how do you know when your car is over boosting and fuel cut
cheers scotty

 

you will know coz it feels like you have hit a brickwall!!!!!!!!!!!

 

whatyear model (my????) what boost you running???

 

its my mate he has full decat and back box, kn filter, uprated fuel pump, iriduim spark plugs, and has been going on about screwing the actuator up???
its a 98 uk turbo wagon
he doesnt really have a clue also he has not had a remap

 

he took his car up the quarter mile the other day and was getting 14.1 and was moaning as he was getting 13.9 just with exhaust, but it does feel more grunty, if theres such a word, my english is crap probaly something to do with being scottish

 

if its hitting more than 1 bar as my98 are limited to 1 bar, well fuel cut you will need a fuel cut defender fitting just dont go crazy with boost though!! safe is 1.2 bar anymore and it will need mapping, i have for sale a mbc (manual boost controller) but you really need the fcd 1st
hope this helps gerry.

ps dont be winding actuator up have you anything to monitor engine knocklink lambda link egt gauge boost gauge etc???

 

Does he have a boost gauge?
Has he "adjusted" the actuator arm?
0.2 of a second isn't that much to worry about, you can loose that in a launch or just one gearchange.....

 

On standard ECU, my MY98 used to hit 1.1 bar. Using an electric boost controller, you can safely hit 1.2 bar. I took mine to 1.3 bar before hitting fuel cut. To be fair, increasing the boost any higher on standard turbo will not benefit. As Scoobygez recommends, get some engine monitoring tools. At least get a boost gauge and knocklink.

 

just back in, cheers for the info, i take it he is cheating death with altering his boost without having a gauge

 

yes he is!!! dont mess with what you dont know about simple as that.