Exhaust

[RussLCV]

I am think about what exhaust to run on my pick-up rebuild. I have an 1.5inch Ital manifold with a S/S 1.5 inch down pipe (MMC Brum), water inlet with HIF 44.

Now that brings me down to the floor under passnger seat rear of the cab area. I intend to exit from teh passenger side in front of the rear wheel. My van does the same with a standard SS exhaust.

I have thought about a cherry bomb.................or a mini RC40, but would welcome any comments

Thanks Russ

Russ@MinorLCVreg.co.uk

[bmcecosse]

I think a single cherry bomb will be quite loud!

[bigginger]

I can vouch for the fact that a single cherry bomb is an MOT failure
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[RussLCV]

Cheers Lads.............any ideas

[Peetee]

Just an idea, but the standard 1.5 system I have is in three sections. Downpipe, front silencer and rear (that includes the bent section over the back axle. If the flared end pipe were cut off, maybe the whole rear pipe could be fitted back to front so the bent section exits at the side?

[RogerRust]

Do they still make cherry bombs? I had one on my AH sprite 30 years ago! And yes it failed it MOT for being too loud even then!

Talking of exhaust - What exactly is a dump valve and what do they do?

[Welung666]

A dump valve is connected to a turbo to blow out excess pressure on deceleration.

[Orkney2]

Cherry bomb sound amazing in combination with a janspeed mid box and really works a treat for exit compression.

[Peetee]

A dump valve is connected to a turbo to blow out excess pressure on deceleration

Cause by the inertia of the turbo vanes as they continue to turn at speed when the engine is trying to slow.

[Matt]

My Trav is using an RC40 (center exit) from a mini, but its a side exit on the mog....

[bigginger]

Do they still make cherry bombs?

Yup
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[RussLCV]

Can anyone with a RC40 either post or e-mail some images how it mounts etc....

[bmcecosse]

Just the usual clamps and rubber 'bobbins'.
https://www.plminishop.com/view_product ... t=RC40-KIT

[dunketh]

No Fair!
Mini owners can get the whole system for a mere £150!!

Double that to get a Minor system and manifold.

[alainmoran]

I intend to exit from teh passenger side in front of the rear wheel.

Is that legal?

I was hoping to do this with my uber-custom pickup, however I vaugley remember reading somewhere that side-exhausts are no-longer allowed.

[MoggyTech]

I intend to exit from teh passenger side in front of the rear wheel.

Is that legal?

I was hoping to do this with my uber-custom pickup, however I vaugley remember reading somewhere that side-exhausts are no-longer allowed.

That would make Cobras and many kit cars illegal. AFAIK the only restriction on side exit exhaust, is it must not protrude beyond the widest part of the vehicle body so causing a danger to other road users/pedestrians. The exit pipe must also angle down slightly to direct the fumes at the road.

[alainmoran]

Whoop, that means Audrey can have the great big chromed exhausts (one on each side - its a V4 lump) that she really deserves

[MoggyTech]

Whoop, that means Audrey can have the great big chromed exhausts (one on each side - its a V4 lump) that she really deserves

Sounds good to me, and will probably sound good to the whole street
The only other legal requirement I can remember off hand, is the decibel level allowed, 94db at one metre i think.

[bigginger]

The vans and pick-ups have a side exit exhaust as standard anyway
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