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Home > Help Needed / General Tech Chat > Mini hillclimber 1380cc

Sprocket

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Preston On The Brook

5th Oct, 2016 at 02:42:05pm

Do you have a mechanical boost gauge fitted or are you relying on the MAP sensor?

What MAP sensor are you using?

Have you tested the MAP sensor goes full scale with pressure and vacuum?

The compressor housing is usually a bit higher pressure as all the pipework and intercooler after it create a slight pressure drop.

On 26th Oct, 2004 TurboDave16v said:
 Is it A-Series only? I think it should be...
So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'...


On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........

Barrieri

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5th Oct, 2016 at 02:49:21pm

I'm using the pre-installed 3Bar MAP sensor on the MS3x and yes I am also using a mechanical boost gauge, however they are both tapped downstream of the throttle body.

I will try and tap the mechanical boost gauge upstream of the throttle body first thing.

Barrieri

307 Posts
Member #: 11231
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5th Oct, 2016 at 02:50:39pm

With regards to modifications, what do you recommend ? Since I'm on a limited budget I should do the most vital things first and progress by time.

wil_h

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Betwix Harrogate and York

5th Oct, 2016 at 06:09:50pm

MAP and Boost should be taken from after the throttle as you have it.

Why not just get the boost right and use it as it is. After a few events you'll know where you need to spend your money.

Here'sa guide I wrote a few years ago to starting hillclimbing

http://www.hillclimbandsprint.co.uk/docs/g...tartedguide.pdf

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.


Barrieri

307 Posts
Member #: 11231
Senior Member

5th Oct, 2016 at 06:16:10pm

Thanks Wil, I really appreciate your help guys. I'll have a read at this and also trybto solve the boost problem.

Another idea that springs to mind is that I may be losing too much exhaust flow from the the small AFR sampling pipes I have routing the inners and outers upstream of the turbine to downstream of the turbine chambers. I will try and blank them off for a moment and see if it makes a difference.

Barrieri

307 Posts
Member #: 11231
Senior Member

12th Oct, 2016 at 04:14:10pm

Any of you guys ever bought from APT fast ?
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