OK so the new N75 didn't fix the flutter, although the boost and power delivery through the gears and the revs feel a good bit stronger and less lumpy now, so worth it for that.
Noticed something else tonight, if I just floor it from about 30 or 40 in 4th, I get the fluttering noise coming on boost and there's not so much of a kick in the back. I know 4th is a longer gear than 3rd but it still feels a lot less. However, if I floor it from about 20 or 30 in 2nd or 3rd then I get a proper kick in the back rush as the turbo spins up quickly, and it sounds normal, i.e. no flutter. If I then grab 4th and floor it again then the turbo sounds normal and *bang*, there's that slam in the seat feeling.
So I think I've ruled out N75, probably dump valve and I guess since it's working some of the time that probably rules out MAF too. Any ideas gratefully received
On the up side, the car is now clean after yesterday's wash. Car was very dusty and a bit muddy with the weather of late and the wheels and tyres were still covered in that white grease/sealant stuff from having the tyres changed a couple of weeks ago. Some before pics:
And after a couple of hours dusting, hoovering, 2BM wash, wax and tyre dressing:
Doesn't scrub up too bad I think, obviously not at the level of some of the more pampered cars on here but to be honest by the time I'd done that all that my back was done in and I wanted a beer, not sure I could be arsed claying, waxing, sealing, polishing etc. I had washed the g/f's MX-5 earlier in the day though so maybe one day she'll wash her own car and I'll be able to spend a bit more time on mine, but I won't be holding my breath...
EDIT - holy crap, just looking at those close-ups of the wheels makes the car look like it's jacked up on axle stands, I think it needs lowered soon :\
Noticed something else tonight, if I just floor it from about 30 or 40 in 4th, I get the fluttering noise coming on boost and there's not so much of a kick in the back. I know 4th is a longer gear than 3rd but it still feels a lot less. However, if I floor it from about 20 or 30 in 2nd or 3rd then I get a proper kick in the back rush as the turbo spins up quickly, and it sounds normal, i.e. no flutter. If I then grab 4th and floor it again then the turbo sounds normal and *bang*, there's that slam in the seat feeling.
So I think I've ruled out N75, probably dump valve and I guess since it's working some of the time that probably rules out MAF too. Any ideas gratefully received
On the up side, the car is now clean after yesterday's wash. Car was very dusty and a bit muddy with the weather of late and the wheels and tyres were still covered in that white grease/sealant stuff from having the tyres changed a couple of weeks ago. Some before pics:
And after a couple of hours dusting, hoovering, 2BM wash, wax and tyre dressing:
Doesn't scrub up too bad I think, obviously not at the level of some of the more pampered cars on here but to be honest by the time I'd done that all that my back was done in and I wanted a beer, not sure I could be arsed claying, waxing, sealing, polishing etc. I had washed the g/f's MX-5 earlier in the day though so maybe one day she'll wash her own car and I'll be able to spend a bit more time on mine, but I won't be holding my breath...
EDIT - holy crap, just looking at those close-ups of the wheels makes the car look like it's jacked up on axle stands, I think it needs lowered soon :\
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