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nice! What's the estimated price?
 

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Just received 2-eleven shroud,

Boy it is light.

Just need to get the duct now :)
Weight?
I'd be curious about how it works out for you since I don't think there's enough space for the stock side ducts to accommodate 4" ducts/hoses, which probably means you'll be using aftermarket size scoops.
 

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Weight?
I'd be curious about how it works out for you since I don't think there's enough space for the stock side ducts to accommodate 4" ducts/hoses, which probably means you'll be using aftermarket size scoops.
Yes you are right the side scoops are to slim for 4inch. I have some ideas to widen the scoops to accomodate. I also have found a duct molded fittment that changes the round to a rectangle. Would you believe it is a dryer ventilation ducting system! But should do the job nicely. :clap:

Somthing similar to this http://www.screwfix.com/p/manrose-round-pipe-to-channel-connector-white-100mm/12049, then you can extend the retanglar section, reducing the width required in the side scoop.
 

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Almost got all my bits

2x100mm 2 metre duct
Two reducers from 100mm to 45mm rectangular (still waiting on one)
2x45mm extensions
1x 2-eleven shroud
4x worm drive clamps

The reducers will allow me to change the profile so it will fit into the standard side scoops without widening it. :clap:
 

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Mod done! :)

This mod took me 4 to 5 hours

First removed intercooler and found the original shroud was starting to crack at the edges and had heat damage underneath, so was happy this was coming off. I cut the shroud off with a hacksaw close to the recess, thin used a knife to trim and cut the silastic holding it on. Then cleaned all the left ove silastic, put on 2-eleven shroud, drilled and riveted on.

I then used a piece of cardboard to make a template for a heatshield to go under the intercooler. Cut this out. Now removing the rubber mounts the bolts are quite difficult to get too, so I removed the right bracket. This was fine, but to install the sheild it needs to be on. So fitted the on bolt turned the heat shield towards the boot and put the bracket back on, once started fitted the shield and placed IC back in place with long intake fitted.

Now fitted coupler (4 inch to rectangular) to pipe and feed it down to the scoops, repeated both sides. The left side was tight due to water bottle bracket and intake pipe being installed.

Then fitted rectangular extension through the scoop and bolted to braket I made, repeated both sides.

Space out side scoop 5mm to allow a little more air in.

Fitted pipe onto intercooler.

All done!
 

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Out of curiosity, where does your air intake get flow from now that you've diverted it all to the IC? May have missed it somewhere if mentioned earlier but all the talk of heat soak and thermal bla bla put me to sleep.
 

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Out of curiosity, where does your air intake get flow from now that you've diverted it all to the IC? May have missed it somewhere if mentioned earlier but all the talk of heat soak and thermal bla bla put me to sleep.
The snorkel to the airbox has been removed. The opening to the airbox is not restricted by the pipe. It may look like I have blocked off all the air, but in reality there is still quite a bit of space for air to still enter around my ducting. It is only tight up near the top where it turns back towards the intercooler. All this is not so easy to see in the photo. The rectangular duct takes less than half of the scoop space and there is still the underneath section to allow air in too.

The main worry I have been told about is air to the alternator on the other side, but there does seem plenty of space for air tostill get in
 

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The snorkel to the airbox has been removed. The opening to the airbox is not restricted by the pipe. It may look like I have blocked off all the air, but in reality there is still quite a bit of space for air to still enter around my ducting. It is only tight up near the top where it turns back towards the intercooler. All this is not so easy to see in the photo. The rectangular duct takes less than half of the scoop space and there is still the underneath section to allow air in too.

The main worry I have been told about is air to the alternator on the other side, but there does seem plenty of space for air tostill get in
RLS's Wide Side Scoops, dude >:)
 

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Bumping this thread, cuz I have 'some' new data.
I added 2" ducts to my stock intercooler shroud recently and logged data.

Apples to Oranges because variables are different, but hopefully it's still somewhat usable.

Car: 2008 Lotus Exige S240. STOCK.
Date: March 26, 2015
Track: Laguna Seca
Ambient Temperature: 65F
Vmax: 111MPH


Car: 2008 Lotus Exige S240 +2" ducts.
Date: April 4, 2016
Track: Buttonwillow
Ambient Temperature: 72F
Vmax: 114MPH


Comments:
The ultimate goal is to keep the IAT under 70C(158F).
20C(36F) drop in IAT is decent, but the fact that I still went over 70C is a bummer.
The test conditions were obviously different. But, the Ambient Temperature at Buttonwillow was higher and the fact that stock supercharger is capable of shooting IAT up well past 80C by Lap 2 elsewhere still shows that additional airflow is a good thing as the IAT was kept under 80C with my ducts.
Larger ducts may be helpful. Better intercooler could be helpful. A2W Chargecooler could be the answer to high IAT, but it adds complexity and weight..

My original plan was actually to do a back-to-back session on a fair weather to reduce variables.
Run 1: Duct hoses disconnected around 1PM session.
Run 2: Duct hoses connected around 2PM session.
This would accentuate the effectiveness of the side ducts because ambient temperatures near my location typically peaks around 2~3PM. It would show that despite the Run 2 having marginally higher ambient temperatures, the side ducts should have decreased the IAT by however effective it is.
I couldn't do it this way because I've never been to Buttonwillow and we ran the other way around for afternoon session, forcing me to re-learn the track. And, I got tired.

I plan to do it this way on my next track day. Whenever that is.

==================
Here's what I did. Inspired by @cain-it http://www.lotustalk.com/forums/f157/my-new-exige-dubai-101782/index2.html#post1624410
I actually bought the parts about a year ago, but only just recently installed it because I had other things to take care of.







https://www.merlinmotorsport.co.uk/p/spun-aluminium-air-outlet-ao
https://www.merlinmotorsport.co.uk/p/revotec-black-single-layer-neoprene-ducting-per-metre-rev-blk
https://www.merlinmotorsport.co.uk/p/duct-joining-sleeve-70mm-id-pair-rev-js70
https://www.merlinmotorsport.co.uk/p/152mm-x-51mm-offset-air-duct-id152-51os
 

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Bumping this thread, cuz I have 'some' new data.
I added 2" ducts to my stock intercooler shroud recently and logged data.

Apples to Oranges because variables are different, but hopefully it's still somewhat usable.

Car: 2008 Lotus Exige S240. STOCK.
Date: March 26, 2015
Track: Laguna Seca
Ambient Temperature: 65F
Vmax: 111MPH

https://www.youtube.com/watch?v=zmp5gsfGx20

Car: 2008 Lotus Exige S240 +2" ducts.
Date: April 4, 2016
Track: Buttonwillow
Ambient Temperature: 72F
Vmax: 114MPH

https://www.youtube.com/watch?v=ftnhDKoR69Q

Comments:
The ultimate goal is to keep the IAT under 70C(158F).
20C(36F) drop in IAT is decent, but the fact that I still went over 70C is a bummer.
The test conditions were obviously different. But, the Ambient Temperature at Buttonwillow was higher and the fact that stock supercharger is capable of shooting IAT up well past 80C by Lap 2 elsewhere still shows that additional airflow is a good thing as the IAT was kept under 80C with my ducts.
Larger ducts may be helpful. Better intercooler could be helpful. A2W Chargecooler could be the answer to high IAT, but it adds complexity and weight..

My original plan was actually to do a back-to-back session on a fair weather to reduce variables.
Run 1: Duct hoses disconnected around 1PM session.
Run 2: Duct hoses connected around 2PM session.
This would accentuate the effectiveness of the side ducts because ambient temperatures near my location typically peaks around 2~3PM. It would show that despite the Run 2 having marginally higher ambient temperatures, the side ducts should have decreased the IAT by however effective it is.
I couldn't do it this way because I've never been to Buttonwillow and we ran the other way around for afternoon session, forcing me to re-learn the track. And, I got tired.

I plan to do it this way on my next track day. Whenever that is.

==================
Here's what I did. Inspired by @cain-it http://www.lotustalk.com/forums/f157/my-new-exige-dubai-101782/index2.html#post1624410
I actually bought the parts about a year ago, but only just recently installed it because I had other things to take care of.







https://www.merlinmotorsport.co.uk/p/spun-aluminium-air-outlet-ao
https://www.merlinmotorsport.co.uk/p/revotec-black-single-layer-neoprene-ducting-per-metre-rev-blk
https://www.merlinmotorsport.co.uk/p/duct-joining-sleeve-70mm-id-pair-rev-js70
https://www.merlinmotorsport.co.uk/p/152mm-x-51mm-offset-air-duct-id152-51os
Hey forkmeupscotty,

I was at both of those track days myself, haha, and your data looks much better at Buttonwillow to me. The temps were pretty similar between the two days if I recall correctly, and you significantly reduced your IAT's with a pretty straightforward mod.

If you are going to be at the GGLC event at Thunderhill on May 31st I will be there (Phantom Black '07 Exige S, I think we chatted once or twice at past track days) and I would love to check out your setup and hear your thoughts in person. Nice work, btw
 

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One of the most interesting threads I have read on any site...and full of ideas too!
 

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Back to back test with a control just for good measure. I'm familiar with the track unlike the last time, so I was able to put down some consistent times.
Ambient Temperature was around 107F.
It definitely helps. I wish it did more. Upgrading the intercooler could help further, or going all out with A2W cooler is the way to go.





 

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Problem with those IATs is that they're, coupled with +/- 1 of 7psi of manifold pressure... :/

Good work on the logging though!:up:
 
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