2007 Exige S Intercooler Air Flow Study - Page 20 - LotusTalk

apk919 · 02-12-2009, 05:31 PM

Quote:

Originally Posted by ericwgexige

apk...the aluminum heat shield between the top of the engine and the IC...I was thinking the same thing. It would have to be of some help. Also, if one could fabricate another shroud on the engine side if the IC and duct the air directly outside...maybe with a puller fan or two to help it along...

Since I've just solved my data acquisition problems, I'm hoping to get real track data (as opposed to "street" data). I'd like to try the heat shield. I don't know whether shrouds on the exhaust side of the IC would help... but there are a few threads about installing pusher/puller fans. There's another solution out there that replaces the factory IC with an aftermarket IC located near the side scoops... and it sounds like its had some success.

ericwgexige · 02-17-2009, 12:48 PM

Ideally, the entire IC would be shrouded to separate it from the super-hot air in the engine compartment. Probably look ridiculous though.

apk919 · 05-08-2009, 06:33 PM

Just getting started... more to come...

Monsi · 05-08-2009, 06:55 PM

when are you gonna do your scoop grille vs no scoop grille study?

tho I found a good compromise

apk919 · 05-08-2009, 07:00 PM

Quote:

Originally Posted by Monsi

when are you gonna do your scoop grille vs no scoop grille study?

tho I found a good compromise

One way or another, I'm going to get some real data comparing "naked" ducts vs. "grille'd" ducts. Stay tuned!

Brent Bauman · 05-08-2009, 07:38 PM

Andy I'm only saying this because we has tested it on our unlimited buggy, heat transfer in that aluminum ducting is high, or bad in the case of your use. Use silicone its more expensive but won't transfer heat into its charge as easily.

apk919 · 05-09-2009, 12:16 AM

Quote:

Originally Posted by Brent Bauman

Andy I'm only saying this because we has tested it on our unlimited buggy, heat transfer in that aluminum ducting is high, or bad in the case of your use. Use silicone its more expensive but won't transfer heat into its charge as easily.

Thanks Brent! Do you have a source for 3" diameter silicone ducting?

ZJChaser · 05-09-2009, 03:05 AM

They are local to us at least :: #1 Race Specialist in The World :: » not so much you.

shoco · 05-11-2009, 07:56 PM

I've got 2 pieces of 4" -3' silicone race brake duct hose high quality leftover pieces that I would like to donate to your investigational cause if it helps. I'm in San Diego. Let me know if it would help. Just PM me.

I really think an exhaust duct would be critical to maximizing airflow but that's just my gut feeling. Love your work. Keep it up.

apk919 · 05-11-2009, 08:27 PM

Quote:

Originally Posted by shoco

I've got 2 pieces of 4" -3' silicone race brake duct hose high quality leftover pieces that I would like to donate to your investigational cause if it helps. I'm in San Diego. Let me know if it would help. Just PM me.

I really think an exhaust duct would be critical to maximizing airflow but that's just my gut feeling. Love your work. Keep it up.

Thanks! You have a PM

Scrumpot · 05-11-2009, 09:09 PM

I've recently mounted up twin SPAL HP "puller fans" directly to the back of my stock I/C. Had the car on the track last weekend, and believe I started to heat-soak out, at approx the 10th lap at Summit/Shenandoah. Did not have the fans wired yet, so not running (maybe even acting as an obstruction

). Going to get the fans actually wired this week, so can hopefully soon provide at least some anecdotal feedback on that here.

In any case, I'm subscribed - and very much looking forward to seeing some real data / results!

If I can help with anything on this project at all too, please just let me know. My car is an '08, but is an exact identical set-up actually, to the 07 S practically, in every way.

Big

on the efforts!

shay2nak · 05-11-2009, 10:32 PM

Exhaust duct?

apk919 · 06-18-2009, 06:39 PM

More to come...

Thomasio · 06-18-2009, 06:59 PM

There is room for your setup and my setup in addition to the stock ducting. We can call it the octopus!

apk919 · 06-18-2009, 07:00 PM

Quote:

Originally Posted by Thomasio

There is room for your setup and my setup in addition to the stock ducting. We can call it the octopus!

Nice!

I've seen a couple of similar versions on LCS cars...

Thomasio · 06-18-2009, 07:02 PM

Quote:

Originally Posted by apk919

Nice!

I've seen a couple of similar versions on LCS cars...

There is a good chance the effects would be additive...

apk919 · 06-18-2009, 07:12 PM

Quote:

Originally Posted by Thomasio

There is a good chance the effects would be additive...

I agree. BTW, did you remove the upper duct from the clam to add the extra plumbing? That was seriously not fun.

Thomasio · 06-18-2009, 07:15 PM

Quote:

Originally Posted by apk919

I agree. BTW, did you remove the upper duct from the clam to add the extra plumbing? That was seriously not fun.

I had the rear window out, so it wasn't that bad. Lots of ABS-plastic shards and dust, though.

It would have been nice if the duct were removable, and doesn't Lotus use the most tenacious urethane/epoxy ever invented?!

P.S. Somewhere around here I have a photo looking into the duct from behind, similar view to your photo... but the two entry points are top, almost centered.

HKFEVER · 06-19-2009, 02:24 AM

Quote:

Originally Posted by Thomasio

I had the rear window out, so it wasn't that bad. Lots of ABS-plastic shards and dust, though.

It would have been nice if the duct were removable, and doesn't Lotus use the most tenacious urethane/epoxy ever invented?!

P.S. Somewhere around here I have a photo looking into the duct from behind, similar view to your photo... but the two entry points are top, almost centered.

Seriously ugly

Just kidding... Did you watch the movie 1942? Duct piping everywhere.

Why not consider a 3 parts CF housing ( 1st one in the cockpit, 2nd in the engine bay & 3rd the midified the IC shroud ). The PS job is very rough

apk919 · 06-19-2009, 12:05 PM

Engine ducting complete...

02-17-2009, 12:48 PM	#382 (permalink)
ericwgexige Registered User Join Date: Mar 2008 Location: Hatboro, PA Posts: 390 Images: 2	Ideally, the entire IC would be shrouded to separate it from the super-hot air in the engine compartment. Probably look ridiculous though. __________________ '07 CO Exige S TrkPk/TourPk/TrkContrl/Star - Braille 13.1lb batt, 2bular 8x24, Green filter, desnorkle, Gotham, shifter mods, Moroso oil pan, Pagid RS 4-2, fettled '91 NSX Blk/Blk many suspension mods,headers,exhaust(SOLD) '01 Integra GSR Blk/Blk Comptech header, intake, & rear tie/sway bar '04 CBR 600 F4i Red/Blk '01 Honda Rebel 250 - 80mpg!

05-08-2009, 06:33 PM	#383 (permalink)
apk919 ΒÄŅNED Join Date: Oct 2007 Location: Limbo Posts: 6,281 Images: 20	Preliminary Ducting Study Just getting started... more to come... Attached Images __________________ * 2009 Lotus Challenge Series Rookie Of The Year * (Thanks Jim, Tom, Jack, Rob & Spring Mountain Motorsports Ranch!) My videos: http://www.youtube.com/user/apk919

05-08-2009, 06:55 PM	#384 (permalink)
Monsi Statistical Anomaly Join Date: Mar 2008 Location: Kauai Posts: 2,291 Images: 21	when are you gonna do your scoop grille vs no scoop grille study? tho I found a good compromise __________________ Dude, there's my car!

05-09-2009, 03:05 AM	#388 (permalink)
ZJChaser Blue Wheel Pimp Join Date: Aug 2006 Location: Laguna Hills, CA Posts: 2,851	They are local to us at least :: #1 Race Specialist in The World :: » not so much you. __________________ AJ - Akua Solutions - #128 Lotus Exige - JRZ Suspension - Innovative Mounts - Toyo Tires - TW Research Development

05-11-2009, 09:09 PM	#391 (permalink)
Scrumpot Live on the edge Join Date: Mar 2008 Location: Maryland Posts: 757	I've recently mounted up twin SPAL HP "puller fans" directly to the back of my stock I/C. Had the car on the track last weekend, and believe I started to heat-soak out, at approx the 10th lap at Summit/Shenandoah. Did not have the fans wired yet, so not running (maybe even acting as an obstruction ). Going to get the fans actually wired this week, so can hopefully soon provide at least some anecdotal feedback on that here. In any case, I'm subscribed - and very much looking forward to seeing some real data / results! If I can help with anything on this project at all too, please just let me know. My car is an '08, but is an exact identical set-up actually, to the 07 S practically, in every way. Big on the efforts! __________________ '08 Exige-S Club Racer Desnorkelled, Stage-2, HID's, DRL Defeat, Sector111 Tow-hook & Fire Extinguisher, Deeply Fettled Roof S/C Air Intake, Schroth Prof II ASM 4pt Harnesses, RLS Lightweight gunmetal coated intercooler tubes, Saikou-Michi catch-cans, dual-SPAL hi-perf intercooler puller-fans, custom painted engine cover

05-08-2009, 07:38 PM	#386 (permalink)
Brent Bauman right seat driver Join Date: Jan 2007 Location: Tustin Ranch, Ca Posts: 845	Andy I'm only saying this because we has tested it on our unlimited buggy, heat transfer in that aluminum ducting is high, or bad in the case of your use. Use silicone its more expensive but won't transfer heat into its charge as easily.

05-11-2009, 07:56 PM	#389 (permalink)
shoco Registered User Join Date: Aug 2007 Location: So Cal Posts: 54	I've got 2 pieces of 4" -3' silicone race brake duct hose high quality leftover pieces that I would like to donate to your investigational cause if it helps. I'm in San Diego. Let me know if it would help. Just PM me. I really think an exhaust duct would be critical to maximizing airflow but that's just my gut feeling. Love your work. Keep it up.

05-11-2009, 10:32 PM	#392 (permalink)
shay2nak I <3 chicken, I <3 liver Join Date: Dec 2003 Location: Land of da 1000 Oaks, CA Posts: 15,060	Exhaust duct? __________________ save ~10 lbs gain 1 hp EQ: Y=(190X) / (1984-X) where Y is (HP) and X is (lbs) '07 EXIGE S * MY CAR ** VIDEOS! '08 ACURA TSX 6-speed http://www.makeNYNYagain.com

06-18-2009, 06:39 PM	#393 (permalink)
apk919 ΒÄŅNED Join Date: Oct 2007 Location: Limbo Posts: 6,281 Images: 20	Teaser! More to come... Attached Images __________________ * 2009 Lotus Challenge Series Rookie Of The Year * (Thanks Jim, Tom, Jack, Rob & Spring Mountain Motorsports Ranch!) My videos: http://www.youtube.com/user/apk919

06-18-2009, 06:59 PM	#394 (permalink)
Thomasio really light stuff Join Date: Jul 2003 Posts: 3,503	There is room for your setup and my setup in addition to the stock ducting. We can call it the octopus! Attached Images __________________ 07 SY Exige S Really Light Stuff Intercooler . RLS Tubes . RLS Water/Methanol Injection . RLS 3.0" Pulley . RLS Wing Plates . RLS CF Window Panel

06-19-2009, 12:05 PM	#400 (permalink)
apk919 ΒÄŅNED Join Date: Oct 2007 Location: Limbo Posts: 6,281 Images: 20	A Couple More... Engine ducting complete... Attached Images __________________ * 2009 Lotus Challenge Series Rookie Of The Year * (Thanks Jim, Tom, Jack, Rob & Spring Mountain Motorsports Ranch!) My videos: http://www.youtube.com/user/apk919

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