free hit
counters
Exige Exhaust on Evora - Engine & Ancilliaries/Gearbox - The Lotus Forums - Lotus Community Partner #ForTheOwners Jump to content


IGNORED

Exige Exhaust on Evora


Recommended Posts

Hi,

 

Am i correct in thinking that you can use any V6 engined exhaust on an Evora?

 

I have a NA but wouldnt mind a valved exhaust and thought about getting a used Exige unit, i would need to control the valve using aftermarket i understand that.

 

Thanks!

Link to comment
Share on other sites


Upgrade today to remove Google ads and support TLF.

I can't comment on interchangeability between Exige/Evora exhausts (although I believe there is some overlap).

However, if you're planning on fitting the remote controlled valve from Elise-shop, and would like any tips on fitting, let me know - it's a job I've done recently.

Link to comment
Share on other sites

There are a couple of different diameters used by Lotus for the V6 units, so I believe there are some differences when fitting to Evora NA. The LOTAC05504 part fits both Evora NA and Exige S, unsure about others.

Link to comment
Share on other sites

Yes i have that fitted currently with  a decat, was thinking the valved Exige Janspeed system would be louder valve open and quiet when i wanted it.

I bought a full Exige system manifold back so i guess i will find out what fits and what dosent soon! 

Link to comment
Share on other sites

  • Gold FFM

Not to sound stupid, but as far as I'm aware, Lotus don't modify the head, therefore any of the V6 exhausts no matter the bore 'in theory' would fit the head.

Whether the rest of it fits is another question but if one type fits, it's likely another does I would have thought? Very uninformed thinking there so don't put any money on it but would be interesting to know if someone knows differently perhaps @Hangar 111?

Link to comment
Share on other sites

18 hours ago, thealastair34 said:

Hi,

 

Yes that would be ideal please!

Send me a message if you’d like a chat or have any specific questions, otherwise I might be able to add a few general steps/pics to this thread when I next take the airbox off for another job (should be sometime in Feb).

Link to comment
Share on other sites

I would think Exige / Evora headers are the same.  I would think the back box is also the same between them.  The mid pipe might be different between the two as the engine packaging is slightly different.  So maybe some customisation needed connecting the cat delete pipe to the backbox but should be too hard for a exhaust fabricator to sort out.

 

As far as I know, bore sizes where increased for the supercharger engine as I guess more flow rate and less velocity was needed as you have forced induction.  Smaller bores and higher velocity gases is probably better for the NA engine.

Link to comment
Share on other sites

  • 1 month later...
On 11/01/2022 at 14:38, Doug Ashley said:

otherwise I might be able to add a few general steps/pics to this thread when I next take the airbox off for another job (should be sometime in Feb).

I just about got this done in February...

I fitted the Aerie short shift adapter at the weekend, and took a couple of pics to illustrate the radio controlled valve setup while the airbox was off.

For the valve controller itself I found a very convenient 'shelf' with a drilled hole, which has allowed me to stick it here & add a thick cable tie for security.  I could then run a vacuum hose down to where the OEM valve solenoid is (still in situ, where the orange hose can be glimpsed in the picture, in case I want to revert to the standard setup).  I hooked this new vacuum tube to the metal pipe taking the vacuum through to the exhaust, this was easiest done from underneath after removing the undertray.  For cars without a factory valve, you'll need to find a (not too hot) route from the engine bay to the exhaust area.

For the wiring, the best option I found for passing the wires through the bulkhead to the rear fusebox was to use the cabin air venting tube across the far left of the engine bay, which goes directly to the fusebox area.  I just poked a small hole with a screwdriver and fed the wires through taped to a vacuum hose to give something more solid to push on, which I then removed.  I then connected the wires up as per the instructions and taped up the venting tube to seal it again.

There might be a cleverer/easier route to the rear fuse box from the engine bay, but I struggled to find anything else, even after looking at a total Evora rebuild video which showed that area of the car dismantled.  I did try where the wiring loom passes through, but didn't want to damage the rubber seal here by poking at it too much.

Anyway, it's now great to have full control of the valve, and I had no issues hooking up to Homelink buttons on the roof.  However, I'm braced for anyone pointing out the easier/better ways to do this than I have!

The Aerie short shift adapter in the picture is another story (covered in other threads in the Exige v6 area).  I haven't taken the car out for a spin yet but it feels promising...

 

 

 

IMG_0643.jpg

LOTUS EVORA 3.5 V6 S 2 SUPERCHARGED (345 BHP) -.jpg

Link to comment
Share on other sites

3 hours ago, Doug Ashley said:

I just about got this done in February...

I fitted the Aerie short shift adapter at the weekend, and took a couple of pics to illustrate the radio controlled valve setup while the airbox was off.

For the valve controller itself I found a very convenient 'shelf' with a drilled hole, which has allowed me to stick it here & add a thick cable tie for security.  I could then run a vacuum hose down to where the OEM valve solenoid is (still in situ, where the orange hose can be glimpsed in the picture, in case I want to revert to the standard setup).  I hooked this new vacuum tube to the metal pipe taking the vacuum through to the exhaust, this was easiest done from underneath after removing the undertray.  For cars without a factory valve, you'll need to find a (not too hot) route from the engine bay to the exhaust area.

For the wiring, the best option I found for passing the wires through the bulkhead to the rear fusebox was to use the cabin air venting tube across the far left of the engine bay, which goes directly to the fusebox area.  I just poked a small hole with a screwdriver and fed the wires through taped to a vacuum hose to give something more solid to push on, which I then removed.  I then connected the wires up as per the instructions and taped up the venting tube to seal it again.

There might be a cleverer/easier route to the rear fuse box from the engine bay, but I struggled to find anything else, even after looking at a total Evora rebuild video which showed that area of the car dismantled.  I did try where the wiring loom passes through, but didn't want to damage the rubber seal here by poking at it too much.

Anyway, it's now great to have full control of the valve, and I had no issues hooking up to Homelink buttons on the roof.  However, I'm braced for anyone pointing out the easier/better ways to do this than I have!

The Aerie short shift adapter in the picture is another story (covered in other threads in the Exige v6 area).  I haven't taken the car out for a spin yet but it feels promising...

 

 

 

IMG_0643.jpg

LOTUS EVORA 3.5 V6 S 2 SUPERCHARGED (345 BHP) -.jpg

I would of used the valve that operates the Air filter box flap with a tee pipe connection and run a pie to the exhaust valve, so when you operate the sports mode the air box flap and the exhaust valve would operate at the same time.

Link to comment
Share on other sites

20 hours ago, EvoraBob said:

I would of used the valve that operates the Air filter box flap with a tee pipe connection and run a pie to the exhaust valve, so when you operate the sports mode the air box flap and the exhaust valve would operate at the same time.

Thats what ive done with mine

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...