hi there can anyone tell me what would be a sensible increase of boost on a stock engine also need it in bar as i'm thick and don't know how to convert PSI into bar

 

many thanks mark

Well Stock Turbos will max out at 15psi which is pretty much 1bar of boost (1bar is actually 14.5 but you catch my drift)!Condition of the engine will determine it really most people will probably say 0.7-0.8 bar which is still quite a punch! Higher the boost the quicker your turbos will wear out!So if they are old turbos may need to be gental with them! :) Hope this helps although im sure someone will bust my post in half XD

it doesnt sound much but 14.5 psi roughly one bar - standard full boost 9psi or .63 bar

if you tweak it just a little to 12psi or .84 bar probably better due to less chance of detonation

still gives you healthy 30% extra boost .....

Will need it chipped if running over 11-12ish psi though.

Mine reads in hg/mm2? Something like that anyway. What is standard boost in this scale?

1 PSI = 0.07 bar

 

Stock boost

9 PSI = 0.62 bar

 

Safty Boost

7 PSI = 0.48 bar

 

 

Not sure how this converts into other pressure measurements, google it I guess.

stock boost is 9.8psi isnt it? I thought so anyway??

7psi is standard boost 10psi extended ;)

7.5 and 9.5 ;)

7.5 and 9.5 ;)

 

ah bugger ya.

thanks for the help just need to work out how to fit

Hi!

I have a Zed (1993) with stock turbos, and it has a greddy profect with a max Boost 14.5PSI....But today in spain people tell me that it have a risk for kill the boost..

 

He tells me that a max boost for stock boost safe is 0,89 Bar (12.9 PSI).

 

What do you thing? I need to change the max boost in controller?

 

Thanks

 

Javier