EXHUAST
Turbo Mini Forums

WHEN FITTING TURBO ENGINE WHAT ABOUT THE EXHUAST?
WILL MY JANSPEED ONE FIT STRAIGHT ON ? ITS OFF A 1275 COOPER 1990 CARB MODEL

You require a turbo downpipe made by maniflow, about ?30ish available from minispeed and avonbar to name a few.

You also need a 2" exhaust system, yours maybe, it may not be depending on what exact exhaust you bought but its not hard to measure the diameter of the pipe to see if its 2" or not from the manifold back.

Mine you an 1 3/4 RC40 type exhaust is also ok, as i no cars with this on and they still make good power and run lovery with them.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

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i have been trying to find out about exhuasts as i was contimplating using a twin exit exhuast system with custom made ends for a bit of fun but do i need to keep a curtain amount of back pressure for the turbo or is it just as much can get out the better? i have read a few diffrent things so am not to sure, is a twin exit exhaust ok for using on a turbo? which is a bit like this but i belive its the play mini version
http://www.minisport.com/acatalog/info_PHBXB11S2.html

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

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i have something like that in oval made of stainless - its very nice lol

Hi,
You want NO back pressure in a turbo exhaust!
You want all the pressure drop to occur across the turbine
Therefore a 2" minimum bore.
Cheers,
Gavin :)

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cheers i thought it would be ok i just have to check the bore size

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis