4350 replies to this topic

[siztenboots]

mikes got a full roll cage, so a roof rack wouldn't be a problem

[Baron Von Scubadaddy]

Get a roof box you could keep a spare set of wheels in it.

[Mike (Cliffie)]

Where was the zorst from anyhoo.....?

Custom built by a company in St Albans.

looks good, although surprised nobody has comented on the configuration yet

Please elaborate.

[VIX]

Wasn't it collective wisdom that SC's prefered a 4-1 set up? Eg Nick's post here:

Eg: http://www.vx220.org...=60#entry588448

[siztenboots]

i thought that a 4-2-1 was better midrange

[Mike (Cliffie)]

Wasn't it collective wisdom that SC's prefered a 4-1 set up? Eg Nick's post here:

Eg: http://www.vx220.org...=60#entry588448

More to do with space I would imagine. I left the exhaust build to somebody who knows better than me.

[Baron Von Scubadaddy]

I prefer the old 442 with Beckham up front ..........

[Exmantaa]

Where was the zorst from anyhoo.....?

Custom built by a company in St Albans.

looks good, although surprised nobody has comented on the configuration yet

Please elaborate.

That's indeed an "interesting" set-up of cyl 1+3 and 2+4...
I'm no expert in headers pairing, but most 4cyl headers are paired 1+4 & 2+3 to distribute the pulses evenly over the secondary pipes. Yours is like a "big-banger", but you also have big long primaries...
(The OEM cast mani, 1+2 and 3+4 is more about space saving but in the end has the same sequence pairing as yours.)

[siztenboots]

is it going ( 1-3-4-2 ) bang+bang/suck+suck . I don't know the exhaust timings on the cams to know what overlap is there

[Mike (Cliffie)]

With the db levels down to 96bd with a 3 inch system, I would imagine it is doing it's job very well.

[siztenboots]

thats wrong, it would be ( 1-3-4-2 ) red into collector 1 , blue into collector 2 , to merge them in collector 3

=1===3== =4===2==
Bang Sqze Suck Blow
Blow Bang Sqze Suck
Suck Blow Bang Sqze
Sqze Suck Blow Bang

[The Batman]

With the db levels down to 96bd with a 3 inch system, I would imagine it is doing it's job very well.

That's not the manifold and downpipe reducing sound that would be the backbox and tailpipes

[Aerodynamic]

The car is awesome, really strong and handling beautifully. You can go in so committed and know exactly what it will do and how it will react.

We used the new Kumhos in the damp and wet and I was really impressed with the grip levels.

The new exhaust is something to behold and the db levels are down to 96db and I am pretty sure there is no loss of power. The manifold is beautiful.

We have to beat Ronnie in the last four rounds to stand any chance of the championship.

What spring rates and roll bars are you using and also toe and camber is interesting.
Thank you in advance.

BR, Per

[Mike (Cliffie)]

The car is awesome, really strong and handling beautifully. You can go in so committed and know exactly what it will do and how it will react.

We used the new Kumhos in the damp and wet and I was really impressed with the grip levels.

The new exhaust is something to behold and the db levels are down to 96db and I am pretty sure there is no loss of power. The manifold is beautiful.

We have to beat Ronnie in the last four rounds to stand any chance of the championship.

What spring rates and roll bars are you using and also toe and camber is interesting.
Thank you in advance.

BR, Per

You have a PM.

[Mike (Cliffie)]

With the db levels down to 96bd with a 3 inch system, I would imagine it is doing it's job very well.

That's not the manifold and downpipe reducing sound that would be the backbox and tailpipes

What I mean is we would know if we had exhaust pulses meeting due to manifold design and we would be making scooby type noises and would not be as low as 96db.

Also lengthening the system makes a difference in noise.

Edited by Cliffie, 10 July 2012 - 08:35 PM.

[The Batman]

I reckon it would have made you louder but due to the mod to the tailpipe this has reduced it overall Changing My tailpipe to a single 3" with reduces lowered my sound levels by 7db

[luke.]

Having single 3'' straight through pipe on my vag conversion. Roll on the flames

Edited by luke., 11 July 2012 - 08:12 AM.

[siztenboots]

i think scooby noises come from the unequal length exhaust header

[Mike (Cliffie)]

i think scooby noises come from the unequal length exhaust header

Correct, the unusual noise is due to the exhaust pulses meeting in the collector.

[The Batman]

How come highly tuned scoobys still sound throaty then? Would have thought they would have changed to an equal length systems? I thought it was due to cams and exhaust manifold