Weight?Just received 2-eleven shroud,
Boy it is light.
Just need to get the duct now
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: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.
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.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.
RLS's Wide Side Scoops, dude >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
Hey forkmeupscotty,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
Car: 2008 Lotus Exige S240 +2" ducts.
Date: April 4, 2016
Ambient Temperature: 72F
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.