996 GT3 RS noise at combe

[BertBert]

I have asked in the PH porsche forum, so apologies for anyone who has seen the question twice. Asking here as there is mixed opinion there!

Anyone any experience of whether the above car will pass (100db) at combe? It's boggo standard. First time for me with it on track, so no idea of what noise it makes.

Thanks
Bert

[phatgixer]

With std exhaust you'll be fine. Mine made 98db two weeks ago up there.

Just make sure it's warmed up.

Edited by phatgixer on Friday 9th July 01:41

[BertBert]

Thanks pg.
Bert

[PetrolTed]

Really? When I've been tested at Brands, I'm easily 101+

Good news if that is the case though as I quite fancy Combe later this year.

[SpeedFreakDave]

I heard they measured at 103 odd???

[phatgixer]

SpeedFreakDave said:

I heard they measured at 103 odd???

Most mine has ever measured was 101 at Oulton when it was cold and the outside temp was about 5 degrees. Once the car is warm it seem to quieten down. It is miles quieter than a 997.

[PetrolTed]

Mine's never been that quiet. Brands has been 101 at err... not quite 3/4 revs, I wouldn't expect to get onto Bedford any more either.

[flemke]

Always helps to dip the clutch during the test.

[BertBert]

The revs are clearly important- the missing piece? The combe webby says 4500 rpm. That's way lower than 3/4 or even 2/3.

Does combe actually test at 4500?

Bert

[phatgixer]

BertBert said:

The revs are clearly important- the missing piece? The combe webby says 4500 rpm. That's way lower than 3/4 or even 2/3.

Does combe actually test at 4500?

Bert

Yep, I think they do.

I think it was 5,200 at Oulton

[BertBert]

PetrolTed said:

Mine's never been that quiet. Brands has been 101 at err... not quite 3/4 revs, I wouldn't expect to get onto Bedford any more either.

What revs did you measure at Ted?

Bert

[PetrolTed]

Tracks normally ask for 3/4 max revs. I've sometimes complied and sometimes kept it a tad lower, but I don't recall ever being measured at less than 101dB.

[Chuggaboom]

Yes, Combe and all MSE events are tested @ 4500 revs....not sure at what distance tho....best I can recall is 1 or 1.5m....Combe will have it on their website...as no doubt MSE will too.

[BertBert]

They are both 0.5m, but 3/4 max revs at Brands and 4500 at Combe.

I have hope!

Bert

[phatgixer]

If you have trouble, just speak to Adrian (he will likely be the chief steward) and he will get you on.

Keith Flint and I were both out (he has an identical 996 RS to mine) with no problems last year.

[davepoth]

BertBert said:

The revs are clearly important- the missing piece? The combe webby says 4500 rpm. That's way lower than 3/4 or even 2/3.

Does combe actually test at 4500?

Bert

Yup, 4500. Sound testing guy always takes the piss because my car doesn't have a rev counter. This year he also remarked that my car was so quiet that the wind was affecting the reading.

[Matt_N]

Combe's meter is quite well known for reading a bit on the high side so if people have been getting 100ish db's at other circuits I could see it not passing at Combe.

They won't just let you on either, they'll point you in the direction of Merlin Motorsports for a nice silencer to bolt on the end of your exhaust(s).

[4parajon]

Ive no idea what the RS produces noise wise but I was out on Coombe's track last week with a 58 plate Turbo model and that obviously passed noise as it was'nt sporting one of Merlins £50 "mufflers" altho I did see a cerbera out there that had been fleeced for 2 of them, one for each tailpipe.

[seefarr]

phatgixer said:

If you have trouble, just speak to Adrian (he will likely be the chief steward) and he will get you on.

Keith Flint and I were both out (he has an identical 996 RS to mine) with no problems last year.

I failed the first noise test in my Evo there because it was banging off the launch control at 4k (which I didn't even realise I had until that moment). The tester realised that I was fairly devastated so told me to go for a drive and heat up the mufflers. He let me test again and this time I didn't let it hit the limiter and all was well. A very nice man

[SpeedFreakDave]

just came back from brands and was chatting to a guy with an RS and he said he never has issues and has had his for 5 years as a track car!

Heres a question.....996 GT3 RS or 996 Mark II GT3 with manthey suspension, manthey forged magnesium wheels, RS fin, cup spoiler, RS brake cooloing......which is better?...