Turbo boost pressure

[hiltonig]

Anyone know what boost say low pressure turbo makes against a normal turbo ???how does turbo compare against supercharger pressure ? Any ideas chaps ?

[Mark_S_24]

Not sure if this helps, but my Low Pressure Turbo for my MX5 runs about 5 or 6 PSI.
Which adds about 40 to 50 bhp to a 120bhp engine
I can't give exact figures as I only rolling roaded it when it was at 9 PSI & giving 208 BHP, funnily enough I turned it down :-)

HTH

Mark

[Geoff Ashcroft]

My top two low pressure turbos only generate 50psi, then they feed boost to the 'normal' one at the bottom which pushes this up to 90psi boost - hope this helps. Can't get it to fit under the bonnet of my Tam though....

[mrmr96]

Standard Evo boost on the 789 is about 20psi. Mine runs 25psi on the stock turbo. Some people run 45psi on aftermarket turbos.

[roysum]

Geoff Ashcroft said:

My top two low pressure turbos only generate 50psi, then they feed boost to the 'normal' one at the bottom which pushes this up to 90psi boost - hope this helps. Can't get it to fit under the bonnet of my Tam though....

LOVE IT !!!

R