ALFAGTV6.COM

Micke · Post by **Micke** » Thu Feb 07, 2008 10:48 pm

My 2.0 is at 107 dB with one "muf". With 110 allowed it would be tricky without one

MD · Post by MD » Fri Feb 08, 2008 1:40 am

....sheit !! Still no exhaust system today. Got the tow truck all ready and booked. Even roped in the Missuz to pay the guy when it arrived 'cause I was at work all for sweet F. A.

They have made a start and dropped tools after one of the fitters had and accident working on another car and so the one guy left just had too much on to finish it. All fine and dandy but..8 days to go ( I need to drop a big goldie right here but I know Zamani is gonna be on my case so I will be good. Got enough of a hidding for Bazzas muf joke)

....please be quiet for a moment, I am counting sweat beads..

...er Jason, the first event is on the 16th. As for no mufflers, I thought the noise limits were set at 90dB(A) which is a real wank 'cause most Alfa induction noise is more than that.

Here's a pic of the office..

Micke · Post by **Micke** » Fri Feb 08, 2008 2:01 am

Don't think but check!

How much and how it is measured.
And I'd seriously recommend doing it BEFORE building the exhaust.

GTV27 · Post by **GTV27** » Fri Feb 08, 2008 10:43 pm

Mike you should be right with a large straight through resonator and maybe a hotdog if it barks too much (geddit?).

I think the noise limit is higher than 90 - maybe 95, but I've never seen it tested anywhere.

Good luck with the first run. I'll be out at Morgan Park that weekend, so will have to get the report on line.

Rookie ROX · Post by **Rookie ROX** » Fri Feb 08, 2008 10:59 pm

The dB limit as per CAMS standards is 95db. However, if you want to run at Lakeside any time, they've got a strictly enforced 90dB which is the legal street limit.

According to the CAMS manual, it's no higher than 95dB when measured 30m from the track edge - http://www.camsmanual.com.au/pdf/genera ... B_Q108.pdf

Be wary that general testing (by the police and what not) though is at a 45 degree angle at a distance of 500mm at about 4000rpm and the level on throttle release - http://www.ntc.gov.au/filemedia/Reports ... pt2006.pdf

ROCK ON
R~R

MD · Post by MD » Sat Feb 09, 2008 3:55 am

Thanks guys for the figures. In any real sense, the actual difference between the sound intesity of 90 and 95 db(A) is sweet F.A.

Jason, I've heard some stuff out there at Morgan Park that is WAY beyond that ie. in the region of 135db(A) !! So yes its getting some attenuation but absolutely minimal to be sure.

...no exhaust today. But hey I got a complete new cut down wiring loom instead, ooh yeah! Installed my alloy overflow tank and oil vapour condensor tank, fuel pump, alternator, all hoses and filled up with coolant to test it all. It's all good.

So now I have fuel, electrics, brakes, front suspension only,no exahust,coolants and lubricants in. Next week should see exhaust done, rear suspension in and all of it set up and a modified clutch slave fitted.

..hopefullynext week the Dutch post office will be kind to me and deliver the exhaust cam dizzy driver part..

..gonna be tight...(no wise cracks Bazzarooney)

Barry · Post by **Barry** » Sat Feb 09, 2008 10:27 am

Aw gees..I had such a good one lined up...

Mike,You got them 30l bars in the racer?

MD · Post by MD » Sat Feb 09, 2008 1:46 pm

Hahaa

If you mean the front suspension torsion bars, the answer is YES. I have combined them for a front spring rate equivalent of 600lbs by using your bars and some Eibach coil overs, re-valved Koni yellows, modified top and bottom arms, moded castor rod, revised steering arms for bump steer , no bump stop .

Experimenting with sway bars so can't say what the final set up is and that goes for a lot of the changes to the car I suppose. Many of them are unproved so let's hope they work well, otherwise, you know the deal...

Maurizio · Post by **Maurizio** » Sun Feb 10, 2008 1:13 pm

And still alot of talk and no pictures

OzMidnight · Post by **OzMidnight** » Sun Feb 10, 2008 1:14 pm

What does your car weigh in at? Apparently mine came in at 849kg ,minus driver but I've removed a little since then. I'd like to remove a lot but spaceframe setups are rather costly!!! It's running 350lb springs on the front coilovers, I believe, with a recommendation in the notes from the previous owner about trying 450lb springs. No idea on the rear spring rates or the sway bar sizes as I've been too slack to measure them.

Giuliettaevo2 · Post by **Giuliettaevo2** » Sun Feb 10, 2008 1:52 pm

849 kg

that's really impressive. do you have a rollcage filled with helium?

OzMidnight · Post by **OzMidnight** » Sun Feb 10, 2008 6:28 pm

That's going on the numbers provided by the previous owner. Interior is very stripped, has fibreglass bonnet and rear hatch, with plastic windows.

MD · Post by MD » Mon Feb 11, 2008 1:49 am

When you were a kid and your mum & dad presented you with a new pair of rubber boots so naturally you had to try them out on all kinds of puddles cause now you were aqua immune? That is until you had a crack at that small insignificant puddle but instantly wound up in mud and yuck up to your nuts?

Building race cars is a lot like skipping puddles in rubber boots..you just never know when you're up to your nuts in it..

..no exhaust today..!#$%##!!@&^^**%$^# !!!!

MD · Post by MD » Tue Feb 12, 2008 4:13 am

What's the saying? Have exhaust will travel?
Yep got exhaust but it is so low, I need another pair of wheels under it to go over the bumps! Gotta raise the height of the car to deal with it. Moocho dissapointo..

So now the suspension crowd are trying to wrap up their part. Should have it back in 2 days. I'll believe it when i see it.

..and with all this hussle, would you believe we are having unseasonal rains and the week -end is forecast to be heavy rains. Like, far out man..

.might need to those gum boots after all...

Dennis · Post by **Dennis** » Tue Feb 12, 2008 4:38 am

Psssst MD! Racetracks don't have bumps, just curbs. And you don't want to over them with your exhaust.

Still no sign of your exhaustcam thingy