Forgive for I have sinned!
Discussion
Been messing about with the cars today and decided to put standard exhaust back on the cerb. Having just taken it out for an ethusiastic test drive. It makes so much more sense as a complete package, your brain isn't being bombarded with the volcanos noise from the exhaust that was on the car when I purchased it. It just feels right without 100% of the drama, I'm happy with 70% of the drama with standard exhaust. It's still running with out the cats, not sure what difference that makes?
How many of you, run standard exhaust, or how many swapped back to standard exhaust?
Have to say the exhausts I have just taken off were not much more than a straight through pipe with a baked bean sized silencer!
How many of you, run standard exhaust, or how many swapped back to standard exhaust?
Have to say the exhausts I have just taken off were not much more than a straight through pipe with a baked bean sized silencer!
Biggles1964 said:
Been messing about with the cars today and decided to put standard exhaust back on the cerb. Having just taken it out for an ethusiastic test drive. It makes so much more sense as a complete package, your brain isn't being bombarded with the volcanos noise from the exhaust that was on the car when I purchased it. It just feels right without 100% of the drama, I'm happy with 70% of the drama with standard exhaust. It's still running with out the cats, not sure what difference that makes?
How many of you, run standard exhaust, or how many swapped back to standard exhaust?
Have to say the exhausts I have just taken off were not much more than a straight through pipe with a baked bean sized silencer!
Wotcha Biggs ! How many of you, run standard exhaust, or how many swapped back to standard exhaust?
Have to say the exhausts I have just taken off were not much more than a straight through pipe with a baked bean sized silencer!
I have to put mine back on every year to get it through our equivalent of the MOT (I'm in Luxembourg)
which is a bit of a pain
BUT
Practice makes....etc
I am hoping to achieve the ultimate Nirvana of a non-banging (against the chassis) exhaust but I think I'm a few more replacements off that.
Also dreamed of Cross-Over pipe to replace the Cats but no-one seems to know/talk of them anymore
Obviously it depends on the noise of your system as to how much noise the cats drop, but I have the ACT quiet system, 2.5" bore, no Cats. The cats drop my exhaust noise by 8db from 106db to 98db at 5k revs
but I run with cats out because of the heat. With them out, the cabin is cooler, the gearbox and gear lever doesn't get too hot to touch etc.
I have ACT trackday cans to drop my car to 96db if needed.
Incidently, without the massive rear box under the boot area, I lost 12kg of weight from the rear over it's replacement system. It was also the lowest point at the rear, giving me only 90- 100mm clearance from the road. I used to have to jack the rear up to stop clouting the box.
but I run with cats out because of the heat. With them out, the cabin is cooler, the gearbox and gear lever doesn't get too hot to touch etc.
I have ACT trackday cans to drop my car to 96db if needed.
Incidently, without the massive rear box under the boot area, I lost 12kg of weight from the rear over it's replacement system. It was also the lowest point at the rear, giving me only 90- 100mm clearance from the road. I used to have to jack the rear up to stop clouting the box.
When I bought my car it had sports tails on
As a result the only tracks I could always pass noise tests for were Anglesey and the Ring
The track day cans helped a bit, but it was touch and go whether I could pass 105 static because it was dependent on the tester not knowing what the red line was ("Yes it's V8, about 5800 red line I guess")
Eventually I found a beat up back box from our friends in Northumberland, which appears to be a Silverstone Performance unit, and it weighs a ton
But I can now drive across Europe without developing a non-stop headache, and according to Joolz it is well made and I'm not sacrificing any power with it either
Also, when I go to quiet tracks like Zolder, I can shove some extra restrictors up the abnormally large tailpipes
As a result the only tracks I could always pass noise tests for were Anglesey and the Ring
The track day cans helped a bit, but it was touch and go whether I could pass 105 static because it was dependent on the tester not knowing what the red line was ("Yes it's V8, about 5800 red line I guess")
Eventually I found a beat up back box from our friends in Northumberland, which appears to be a Silverstone Performance unit, and it weighs a ton
But I can now drive across Europe without developing a non-stop headache, and according to Joolz it is well made and I'm not sacrificing any power with it either
Also, when I go to quiet tracks like Zolder, I can shove some extra restrictors up the abnormally large tailpipes
I got mine from ACT, as it looks like the original, but is stainless steel. It’s made by the original company JP for ACT.
https://www.actproducts.co.uk/product/sj10s42-cerb...
That said, I can’t help thinking it’s louder than the original. That or my memory’s blurred.
https://www.actproducts.co.uk/product/sj10s42-cerb...
That said, I can’t help thinking it’s louder than the original. That or my memory’s blurred.
ukkid35 said:
Eventually I found a beat up back box from our friends in Northumberland, which appears to be a Silverstone Performance unit, and it weighs a ton
But I can now drive across Europe without developing a non-stop headache, and according to Joolz it is well made and I'm not sacrificing any power with it either
I had a lot of issues with mine and with SP themselves. I had one of the early ones as it appeared to be the complete answer, performance and quiet. Basically they said it would do 98db but they 'forgot' to say that was on their test car, with the cats in at 2k revs. It did 106-108db at 5k revs.But I can now drive across Europe without developing a non-stop headache, and according to Joolz it is well made and I'm not sacrificing any power with it either
It was also fitted badly and was poorly made with one rear tailpipe being bent offset. It went back to SP for a week, who blamed my engine, my tune, ran my car around for 200 miles saying it just needed running in and left the car with no fuel on collection and the engine covered in oil where they'f had the camshaft covers off and left it leaking. They also caused £2k damage to the rear valence as it was badly fitted and was banging against it, burnt and cracked it.
I returned it, never got the refund promised. I sued them in court won all damages and refund and they shut the business and went elsewhere and sold my exhaust as a secondhand unit to someone else and I never got the money back. £3500 down the drain.
I believe the later ACT provided ones are better made, but they are heavy. I saved around 15kg with the ACT exhaust system and more rear road clearance.
ACT system I have, which is now 11 years old and still pefect, has silencing in the tailpipes also
I find it's a a good compromise between a good exhaust note and not noisy. However 1 1years on I'm sure there's other systems available.
There was talk of a valved exhaust system at one point, did that ever go anywhere?
I find it's a a good compromise between a good exhaust note and not noisy. However 1 1years on I'm sure there's other systems available.
There was talk of a valved exhaust system at one point, did that ever go anywhere?
Biggles1964 said:
Just a quick one what ford did or do the rubber silencer hangers come from?
£1.60 in HalfordsTVR parts - £3 plus 7.50 postage
https://tvr-parts.com/tvr-parts/part-details/tvr-s...
or it's a Hex403 mount from Halfords for £1.60
https://www.halfords.com/workshop-tools/garage-equ...
Universal Oval four hole Exhaust Mount
Dimensions: 70mm High & 50mm Wide
I found the easiest way was to remove the hanger mount from the bodywork and exhaust put the rubber on the two parts the bolt it to the bodywork again, then attach the exhaust. That way you can swear at fitting the rubber whilst you have plenty of room , rather than under the car
QBee said:
If you want a quieter car AND more power, try turbocharging it. Knocked 10 decibels off my decatted Chimaera. 
Forced induction on a SOHC car is always going to be a difficult propositionNA cam timing bears no relation to Forced induction, so you are either going to have to spend a fortune tuning your cams, or you are going to go for a moderate compromise
https://www.pistonheads.com/gassing/topic.asp?h=0&...
Paul's fabrication skills are awesome, but I'm not sure whether the car was ever truly usable
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