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AlpinA A4 'Enzeldrosselanlage' System FS (Nm/Na)

markmac

By markmac,
in BMW 2002 and other '02

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SydneyTii
SydneyTii

My brother in law had an A4s, it really went well, I loved it, but I can’t see what makes it easier to tune than a Tii? Is it because you think the ITB’s are simpler than the Tii thrott

markmac
markmac

I believe Andreas who posts here occasionally is selling this off, I only post out of interest and in the event someone (here is looking for one) ….they will need to hand over a pretty good sized pile

JsnPpp
JsnPpp

I agree, I was thinking it could reach US$7K all things considered; rarity + completeness. Seems that some work has been done recently but doesn't mention bushings. Did all come with the orange letter

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RobC Enthusiast

RobC

Posted
Posted
6 hours ago, inkatouring said:

The two A4 systems I ran, one had 9.5/292/2.0 (Sahara 73tii) and the other was 10:1/304/s14 crank/2.2 (Inka touring).  Both ran better than any tii I had....

I drove your old 73tii at Road Atlanta in the BMWCCA instructor group a few years ago, and it was able to keep up with the pace of the run group. Very linear power curve, and it runs even better with a 123 ignition dizzy. Still runs fantastic throughout all RPM ranges at all throttle angles. The A4 setup is amazing when dialed in correctly.

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inkatouring Mentor

inkatouring

Posted
Posted
1 hour ago, RobC said:

I drove your old 73tii at Road Atlanta in the BMWCCA instructor group

I cycle through cars a bit too much -- I finish a project and after a few years move on to the next.  That's fun but there are a few cars I regret selling:  The Golf yellow CSL, the inka touring, and the Sahara tii.  Can you get that one back for me?

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now: '72 Inka 2000 touring, '82 Alpina C1 2.3  & '92 M5T (daily driver)

before: a lot of old BMWs (some nice, some not so much), a few air-cooled 911s and even a water-cooled Cayman S

Alpina restoration blog: https://www.alpinac1.com/

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JsnPpp Grand Master

JsnPpp

Posted
Posted
3 hours ago, inkatouring said:

I cycle through cars a bit too much -- I finish a project and after a few years move on to the next.  That's fun but there are a few cars I regret selling:  The Golf yellow CSL, the inka touring, and the Sahara tii.  Can you get that one back for me?

I forgot about your CSL - nice list of cars!

1973 2002tii (2764167), Baikal, sunroof, A/C, 5spd OD, 3.91 LSD, etc. Rebuild blog here!

In the past: Verona H&B 1973 2002tii (2762913); Malaga 1975 2002; White 1975 2002

--> Blog: Repro tii cold start relay;   --> If you need an Alpina A4 tuning manual, PM me!

 

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markmac Grand Master

markmac

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That is a big number for that system really.  I don't know how much it cost the others to do the throttle shafts and butterflies (several hundred anyway I should think)….and I can tell by looking at the pic those were the early butterflies so odds are your going to do it.  Curious of someone here on this board took the auction (and if they will admit it...haha).

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Conserv Grand Master

Conserv

Posted
Posted
4 minutes ago, markmac said:

That is a big number for that system really.  I don't know how much it cost the others to do the throttle shafts and butterflies (several hundred anyway I should think)….and I can tell by looking at the pic those were the early butterflies so odds are your going to do it.  Curious of someone here on this board took the auction (and if they will admit it...haha).

 

But you know, Mark, after hearing the raves about the system here, if I had an extra $15K, it sounds like a no brainer! My $15K is $10K to purchase it and $5K to overhaul it and set it up. Add 25-30 bhp to a tii and still have an entirely driveable car? I gotta start a GoFundMe page for the next one that comes up...

 

Best regards,

 

Steve

1976 2002 Polaris, 2742541 (original owner)

1973 2002tii Inka, 2762757 (not-the-original owner)

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JsnPpp Grand Master

JsnPpp

Posted
Posted

Wow, yes thats a lot. But yes, in the big scheme of things, it's bolt on goodness IMO.

 

Jason

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1973 2002tii (2764167), Baikal, sunroof, A/C, 5spd OD, 3.91 LSD, etc. Rebuild blog here!

In the past: Verona H&B 1973 2002tii (2762913); Malaga 1975 2002; White 1975 2002

--> Blog: Repro tii cold start relay;   --> If you need an Alpina A4 tuning manual, PM me!

 

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arminyack Veteran

arminyack

Posted
Posted

I was going to have a stab at it if the $$ stayed to relatively reasonable number, but when I woke up this morning ans saw where it was at, that was the end of that thought!

I wonder what it would take to reproduce/reverse engineer this set up...

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Simeon Grand Master

Simeon

Posted
Posted
24 minutes ago, arminyack said:

I was going to have a stab at it if the $$ stayed to relatively reasonable number, but when I woke up this morning ans saw where it was at, that was the end of that thought!

I wonder what it would take to reproduce/reverse engineer this set up...

 

The pump and its revised fuelling would always be the hard part. Modifying some available throttle bodies to take the K-fish injectors and then fabricating a linkage to interconnect with the pump would be relatively* easy. 

 

On balance you would probably look at using throttle bodies and electronic injection as less work and would be just as original. As an option you could get an old KFish pump and pull out the internals to leave a dummy. This could be connected to fake injectors via hoses on the top but the manifold could have EFI injectors installed underneath. 

 

 

 

 

 

 

*albeit beyond my skill level 

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rtheriaque wrote:

Carbs: They're necessary and barely controlled fuel leaks that sometimes match the air passing through them.

My build blog:http://www.bmw2002faq.com/blog/163-simeons-blog/

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otisdog Experienced

otisdog

Posted
Posted
5 hours ago, arminyack said:

I was going to have a stab at it if the $$ stayed to relatively reasonable number, but when I woke up this morning ans saw where it was at, that was the end of that thought!

 

Same...

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