Helen Goff
No.1 Poster
thanks Philip,
'Pre 1974' Track Day - Silverstone
- Thread starter pmjt
- Start date
Phil will get the car details over to yo very soon.
What are you looking for as pre requisite for the early desplay?
We will be travelling from scotland and tcikets are booked so if you want my race car its available?
Cheque all sent but no confirmation yet but our man Kevlin is on the case
regards
Raymond
(Boydyrs)
What are you looking for as pre requisite for the early desplay?
We will be travelling from scotland and tcikets are booked so if you want my race car its available?
Cheque all sent but no confirmation yet but our man Kevlin is on the case
regards
Raymond
(Boydyrs)
pmjt
New member
Hi Raymond
For Silverstone, it's still being planned - but the idea is to show the evolution of the 'S' from the earliest 130bhp's, through to the first 2.0ltr 'S's and going through the 2.2 and 2.4S's including some lovely Targas - also hoping to work with the Carrera RS register to complete the evolution from start to finish. Should be a great sight [
]
Don't worry - Steve's team will have it processed quickly and there's plenty of spaces []
Philip
For Silverstone, it's still being planned - but the idea is to show the evolution of the 'S' from the earliest 130bhp's, through to the first 2.0ltr 'S's and going through the 2.2 and 2.4S's including some lovely Targas - also hoping to work with the Carrera RS register to complete the evolution from start to finish. Should be a great sight [
]Don't worry - Steve's team will have it processed quickly and there's plenty of spaces [
]Philip
Sally Ferry
New member
Helen, my 73 Sporto is 105+ ouch! with the static test, but with a box which I had to buy at Castle Coombe, down to about 103.5.
It seems to depend on heat of the engine. If it was measured on a drive by on the track, it is quieter than many of the younger cars
It seems to depend on heat of the engine. If it was measured on a drive by on the track, it is quieter than many of the younger cars
Helen Goff
No.1 Poster
don't (hopefully) think my sporto will be a problem (as long as i can warm it up first) as although its loud it's nowhere near as LOUD as my 914 which is just a big bad boy[8D]
pmjt
New member
ORIGINAL: early 911
Hope there'll be room for us T's and E's . . . . perhaps round the back[
Er, yes [8|] As the 'S' is a birthday model, the idea is to explain it's evolution - but I am planning a display of T's, E's and (you forgot them) L's [
]What I want to do is explain the difference between them - the most commonly asked question by people looking at buying an early 911.
[
]Philip
Probe gets almost inserted into your exhaust , you are asked for your rev limit, then they ask you to three-quarter boot it.
Tips: get engine hot , declutch as you rev, and see if you can position the car on grass!
These tests are really not fair on rear engine cars - but that's the way it goes.
JohnC
993turbo
Tips: get engine hot , declutch as you rev, and see if you can position the car on grass!
These tests are really not fair on rear engine cars - but that's the way it goes.
JohnC
993turbo
"Almost inserted" ie close to the exhaust.
Foregoing is done at Goodwood, one of the strictest testers . They also have three solar-powered driveby detectors scattered round the circuit, connected to the local council office, so that any boxticking zero can monitor the noise and if necessary descend on the circuit armed with mighty powers to stop proceedings.
Another sign of strictness - my beast, even with enhanced power, has standard exhausts which are very quiet, as turbo's normally are. Yet I always get a 105db sticker!
Dont let it put you off!
JohnC
993turboX50
Foregoing is done at Goodwood, one of the strictest testers . They also have three solar-powered driveby detectors scattered round the circuit, connected to the local council office, so that any boxticking zero can monitor the noise and if necessary descend on the circuit armed with mighty powers to stop proceedings.
Another sign of strictness - my beast, even with enhanced power, has standard exhausts which are very quiet, as turbo's normally are. Yet I always get a 105db sticker!
Dont let it put you off!
JohnC
993turboX50
38F3E1
PCGB Member
This is the MSA guideline
"... 3/4 maximum rpm ... Measurements will be made at 0.5m from the end of the exhaust pipe with the microphone at exhaust outlet level at an angle of 45 degrees with the exhaust outlet. Where more than one exhaust outlet is present, the test will be repeated for each exhaust and the highest reading will be used. ... Measurements should be made outdoors with no large reflecting objects (e.g. walls etc) within 3.0m. ... Background sound levels should be at least 10dB(A) below the measured level."
Ian.
"... 3/4 maximum rpm ... Measurements will be made at 0.5m from the end of the exhaust pipe with the microphone at exhaust outlet level at an angle of 45 degrees with the exhaust outlet. Where more than one exhaust outlet is present, the test will be repeated for each exhaust and the highest reading will be used. ... Measurements should be made outdoors with no large reflecting objects (e.g. walls etc) within 3.0m. ... Background sound levels should be at least 10dB(A) below the measured level."
Ian.
paul howells
New member
I think you will find silverstone very helpfull with noise,i have run my st with stright through pipes no problem,and after the noise of the weekend,i think most of your cars will not be very loud even at say 108/110 db.
I have not seen a noise meter at silverstone yet.
I have not seen a noise meter at silverstone yet.
early 911
Moderator
Paul, have I heard right . . . . the 906 and ST will be joining in the track day . . . . . worth the money to see (and hear) that.
Phil
Edit: Tested the car. Averaged around 125db's across all 3 outlets [&:]. Didn't drop much when I put the caps on . . . . perhaps I'm being paranoid, and hopefully as you say this won't be an issue (might bring the standard exhaust in case mind you).
Phil
Edit: Tested the car. Averaged around 125db's across all 3 outlets [&:]. Didn't drop much when I put the caps on . . . . perhaps I'm being paranoid, and hopefully as you say this won't be an issue (might bring the standard exhaust in case mind you).
paul howells
New member
Phil you did hear correct,i am racing the 906 there on the week end also,with a bit of luck on entries etc
What silencer or lack of it do you have for 125 db?,or what nosie meter are you using.
The trick is also to say your red line is say 6400,and then stay away from the crucial cam scream,normaly around 4500 rpm.I spent a full day on the GP circuit with my st,with straight through pipes,no problems at all.
I also have a standard silencer,that we can quickly fit to get any one sorted with a noise issue.
What silencer or lack of it do you have for 125 db?,or what nosie meter are you using.
The trick is also to say your red line is say 6400,and then stay away from the crucial cam scream,normaly around 4500 rpm.I spent a full day on the GP circuit with my st,with straight through pipes,no problems at all.
I also have a standard silencer,that we can quickly fit to get any one sorted with a noise issue.
What a good idea!
Is there a space left for a scratchy old motoring writer and his 1972 911S?
I've only just seen this and would love to be involved, especially as my latest Watching Brief in 911 & Porsche World talks about looking for trackdays for early 911s!
Peter
Is there a space left for a scratchy old motoring writer and his 1972 911S?
I've only just seen this and would love to be involved, especially as my latest Watching Brief in 911 & Porsche World talks about looking for trackdays for early 911s!
Peter
early 911
Moderator
Hello Peter, would be great to see you there.
Although it says fully booked in 'The Post' and on the motorsport website, that's because it's been booked out to the ealry gang.
I reckon there'll be spaces left (and hope so as I haven't booked yet [&:]) . . . call Paul Granger (sp.) tomorrow on 01608652911 (he's at Donnington today). He's the bloke at club office who sorts out all the track day admin.
Cheers and hope to see you there.
Phil
PS. Phil Taysom - the new early 911 Reg Sec is doing a special dispay of S's at silverstone . . . perhaps you'd like to join in with that also??
Although it says fully booked in 'The Post' and on the motorsport website, that's because it's been booked out to the ealry gang.
I reckon there'll be spaces left (and hope so as I haven't booked yet [&:]) . . . call Paul Granger (sp.) tomorrow on 01608652911 (he's at Donnington today). He's the bloke at club office who sorts out all the track day admin.
Cheers and hope to see you there.
Phil
PS. Phil Taysom - the new early 911 Reg Sec is doing a special dispay of S's at silverstone . . . perhaps you'd like to join in with that also??
I'll call Paul tomorrow.... for sure.
I'm going to be at Silverstone for the Classic weekend, but wasn't planning to be there all the time. I guess you want cars for the whole weekend.
BTW why does it say I'm a non-member next to my name. I joined the Club in 1978 and now I'm an honorary member! (I said I was scratchy...)
Peter
I'm going to be at Silverstone for the Classic weekend, but wasn't planning to be there all the time. I guess you want cars for the whole weekend.
BTW why does it say I'm a non-member next to my name. I joined the Club in 1978 and now I'm an honorary member! (I said I was scratchy...)
Peter
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