home register FAQ memberlist calendar

Go Back   Turbobricks Forums > Mechanical > performance & modifications

Reply
 
Thread Tools Display Modes
Old 06-05-2017, 03:31 PM   #51
mikep
The MP
 
mikep's Avatar
 
Join Date: May 2003
Location: 38° 27' N 75° 29' W
Default

AA+++dynoer, would buy/golfclap/tie shoelaces again.
__________________
Quote:
Originally Posted by centason View Post
I like having conversations with kids. Grownups never ask me what my third favorite reptile is.
Quote:
Originally Posted by 4x4_Welder View Post
From psuedophilisophical to all penis in less than a page.
Quote:
Originally Posted by Ursan View Post
Moses had hundreds of rules. Y U NO Leviticus?
mikep is offline   Reply With Quote
Old 06-05-2017, 04:18 PM   #52
Marvelous3
Who engineered this?
 
Marvelous3's Avatar
 
Join Date: Nov 2002
Location: Atlanta
Default

Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
__________________

1990 240dl Kaplhenke Coilover Daily
1991 245+16 Valve Turbo Microsquirt
Need Hyundai or Genesis parts? PM me for Genuine Hyundai or Genesis parts
Marvelous3 is offline   Reply With Quote
Old 06-05-2017, 04:36 PM   #53
Redwood Chair
K-jet For Life
 
Redwood Chair's Avatar
 
Join Date: Mar 2007
Location: SF CA
Default

@ 7.5:1 I'm running 87 because 93 is a waste of money.

Oh and with a big hot turbo and kitty strapped to the side of the engine I want airflow at all times so it's mechanical & tropical for me...
__________________
Raise The Lowered


Image hosted by servimg.com

Quote:
Originally Posted by hiperfauto View Post
Folks on here don't know a good deal when they see it.
how psi a stock can support?

Redwood Chair is offline   Reply With Quote
Old 06-05-2017, 05:12 PM   #54
KeizerBrickGuy
Board Member
 
KeizerBrickGuy's Avatar
 
Join Date: Jun 2016
Location: Keizer, OR
Default

So a tropical would beneficial for just about any car? It's quicker to kick on to cool and turns off a bit faster, I would assume.
__________________
-Stephen
Quote:
Originally Posted by 87_240TURBO View Post
#mclovethesenuts

-My car: White 1991 244, 308k miles. B230F LH2.4, AW70, R134a retro. Thrush glasspack, anthracite refinished Coronas
-Wife's car: White 1990 244DL, T cam, 160k miles.B230F LH2.4, AW70 w/aux cooler, Duracool AC, purple refinished Virgos, tow hitch, ipd wagon overload springs.
-PSM 2002 Subaru WRX wagon: 120k miles, Perrin TBE, Perrin turbo inlet, intake, and Y-pipe, GrimmSpeed cross pipe.
Rebuilding EJ207 shortblock to swap in this summer.
KeizerBrickGuy is offline   Reply With Quote
Old 06-05-2017, 05:44 PM   #55
James10952001
Board Member
 
Join Date: Feb 2007
Location: Woodinville, WA
Default

Cool to see some actual Volvo specific data here, thanks for taking the time to gather and post that. So it's pretty much as I suspected, the mechanical fan doesn't draw all that much power. The reduced noise and cleaner engine bay is enough that I'm still tempted to convert to electric fan though.
James10952001 is offline   Reply With Quote
Old 06-05-2017, 06:45 PM   #56
VeroDubs
The Big Swede
 
VeroDubs's Avatar
 
Join Date: Oct 2015
Location: Vero Beach, FL
Default

Quote:
Originally Posted by James10952001 View Post
Cool to see some actual Volvo specific data here, thanks for taking the time to gather and post that. So it's pretty much as I suspected, the mechanical fan doesn't draw all that much power. The reduced noise and cleaner engine bay is enough that I'm still tempted to convert to electric fan though.
This is my reasoning. Haha
__________________
My '89 Brick -"The Big Swede"
VeroDubs is offline   Reply With Quote
Old 06-05-2017, 06:50 PM   #57
James10952001
Board Member
 
Join Date: Feb 2007
Location: Woodinville, WA
Default

On that note, do all LH 2.4 ECUs support controlling the electric fan? What if I burn a ROM from a 940 with factory e-fan and put it in the ECU of my 740? Using the ECU to control the fan seems like the cleanest way of doing it.
James10952001 is offline   Reply With Quote
Old 06-05-2017, 06:56 PM   #58
thismachine13
Board Member
 
Join Date: Sep 2015
Location: Arkansas
Default

Quote:
Originally Posted by James10952001 View Post
Cool to see some actual Volvo specific data here, thanks for taking the time to gather and post that. So it's pretty much as I suspected, the mechanical fan doesn't draw all that much power. The reduced noise and cleaner engine bay is enough that I'm still tempted to convert to electric fan though.
That is what you got from his "scientific" test? A worn out mechanical fan on a sketchy running 244 from 3 runs that may or may not have had decent gas coursing through the fuel line.

Sounds legit.
thismachine13 is offline   Reply With Quote
Old 06-05-2017, 07:55 PM   #59
James10952001
Board Member
 
Join Date: Feb 2007
Location: Woodinville, WA
Default

Sounds close enough, and aligns with my hypothesis. The test was done both with and without the fan and shows no correlation with presence or absense of the fan. I'd welcome more scientific testing using a car that is in tip top stage zero condition but this is at least some Volvo specific data. It's not proof, but it's a start.
James10952001 is offline   Reply With Quote
Old 06-05-2017, 09:18 PM   #60
GTJordan
Been here for too long
 
GTJordan's Avatar
 
Join Date: Jul 2002
Location: Edmonton AB
Default

Is there a way to lock the fan hub and run a dyno again? Not sure how you could lock it up though?
__________________
80 242- 2.5L, T5, Porsche brakes, short billies and kaplenkhe suspension, trutrack.
Project Thread- http://www.turbobricks.com/forums/sh...d.php?t=324470
GTJordan is offline   Reply With Quote
Old 06-05-2017, 09:27 PM   #61
blkaplan
50 shades of beige
 
blkaplan's Avatar
 
Join Date: Jul 2002
Location: Rockville, MD
Default

Quote:
Originally Posted by Marvelous3 View Post
Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
only if you tune for it.
__________________
www.BEIGEPOWER.com
Kaplhenke Racing Facebook
Quote:
Originally Posted by DarkKratoz View Post
The only safe bet is Ben.©
blkaplan is offline   Reply With Quote
Old 06-05-2017, 10:59 PM   #62
gsellstr
Vintage anti-ricer
 
gsellstr's Avatar
 
Join Date: Oct 2004
Location: Somewhere in a northern California smog bank
Default

For test purposes only, bend an L bracket, under a water pump bolt, engaged into the fins on the fan clutch.
__________________
RIP
Doug Williams aka Mr. Doug 4/15/2009
Pete Fluitman aka fivehundred 7/14/2013
Mick Starkey aka TrickMick 1/10/14

74 144 B20
http://forums.turbobricks.com/showthread.php?t=224983

90 745Ti
http://forums.turbobricks.com/showthread.php?t=334698

If you need Superpro bushings PM me for price and availability!
gsellstr is offline   Reply With Quote
Old 06-05-2017, 11:46 PM   #63
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

Quote:
Originally Posted by Marvelous3 View Post
Seems that instead of swapping efans everyone should be running 93 instead. Those gains from good gas alone are silly.
that's more due to the year old ****ty gas that was already in the tank than it was going from freshish 87 to fresh 93. I suspect the sweet point would be mid-grade, or 87 with a gallon of e85 if you can get it.
__________________
"They bum rushed them in their own crib, they drank all their beer, they partied with their ladies and they left with the trophy"

Now with in-house Dyno tuning!

Megasquirt Tuning!
Plug and play LH 2.4 Megasquirt, now with stealth mode!
linuxman51 is offline   Reply With Quote
Old 06-05-2017, 11:49 PM   #64
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

Quote:
Originally Posted by thismachine13 View Post
That is what you got from his "scientific" test? A worn out mechanical fan on a sketchy running 244 from 3 runs that may or may not have had decent gas coursing through the fuel line.

Sounds legit.
I'm not saying I've had a lot of volvos on the dyno over the past... decade... but if the mechanical fan were a big deal, this car in particular would have shown the most gains with and without.



but, get your perfect car, drive your ass down from BFE ark, and we can do a rinse repeat for $100/hr whenever you're ready.
linuxman51 is offline   Reply With Quote
Old 06-05-2017, 11:50 PM   #65
speedn_j
Board Member
 
speedn_j's Avatar
 
Join Date: Sep 2005
Location: bakersfield, ca
Default

How about a hydraulic efan?
__________________
i'm too sexy for RWD


2000 mb c230 kompressor
2000 ducati 748 45k miles
2004 jeep grand Cherokee overland
1988 volvo 245
speedn_j is offline   Reply With Quote
Old 06-05-2017, 11:52 PM   #66
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

Quote:
Originally Posted by speedn_j View Post
How about a hydraulic efan?
I was thinking peltier myself...
linuxman51 is offline   Reply With Quote
Old 06-05-2017, 11:56 PM   #67
speedn_j
Board Member
 
speedn_j's Avatar
 
Join Date: Sep 2005
Location: bakersfield, ca
Default

My jeep has a hydraulic fan. Runs off the power steering pump. It's quiet, I don't even hear or feel it working. No matter how hot it gets, whether if I'm towing or offroading..the engine temp is solid.
speedn_j is offline   Reply With Quote
Old 06-06-2017, 12:12 AM   #68
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

Quote:
Originally Posted by gsellstr View Post
For test purposes only, bend an L bracket, under a water pump bolt, engaged into the fins on the fan clutch.
..no. they don't generally stay coupled that long, once the car gets above a reasonable mph, the airflow across the front from driving through the air outweighs what the fan produces, and cools things down enough where the fan decouples and freewheels again. A frozen fan clutch is a worst case scenario that requires a repair, not a normal use-case scenario. Might as well lock one ebrake shoe up and hit the rollers "just to see", or pull a plug wire.


Quote:
Originally Posted by speedn_j View Post
My jeep has a hydraulic fan. Runs off the power steering pump. It's quiet, I don't even hear or feel it working. No matter how hot it gets, whether if I'm towing or offroading..the engine temp is solid.
that does sound like something decidedly chrysler/mercedes, that's funny (sorry). probably not all that bad though really aside from the plumbing aspect.


So, from the peanut gallery of pot-shot-takers, I expect to see some dissenting dyno graphs this weekend. Pony up and put up, or shut up. I might have a dyno in my back yard that I do with as I please, that does not mean it was free or that my time is free.
linuxman51 is offline   Reply With Quote
Old 06-06-2017, 01:29 AM   #69
JerryJS8
der Junge
 
JerryJS8's Avatar
 
Join Date: Sep 2004
Location: Normal Saxony
Default

Quote:
Originally Posted by James10952001 View Post
On that note, do all LH 2.4 ECUs support controlling the electric fan? What if I burn a ROM from a 940 with factory e-fan and put it in the ECU of my 740? Using the ECU to control the fan seems like the cleanest way of doing it.
Not all ECUs support an e-fan, so grab one from a doner that has one installed from the factory. Forget swapping chips and just swap the whole ECU. As long as the engine is the same and the 940 didn't have an immobilizer installed it should work out just fine. AFAIK, If there was an immobilizer installed, then you'll have to get a chip burned to replace the onboard one. That's what I did for my project 740 (see signature) with a 984 ECU, works great with the computer controlled fan.

You'll need to populate pins 10 and 11 on the harness to run a wire to the low and high speed relays on the fan, but it's simple, easy and avoids hacking radiator hoses to install thermal switches.

A list of ECUs with information on motors and if it has an immobilizer can be found here: http://forums.turbobricks.com/showthread.php?t=84817
__________________
- 1987 244 (hand-me-down first car)
- 1990 744 (white with red leather)
- 1992 965 (green with tan leather)
- 1990 744 16v (pegleg drift can)
- 1992 480 (Renault disaster)

- 1989 745 16v
- 1991 744 (SE) Turbo 16v (restauration project)

Quote:
Originally Posted by gashog View Post
Unique for sure.
I don't think anyone is going to tell you it looks bad.
Kinda can't go wrong under the hood.

Last edited by JerryJS8; 06-06-2017 at 09:46 AM..
JerryJS8 is offline   Reply With Quote
Old 06-06-2017, 06:57 AM   #70
thismachine13
Board Member
 
Join Date: Sep 2015
Location: Arkansas
Default

Just got a call from a buddy who works inside GM and the 2020 Corvette will be using a mechanical fan. Apparently the leak of this news is creating a wave of change within the auto industry. All car manufacturers intend to switch to mechanical fans by 2021. The difference they say between mechanical fans and efans is infinitesimal. As well hand cranks to start the engine will be offered as an option.
thismachine13 is offline   Reply With Quote
Old 06-06-2017, 07:45 AM   #71
Broke4speed
Board Member
 
Broke4speed's Avatar
 
Join Date: Oct 2009
Location: Marionville, Ontario, Canada
Default

Seriously though, the only real reason to swap to e-fan is to get rid of that infernal noise...and to make space in the engine bay for anything you need.
__________________
1984 B21T (formerly A), AW71(minus L).
Broke4speed is offline   Reply With Quote
Old 06-06-2017, 09:00 AM   #72
linuxman51
BRANDSCHUTZVORSCHRIFTEN!
 
linuxman51's Avatar
 
Join Date: Dec 2002
Location: mont, AL
Default

Quote:
Originally Posted by thismachine13 View Post
Just got a call from a buddy who works inside GM and the 2020 Corvette will be using a mechanical fan. Apparently the leak of this news is creating a wave of change within the auto industry. All car manufacturers intend to switch to mechanical fans by 2021. The difference they say between mechanical fans and efans is infinitesimal. As well hand cranks to start the engine will be offered as an option.
your mom called to make an appointment, and mentioned that you need to move out of the basement.
linuxman51 is offline   Reply With Quote
Old 06-06-2017, 09:05 AM   #73
JerryJS8
der Junge
 
JerryJS8's Avatar
 
Join Date: Sep 2004
Location: Normal Saxony
Default

Quote:
Originally Posted by Broke4speed View Post
Seriously though, the only real reason to swap to e-fan is to get rid of that infernal noise...
^
JerryJS8 is offline   Reply With Quote
Old 06-06-2017, 09:20 AM   #74
Powder>Paint
Board Member
 
Join Date: Jan 2017
Location: Bay Area CA
Default

Quote:
Originally Posted by linuxman51 View Post
your mom called to make an appointment, and mentioned that you need to move out of the basement.



Omg Im dead brahahaha
Powder>Paint is offline   Reply With Quote
Old 06-06-2017, 09:38 AM   #75
Stiggy Pop
Board Member
 
Stiggy Pop's Avatar
 
Join Date: Feb 2011
Location: Granville, MA
Default

Quote:
Originally Posted by linuxman51 View Post
..
that does sound like something decidedly chrysler/mercedes, that's funny (sorry). probably not all that bad though really aside from the plumbing aspect.
First one I saw was on a Lexus SC400
__________________
'79 242
943 pickup
Stiggy Pop is offline   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 07:02 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.