New RHD Exhaust Manifold & System

[Polariscsl]

Following on from my project thread on my new engine and gearbox. I thought I would post specifically about the great service and expertise of Alunox exhausts. They were recommended to me by my engine builder as a company that actually thinks about the solution and performance design rather than just making something that fits.

They have recently designed a fantastic solution to fit equal length 25"primaries around the standard steering box. This far supersedes anything else on the market as you will see:





These manifolds can be recreated off the shelf from jigs made for mine so they won't be going from scratch.
Spec:
1" 5/8 die headers
25" long primaries
304 stainless steel 1.2mm wall
manifold is all on v-bands not slip joints. They can be installed without taking the engine out too.

Stainless 304 2.5 inch system

They also made me a beautiful system to match (pics to follow)
Anyone considering a stainless or even titanium or even inconel solution need to give Leon a call for assistance.

Leon Pierce
www.alunox.co.uk
01978 851100

I am not affiliated - just a happy customer singing the praises of some great engineers!

 

[deQuincey]

wow
it is impressive ! so complex geometry, going forward and then backwards, incredible
nice job, ...but,...is it really necessary ?
i mean what are you expecting ?

 

[Polariscsl]

wow
it is impressive ! so complex geometry, going forward and then backwards, incredible
nice job, ...but,...is it really necessary ?
i mean what are you expecting ?

Interesting question, I am certainly expecting a performance and audible gain but its hard to answer if it was absolutely necessary. I'm sure I'm not alone on going overboard looking after and tinkering with my coupe!
My engine builder tested the oem and fritz systems and found them to be restrictive so rather than accepting average I did this!

 

[pamp]

Pipes

Man....that is a whole lot of pipe! Ceramic coat and inventive heat shielding required.....Heat soak will be your enemy, especially without cold air to your intake? Gotta' keep that air density happening or all is for naught. My 2 cents

 

[Polariscsl]

Correct, heat shields are now in! I'm working on the cold air intake side of things.

 

[deQuincey]

thanks for you answer...
yes, it is good to try and check new things
good for you !

ps. keep us posted about it...

 

[pamp]

Air

I have experimented extensively....back track my posts. You will want no more than an underhood temp of 140 degrees....static. Parked with the bonnet closed. Why guys hate to stall in the pits and try to re-fire.....the heat. My headers are ceramic coated, 1 1/2'' short. I was surprised when I ran with out heat shields and measured with a thermocouple under the hood. At the time it was something I had not considered....heat soak and air density. All is well now with heat shields in place, but my headers tuck under the frame rails vs what you have.

 

[Polariscsl]

I have experimented extensively....back track my posts. You will want no more than an underhood temp of 140 degrees....static. Parked with the bonnet closed. Why guys hate to stall in the pits and try to re-fire.....the heat.

Will do thanks

 

[johanaxelson]

Why do I suddenly feel a hankering for a nice plate of pasta?

But seriously, looks very nice. Good work there.

 

[e9john]

Do you know how much they will be selling this set up for ? looks impressive.

John.

 

[Polariscsl]

Do you know how much they will be selling this set up for ? looks impressive.

John.

Not sure I'm afraid, worth giving Leon a call or email though. He may have worked it all out by now.

 

[readie]

I know this is an old post, but what has your experience of the manifold and system been ? I am considering the fritz system.. does anyone have any other alternatives for RHB cars ?.

 

[sandhu]

CLA do nice exhaust systems !!!

 

[readie]

thanks have googled but cannot find them...can you give me any pointers.

ta

 

[Marco 54]

thanks have googled but cannot find them...can you give me any pointers.

ta

Good afternoon Readie

Have you tried -

Cybox Automotive
Unit 8, Wrynose Road
The Old Hall Estate,
Bromborough,
Wirral, CH62 3QD
Tel: 0151 343 0330
Website: www.cybox.co.uk
Email: [email protected]


Someone on the Forum recommended them some time ago and I will give them a try when my car is finished.

Cheers.

Marco54

 

[Marco 54]

thanks have googled but cannot find them...can you give me any pointers.

ta

Just found the previous recommendation from 'Rek' - https://e9coupe.com/forum/threads/stainless-steel-exhaust.26318/page-2#post-278063

 

[daddywad]

Snap ! £2500 from Alunox plus ceramic coating inside and out

 

[sandhu]

thanks have googled but cannot find them...can you give me any pointers.

ta

Sorry readie..I should of given you all of the below info ...my apologies
CLA automotive LTD
Unit 1
Portland Rd
Rushden
NN100DJ

07555 444728

 

[Honolulu]

holy guacamole... 2500 pounds sterling is USD$3200

I gotta get me a pipe bender and a tig setup.