110 db on T350c , No tracck day for me!
110 db on T350c , No tracck day for me!
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Discussion

mr lock pick

Original Poster:

536 posts

242 months

Sunday 13th January 2008
quotequote all
Hi all

I drove to Brands today to get a db check on my T350C with a TVR Power sports exhaust. I was asked to hold revs at apprtox: 5000rpm and she recorded a whoping 110db.

Max db on most circuits is 98db-101db with very few tracks allowing 105db. He then asked me to rev to 3500rpm and she recorded 105db, just o.k to run on track.

Just curious how many other Tiv owners get on track without bolting on these mad huge ugly silencers?

The good news is that nearly 90% of people in the pits with all types of super cars were more intrested in the Tiv. What a buz!

They will have to wait for my Tiv to whoop their ass! Look forward to replies on db subject.

bobd

973 posts

249 months

Sunday 13th January 2008
quotequote all
Noise does not equal power!
I think you will find that with a standard exhuast your Torque will be better. Just change the diff to a decent ratio 3:73 or 3:91 and you will be legal and quick.
Just ask Daftlad!
Noise for roads and attention as against well set up for track and speed - times will prevail.
When was the last time you laughed at a flue terminal from a Saxo - noise and slow!
Attention to detail and engineering principles is the key. You will be faster with good geometry and proper tyres so forget the noise. 99db is still loud

mr lock pick

Original Poster:

536 posts

242 months

Sunday 13th January 2008
quotequote all
Dear Mr Bobd

Whilst I value your opinion that a well set up car and a good driver does equall better lap times, I think your missing the point. I did not state that noise equals power. All I was asking was how Tiv owners get past the noise test with so many of us having non standard exhaust's fitted to our cars.

Replies to the db test question will be welcome, not a lecture on setting up cars.

Don,t take offence!

softtop

3,172 posts

276 months

Sunday 13th January 2008
quotequote all
mr lock pick said:
Hi all

I drove to Brands today to get a db check on my T350C with a TVR Power sports exhaust. I was asked to hold revs at apprtox: 5000rpm and she recorded a whoping 110db.

Max db on most circuits is 98db-101db with very few tracks allowing 105db. He then asked me to rev to 3500rpm and she recorded 105db, just o.k to run on track.

Just curious how many other Tiv owners get on track without bolting on these mad huge ugly silencers?

The good news is that nearly 90% of people in the pits with all types of super cars were more intrested in the Tiv. What a buz!

They will have to wait for my Tiv to whoop their ass! Look forward to replies on db subject.
Some people make the choice to re fit the original system if they intend they do tracks or fit the silencers. If you were to go on the track on a regular basis you probably would not buy something that would affect your track time.


Targarama

14,785 posts

312 months

Sunday 13th January 2008
quotequote all
They either re-fit the standard rear silencer system before the trackday, not too hard to do, or use muffler thingys.

However, you'll find that most regular track addicts don't have 'sports' exhausts in the first place for the reasons already quoted. Some sneak by the sound tests - less revs than asked for etc.

Pharoah

359 posts

298 months

Sunday 13th January 2008
quotequote all
Well you are probably limited to noisy trackdays only or getting a set of noise reducers for the pipes.

You could try this: Don't rev it to 5000 - rev it to 3500 instead when they are doing the noise test - as they are not looking at your rev counter how will they know? I did this with my Sag at Bedford and just got on. I think the limit there was 101db and I just passed with my standard system. However on the Sag they can only measure one exhaust as they go out on opposite sides laugh

bren.wright

184 posts

251 months

Sunday 13th January 2008
quotequote all
Can you get mufflers that will fit the TVR power silencers to quiet them down a bit?

yanmar

276 posts

281 months

Sunday 13th January 2008
quotequote all
a c t will make you track day silencers for power sports exhaust, about £90 i think. as said earlier if you do track days you cannot be loud, even on loud days there is normally a105db limit .

swanny71

3,556 posts

238 months

Sunday 13th January 2008
quotequote all
Glad to hear the Tiv caused a stir in amoungst the exotica.
How about you put the standard exhaust back on just for trackdays? Takes me about 1/2 hour to swap over.


YI8TVR

387 posts

236 months

Monday 14th January 2008
quotequote all
You lie and tell the track marshal that you have just had a new engine and you cant run it past 4000rpm or you get an active tail silencer which slots inside your tail pipe which will only open fully once you get above 4500rpm which will knock off about 10 decibels below that.

Or go to Goldtrack trackdays on there Noisy days.

Where there's a will there's a way.

sidewayz

2,681 posts

270 months

Monday 14th January 2008
quotequote all
Sympathetic marshalls work well.I have a Sports Exhaust and wheeled up at Goodwood for my traditional end of year run.They asked me what it reved to and I claimed 5.5k and the didn't bat an eyelid bless them,also looked away as I revved the engine. I just squeeked through as I was right on the limit and they then briefed me on where the test points were on the track so I could back off in good time.
Turned out the man with the meter was a hard core TVR fan.

Top bloke!

P.S. Will be buying muuflers though just in case.

Harrow_tam

514 posts

312 months

Monday 14th January 2008
quotequote all
Sympathetic marshalls will let you on the track but the static monitors around the track are controlled by the local council, who will take you off the track if you exceed their limits.
Nick

bobdylan

577 posts

240 months

Monday 14th January 2008
quotequote all
i failed at coft , rev to 5k she said , i got too 2.5k before she said stop you failed .... oh bugger.
as for car set up ? if the exhuast i have fitted cost me 50bhp id still keep it , pop pop brrrrrrrrrm !
brilliant , also the smiles that come on peopls faces who turn to look at the daft corsa to find its a tvr.
act do bolt on race cans , its my plan b4 i take it to the track next

YI8TVR

387 posts

236 months

Monday 14th January 2008
quotequote all
bobdylan said:
i failed at coft , rev to 5k she said , i got too 2.5k before she said stop you failed .... oh bugger.
as for car set up ? if the exhuast i have fitted cost me 50bhp id still keep it , pop pop brrrrrrrrrm !
brilliant , also the smiles that come on peopls faces who turn to look at the daft corsa to find its a tvr.
act do bolt on race cans , its my plan b4 i take it to the track next
Croft has a anti track mob like Castle Combe. Whats funny about the Croft mob is that they are based next to the airfield hehe. Last year at Croft I parked the trailer at the Chequers Inn and some very nice local started giving me a lecture on how annoying and anti social the track is completely forgetting the revenue the track brings to the local area, When I mentioned it at the bar to the landlord he explained that she has only lived there 5 years. Each to there own I guess.

All marshals are on our side, If you think or know you are on the limit or over take something to get the noise down, so long as you've tried they are mainly forgiving. There are a lot of aftermarket silencer out there without your car looking like a wheelbarrow. I have no silencers or cats whatsoever and I can get the db below 105 which is good enough on most tracks.




bobd

973 posts

249 months

Monday 14th January 2008
quotequote all
mr lock pick said:
Dear Mr Bobd

Whilst I value your opinion that a well set up car and a good driver does equall better lap times, I think your missing the point. I did not state that noise equals power. All I was asking was how Tiv owners get past the noise test with so many of us having non standard exhaust's fitted to our cars.

Replies to the db test question will be welcome, not a lecture on setting up cars.

Don,t take offence!
Not a lecture just an observation as to why you would wish to sneak past the noise test. The standard exhaust is torquey and acceptable to track day officials and a piece of p*** to swap. Better still come to our trackdays at Kirkistown where nobody gives a monkeys about the noise test as my old T350 proudly displayed with TVR Power cans on.
Whatever you decide I hope you enjoy it, and seriously you would be most welcome to join us at Kirkistown.

bade90

20 posts

228 months

Monday 14th January 2008
quotequote all
hi mr lock pick. presume it was your green t350 there on sunday. didnt see any one near the car when i 'kept' walking by coz did want a chat. was down there for my first track day. novice of course in my nissan 350z. good day. a tamora turned up later on getting over taken by all the porsches was very annoying. oh well i'll save them for when i get a t350
regards.

dickieandjulie

1,068 posts

286 months

Monday 14th January 2008
quotequote all
HI

I recently changed from a wedge to a Tamora so also turned up at Brands to get tested yesterday, unfortunately they had packed it all away and wanted to charge me so I am going back next week. 110db in interesting though, think mine may be loud, it has a JP system fitted. Not sure about the helpful testers though! At brands and Oulton Park - tested in the open, 98db no problems, 105 days both times, Goodwood and Castle Combe both test beside buildings however and I tested 104db there so got sent home from Goodwood, had cans for Castle Combe though but they only just got me in.

Will be ordering some cans for the Tam.

Jasper Gilder

2,166 posts

302 months

Monday 14th January 2008
quotequote all
I had my 3000m tested pre the Rock, came out at 110db so we repacked all the silencer boxes to get it down to 98db ( still bloody noisy inside though) Then - there were no checks!!

I do a few trackdays at Guadix - no noise restrictions there.....

dickieandjulie

1,068 posts

286 months

Thursday 17th January 2008
quotequote all
Spoke to ACT about track cans but I have a JP exhaust with rolled edges so the standard cans cannot fit over the ends. I do not have the original exhaust.

I have previously seen on tamoras some ends that fit inside the exit pipes, can anyone advise where to get these from?

Thanks

Richard

V-GOM

1,650 posts

257 months

Thursday 17th January 2008
quotequote all
dickieandjulie said:
Spoke to ACT about track cans but I have a JP exhaust with rolled edges so the standard cans cannot fit over the ends. I do not have the original exhaust.

I have previously seen on tamoras some ends that fit inside the exit pipes, can anyone advise where to get these from?

Thanks

Richard
I've got a standard system that has done only 1000 miles if you are interested.