Marf wrote:ashley wrote:Marf wrote:I think your hotside is too small personally..
Then he'd see EGT's climbing rapidly as boost was increased wouldn't he?
Not sure, if boost cannot rise as the turbine can't spin any faster due to the hotside being too small then would EGT rise?
the exhaust gasses can't escape fast enough through the turbine and stay longer in the exhaust manifold. Therefore the EGT usually rises.
But as I only did a quick pull in third to redline and not drove 2 minutes at 6000+rpm I am not sure, if this is representative.
Anybody else voting for the cams?
The thing that bothers me is, that everything is fine under 0.8 bar... and that the car has no ditch in the torque graph. I thought this would exclude the cams. Because, if they are wrongly dialled in, then the idle would be terrible and revving might be nearly impossible?
And why is there a mark on the cams, that tells, like the stock mark where the cam should be mounted?
As far as I know are JUN camshafts machined from new and not reground ones.
next wild guess is the fuelling... but fuel pressure rises from 3.5bar to 4.5 bar when under load and acts simultaneously to the boost curve. So I don't suspect a problem here as well