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Winston

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Member #: 5930
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Was wondering if anyone had a link to a good supplier of parts for SC?

Edited by Winston on 2nd Jun, 2009.


Jimster
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455bhp per ton
12 sec 1/4 mile road legal mini

Sunny Bridgend, South Wales

I assume you refering to Super charger parts? Are you looking for Kits or parts for the actual supercharger?

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On 15th May, 2009 TurboDave said:

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Winston

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Member #: 5930
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I'm really looking for parts. I have the charger, I've made my own inlet manifold.

Now I'm looking into actually powering the charger.

Oh, if you have a link to where abouts I can purchase a M45 rebuild kit - that would be most helpful.


lockfast

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Aberdeen

Not sure I am with you! What are you looking for? Pullies etc? I would have thought you needed this before you made a manifold as that is what gives you your spacing etc. So just to be clear you have an M45 and an inlet manifold - nothing else? So you are looking for a bottom pulley a tensioner some form of fuel inlet either for carb or injection? I am guessing you are bilding a suck through setup? Give as much info as you can and you will get more info back.


Winston

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Member #: 5930
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On 2nd Jun, 2009 lockfast said:
Not sure I am with you! What are you looking for? Pullies etc? I would have thought you needed this before you made a manifold as that is what gives you your spacing etc. So just to be clear you have an M45 and an inlet manifold - nothing else? So you are looking for a bottom pulley a tensioner some form of fuel inlet either for carb or injection? I am guessing you are bilding a suck through setup? Give as much info as you can and you will get more info back.


Oh dear - looks like I may have made a boo-boo then.

Here's what I have:

Eaton M45
Inlet Manifold
Induction pipe - including machined in threads for injectors

Yes, I'm going for a suck through set-up, but did consider a blow through - but i believe charge robbing is a problem.



Paul S

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Formerly Axel

Podland

If the supercharger needs a rebuild, I'm sure that it will be cheaper to get a new blower off ebay than try to repair.

You will not get away from the charge robbing issue just by using suck through with injection. The fuel slugs will get dispersed but they will still be slugs that go anywhere they want.

There are some photos somewhere on here of a supercharged and injected engine that had clearly suffered charge robbing.

Here:

Edited by Paul S on 2nd Jun, 2009.

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."


Prawn

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basingstoke

If you're building your own setup, why not go blow through? Suck through seems like such a bad idea!

the OP of the topic linked above said in another thread that he has measured inlet temps of around 100 degrees!

Mr. Prawn, the friendly Crustacean- slowly making steps towards forced induction.


Winston

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Member #: 5930
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On 2nd Jun, 2009 Paul S said:
If the supercharger needs a rebuild, I'm sure that it will be cheaper to get a new blower off ebay than try to repair.

You will not get away from the charge robbing issue just by using suck through with injection. The fuel slugs will get dispersed but they will still be slugs that go anywhere they want.

There are some photos somewhere on here of a supercharged and injected engine that had clearly suffered charge robbing.

Here:



Regarding the charge robbing - I've mounted the injectors quite away up the inlet tract, surely the fuel will follow the airflow into the cylinder that is on the induction stroke? Or have i got it totally wrong (which won't be the first time - according to wife)


Paul S

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Formerly Axel

Podland

Injcetors do not work like carburetors that feed a continuous stream of fuel into the air.

Injectors fire in short sharp bursts.

At low revs and light load the injector pulse is probably only a few percent of the engine cycle. Hence only a few percent of the air will get the fuel added.

It's hit or miss as to where that fuel will go.

It is possible to get simple injection to"work" on an A series, but if you want accurate fueling throughout the rev and load range, then there is a lot more to it.

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."

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