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Home > Beginners Tech > Turbo-ing with Kugelfischer mechanical fuel injection

ppj_racing

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Hi to all you Mini Turbo-ing experts & enthusiasts!

Looking to turbo (Garret T2 or 3 ?) a 1480cc block
to go into into a Mini for son/fun/whatever.

Looking to use mechanical fuel injection
e.g. Kugelfischer ex-old BMW

Guess cross-flow head is required ..suitable
for turbo i.e. strong with good cooling
.. any suggestions .. please .. thanks


AlexF2003

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Why?!?!

Its ancient technology.

Alex

AlexF


Tom Fenton
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It could well work though, mind you probably not THAT much better than a carb?

Have you considered Bosch K-Jet mech injection (also known as crap flap!!) it is fitted to lots of mid 80's cars, VW Golf GTI before about 1987, Escort RS Turbo up to 1990 I believe, as well as lots of others, Volvos, VW's, Audis etc.

May be a better system in terms of ease of finding information and sourcing parts than the Kugelfischer system, plus the advantage is that if you get the parts from such as an Escort turbo you will have a setup designed for a 4 cylinder turbocharged car, hence you are already half way there in effect.


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Turbo Shed

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personaly i wouldnt go for a big over bore and the injection would be better using megajolt stuff. either way its a lot of work


wil_h

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I'm with Alex on this one.

But easiest crossflow head is the minisport 7-port.

Edit: see below, I wrote spares not sport. typo really.

Edited by wil_h on 14th May, 2007.

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miniminor63

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lots of wrong info here.

First: Megajolt cant do injection, VEMS or megasquirt is good do-it-yourself injection solutions. The first of the two is the best.

Second: Minisport does the old AKM 7 porter, not minispares.

:)


ppj_racing

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On 14th of May, 2007 at 01:18pm AlexF2003 said:
Why?!?!

Its ancient technology.

Alex



We have the car, we have the turbo & the Kugel, we have
the 1480 block .. and MFi is a doddle compared with EFi
.. plus we want to make it easier for the lad's 1st project

OK?


ppj_racing

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On 14th of May, 2007 at 01:25pm Tom Fenton said:
It could well work though, mind you probably not THAT much better than a carb?

Have you considered Bosch K-Jet mech injection (also known as crap flap!!) it is fitted to lots of mid 80's cars, VW Golf GTI before about 1987, Escort RS Turbo up to 1990 I believe, as well as lots of others, Volvos, VW's, Audis etc.

May be a better system in terms of ease of finding information and sourcing parts than the Kugelfischer system, plus the advantage is that if you get the parts from such as an Escort turbo you will have a setup designed for a 4 cylinder turbocharged car, hence you are already half way there in effect.


Well, we did consider blowing through Webers (we have a pair spare) but the plenuming etc put us off ..

The man who did the injection system for our rallycross car
says that, provided we get the right head, he can easily
fit injectors.


ppj_racing

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On 14th of May, 2007 at 01:26pm wil_h said:
I'm with Alex on this one.

But easiest crossflow head is the minisport 7-port.

Edit: see below, I wrote spares not sport. typo really.


We've been warned off those 7-port heads. We want high induction velocity for max torque, not just greater induction volumes.

Thinking of using a small charge-cooler ,, we have one from a Lotus-Carlton under the bench somewhere


ppj_racing

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On 14th of May, 2007 at 01:25pm Tom Fenton said:

May be a better system in terms of ease of finding information and sourcing parts than the Kugelfischer system,


Bosch who own Kulgel these days, say that parts availability
isn't too bad .. don't know yet what size plunger/pistons
we'll need though .. think the ones in there are 7mm


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ppj_racing

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On 14th of May, 2007 at 01:48pm miniminor63 said:
megasquirt is good do-it-yourself injection solutions. T

:)


Yes, we're thinking of our own mega-squirt system:)
It's the cylinder head that we need to find.
Anyone heard of "Elder cross-flow heads" ?
Think they're from down-under ..


miniminor63

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yes, they cost a little more than the 7 porter, but are supposed to be good. Marcel in Canada has one on his test engine. Ken himself has posted on this forum a couple of times.


ppj_racing

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On 14th of May, 2007 at 06:42pm miniminor63 said:
yes, they cost a little more than the 7 porter, but are supposed to be good. Marcel in Canada has one on his test engine. Ken himself has posted on this forum a couple of times.


Cheers, André

That's encouraging .. and I think that they also do
manifolds for turbos ?

Are they lots of $AUS ?????


ppj_racing

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Of course, y'all know that heat's a mega-problem. Oil cooling's going to have to be ace, as is engine/water cooling. Maybe 100% glycol would be better .. higher Specific-heat ...

Edited by ppj_racing on 14th May, 2007.


ppj_racing

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Anyone running a dry-sump set-up ?


ppj_racing

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One nice thing about the Kugelfischer is that with it, it's easy to throw extra fuel in, to help the engine run cooler .... and guess what? .... some methanol might just spill itself into the tank:)

And talking of fuel, AlexF2003 , had one of those BMW Mini Cooper Ss as a road-car for a while .. nice little supercharger ..plenty of low down torque ,, and quick enough to get you to the next petrol-station to fill-up again.... 25 mpg ! BMW are having a laugh; an X5 uses less! Heavy little car to, the BMW Mini .. compared with the bean-tin BMCs *oh well*

Edited by ppj_racing on 14th May, 2007.


Paul S

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I'm all for innovative ideas, but have you fully considered the use of electronic fuel injection?

There is a wealth of expertise and support on the net. Have a look at the Megasquirt DIY fuel injection website and forums.

To my mind, the electronic solution is much simpler than a mechanical system

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


Jay#2

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Yes elder is registered on here...

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=133701


On 14th of May, 2007 at 06:41pm ppj_racing said:


Yes, we're thinking of our own mega-squirt system:)
It's the cylinder head that we need to find.
Anyone heard of "Elder cross-flow heads" ?
Think they're from down-under ..

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ppj_racing

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On 14th of May, 2007 at 06:59pm Axel said:
I'm all for innovative ideas, but have you fully considered the use of electronic fuel injection?

There is a wealth of expertise and support on the net. Have a look at the Megasquirt DIY fuel injection website and forums.

To my mind, the electronic solution is much simpler than a mechanical system


Hmmmm ... tempting .. but we don't want to chuck the Kugel
not sure that EFi is necessarily simpler, and certainly not cheaper
as we've already got most of the kit to MFi ... it's the head that's crucial.

Yup, we realise that there's info everywhere ..but we were pointed here from another forum, or rather, our lad was !

Off now to watch dear old Tiff

Thanks all for your help so far ..please keep it coming ...

Edited by ppj_racing on 14th May, 2007.


Paul S

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I'm confident that we will have an efficient fuel injection system for the 5 port head within 12 months.

If you've not done it already, read up on the siamesed port code in the injection section.

EFI on a 5 port has to be simpler and cheaper than MFI on an eight port.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


ppj_racing

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On 14th of May, 2007 at 07:22pm Axel said:
I'm confident that we will have an efficient fuel injection system for the 5 port head within 12 months.

If you've not done it already, read up on the siamesed port code in the injection section.

EFI on a 5 port has to be simpler and cheaper than MFI on an eight port.


Hmmmm ..... have you tested in a turbo system?

From other info we've had, we're looking
at using an ELDER cross-flow-head .. for easier
exhaust manifolding for the turbo


Bat

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Hi,
It's not been tested on an engine at all so far, but is designed with forced induction in mind *wink*
Cheers,
Gavin :)

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ppj_racing

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On 15th of May, 2007 at 05:51pm Bat said:
Hi,
It's not been tested on an engine at all so far, but is designed with forced induction in mind *wink*
Cheers,
Gavin :)


Maybe we could be the guinea-pig ... for a consideration *wink*


Rob H

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On 14th of May, 2007 at 06:52pm ppj_racing said:
Anyone running a dry-sump set-up ?


I think Pete, aka mini1071s, was building a dry sump set up, although I don't know if he got it running or not.

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=7614

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danboy

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Very interesting, perhaps you could have a word with pete ( 1071 s ) and when you get it sorted you could point us in the right direction. The dry sump option would be a great benefit to give the ultimate in power and reliability.
Regards
Dave

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