Sprint Cold air Intake - Alfa Romeo Forum
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Sprint Cold air Intake

Greetings from Oz,

Well it's nearly a year since we arrived in Perth from the UK.
You may know that I brought my Sprint over with us, but to be honest the arrival of our 2nd daughter has meant that she hasn't been used much.

But the time has come to get her fighting fit again. The biggest problem I've got is the ambient temperature. It was 30 deg C on Wednesday this week and she doesn't run well when it's that hot.

I've got twin K&N's on her which probably aren't helping as they are pulling in hot air from the engine bay.

Has anyone set up a cold air intake on a boxer engine ?
What sort of ducting is best ?

Any help gratefully received.


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Re: Sprint Cold air Intake

Didnt you keep the original air filter box? I actually think its quite a good design if opened up a bit at the cold air intake and has hot air intake for winter too.

I guess it doesnt have quite the sound of the twin K&N's though

When I lived in the UK I ran twin K&N type filters on my Sprint but couldnt live with them. Even in traffic the carbs got too hot, acceleration was rough and engine ran hotter than standard. I refitted the standard airbox and just open up the cold air intake to flow a bit more air.

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Re: Sprint Cold air Intake

a year since you went, doesn't time fly
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Re: Sprint Cold air Intake

Originally Posted by kevjtd View Post
a year since you went, doesn't time fly
My thoughts exactly Kev
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Re: Sprint Cold air Intake

The Alfa tuner Nick Humphrey had cold air boxes on his 33 racer. The carbs had a base plate which extended about 50mm in all directions around them. The carbon fibre air boxes were fixed to the bonnet so that they mated up with base plates when the bonnet was closed. I think that there was a layer of foam to make a seal between the two.
The cold air hoses (about 100mm dia) were led forward to behind the grille to meet the airflow.
Hope this helps,
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air , cold , intake , sprint

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