race track. Until that has happened, we don't really know if it's any better than standard. Yes, I'm growing old and grumpy, but at least I admit it! And when it comes to it... the driver does much more to performance than all the expensive stuff we can get. As the Camaro story above probably also implies.
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1982 Talbot Matra Murena 2.2 prep 142 2017 BMW i3 "Charged Professional" 94Ah
Used to own: 2001 Renault Matra Grand Espace "The Race" V6 24v 1997 Renault Matra Espace 2.0 8V 1987 Renault Matra Espace J11 2.2
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