boost pressure

[mdm]

evening folks, so i got a boost gauge fitted, and it peaks about 1.1bar (aby engine) and some times about 0.9 bar, i presume this is the over boost function. however by about 7000rpm the boost has dropped to about 0.5bar, is there supposed to be such a drop. i would have expected about 0.1 or 0.2 of a bar but half a bar.


thanks

Mark

[gedu]

with original turbo and injectors you are just running out of juice.

[mdm]

but should that happen on the standard car. i would have expect a .2 or.1 of bar. but a drop but a 0.5 of a bar seams a bit big

[Jamo]

Standard ecu wont hold that boost to redline it will drop like your seeing

have a look at the RR threads for graph comparisons, particularly Andy Casey's