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Home > Help Needed / General Tech Chat > Setup: where to put the throttle

Arnold

4 Posts
Member #: 11969
Junior Member

26th Jan, 2020 at 10:42:47pm

Hi there

I have an Austin Healey Sprite 1275 with a Mercedes Kompressor. I put the blower on the alternator side. The setup is:

- airfilter > throttle > bypass valve > blower > intercooler > inlet manifold (with 4 injectors)

Downside is that I have an enormous lentght of piping with all risks of 'false air'.

Where is do you guys put the throtlle (also to be able to close it when needed)?

wil_h

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9258 Posts
Member #: 123
Post Whore

Betwix Harrogate and York

27th Jan, 2020 at 04:23:23pm

Should be bypass valve not be after the blower before the intercooler?

How long is the pipe? If you worked out the capacity of it and think about how quickly that would be emptied even at low RPM, it's probably not an issue.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


slater

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1030 Posts
Member #: 1291
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Suffolk / Birmingham

27th Jan, 2020 at 09:09:58pm

You can put the throttle after the blower but obviously you need a big bypass valve for when engine is on over run.

If you have the throttle before the blower you dont need the bypass valve but throttle response may be a bit sluggish in comparison.

I believe most people run the latter.

Arnold

4 Posts
Member #: 11969
Junior Member

27th Jan, 2020 at 10:46:48pm

Right, it appears it is a bit sluggish. Total length op piping must be 2,5 meter ...

wil_h

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9258 Posts
Member #: 123
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Betwix Harrogate and York

28th Jan, 2020 at 09:22:34am

2.5m, yikes. Got any photos? I can't imagine how that's possible, even under a Sprite bonnet.

Fastest 998 mini in the world? 13.05 1/4 mile 106mph

www.twin-turbo.co.uk

On 2nd Jan, 2013 fastcarl said:
the design shows a distinct lack of imagination,
talk about starting off with a clean sheet of paper, then not bothering to fucking draw on it,lol

On 20th Apr, 2012 Paul S said:
I'm mainly concerned about swirl in the runners caused by the tangential entry.


steve1275

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849 Posts
Member #: 951
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Bromsgrove

28th Jan, 2020 at 10:53:07am

Mine must be over 2m, it's the intercooler that does it.

'Where does the engine go?'

Arnold

4 Posts
Member #: 11969
Junior Member

31st Jan, 2020 at 09:10:30am

Thx, how do I post pictures here?

shane

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2619 Posts
Member #: 1246
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Lowestoft, Suffolk.

31st Jan, 2020 at 12:56:23pm

http://www.turbominis.co.uk/forums/index.p...5580&lastpost=1
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