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  #391  
Old May 5th 2010, 10:47
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Quote:
Originally Posted by Xellex View Post
Excellent! Like it a LOT
Quote:
So, how did you do it? I'd like to be able to use the 911 tachometer also.
It was handles by a specialised shop locally. I am not that handy with electronics
There is a gauge specialist in germany also (Peter Fett, Fett-electroniks.de or s/th) that surely can do it.

Last week I started something I am thinking about for a long time. So, just did it and went to fabricate a rough shape out of cardboard and when it was somewhat ok-ish, made a better one out of 5.5mm plywood.

Its a 'splitter' and turned out like this (in primer now, will be painted black):



I have no idea if it will work as I think it could be, but only one way to find out huh?
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  #392  
Old May 5th 2010, 14:00
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Great minds!!! I did mine out of ABS plastic, heavy but durable, that I would make a mold of and make from CF/Kevlar if I like it. I'm worried that in normal daily driving it is going to be too beat up.



The front leading lip is an extra I purchased years ago for my E36 M3. I think its funny that my bug is as wide as the almighty M3 now!

Jason
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  #393  
Old May 5th 2010, 15:54
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very nice wally
I have been thinking the same and even doing a whole underbody just to try to smooth out the air flow under the car..
just need the time and $$ to do something that big tho... lol
can't wait to see it done and on the car
Chris
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  #394  
Old May 6th 2010, 08:34
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when i put the splitter under the front of the race, same as you used 10mm ply board for mine and about the same shape.it made huge differance in high speed turn in. did have raise my static ride hight abit to allow for reduction in high speed ride hieght. with that and the f3 lola rear wing i run i was getting about 25mm lower ride hight above 75mph so it was doing somthing.
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  #395  
Old May 6th 2010, 15:23
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Thanks for the encouragements guys!
Quote:
Originally Posted by judgie View Post
when i put the splitter under the front of the race, same as you used 10mm ply board for mine and about the same shape.it made huge differance in high speed turn in. did have raise my static ride hight abit to allow for reduction in high speed ride hieght. with that and the f3 lola rear wing i run i was getting about 25mm lower ride hight above 75mph so it was doing somthing.
Thanks for sharing your experience Rob!
So, I guess it will probably do 'something' huh? 25mm lower ride height at 75mph
Lets see, I run around 130 mph at some parts of the track, so I better make some extra reinforcements... especially since its only 5,5mm thick, not 10mm
I just painted it black, now drying out

Oh, the carbon front disks finally seem to work ok, so I hope they stay like this.
Hopefully coming weekend I can make a pic of the tray under the car. I may you guys help on how the ends should look like as the ends are much wider than the Kamai.
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  #396  
Old May 7th 2010, 04:27
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the first mounts i made for it out of 5mm alloy broke after about 10 miles of use i had to seruiosly beef them up. in the end i ran 8mm alloy mounts from the front bumper mount down and then a 25x25x5 alloy angle running the full width at the front. I could stand on it in with the new mounts
first pic is what i had and the second is what i run now. I'm going to put a splitter on the new one as it worked so well on the old one.
Attached Images
File Type: jpg 1723354731_4751cc1680_o.jpg (65.7 KB, 65 views)
File Type: jpg 2849737983_b747597231.jpg (29.3 KB, 69 views)
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  #397  
Old May 7th 2010, 05:01
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Rob, if you're getting a 25mm compression @ 75mph that equates to 260lb of downforce at your spring rates! That's very impressive for a bug.

One suggestion though - put a couple of castors under the splitter to stop it bottoming out. lol.

Clive
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  #398  
Old May 7th 2010, 13:03
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it really suprised me how much it was going down. when i ran with no areo stuff on it to when i ran with the big rear wing and the front splitter, i didn't change anything on the suspension and i was getting rubbing on the front splitter and exhaust at speed. had to raise it up approx 25mm all round to stop it. the early pic's of the car at speed show the front lifting a lot, like 30/40mm which ment it wouldn't turn in at speed lol. with the big rear wing and splitter it made 6 seconds differance up prescott!
want to try a proper rear defuser as well for next year to try and clean up the rear air flow from around the engine gearbox. shoiuld be ok with this as i dont do any runs that are longer than 1.5 mile so the heat build up is not to bad. when i ran a rear defuser before on the road i noticed a marked increase in oil temps.
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  #399  
Old May 9th 2010, 15:55
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I got the plate painted black and made all the brackets for support, so trial-fit time. You can also see the alu profiles I used for added stifness of the plate.
Just need to think of something for the end pieces. Was thinking of an sloping upward piece for added downforce. Any ideas?
The ends will be connected to the bumper ends with a bar afterwards.



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  #400  
Old May 9th 2010, 16:59
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Pretty cool Wally.
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  #401  
Old May 11th 2010, 13:25
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Just fixated the ends with some bars I welded quickly so they won't flutter at speed (hopefully) and I can drive/test this contraption.
Just fixed two boost leaks from my central (self made...) boost line box...(oeps) Maybe that will fix the 1 bar boost limit I seem to keep experiencing, but I doubt it.

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  #402  
Old May 13th 2010, 09:00
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Looks great Wally! I think it will work well also.I´m not sure if the cable attached to the bumper will hold up.The cable isn´t the problem,but I fear the bumper may bend at high speed,you might need a more stable mounting point,like the mounting bracket for the bumper inside the wheel well.
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  #403  
Old May 13th 2010, 11:29
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Thanks! Yeah, your probably right as it all hangs now on the front bumper brackets. It would be better to support it a to the inner fenders as well probably.
Anyways, I did a test run today with the splitter for the first time and ... it stays put very well already :-))
Even above 200 km/h it doesn't bend too much at all. Very happy with that.
I got a youtube vid uploading now that should show how stable the splitter is.

Furthermore and MOST importantly I finally got the EBC working! It turned out I had a wire not connected at all.. (oeps)
I now can run a stable 1.3 bar (19-20 psi) boost.
I was so happy that I scheduled a new dyno run for coming saturday. Really, really curieus is or what extra hp this will give.
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  #404  
Old May 13th 2010, 14:06
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nice work Wally.. so lets see the video

Chris.
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  #405  
Old May 13th 2010, 14:30
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I've debated internally about a splitter for a long time and just never did anything with it. Good to see you guys moving forward and providing some insight. I don't need more to do, but you are tempting me.
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