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Chalkie

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Northamptonshire.

Hey guys

I got a HIF 38 & HIF 44

The 44 is going with the SC engine next year once insurence stops being knobs and charging me the earth. Do I need a spacer on my 38 with a Alloy inlet mainfold?

only one I've got kicking about is my smoothed and bored out HS4 spacer

are they needed or not?

Thanks
Stephen


wil_h

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9258 Posts
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Betwix Harrogate and York

Always good to have a spacer

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



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.


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Are 44 and 38 spacers the same?

Thanks


wil_h

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9258 Posts
Member #: 123
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Betwix Harrogate and York

No, the 44 will have a bigger hole.

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



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.


Chalkie

1909 Posts
Member #: 9764
Post Whore

Northamptonshire.

Would it make a difference if I used a 44 with a 38 carb don't really wanna fork out for 2 spacers?

sorry for dumb ass questions.


t@z

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Chester, UK

course it will

www.twitter.com/lilpinkiy


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Ah right damn. best add it to the list then thanks guys


eden7842

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1755 Posts
Member #: 8852
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leicestershire

Ive got a 38 spacer about, im guessing your not to far away

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!


Craigie-B

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Wootton Bassett

What does the spacer actually do?

On 10th Mar, 2012 theoneeyedlizard said:

Hypothetically speaking, where would you stick your nozzle?


On 22nd Jun, 2012 apbellamy said:
my wife doesn't know what.head is never mind compression ratio.


Chalkie

1909 Posts
Member #: 9764
Post Whore

Northamptonshire.




On 24th Oct, 2012 eden7842 said:
Ive got a 38 spacer about, im guessing your not to far away


I live Kettering NN16 area northamptonshire how much you want for it?


skolawn

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270 Posts
Member #: 69
Senior Member

Coventry

spaces it *wink* away from the manifold so the float chamber on the HIF or Jet on a HS is not right up against the manifold and it suffer from fuel vaporisation due to heat, also for that reason you need to make sure you use an abutment plate It think its called on a which has your locator for accelerator cable on, and also again acts as a heat shield. Spacers help also with heat soak from the manifold into the carb, and for that reason if you can find one of the rarer plastic spacers they are better.

Paul


t@z

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Chester, UK

On 24th Oct, 2012 Craigie-B said:
What does the spacer actually do?


im kinda thinking maybe a few things....

- limit heat transfer as its plastic (from manifold)
- longer runner length for air/fuel to mix
- excess of plastic lying about in those days

www.twitter.com/lilpinkiy


skolawn

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270 Posts
Member #: 69
Senior Member

Coventry

any excess 38 ones I am interested in... Katie my daughter does ministox which is standard heads and manifolds etc, so a standard nylon one is better than a standard alloy one, only fractions but in ministox fractions count...


eden7842

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leicestershire

Its yours if your heading my way mate

13.95 1/4 mile on a 2.95 fd. Carnt be that hard to beat!


Scudy23

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236 Posts
Member #: 10087
Senior Member

Very wet south wales

Simon tapped into his to take gauge readings, cant remember what gauges he said they were though.


Chalkie

1909 Posts
Member #: 9764
Post Whore

Northamptonshire.




On 24th Oct, 2012 Scudy23 said:
Simon tapped into his to take gauge readings, cant remember what gauges he said they were though.



wonder if its boost gauge? or something to how much air fuels going in? duno


t@z

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Chester, UK

you can get ones with take offs on them for boost/MAP readings etc

www.twitter.com/lilpinkiy


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.




On 24th Oct, 2012 t@z said:
you can get ones with take offs on them for boost/MAP readings etc


Don't the carb have a take off for the advance on dizzy though? mine has about 6 pipes coming off it no idea what they are all for?




Flame Red

288 Posts
Member #: 6267
Senior Member

Bristol

That's one from whatever the economical Metro was called, HLE? It had the part throttle lean-off which worked by applying manifold vacuum to the float chamber, I can't remember the details or the science of it. Anyway, that is why there are so many pipes. Perhaps you can find other uses for some of them, but you'll probably end up blanking them off.


Chalkie

1909 Posts
Member #: 9764
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Northamptonshire.

Well I know ones fuel in and over flow ones for breathes and one for vac but the other 2 i don't know one in the carb face the odd one above the over flow thanks stephen

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