Leyland P76 4.4 Litre

[awright]

Hi there, What is the optimum exhaust setup for this motor - mostly being used off road in a rangie?

I already have extractors and am looking at re-working the system downstream of these. Cheers

[Loanrangie]

Single 2.5 " with single free flow center muffler and resonator in the rear.

[cloughy]

Twin 1" 3/4 that way it doesnt sound like every other crappy rover motor

[Chris F20 maniac]

hey cloughy,

thanks for the tip! ill remember that when i go to get my new exaust, should sound sweet.

so twin all the way after my extractors with just one high flow lukey in the middle and then still twin all the way to the back after that.

thats what im thinking anyways.

[Loanrangie]

a twin is a complete waste, a good single exhaust is better for torque and sound and easier to route.

[cloughy]

a twin is a complete waste, a good single exhaust is better for torque and sound and easier to route.

Easier to route yes, but sounds like your crappy rover V8 and everyone elses, twins always sound better, and better for torque??? kinda depends on size of either and what sort off backpressure, not my choice he can follow the flock if he likes but a twin system on a rover V8 sounds great

[Loanrangie]

well my 3.5 has a nice throaty rumble you can from a block away, a twin would make it sound like a riceboy wannabe subura.

[cloughy]

well my 3.5 has a nice throaty rumble you can from a block away, a twin would make it sound like a riceboy wannabe subura.

Yea the same rumble as every other rover V8, have you ever had or heard a rover V8 with a twin system??????

[justinC]

Had a customer with a RR he had a pommy Hi performance motor fitted, ran a twin 2"side by side from front to rear, twin turbo mufflers and no resonators, hottest sounding RR ever. Went well too.

was 5 years ago at least, can still hear it now

JC

[LRCounty]

My previous County had Genie headers and a full twin system on it when I bought it. There isn't enough room to mount two mufflers side by side horizontally, so they were mounted vertically. Both mufflers were damaged on a serious offroad weekend and needed replacing. I had the whole system replaced (except for headers) with a 2.5" single system for one reason only...to mount a single muffler horizontally and up as high as possible.
It's personal preference as to which sounds better. I think a single sounds better at low revs, and a twin sounds better at high revs. I did notice quite a significant increase in idle - mid torque with the single sytsem though.

Cheers
Andre