goodall
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| posted on 25/3/07 at 02:44 PM |
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turbochargeing bosch k-jetronic
simple or difficult?
have the inlet manifold of the diesel engine and the exhaust manifold as well and the turbo and the assorted piping for the diesel but i want to fit
it to the petrol version of the engine so can would it be difficult to do this does anyone know and even if it was what all do i need that i dont have
there
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worX
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| posted on 25/3/07 at 03:01 PM |
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I have heard of it done before but iirc I am not sure that you can use a diesel turbo in a petrol application.
I think that apart from sometimes being a smaller turbo to ease lag, the diesel turbo has some fundamental differences - I'm sure someone on
here knows what they are, but, sorry I don't!
cheers,
Steve.
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Peteff
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| posted on 25/3/07 at 03:58 PM |
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There was a turbo expert on here last year who mentioned that the diesel turbo doesn't stand up to the heat generated by petrol engines too well
in the long term, different material specs.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
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Julian B
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 posted on 25/3/07 at 04:23 PM |
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Turbocharging is somthing that you should read up on before you start. If you get it wrong you will spend a huge amount of time, effort and cash
getting problems that can very quickly destroy your engine.
Read this book "Forced Induction Performance Tuning" by A.Graham Bell. ISBN 1 85960 691 1 £25.00
You will find that its £25 very well spent.
It has all the calculations and explanations on how to turbocharge or supercharge an engine.
Hope that helps
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BenB
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| posted on 25/3/07 at 04:42 PM |
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The Corky Bell books on forced induction are also well worth reading....
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rusty nuts
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| posted on 25/3/07 at 05:39 PM |
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IIRC Diesel inlet manifold has no throttle butterfly as throttle operates on the injector pump
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goodall
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| posted on 25/3/07 at 08:52 PM |
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well even if i cant use the manifold with turbo on it im sure the one that is on the engine as normal will work fine just wont look as good
so the turbo might be useless then, what if i find out the output for the turbo they used on the petrol engine, then i dont need to read any book i
guess
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Digger Barnes
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| posted on 25/3/07 at 09:19 PM |
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Interesting one, I will be converting a K-Jet engine later this year to forced induction. Although I will be supercharging rather than turbo (less
pipe work for a cleaner look under the bonnet).
I will be junking the K-Jet injection and going to megasquirt with ford edis for coil on plug (I have spoken to people who have kept K-Jet when doing
the conversion and it would appear to be more trouble than its worth).
In my conversion I will be also lowering the compression of the engine from 10.5:1 to 8.5:1, using stronger con rods, (already got a stronger custom
crank in), Increasing the cooling capacity and adding an intercooler.
P.S. Also already had a TSR Pack C head fitted (oversize valves and interesting porting) with a fast road cam. Although not necessary for the
conversion.
[Edited on 25/3/07 by Digger Barnes]
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Julian B
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| posted on 25/3/07 at 10:49 PM |
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like diger has said
you should at least worry about
Compression Ratio
Ignition timing
Octain boosting
Intercooling
you also need to know or should think about
How much boost you intend to run.
volumetric efficency.
pressure ratio.
air flow of the engine.
Injector sizing.
Nock detection/anti detination protection.
etc etc
Or you could just guess, stick it on and see what happens!
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