What a Noise!!!

[Peter255]

Thanks for the info AndyGDI.

Charlie @ ProSpeed reckoned on about £630 for the manifolds, including x2 200cpsi sports cats, and that's including design & fitting. His back box is around £590. That's almost £800 less that the Janspeed for a custom setup! :shock:

Then you have to add the labour costs which will be hundreds! :wink:

Peter

 

[Tim]

Andy.....How does your backbox differ from the Quiksilver and KTec rear boxes? IN the market for one but not sure which yet?

 

[JJ]

Thanks for the info AndyGDI.

Charlie @ ProSpeed reckoned on about £630 for the manifolds, including x2 200cpsi sports cats, and that's including design & fitting. His back box is around £590. That's almost £800 less that the Janspeed for a custom setup! :shock:

Then you have to add the labour costs which will be hundreds! :wink:

Peter

Err, no, that's the point - those prices _include_ the labour to make and fit the system! :wink:

 

[Peter255]

Thanks for the info AndyGDI.

Charlie @ ProSpeed reckoned on about £630 for the manifolds, including x2 200cpsi sports cats, and that's including design & fitting. His back box is around £590. That's almost £800 less that the Janspeed for a custom setup! :shock:

Then you have to add the labour costs which will be hundreds! :wink:

Peter

Err, no, that's the point - those prices _include_ the labour to make and fit the system! :wink:

Well get a formal written quote and get him to make them ASAP. BUY BUY BUY! :twisted:

For manifolds, Cats, downpipes and back box fitted £1200 is frankly AMAZING!!!! :shock:

Peter

 

[Anonymous]

The noise is the main factor – a few BHP makes bugger all difference. Bit like what that guy in the other thread was saying – these are 'Halfords' mods.

I would have to disagree that noise is the main factor, the car feels alot smoother and revs more freely.
A simple test to prove my point;

1, Get a pair of football socks
2, Roll each of them up
3, Stuff each one up a separate tail pipe
4, Start the engine and marvel at how quiet the engine note is
5, Go for a drive (if possible) and be totally pissed that it drives like a bag of shite

 

[Karlosfandango]

The noise is the main factor – a few BHP makes bugger all difference. Bit like what that guy in the other thread was saying – these are 'Halfords' mods.

I would have to disagree that noise is the main factor, the car feels alot smoother and revs more freely.
A simple test to prove my point;

1, Get a pair of football socks
2, Roll each of them up
3, Stuff each one up a separate tail pipe
4, Start the engine and marvel at how quiet the engine note is
5, Go for a drive (if possible) and be totally pissed that it drives like a bag of shite

*This view is not endorsed in any way by V6clio.net

 

[Jamesv6]

Quite right Karlos lol

Wouldn't mind seeing the video though.

 

[JJ]

1, Get a pair of football socks

Is it dependant on the team? :wink:

 

[ant]

Placebo effect. You just think it is faster because you expect it to be. People didn't like what that guy was saying – but he was right. Proper BHP costs dollar.

 

[Peter255]

The Janspeed full system was dyno tested and proved to be generating more power and more torque from approx 500rpm lower in the rev range. I can't remember the details but it was approx 10BHP (and 15lb/ft from memory) up on standard. Full info is on a thread here somewhere.

Peter

 

[ant]

So what does that do to the 0-60 time and power to weight?

 

[Anonymous]

Placebo effect. You just think it is faster because you expect it to be. People didn't like what that guy was saying – but he was right. Proper BHP costs dollar.

Ant if it was possible I'd let you have a go to see for yourself. I'm sure you would see the difference.
As for Proper BHP costs dollar, I agree if you are talking about large increases.
I'm sure once you have your backbox fitted you will see a difference.

 

[ant]

Mate, when that back box is fitted I'll be suffering the placebo effect as well and telling you lot how much faster it is.

 

[Anonymous]

i have driven lots of v6's and this was faster with the exhaust..

freed up the top end... keeps pulling at 6500 upwards...

faster throttle response..

i guessed about 10-15bhp more.... felt a lot different


and the NOISE!!!!!!!!!!!!! made me want one.

 

[TRW1]

A customer fitted a Janspeed system in New Zealand (not sure whether it had cats or not) but before and after Rolling Road runs showed an increase of 11bhp at the wheels.

 

[Tim]

I kind of agree with Ant here and Ren. Proper power gains costs big bucks on an NA car. I saw good gains with my K&N and for £175 you can't beat it, however the pplacebo effect exists and works! Renault only managed to increase the power of the MK2 V6 by 25 BHP (if even that) at the fly and look at everything that was done to the plenum chamber/throttle bodies etc to give that gain.....a lot of monet if you went to have it done on the MK1.....so realistically filters and a full exhauset system without cats should give 20 bhp combined at the wheels max. All you are doing is increasing the ammount of air flowing into the engine with the filter and then allowing the shite to escape quicker down a freer flowing exhaust system and reducing back pressure is the best way to do this. Its not bad but anythiing more than this then its into modifying the engine internals etc or the poor mans power gains - NOS.

 

[JJ]

True enough, but remember Renault supposedly 'detuned' the 255 to make it more useable day to day...

 

[Anonymous]

they did detune it.

I was chatting to the development manager of TWR (ex anyhow!)

and they were running 300 bhp + NA cars...

they can do it easily...

but the car needed to last 200,000 miles... so it was detuned..

lower compression, different cams etc etc.

 

[Peter255]

they did detune it.

I was chatting to the development manager of TWR (ex anyhow!)

and they were running 300 bhp + NA cars...

they can do it easily...

but the car needed to last 200,000 miles... so it was detuned..

lower compression, different cams etc etc.

But who can retune it? :wink:

Peter

 

[JJ]

Very very interesting. I presume that's the Mk1 engine as TWR were involved with that? Didn't RenaultSport themselves develop the Mk2?

The big question is, how much can you safely up the power of the Mk2 with reliability in mind?