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post #21 of 37 (permalink) Old 04-17-2011, 08:47 AM Thread Starter
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hello,

front rims: 8" x 13" front tyres: Yokohama Y352 215/50/13
rear rims 9" x 13" rear tyres: Yokohama Y352 235/50/13

A twin cam engine could be affordable, but it has to be tuned. The Renault engine can be tuned for less money. The twin cam can be more powerful, but if our engine has 150-160 HP, it will (hopefully) be great. In the moment it has 135 HP. It will get better camshafts.

kind regards

Stefan
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post #22 of 37 (permalink) Old 04-04-2013, 01:11 PM Thread Starter
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Two years later...

now we are going to begin our third racing season with the Europa S2.

The story told briefly:
In Winter 2010 we decided to race the Europa. My father, my two older brothers and me would be the drivers.

But before we were able to start racing, it took more than six month to get the FIA Historic Technical Passport. Unfortunately we were not allowed to start in GT class. Because of the not-standard engine and the flares, we must start in the Two-Seater-Racing-Cars class against cars like Porsche 906 and 907. These opponents are uncatchable for us, but it's already great that we are able race the Europa.

Two years ago, we talked to some Lotus-"Experts", which said that the Europa is in standard configuration already quiet fit for racing. So we installed the safety measures, semi-slicks and went to Spa-Francorchamps to race. We thought the engine would have around 130 HP...

But after the first qualifying it was obvious that the Europa is not fit for racing...
My father's short conclusion: "No brakes and no power."

In the paddock we were able to improve the brakes by using endurance-racing brake-pads and racing braking fluid. The engine could not be done there. In the race, we did not finish, because the fan wheel collapsed and killed the radiator.
And after this weekend, we saw another problem. The frame was cracked on some positions.

We had to do "something":
- restore the frame by welding it
- reduce weight
- improve the brakes
- improve the engine

The frame is completely restored now. It is welded on all cracked positions and painted in grey.
We reduced the weight from about 740 kg to 680 kg by using light-weight parts (for example the new radiator and fan wheel) or removing superfluid parts like the leather-interior, the heater and so on. We also replaced the original door windows with electric lift by lexan-windows. The brake is now a two circle system with steelflex brake-lines.

And the greatest succes was the engine. At the first race it had maybe 100 HP (little tuned 1565cc engine).
Now the engine is "really fit for racing". Racing parts like pistons, rods, crank shaft and cam shaft are used. And also the cylinder head was completely conditioned for racing. Now it has about 150 HP.
It's running great. I still remember a situation from a race on the Hockenheim-Ring:
A 2,0 Porsche 911 is in front of me, both of us are accelerating out of a corner and I overtake him like it would be nothing. This Porsche had no problem and it is a quiet fast 2,0 911. A great feeling :-)

But still the braking is not like we would wish it. It seems like the rear brakes are not working good enough... We have to brake until 70 metres earlier at the hairpin in Hockenheim than some other cars (for example: a Porsche 911 can brake at about 120 metres and I needed to brake around 190 metres before the corner).

Everything else on this car works great now. We replaced the original (soft) coils and dampers by racing parts. We also reduced the cars height until 7 centimetres. When we learned about setting the car up, we could be able to reach top ten positions in our competition. In Hockenheim we reached position 27 of 50 cars and P3 in class.

The two other races in 2012 went quite bad. We had to retire two times, but the damage was not too bad (first time head gasket and second time overheating engine). Now we use a new wider radiator for 2013.

In three weeks the first race of the 2013 season will be started on the Formula One Track of Hockenheim. I'm looking forward to this weekend

P.S.: Here are a few pics
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Last edited by Mecky; 04-04-2013 at 01:17 PM.
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post #23 of 37 (permalink) Old 04-04-2013, 04:37 PM
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Congrats on your racing efforts! The car looks great. Are you using braided stainless steel brake lines? That would improve the feel. You might also try adding a brake bias regulator so you can adjust the balance between the front and rear brakes to get the rear brakes to do more.
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post #24 of 37 (permalink) Old 04-04-2013, 05:43 PM
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Thanks for the update, and for persevering in campaigning this classic.
I think we all have dreamed of what these would be like driven in anger!
Best wishes, and please do keep us informed of your adventures!

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post #25 of 37 (permalink) Old 04-04-2013, 06:45 PM
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Your car is looking a lot better than when you first showed it to us! Congratulations on your progress!

Have you seen the Competition Manual put together by Jensen Motors (http://lotus-europa.com/manuals/misc/jensen.pdf). They had a twin cam but a lot of the things they did would be useful to consider. I don't know what the rules are for your class, but Richard at Banks (in England) has vented front discs and also rear discs. If you have to keep the rear drums, maybe you could go use the Special brakes - they're wider. I think there's also a twin leading shoe setup which would be better than the S2 drums. To expand on what EuropaFan said, there are some really nice twin M/C pedal setups that could help also. They mount in the bonnet (front trunk). Here's one example: http://groups.yahoo.com/group/lotuse...unt=20&dir=asc

Keep up the great work and you'll be more competitive in no time!

Last edited by BDA; 04-04-2013 at 06:56 PM. Reason: added more brake stuff
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post #26 of 37 (permalink) Old 04-04-2013, 08:08 PM
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Your Europa is looking fantastic!! Keep up the good work and hope you do very well in your races this year! Can't wait to see pictures of you winning!! Good luck!
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post #27 of 37 (permalink) Old 04-04-2013, 09:04 PM
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Nice car! It looks like you could save another 20-kilos by replacing the battery...
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post #28 of 37 (permalink) Old 04-04-2013, 10:25 PM
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Quote:
Originally Posted by TheKid#9 View Post
Your Europa is looking fantastic!! Keep up the good work and hope you do very well in your races this year! Can't wait to see pictures of you winning!! Good luck!
+1

** save ~10 lbs gain 1 hp ** EQ: Y=(190*X) / (1984-X) where Y is (HP) and X is (lbs)

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post #29 of 37 (permalink) Old 04-05-2013, 02:13 AM
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ive enjoyed reading your progress, than you for sharing.

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post #30 of 37 (permalink) Old 07-23-2014, 01:00 PM Thread Starter
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Hi guys,
we had a nice weekend at Spa-Francorchamps. The weather was brilliant, but because of the heat we had some trouble with an overheating engine while qualifying. After 15 minutes of quick driving and reving up to 6500 rpm the water gauge told me about temperature of 110°C. That was not a problem for that short time, but it would be over the race distance of three hours. Because of that we had to limit the revs while the race down to 5500 rpm. That ment a constant temperature of 95°C and nothing broke.

Naturally this was a big disadvantage in performance. We had to leave the throttle pedal half way through the long straights. But in the corners we were able to go really quick, so that we came 34th of 62 cars overall and 3rd of 6 cars in class. We did beat a Mini Marcos (this guy's car is a 1300 ccm GT car, but he has to race in Two-Seater-Racing-Car class up to more than 2 litres, as well), a Ginetta G12 and a Ford GT40, which did not finish. The GT40 stopped in the last corner of the last lap (probably out of fuel) and because of the endurance-reglement we took the third place off him, although he completed more laps. But if you don't cross the finishline, you will not be classified.

The TSRC class was won by the extremely quick Daren Mk3 with a Cosworth BDG engine (270 HP with 500 kg). Second place went to another great car: Chevron B16 with about 250 HP and 590 kg. The Daren was driven by three-time Le Mans-winner Marco Werner and the GT40 by Audi works-driver Frank Stippler, who won the 24 hours Nürburgring 2012.

Our fastest lap was 3:15,1 min, which is quiet nice under these conditions. I think if we could press the right foot hard down, around 10 seconds faster would be possible. This time we were lucky.

Best regards
Stefan
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Last edited by Mecky; 07-24-2014 at 09:36 AM.
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post #31 of 37 (permalink) Old 07-23-2014, 03:30 PM
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Congratulations on your success at Spa! Your car looks a lot more like a race car now! You've done some good work on it.

I hope the success continues!
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post #32 of 37 (permalink) Old 07-23-2014, 04:35 PM
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Thanks for letting us know of your successes. Very nice work!

Anyone can make something complicated. It takes genius to make it simple. Einstein.
2011 Evora S Racing Heritage Edition (#3 of 4) (Now with alexsharkeyross)
2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, BWR 'charger lives!
1974 Lotus Europa Special 3841R in JPS livery
2007 Toyota Tundra (about 10 cup holders), traded for 2015 Tundra TRD PRO
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post #33 of 37 (permalink) Old 02-09-2015, 02:03 PM Thread Starter
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Hi boys,

Here is the report about the rest of our 2014 season. We had a few problems over the weekend in Zolder in NSeptember, but could finish without major problems. The engine is still very strong and completely mounted.

The first problem stopped our ambitions in qualifying. My dad had to come to the pits, because the gearbox mounting broke. That caused a huge amount of movement in the suspension and the car was undriveable. After reparing that issue, we started from position 23 and my brother drove the first stint. But just after ten minutes, he came into the pits. The clutch pedal sometimes "stayed down" while braking before a corner and then suddenly decided to come back up, what caused lots of trouble before the tight corners. This problem also caused a quiet big damage of the right front wheel-arch, because my dad almost lost the car and could not avoid a "speed bump" at a tight chicane. The tyre smashed into the arch and broke it on several places.
Unfortunately, we thought the reason for the problem was the adjustment of the clutch cable and some changes there did not help at all. We were not able to sort the reason out before the second driver's change. The brake pedal did jam the shaft of the clutch pedal and after a bit of lubrication, the problem was solved. Because of that, I had a very good beginning of the stint and my first lap of the weekend was already our fastest lap of the race. The second lap was even four seconds faster (2:02 min) and then it started drizzling a bit. After a few more laps, it seemed to get completely dry, but then it started to rain heavier. I told myself that the hunt for the 1:59 min laptime was over and slowed down, but not enough. I spun and the engine stopped. A problem with the starter made it necessary to wait around 12 minutes until the engine started again. I learned a lesson for my life that day and brought it home very carefully. unfortunately we lost 9 positions due to my fault and finished 24th overall.

After that, we had our final race of the season at the Nürburgring in October. 4h race into the dark. We had two qualifying sessions without any problems. I had to do the first stint and was very very careful while driving the first corner of the first lap, because it's a hairpin, which follows to the longest straight. At the start lots of guys had trouble with reacting to the lights properly and because of that I gained around six positions before the first corner, from which I lost four through the rest of the first lap due to my cautinousness. But I was already winning back one of them, before I missed my braking point. That meant, I would not miss a contact with a Porsche 911 driver in front of me Oh deer, I f**ked it up. Completely. I thought, I threw the whole 4h-race away in the second lap. I came slowly into the pits. I could already see a damaged wheel-arche from the driver's seat and feel that the car wanted to steer to the left on its own.

When I came in, I was so ashamed of what I did. I jumped out of the car, answered the obligatory questions and started to remove the wheel. I saw the lower wishbones and the rear one looked really bad. The upper ones were completely OK and after removing the damper, I saw that the front lower wishbone was OK, as well. My father flattened it almost perfectly and I started to reassemble the front suspension. Both left wheel-arches got a treatment with gaffer-tape. After about 40 minutes of repairing, I could go out again for another ten laps until the first regular pit-stop. I tested, If the car was driveable and I saw that it was. The front suspension was a bit out of adjustment, which lead to a bit of understeer. When I won back some of my confidence in the car I was able to drive one brisk lap, but still far away from what I had done with an undamaged car. 2:37,1 min is about 5 seconds off the limit, I think.

After that, I gave the car to my father, who also had to gain confidence, but constantly gained time. The third stint was my brother's, who had to drive into the dark, which was a problem because of the bad adjustment of the headlights. But both brought it home brilliantly and finished 3rd in class.

Because of that we reached second place in the championship of the FHR Endurance Cup Division 3 in front of a Ford GT40 and a Porsche 907. Only a Chevron B16 has more points.

You can have a look at our latest activities at my website and our new facebook page Yellow Arrow Racing Team on Facebook

Best regards

Stefan
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post #34 of 37 (permalink) Old 02-09-2015, 02:17 PM
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Beautiful Europa, best wishes!
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post #35 of 37 (permalink) Old 02-09-2015, 08:40 PM
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Great result considering all the delays.

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post #36 of 37 (permalink) Old 04-26-2015, 05:10 AM Thread Starter
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Hi there,

i can report from our first race of 2015 at Hockenheim. We went to the track with a freshly painted Europa, only the engine cover was missing. We lost it while transporting the car to the painter dew to strong wind But we got a completely new light weight one (4 kg). Now it is painted, as well, but in Hockenheim we had to use it in neutral collour.

It was a really tough weekend. We had so much trouble. After the first practice, the radiator leaked. Solved, but after the second session the gearbox had big problems. No gear could be shifted. A selector rod inside the gearbox was bent. We could solve that just in time for the start of the race, but for the fine adjustment of the gear shifting was not enough time. First was not useable while driving. But that is only an issue while starting from nought.

The race started quiet good and my brother had a long fight with a Porsche 911, but on the longest straight at about 200 kph the windshield and its frame lost connection. The wind blew under the roof and pulled it up fitfully. It took about 15 minutes to tape it carefully and he went on. He was able to lap in about 2:19 min.

Then I went out for the second part of the race and almost had a very low positioned pressure point at the brake pedal, which I was not used to. That happened, because we changed the brake balance with a much smaller rear master brake cylinder, which caused massively braking rears. The brakeshoes wear out over 1,5 h race distance and we could not adjust it in reasonable time. It took me a lot of time to gain confidence in the brake, but when I tried to brake later, I almost crashed into the back of a BMW 2002, which has much better brakes. So I gave up on late braking and focused on bringing it home.

But then I had a very miserable feeling. It felt like the front and rear end of the car were not connected anymore. The central nut of the stub axle went lose. I came slowly to the pits and we fixed it. We had to remove the old splint pin, which was cut of, but the middle part was still inside. That took another 15 minutes. The last part of the race was all about smooth driving. And a few minutes before the end I drove one quiet quick lap, just because I wanted to show at least half of the car's potential. I drove 2:14 min, after I rolled around the track at 2:21 min the 1,5 h before. I wanted just a little satisfaction But with a well adjusted brake balance and all my confidence in the car, I think 2:09 min is possible.

After the distance of three hours we finished 17th out of 40 cars and 1st in class.

You can have a look at some more pics at: www.facebook.com/yart.racing

Best regards

Stefan
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Last edited by Mecky; 04-26-2015 at 06:04 AM.
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post #37 of 37 (permalink) Old 04-26-2015, 08:06 AM
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Ouch!!

Impressive determination.

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2011 Evora S Racing Heritage Edition (#3 of 4) (Now with alexsharkeyross)
2005 Elise LRG, Trim Shop interior, full cage, Cup wheels, BWR 'charger lives!
1974 Lotus Europa Special 3841R in JPS livery
2007 Toyota Tundra (about 10 cup holders), traded for 2015 Tundra TRD PRO
2007 Audi S4 DTM (RIP) 1980 Rover SD1 (new home) 2015 Honda Civic Si
2016 370Z Nismo
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