ever since i bought my99 uk turbo there has been an issue with the boost first it would only boost to 0.5 but 2.0 in fifth gear then i had this problem fixed and the boost set at 1.3 but now it wont hold it for more than a few second when in fifth, is this because the exhaust gasses are restricting it or is there more serious problems

 

bump

 

car?...spec?
what is the boost set to?

 

turbo 2000 with a 3" magnex down pipe joinin a 2" half inch thats it really. boost is set at 1.3

 

1.3 is a bit high for a standard UK Turbo intercooler is it not

 

not no really thats just what the garage set it to, they said it should be running that much anway

 

a uk turbo should be running about 0.8 of a bar dude, i got my old one mapped by andy.f and he only set it to 0.9 due to the crap interboiler on the UK Turbo

ask about but IMO 1.3 bar is a tad too much for your set up

 

thats way to high running standard IC, i had a boost controller fitted wiv a FMIC and upped to 1.2, set to this because the standard ecu boost cut is set to 1.25 AFAIK. So unless u have FCD u would never even c 2.0. would he????