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ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
My tuscan 2S has just been de cat.
I have removed the fibre wadding from my shark cans.
But it's still too tinny sounding. She pops and bags better than any of by previous Tivs but I need the deeper rumble (v8)
Next logical step is to sleeve the cans (simple and cheap)
If that's not right I will remove what seem to be pointless rear boxes.
If I do this and it turns out to be too loud, can the sleeve be removed from the cans once hammered into position?
Or remove the boxes first then sleeve if not the desired effect??
Trawled through lots of previous posts and it is a great talking point. Unfortunately some vids on you tube don't reflect the sound of some mods very well.
I don't want to change too much and create an ear bleeding monster that is too much on a general run out.
Decisions decisions

900T-R

20,406 posts

286 months

Monday 15th October 2012
quotequote all
Sleeving perforated silencers is not the way to go if you want a less 'tinny' sound IMO. Baffled silencers (as on most bread and butter cars) filter out the low frequencies to get the dBs down, but silencers with a straight perforated pipe surrounded by wadding ('sports' silencers) do the opposite - they filter the higher frequencies and leave the lows more or less intact.

I think the decatting is not to blame here -that just tends to make things louder), more likely it's the removal of wadding material.

ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
So remove the stainless wadding and put back the fibre one may be an option?

900T-R

20,406 posts

286 months

Monday 15th October 2012
quotequote all
Ah, I just thought you'd removed the fibre stuff with nothing to replace it.

In the case you replaced with stainless, it might have made a difference but it's a far longer shot.

ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
Yes I layered well compacted stainless strands back in. It definitely created a slightly deeper tone than the fibre wadding.
I just need deeper.
If I sleeve the cans can I remove it after if its too much? That's the one I think.
If the rear boxes get removed and new stainless pipe is welded in, that's an exercise more difficult to reverse.
????

V8 GRF

7,299 posts

239 months

Monday 15th October 2012
quotequote all
Speed 6 engines sound epic but they're a completely different animal and as a result sound nothing like V8s so if your quest is to make it sound like a V8 then stop right now and either put an LS in or sell it and buy an RV8 engined car.


ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
Perhaps my v8 comparison has throw my plight off course.
I expect the speed 6 to be different.
I am just looking for a bit more deep tone.
Noisy on here has a fantastic sound tuscan but he said its too much all the time.
So I will try little changes and see where it goes.
Going for sleeve first before rear box removal I think

m4tti

5,488 posts

184 months

Monday 15th October 2012
quotequote all
Your right Noisys car does make an awesome sound he was on the tunnel run yesterday. I'm pretty sure it was the car Which when close by I couldn't even hear mine running, and I'm at 105 db exactly.

Keep this thread updated if you get close to that sound with out the massive volume level.

NTEL

5,051 posts

269 months

Monday 15th October 2012
quotequote all
With the decats you need to put some "mass" back into the rear cans. Repack them with ceramic silencer fill and then sleeve them leaving about 4" of perf at the outlet end. Job done.

ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
NTEL said:
With the decats you need to put some "mass" back into the rear cans. Repack them with ceramic silencer fill and then sleeve them leaving about 4" of perf at the outlet end. Job done.
That's the way then. Cheers

ChopperTVR

Original Poster:

201 posts

232 months

Monday 15th October 2012
quotequote all
ChopperTVR said:
That's the way then. Cheers
Sorry to be thick when you say leave 4" of perf at outlet you mean not full sleeve and leave the last 4" standard?
Also best place to order the fill?

Cheers

DAVEY DEE

647 posts

183 months

Monday 15th October 2012
quotequote all
I was after a deeper exhaust note too.I decatted & had an ACT big bore cherry bomb system fitted.I was very happy with the result.But as its a Cerb it doesn't have cans on.

NTEL

5,051 posts

269 months

Monday 15th October 2012
quotequote all
ChopperTVR said:
Sorry to be thick when you say leave 4" of perf at outlet you mean not full sleeve and leave the last 4" standard?
Also best place to order the fill?

Cheers
Yip, you got it. I get my exhaust bits from J. P. Exhausts in Macclesfield.

DAVEY DEE

647 posts

183 months

Monday 15th October 2012
quotequote all
Same peeps who did mine.

Robertjp

2,281 posts

254 months

Tuesday 16th October 2012
quotequote all
Mine are fully sleeved and decatted and whilst i do love it, i would like a deeper exhaust note too as it is raspy. I have thought about trying to take the sleeve back out, or trying to cut out part of the sleeve with a slitting disk and dremel...but it was a bloody tight fit to get the sleeves in there....

So far i have done sweet FA about it, fearing i will only cock that up and have to buy new cans...

ChopperTVR

Original Poster:

201 posts

232 months

Tuesday 16th October 2012
quotequote all
Do you have standard cans?
Do you still have the rear boxes on?

Robertjp

2,281 posts

254 months

Tuesday 16th October 2012
quotequote all
Im running decatted, with standard cans, that are sleeved with stainless, with the small back boxes still in place.