OcUK Trackday: Donnington 30th October - £139 Full Day (Open Pitlane)!!

Clarkey · 10 Sep 2012 at 23:05

breadturbo said:
What's the noise the porker makes when he changes gear?
Kinda sounds like a wastegate, but i thought gt3's were n/a?

You know a wastegate is in no way similar to a dump valve, right.....

Simon · 10 Sep 2012 at 23:19

That GTR killed his tyres! Rubber flying off them.

Gibbo · 10 Sep 2012 at 23:40

Simon said:
That GTR killed his tyres! Rubber flying off them.

Issue with track days, removing the rubber from your paint work. Though GTR was kicking up some rubber or shredding it's own tyres for sure.

It's stock GTR, but driver holds a race license and according to Ade in the GT3 he's handy. But Ade was really kicking his ass in braking areas, the GT3 by the way is a 996 GT3 MK1 with a pretty hardcore track GEO. Ade is a good driver too and fearless as well, being on a few drives with him and he goes Donny often, mental guy.

breadturbo · 11 Sep 2012 at 02:23

Clarkey said:
You know a wastegate is in no way similar to a dump valve, right.....

Yep I do, it just sounds very similar to my old r34 with external wastegates.

Jonnycoupe · 11 Sep 2012 at 11:47

breadturbo said:
Yep I do, it just sounds very similar to my old r34 with external wastegates.

Which is basically a bypass to the acoustic muffling of an exhaust.

Screamer pipe, active exhaust or exhaust manifold with a hole in with have similar results.

breadturbo · 11 Sep 2012 at 14:34

thats what it was, see the front wheel

Clarkey · 11 Sep 2012 at 14:39

Screamer pipe, yep. Makes a heck of a noise when it's wide open at full boost, but none with the throttle shut, like when changing gear. That porsche makes no similar noises to a screamer at any time though, I don't get the comparison.

breadturbo · 11 Sep 2012 at 14:52

so what would you say is the noise at 4.30 onwards when he changes gear at high rpm?
Gearbox?

NathWraith · 11 Sep 2012 at 14:57

that a GTST?

paradigm · 11 Sep 2012 at 14:57

breadturbo said:
so what would you say is the noise at 4.30 onwards when he changes gear at high rpm?
Gearbox?

I hear no such noise at all?

There is something rattling in the cabin at 4:30, but after that there is nothing even resembling anything other than an N/A engine revving up and down.

:confused:

ScoobyDoo69 · 11 Sep 2012 at 14:59

I can hear the noise breadturbo is talking about.

Clarkey · 11 Sep 2012 at 15:00

what has a screamer got to do with changing gear anyway? Housey already said that it is just induction noise. Shut the throttle at 8k+ and the engine is gasping for air hard, you can hear it in this probably due to the engine location.

breadturbo · 11 Sep 2012 at 15:10

It's a similar noise to what the r34 used to make when changing at med rpm, say 6000, and leaving 20% throttle on.

Clarkey · 11 Sep 2012 at 15:20

compressor surge then, nout to do with a wastegate.

NathWraith · 11 Sep 2012 at 15:37

Clarkey said:
compressor surge then, nout to do with a wastegate.

I see this term used a lot on dump valve/ blow off valve videos on youtube.

Apparently a fluttering BOV sounds quite similar to compressor surge.

Simon · 11 Sep 2012 at 15:50

A fluttering BOV will be due to compressor surge anyway

ScoobyDoo69 · 11 Sep 2012 at 16:13

So there might be a slight problem with my attendance.

I sent my turbo off for a bit of upgrade work to be done to it, and it would seem that it has been lost or stolen. I'm guessing stolen.

I have no idea how long this will take to resolve, whether they find my turbo, or reimburse me for the insured amount.

Currently fuming.

Clarkey · 11 Sep 2012 at 16:17

stolen turbo, wtf? Hope it gets sorted in time, that sucks :/

ScoobyDoo69 · 11 Sep 2012 at 21:27

Shouldn't be too much of a problem, I'll buy another VF35 and get the same done to it that I had planned.

mjt · 11 Sep 2012 at 21:31

You seem to be very calm about this, or the smiley is you grinning through gritted teeth

Hope it gets sorted ASAP!!

Who was the turbo shipped with?