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LAGWAGON
Re: A12 Turbo Development thread
#41
No life (a.k.a. DattoMaster)
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could do.... was thinking the same thing :) great testing and tuning tool you have now!

Posted on: 2011/12/2 22:25
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1200rallycar
Re: A12 Turbo Development thread
#42
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looks great, do we get to see pics of the whole car anywhere?

want to play with an A15ETT?

Posted on: 2011/12/2 22:56
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sikyne
Re: A12 Turbo Development thread
#43
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Sure, what does it need?

I`ll put a pic of the car up.

Posted on: 2011/12/2 23:01
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trb012
Re: A12 Turbo Development thread
#44
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Looking good mate very keen to come out and see it on the track again as well

Posted on: 2011/12/3 0:34
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trb012
Re: A12 Turbo Development thread
#45
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Looking good mate very keen to come out and see it on the track again as well

Posted on: 2011/12/3 0:34
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sikyne
Re: A12 Turbo Development thread
#46
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Be good to catch up Stu.


I`d like to put together another A12 with bigger valves and ports. I`ve got some quad TB`s that might get a go aswell.

I`ll just keep this current engine as a spare.
Before i pull it out i`ll do a couple of dyno ramps at 20 Psi to see what it makes.

Posted on: 2011/12/3 1:46
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revhead001
Re: A12 Turbo Development thread
#47
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Did you ever get the bike head up and running?

Posted on: 2011/12/3 3:40
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D
Re: A12 Turbo Development thread
#48
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It looks purposeful & has made many inc. myself to re-evaluate charged A series. Most peeps looking at it would say wow wheres the A12! I got to see the clean engine bay when I lowered the lil A12 in by hand and the attention to detail for a race car is inspiring.

Simon I know youve made better manifolds since this one for your bike head but do you think that you could improve the manifold plenum further? eg. tapered from throttle body to dual plenums or other if you go quads? There seems to be some loss of flow & equality in that section. You could prob use your bike head plenum section for better flow?

edit:
It would require reverse throttle opening so air flow is concentrated at the top and with the help of a small ramp on the bottom just as it meets the wide entry to the plenum and 10cm after throttle opening (I couldnt illustrate it the raised ramp insert).

Attach file:


jpg  plenum.jpg (19.46 KB)
737_4edeebab3501a.jpg 532X414 px

Posted on: 2011/12/3 4:26

Edited by D on 2011/12/3 4:42:11
Edited by D on 2011/12/7 4:29:35
Edited by D on 2011/12/7 4:33:08
Edited by D on 2011/12/7 4:35:11
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sikyne
Re: A12 Turbo Development thread
#49
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Ive put the bike head engine aside till i get the chassis sorted and lots of seat time for me.
Its nearly ready for assembly tho. still have to get the pistons fly cut and make the timing case.

D, I did the bodywork but had a friend paint it for me. So i cant claim all the credit for the clean look.
Do you have a welder and grinder? If you do, maybe make a manifold and put some of your theories to test.
Good welders come up secondhand on Graysonline, sometimes for only a few hundred.

Posted on: 2011/12/7 3:22
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Re: A12 Turbo Development thread
#50
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I said he could use mine as the gas will take me forever to use at my rate!

Posted on: 2011/12/7 4:09
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