home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > maintenance & nonperformance

Reply
 
Thread Tools Display Modes
Old 07-02-2018, 03:01 PM   #1
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default Post your air ducting setups

Wondering if anyone has done any modifications to their cars (240) in order to help increase airflow through the cores at higher speeds. It is important to have the stock belly plan in place as we all know, as well as a good condition cooling system. Yes, ours is good with a new rad.

Having added an intercooler to two otherwise stock 240s, I've noticed they don't like to keep cool on the highway after a few minutes. We are using an electric fan and a temp probe in the radiator core. I do not like the temp probe idea because the highway air 'fools' it into thinking it's cool, and then it gets hot. With the fan constantly on, temps stay fine.

I have personally reverted to an intercooler in front of the condenser and am now using a stock fan clutch and shroud. No problems here but this is not an option at the moment on the other car.

So, any neat ducting work pictures out there? The plan is to make something out of cardboard and then finalize it with some thin sheetmetal.

Here’s one I saw at 100 acre woods rally.



__________________
Feedback Thread
Current:
93' 244 m47
93' 245 m47
90' 744 AW70
94' M-Edition Miata
95' Camry auto
Past:
80' 242gt m46
88' 245 m47
92' 940 turbo AW17


If you stop and think about it, itís literally not worth your time to get on TBOT every day and argue about politics.

Last edited by PromiseRing; 07-02-2018 at 03:12 PM..
PromiseRing is online now   Reply With Quote
Old 07-02-2018, 05:11 PM   #2
apachechef
Burnt Sierra Madre
 
Join Date: Jan 2009
Location: Fort Joe Smith, Klendathu
Default

Put your probe into the coolant before doing anything else.
__________________
Quote:
Originally Posted by lummert View Post
Dammit, Lummert.
Quote:
Originally Posted by Jesse8931 View Post
Well keep us updated on how your dumbass plan goes.
apachechef is offline   Reply With Quote
Old 07-02-2018, 05:18 PM   #3
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by apachechef View Post
Put your probe into the coolant before doing anything else.
Yup this is the next step before installing a proper switch in a Saab coolant T. I think Centason has some pics up where he put the temp probe in the upper rad hose.
PromiseRing is online now   Reply With Quote
Old 07-02-2018, 09:13 PM   #4
jjona5
Board Member
 
Join Date: Nov 2017
Location: Houston
Default

Lower hose is better.
jjona5 is online now   Reply With Quote
Old 07-02-2018, 10:13 PM   #5
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by jjona5 View Post
Lower hose is better.
The Saab t will be in lower hose but for now the temp probe will be fine in upper hose.
PromiseRing is online now   Reply With Quote
Old 07-02-2018, 10:21 PM   #6
jjona5
Board Member
 
Join Date: Nov 2017
Location: Houston
Default

Oh I read it wrong. Yes upper hose would be good for a temp probe.
jjona5 is online now   Reply With Quote
Old 07-02-2018, 10:33 PM   #7
jjona5
Board Member
 
Join Date: Nov 2017
Location: Houston
Default



This is mine
jjona5 is online now   Reply With Quote
Old 07-02-2018, 10:52 PM   #8
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by jjona5 View Post
Oh I read it wrong. Yes upper hose would be good for a temp probe.
I donít think it really matters as long as you adjust your temp switch accordingly. Iíve done upper and lower hose setups and both are fine.

Where is your temp switch? I didnít see it in your pic.
PromiseRing is online now   Reply With Quote
Old 07-02-2018, 11:23 PM   #9
dl242gt
Can play the blues
 
dl242gt's Avatar
 
Join Date: Jun 2002
Location: S NJ, a suburb of Phila.
Default

Do you have a one of the laser temp guns? It'll help you set up the temp switch so things trigger correctly.
dl242gt is online now   Reply With Quote
Old 07-02-2018, 11:32 PM   #10
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by dl242gt View Post
Do you have a one of the laser temp guns? It'll help you set up the temp switch so things trigger correctly.
Yup. Iíve had no issues setting things up, just curious about everyoneís ducting setups.
PromiseRing is online now   Reply With Quote
Old 07-03-2018, 04:09 AM   #11
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Wtf? I towed 240s with my 245 loaded up at 105F+ Ambient for 100+ mile trips with no temp issues ever. NPR plus e fan with Saab T and air to oil cooler

Something is wrong.
__________________
85 245 | 82 242| 75 245| 69 145 |66 122



Quote:
Originally Posted by BritishBrick
Donít bother, I would literally rather throw them away than give you the pleasure. I will never sell to you.
Jack is offline   Reply With Quote
Old 07-03-2018, 05:23 AM   #12
alschnertz
Enough already!
 
alschnertz's Avatar
 
Join Date: Oct 2009
Location: CT
Default

Quote:
Originally Posted by Jack View Post
Something is wrong.

I'd question whether the 25-year old (+) radiator is flowing properly.
__________________
Differences of opinions should be tolerated, but only if they're not too different. - Sharon Craig
alschnertz is offline   Reply With Quote
Old 07-03-2018, 09:51 AM   #13
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by Jack View Post
Wtf? I towed 240s with my 245 loaded up at 105F+ Ambient for 100+ mile trips with no temp issues ever. NPR plus e fan with Saab T and air to oil cooler

Something is wrong.
Do you have the front air dam and the belly pan in place?

Saab coolant tee is the difference here. Your efan will come on while on the highway whereas the temp probe will not. It would be nice to be able to hold temps without the fan coming on.
Quote:
Originally Posted by alschnertz View Post

I'd question whether the 25-year old (+) radiator is flowing properly.
Nope all new



You guys are missing the point. Iím not complaining that my car is overheating, Iím simply wanting to see air ducting setups but i guess those are overrated.
PromiseRing is online now   Reply With Quote
Old 07-03-2018, 10:55 AM   #14
Dicktater
Stiff Member
 
Dicktater's Avatar
 
Join Date: Nov 2009
Location: Nunya
Default

Quote:
Originally Posted by PromiseRing View Post
Iím simply wanting to see air ducting setups but i guess those are overrated.
Paging Smokeyfan.......because racecar
__________________


Quote:
Originally Posted by CaliMeatWagon View Post
I hope your treehouse gets cancer
Quote:
Originally Posted by Turbo Joe View Post
I buy a few when foodstamps get here because I have an investment strategy.....
Quote:
Originally Posted by volvo740b234/531 View Post
I smoke my weed and dream of an awesome life
Feedback >http://forums.turbobricks.com/showthread.php?t=197700
Dicktater is offline   Reply With Quote
Old 07-03-2018, 01:50 PM   #15
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

Quote:
Originally Posted by PromiseRing View Post
Do you have the front air dam and the belly pan in place?

Saab coolant tee is the difference here. Your efan will come on while on the highway whereas the temp probe will not. It would be nice to be able to hold temps without the fan coming on.
I didnít have both for a long time with same results maybe even a little cooler. This is on some random plastic/aluminum radiator I found

Idk about it coming on at highway speeds. I never noticed the voltage gauge flick.
Even if it does why do you care that it does ?

Thereís other projects you can do if you just want to tinker
Jack is offline   Reply With Quote
Old 07-03-2018, 02:05 PM   #16
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

^ interesting. And really the fan should not ever have to come on at highway speeds. Highway air should be more powerful than any efan setup out there. Sure it’s not a huge deal for the fan to come on, but it points to a very inefficient setup. And yes I just want to tinker but tinkering leads to learning by trial and error (I’m good at error), oh and it looks good too. Functional aero. It’s actually *extremely* important on some cars that lack airflow and are driven hard. No telling how hard my friend drives his car. I warned him that skinny rod +t with 200k miles might not be the most reliable setup but should be fine for awhile.
PromiseRing is online now   Reply With Quote
Old 07-03-2018, 02:12 PM   #17
Jack
junkman
 
Jack's Avatar
 
Join Date: Jul 2011
Location: The Ass Cheek Of History
Default

I wonder if years of oil caked on make a difference. All my stuff is clean clean clean
Jack is offline   Reply With Quote
Old 07-03-2018, 02:15 PM   #18
PromiseRing
We don't even like Volvos
 
PromiseRing's Avatar
 
Join Date: Feb 2014
Location: Missouri
Default

Quote:
Originally Posted by Jack View Post
I wonder if years of oil caked on make a difference. All my stuff is clean clean clean
On the engine?? I doubt it, his is pretty clean anyway. We pressurewashed everything before the turbo conversion. It had a pretty substantial power steering leak.

For now he hardwired the fan on at highway speeds and it seems to be holding temps just fine. It’s about 90-100F here every day recently, and 70%+ humidity
PromiseRing is online now   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 11:37 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.