Exhaust Mods? Possible? Worthwhile? Rubbish!

[Alec Dawe]

Anyone know what effect removing the back box, the transverse one, from a 240GLT (non-cat) would be.
Any improvement, and how much noise?
Alternatively, can you still get off the shelf straight through boxes that would substitute, and does this give any improvement?

[morsing]

I just installed a Jetex exhaust with both boxes being straight through. No real noise increase, no idea about performance.

[TheJoyOfSix]

Replacing the three fully baffled, silenced boxes with straight through boxeson my 760 V6 led to a slight loss of low down torque, but increased responsiveness and power at high rpms as well as a glorious noise!

[Mike_Brace]

I supplied Henrik with his Jetex system. We run these on our fleet of 240s for a very good reason. Slight improvement in fuel consumption (1-2mpg) and more power. We tow a lot especially long distance - it is very noticeable on hills - it has meant one gear higher on some of our regular hills. Not noticeably noisier, nicer note and importantly designed, and made in Sweden for the 240. Exhaust design does have effects on performance and the art is to produce a free flowing system that is also balanced which this system does. Home brewed are likely to increase noise levels and even reduce power. They are also built of a heavy gauge steel and have a long life.

Mike

[Clifford Pope]

I think three posts might be called "advertising", Mike. Be careful!
Best wishes,
Cliff

[Alec Dawe]

Originally Posted by Clifford Pope

I think three posts might be called "advertising", Mike. Be careful!
Best wishes,
Cliff

I think its a case of terminal shakes on the 'submit' button. After all, looking at the time of the posts, it was almost closing time (Sorry Mike!)

Reason I asked about DIY exhaust mods is I'm just trying to do it on the cheap whilst I save up for a Jetex system... mostly cos the central heating boiler has just gone belly up, and I think its the ECU on that!!
Anyone know anything about Potterton Prima 80F's???

[TheJoyOfSix]

Originally Posted by Alec Dawe

... mostly cos the central heating boiler has just gone belly up, and I think its the ECU on that!!
Anyone know anything about Potterton Prima 80F's???

Why not plug that large Riddles designed kettle into your house?

Plenty of hot water there.........

[Alec Dawe]

Originally Posted by V6 Man

Why not plug that large Riddles designed kettle into your house?

Plenty of hot water there.........

Think the pipework might have to be a bit long!!


Call out £50 £8.50 per 15 minutes.. I'm in the wrong job!

[Mike_Brace]

Originally Posted by Alec Dawe

I think its a case of terminal shakes on the 'submit' button. After all, looking at the time of the posts, it was almost closing time (Sorry Mike!)

Reason I asked about DIY exhaust mods is I'm just trying to do it on the cheap whilst I save up for a Jetex system... mostly cos the central heating boiler has just gone belly up, and I think its the ECU on that!!
Anyone know anything about Potterton Prima 80F's???

No - just a case of one ofthose nights - terminally slow connecttion that disconnects at worst possible moments, catching wrong key and losing things and the thinking it hadn't posted at all just as I had to leave to take a car (back yes - that late). This morning i found out what had happened. Than goodness I was able to get Bob to rectify it!

You've got your priorities wrong - we've Jetex on all ours and homemade heating - a homebuilt log burner in the living room and adequate clothing elsewhere!

Regards your dilema - I did have a 240 with a cherry bomb straight of the pipe exiting on rhs rear. Noisy and no improvement in power.

Mike

[gnhuk]

Originally Posted by Alec Dawe

Think the pipework might have to be a bit long!!


Call out £50 £8.50 per 15 minutes.. I'm in the wrong job!

You could always get John Antell to move it a bit nearer.............. (purely to shorten the pipe run of course!)