Slant *        6        Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum upgrade!
It is currently Sun Dec 10, 2017 11:47 pm

All times are UTC-08:00




Post new topic  Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Thu Jun 01, 2017 8:14 pm 
Offline
Turbo Slant 6
User avatar

Joined: Fri Dec 30, 2005 2:49 pm
Posts: 505
Location: Houston, TX
Car Model*:
This is probably a question I should have asked years ago. We run a pretty big trans cooler on the LeMons Dart, which has a mostly stock 904 with a deep pan. I only say "mostly" because the valve body may have been mildly breathed-upon for firmer shifts when I had it rebuilt back in college... but I honestly don't remember. It's all stock clutch packs, no V8 guts or anything. We leave it in Drive for races.

I don't think I've ever seen the trans temp get above 150 °F during a race. More often it's closer to 140. Is that too cool?

_________________
Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
Escape Velocity Racing


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 4:18 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 11559
Location: Blacksburg, VA
Car Model*:
Yes, it can be too cool. You can look up the optimal operating temp for an old school automatic, but IIRC it is 180-200 F. However, if it has lasted this many races, I might just leave everything alone!

Lou

_________________
"You mean you still have a Slant 6 in that thing?"


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 7:12 am 
Offline
TBI Slant 6

Joined: Thu Jun 04, 2015 6:19 pm
Posts: 123
Location: Florida
Car Model*:
I would be suspicious of your temp measuring system, that temp doesn't add up, Are you in Alaska? :D


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 9:00 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Mon Oct 21, 2002 11:08 am
Posts: 11559
Location: Blacksburg, VA
Car Model*:
Yeah, I agree it does sound very low for something getting that kind of workout, even with a big cooler. Might be the sensor is bad. Are you reading temp on the fluid output of the trans or closer to the input?? You want the output...

Lou

_________________
"You mean you still have a Slant 6 in that thing?"


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 9:20 am 
Offline
Board Sponsor & Moderator
User avatar

Joined: Thu Oct 17, 2002 7:27 pm
Posts: 10980
Location: Park Forest, Illinoisy
Car Model*:
180-200 is optimal. 160 is not unusual.

I can read trans temp on my Challenger, it rarely gets above 180, and it takes quite a lot of driving to get it there. :D

_________________
Proud supporter of Mike Jeffrey Racing Engines since 1999.


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 12:04 pm 
Offline
Turbo EFI
User avatar

Joined: Wed Mar 25, 2009 5:56 pm
Posts: 1242
Location: TEXAS
Car Model*:
Sounds like a WHACK gauge!
What does the "Water" temp run at usually?

_________________
1964 Dart GT


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 1:48 pm 
Offline
Board Sponsor & Contributor

Joined: Thu Oct 31, 2002 5:39 pm
Posts: 22669
Location: North America
Car Model*:
Also, what kind of trans fluid are you running? Some people are under the mistaken belief that Type-F fluid is "superior" -- it is not; it's an archaic fluid that is severely inferior in absolutely every performance and durability characteristic. Today's Dexron-VI handles higher temperatures than yesterday's fluids (viscosity doesn't change, varnish and sludge don't form).

_________________
一期一会
Too many people who were born on third base actually believe they've hit a triple.

Image


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 5:43 pm 
Offline
Turbo Slant 6
User avatar

Joined: Fri Dec 30, 2005 2:49 pm
Posts: 505
Location: Houston, TX
Car Model*:
Dart270 wrote:
Yeah, I agree it does sound very low for something getting that kind of workout, even with a big cooler. Might be the sensor is bad. Are you reading temp on the fluid output of the trans or closer to the input?? You want the output...

Lou

:oops:

Yeah, the temp sensor is mounted in the pan. I suppose that's not a very useful measurement, then.

_________________
Somehow I ended up owning three 1964 slant six A-bodies. I race one of them.
Escape Velocity Racing


Top
   
 Post subject:
PostPosted: Fri Jun 02, 2017 6:53 pm 
Offline
TBI Slant 6

Joined: Thu Jun 04, 2015 6:19 pm
Posts: 123
Location: Florida
Car Model*:
No, that should work, is it electrical or mechanical?

Do you have access to a thermal temp gun, just read the pan when hot, it should be close/slightly lower then your gauge reading,just to verify whats going on.


Top
   
 Post subject:
PostPosted: Sat Jun 24, 2017 8:46 pm 
Offline
TBI Slant 6

Joined: Sat Mar 19, 2016 7:25 pm
Posts: 108
Location: SW PA
Car Model*:
I just checked out a '10 F-150 Lariat w/the trans temp gauge function, I hit
trucks and cars w/a pretty harsh road test, if it's gonna slip or shudder hot
I want it to be on Me....not a customer after purchase...happened once on
a Chebby to Us already( converter clutch bits plug-up the cooler).
On the test (approx. 9 miles) the temp was hovering right around 150deg.
when I pulled it into My bay. I wouldn't lose one millisecond of sleep over it.


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 10 posts ] 

All times are UTC-08:00


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited