0.7 to 0.8 boost is this the corect boost on a turbo 2000 uk.also just bort boost controller and guna turn it up to bout 1.1 boost.its psi by the way i think

 

not a wise move without a remap.

 

That'll be bar not PSI. Sounds a little low, I thought classics ran at about 0.9bar. I understand that the wastegate springs can go soft on these so it may not be holding boost.

What sort of boost controller have you got and how do you plan to up the fuelling to match the increased boost?

 

I know a Z4 runs 0.9 bar so 0.7/0.8 should be right for a UK car.

 

it holds its boost fine just sits at about 0.8.i didnt think you have to up the fuel if ur turning it up a little bit.

 

A 0.3 bar increase over your 0.8 is nearly a 40% increase, I would think twice before not compensating with the fuelling otherwise you might need to buy some new pistons

 

i had a rover turbo before and i turned boost up to 1 bar and never had any probs

 

what would be a safe amount of boost to turn it up then with out increasing fuel.if i have to increase fuel whats the best way to do it

 

Remap.

 

im saving up for a remap just wanted to see if i could up it abit with out adjusting anything

 

You could, but for the small gain you will get, it won't be worth it if you end up with a £2.5k+ bill due to it running too lean.....

 

will the boost controller come in handy when its been remaped then

 

IMO no as your car will be mapped for the highest boost available with a level of safety

 

same thing mate ive got an import upgrades are exhaust air filter apexi fc commander ect and mines only running 10psi seems nansy to me or is this about right have electronic boost control but if i turn the boost up anymore it pops bangs and hesitates so i never do ;-(