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  #1486  
Old May 17th 2018, 01:14
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I canít believe how much this has changed since I was last on the forum! Great work Walter itís truely inspiring! In fact Iím still drawing inspiration off your original boosted 914 set up!! Now that was a long time ago! What figures are you expecting from your
New set up and what boost are you going to be running? Will you be running with the duck tail intercooler or something different?
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  #1487  
Old May 17th 2018, 04:34
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Quote:
Originally Posted by dub_crazee View Post
I canít believe how much this has changed since I was last on the forum! Great work Walter itís truely inspiring! In fact Iím still drawing inspiration off your original boosted 914 set up!! Now that was a long time ago! What figures are you expecting from your
New set up and what boost are you going to be running? Will you be running with the duck tail intercooler or something different?
Thanks for these nice words man!

My goal from the beginning has been to achive 400hp (crank) at no more then 1.0 bar boost (14,7psi).
For that the engine should have been at about 190-200hp N/A. Since I came close, but not exactly made those numbers, it will be 'nerve wrecking' to learn what the actual results will be..

Tbh, the engine was hardly tuned and still had some flaws (rockers hitting valve cover stands, exhaust leak, hence AFR readings were off), so maybe a little more would have been possible.

For now, I have put in the smallest wastegate springs there were in the box (7 psi or 0,5 bar), so on wastegate I hope to make 300hp. There is no wastegate exhaust fitted at all atm, so it dumps on top of the gearbox for now. Hope that doesn't kill some parts or whatever...Still lots to do therefore.

For an intercooler I was dead set to keep everything inside the engine lid, but that would mean a custom intercooler ($$) and that is just not in the books for now.
So I have indeed dug out my old intercooler and ducktail set-up and fortunately, everything seems to still fit and the needed piping was easy to build from tubing I had lying around.

To my immense satisfaction, I also finally was able to attach the twin spark and made the wiring work with how I wanted the coils to be positioned (le-ri either side of the engine bay)



Intake piping for the ducktail intercooler finished as well:
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  #1488  
Old May 17th 2018, 23:37
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Keep us posted on the progress!

Love being back here to see this coming together again...

Surprised you decided to run the hot side of things up above;
Figured you would want it 'downstream' of the cooling air..
What made you decide to go this way?
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  #1489  
Old May 18th 2018, 04:19
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Its a combination of factors to route the headers that way: mainly the orientation of the type 1 ports and my desire to construct a equal length system with as short pipes as possible.

The horizontal cooling made it then possible. It also neccesitated that the turbo was placed over the transmission and hence the need for the firewall to be replaced further backwards.

It took a LOT of work to accomplish those goals, but thats why its a hobby right?
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Last edited by Wally; May 18th 2018 at 04:33.
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  #1490  
Old June 1st 2018, 12:53
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In the meantime I got it running and drove it to our annual dynoday on its second drive
So, no tuning, no safety connected, but it did 0,5-0,7bar and got to 270hp at just 5000 rpm when the ignition fell out due to me not installing the twin spark wires in the correct way..



Compared to the N/A run, it already doubled its hp, so I have good hopes for the 1 bar shootout one of these days

After the dyno I rerouted the CAI to just under the car. Should help the intake temps some more I hope/suppose.


Downpipe and the wastegate exhausts are now also wrapped, which should do s/th for the heat as well. Plus a new lambda sensor. so I can finally tune the b*tch!


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  #1491  
Old June 3rd 2018, 17:17
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Thatís awesome Walter, great work. Somehow I missed out on your change of heads.....must have been half asleep reading your thread!! Really excited to see what you manage at 1 bar!!
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  #1492  
Old June 20th 2018, 11:09
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Tnx!
Well, I am not at 1 bar yet, but at 0,65 bar she was already fast(est) at our national beetle event this year (IKW Wanroij http://www.ikwwanroij.nl/index.php/activiteiten#sprint)

Found some issues with lambda monitoring, ignition and a wrongly installed breather
But that was the reason I went (finding issues)

https://youtu.be/mORbikvqoy4
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  #1493  
Old June 20th 2018, 13:01
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Wally, can you save me scrolling through 100 pages? What fenders are you using, and how was the fit?
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  #1494  
Old June 20th 2018, 14:33
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Haha: just the usual: Kerscher, awesome fit (because german :-))
fronts +3cm outside, rears +7cm inside&outside widenend
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  #1495  
Old June 20th 2018, 17:34
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Awesome! Thanks for that. The awesome fit being the most important part of buying fenders
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  #1496  
Old June 23rd 2018, 10:58
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412STi 412STi is offline
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Hi

The Kerscher Fender are the best you can get.
My brother in law already bought from several manufacturers, but those of Kerscher are by far the best fit.


Only for the short front end there is no version with horizontal headlights.
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  #1497  
Old July 2nd 2018, 04:51
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Cool avatar 412STi !
Would like to see a project topic about your car ;-)

Wrt my issues: I think I have got the lambda issues (so closed loop fuelling wseems to work again) covered now (PID values in the settings needed a different values then before somehow) and did not get any blow-outs anymore last time I went WOT on twin-spark and wastegate springs... so maybe the blow-outs (with the plug wires correctly installed) were AFR related (way too fat or lean) after all?

I'll keep you guys updated on any progress made :-)
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Last edited by Wally; July 2nd 2018 at 05:13.
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  #1498  
Old July 2nd 2018, 14:04
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Hi Wally
Thank you

You know me.
I contact you for infos about the brakeconversion to your former 412 sedan.
My project is progressing very slowly.
At the moment a Subaru gear is being prepared and in a few days/week I will get an almost new 2.0Ltr. Turbo (ex 2010 Forester XT)
I can not keep up with the brakes because the parts from Lanner / flat are missing.
But first I have to do a lot on the body.

If there's really something to show, I'll describe the conversion here.



Gerold
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Last edited by 412STi; July 2nd 2018 at 14:47.
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  #1499  
Old July 3rd 2018, 09:07
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Ah, I know now ;-)
Sounds great mate! I'll be awaiting your results patiently!
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  #1500  
Old July 3rd 2018, 11:29
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412STi 412STi is offline
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I do, but as written, it's only going very very slowly.

Is your car running?
Then fill up the gastank and come to our meeting next weekend in GroŖ-Gerau http://kbcgg.de

CU

Gerold
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