Beautiful noise!

[CatmanV2]

Needs looking at - very erratic revs idling, a common issue on 3200s but sounding especially bad on that one.

That's *awful*!

C

 

[tom27]

My 3200 gt sound better with Tubi Style backboxes !

 

[Neil Surrey Labs]

I've got Tubis. Not particularly magnificent, in fact pretty quiet

 

[philw696]

Had tubis on my 456 GTA certainly made that V12 come alive.

 

[Mr.Cambio]

I've got Tubis. Not particularly magnificent, in fact pretty quiet

back boxes on a turbocharged car do not give enough sound.

 

[Chtonic]

I'll post a video later today.

I have the 3200 with decat, H pipe and bypass valve and just replaced the pop-off's with a pair of GFB BOV's.

 

[timkee330ci]

The idle hunting in the video seems worse than most 3200. Are there any way to improve the hunting? As i know there's no idle control valve, so how to adjust idling rpm? Mine is at around 1100 idle, i think it's too high.

 

[tom27]

950 RPM idle with AC compressor . You can't improve hunting. Do check the Pedal Plot and Throttlebody issues.

Chtonic, can you post some pics from your installation ?

back boxes on a turbocharged car do not give enough sound.

At idle , tubi sound on my 3200 is hugly more impressive than a stock 4200 / GT / GTS !

 

[Chtonic]

Here you go some pictures and a video of it in action.

http://youtu.be/Wdrs8Vzw63g?list=UU8pquyp0i8Je_tktQ-AcgsQ

 

[tom27]

Here you go some pictures and a video of it in action.

http://youtu.be/Wdrs8Vzw63g?list=UU8pquyp0i8Je_tktQ-AcgsQ


View attachment 23019

View attachment 23020

Looking good job !

Some questions :
No jonction ? What is the separation before backbox ? Valves ???? Direct bypass without backboxes ??
You push a button from inside to bypass ?

You get CEL without cat ?

 

[Chtonic]

Looking good job !

Some questions :
No jonction ? What is the separation before backbox ? Valves ???? Direct bypass without backboxes ??
You push a button from inside to bypass ?

You get CEL without cat ?

The bypass valves are from a company called QTP and they are electric, so i can open and shut them from a switch i have under the steering wheel. Also with the valves open it directly bypasses the backboxes, with it closed then have nice and quiet backboxes.

I only had the middle cat removed, still have the two pre-cat's. I didn't know what kind of issues this could cause with the four 02 sensors, so thought it best to leave that side of things.

This setup sounds amazing under full load.

 

[CatmanV2]

How much were the valves, that's a rather tempting idea. X-Pipe, normal back boxes and then straight through.

C

 

[drewf]

It is indeed - I've watched the video of the 3200 with considerable interest.

 

[CatmanV2]

It is indeed - I've watched the video of the 3200 with considerable interest.

From Matt's post in the neighbour trouble thread, maybe £100. Although that may be only for the switch gear.
The more I think about it, the more I feel that may well be where I'm heading.

X-Pipe then simply vent the exhaust on a valve. And I have a remote plib that has three extra functions


C

 

[drewf]

Yes it will be - you still need the modified tubing and boxes etc.

 

[CatmanV2]

Hmm
About £280 inc the cutout pipes. Or rather less on ebay. Any idea what diameter pipes we're running?

And then (I guess) a couple of hours cutting and welding?

Hmmm indeed.

C

 

[Chtonic]

The exhaust on the 3200 is 3", I don't know for the 4200. From memory the valves cost around $700 AUD.


here is the one I got: http://shop.quicktimeperformance.com/cart.php?m=product_detail&p=107

 

[beau]

Who's got a great sounding 3200?

I love mine, I have decat the front section ( 2 cats) and just pipe straight from the mid cat, so that little cat in the middle is all I have, it's loud and sounds great, I might remove that mid cat too soon

Doesn't do it justice ! http://youtu.be/YtMhPP5Sz44

 

[Contigo]

I have kept the cats on the downpipes but removed the centre. Tempted to do more fettling

 

[Neil Surrey Labs]

You'll need the cats for the MOT?