How hot does your car run idle & cruise? - Page 3 - Chevelle Tech
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post #31 of 48 (permalink) Old May 15th, 19, 3:29 PM
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Rick
 
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Re: How hot does your car run idle & cruise?

For me, it was Rockauto part number 35879 at $31.79. This is their choice of replacement cooling fan controller for a 1999 Chevrolet Silverado 1500 or GMC Sierra with a 5.3L LS engine.

I think you can get it slightly less expensive on Ebay.

Rick

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1970 El Camino under Reconstruction - 5.3L LS VORTEC Engine and 4L60E Transmission
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post #32 of 48 (permalink) Old May 15th, 19, 3:45 PM
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Kerry
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by tacomatrd View Post
Which controller are you using exactly?

I am about to order my radiator and am waiting to head to the junk yard to find a fan(or two).

Thinking LT1 style fans or Mark VIII
This one. The 2SP.

Relay Controllers and Accessories
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post #33 of 48 (permalink) Old May 15th, 19, 5:32 PM
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Ron
 
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Re: How hot does your car run idle & cruise?

69 Camaro

491...10 to 1...252/254 hyd roller...AFR 315's
EMP/Stewart 160 thermo with bypass holes
Edelbrock aluminum Victor high volume water pump
Timing...24/38 with vac advance(ported)
Probe is in the intake manifold

Becool aluminum direct fit radiator
Summit dual 11" HO fans(spal copy)..2760 cfm
150 amp alt

I have had this new radiator in the car for about 1 month. Prior radiator was a 4 core copper brass from US radiator. New set up so far has worked killer. Runs 170-175 at idle or freeway cruising. The temps have only been in the low/mid 80's so curious to see if anything changes in the 90's. I dont drive the car when its in triple digits.
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69 Camaro
491/AFR 315/Straub hyd roller/pump 91
TH400/GV OD/9" 3.50's/ 255/60/15 DR

10.86 at 124.8
3670 with driver

Last edited by dirtlips408; May 15th, 19 at 5:37 PM. Reason: more info for response
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post #34 of 48 (permalink) Old May 16th, 19, 9:41 AM
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George
 
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Re: How hot does your car run idle & cruise?

The solid roller 388 in the 71 is just under 12:1 compression. Weiand hiflow water pump. Advance Auto $69 aluminum 1 row radiator with plastic tanks, factory clutch fan and shroud, 180 thermostat. It ran right at 180 pretty much all the time. Would be 195ish at end of a run.

The wagon has a 454 with unknown internals. Factory clutch fan from the 388 and a Champion 3 row radiator. Runs 180-185 all the time.

'71 Malibu
3580 #, Carbed 6.0l LS swap in process
T-350, PTC 9" converter, 12 bolt, spool, 3.90 gears, MT ET R 275/60/15

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'72 Greenbrier Wagon: 454, 700R4, 12 bolt with 3.73
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post #35 of 48 (permalink) Old May 16th, 19, 12:26 PM
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Re: How hot does your car run idle & cruise?

solid roller 383 11.5:1
Dewitts radiator
hi flow pump
160 stat
16 in spal

Wants to run around 180 or so in 70 deg heat
think an oil cooler would help
WIll buy a controller in a last attempt to keep it at 180 max. Like170-175 better car seems peppier there
Wiht lash I dont like the "up to 200" then back down"...or using a cooler switch and having it run all the damn time.

he 350 would run 10 deg cooler on avg.

Quote:
This post is a duplicate of a post that you have posted in the last five minutes.
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post #36 of 48 (permalink) Old May 16th, 19, 12:28 PM Thread Starter
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Chris
 
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Re: How hot does your car run idle & cruise?

This thread is showing that a lot of electric fan setups are working extremely well!

1971 Chevelle SS454, T56 Magnum 6 speed, 3.31 Posi

Youtube Channel. https://www.youtube.com/user/SS454LS6
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post #37 of 48 (permalink) Old May 16th, 19, 12:45 PM
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Ron
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by -SS454- View Post
This thread is showing that a lot of electric fan setups are working extremely well!

I think one thing that helps alot is the fan set ups that have the flaps in the shroud the allows the air to flow at highway speeds.
-SS454- likes this.

69 Camaro
491/AFR 315/Straub hyd roller/pump 91
TH400/GV OD/9" 3.50's/ 255/60/15 DR

10.86 at 124.8
3670 with driver
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post #38 of 48 (permalink) Old May 16th, 19, 12:52 PM
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Gene
 
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Re: How hot does your car run idle & cruise?

If it aint broke....

67 Chevelle
439 10>25:1 w/ LEAN azz tripower carburetion
1985 Z/28 clutch 7 blade GM fan
67 shroud
3 core Harrison, w/ modern cores
Carquest NEW pump ( took a few tries to get a proper casting btw )
RobertShaw Hiflow stat
**MANUAL TRANS** ( i think this makes a huge difference)

Cant get it to run hotter than just above t stat opening. Although I had to rebuild the engine after the old WP went unexpectedly, and it didnt take long for the oil rings to lose tension. Like 5-7 minutes of run time w/o noticing the temp gauge had pegged.

Stock works mint for me, but again, not having transmission fluid to cool likely makes it work as mint as it does. My Harrison is not a 67 and does have the AT ports on the bottom.

Gene
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post #39 of 48 (permalink) Old May 16th, 19, 12:52 PM
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by dirtlips408 View Post
I think one thing that helps alot is the fan set ups that have the flaps in the shroud the allows the air to flow at highway speeds.
Yep! That is why I am heavily looking at the LT1 fans and want to roam the junkyard looking for other ideas--they have the flaps where the ones you buy as aftermarket repos dont.

I would say that I am going to switch over to electric fans and a griffin 2x1.25 radiator when I return.
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post #40 of 48 (permalink) Old May 16th, 19, 4:58 PM
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Chris
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by -SS454- View Post
This thread is showing that a lot of electric fan setups are working extremely well!


If you going to make the switch, look into the ford windstar fans. I run them on my car, twin fan setup. Rated at 4500ish cfm. The shroud is a perfect size, it just needs a little trimming around the tanks to make it perfect.


If you want to up your cooling game to the next level look into a electric waterpump. I purchased a stewart brushless motor water pump. You simple cut it into the lower RAD hose and wire it up. I went from 220 all the time down to 170 at any speeds on +30-32C days. massive change.

1968 Beaumont
502 big block
Stock looking, definitely not stock sounding
HP and ET not determined yet!
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post #41 of 48 (permalink) Old May 16th, 19, 5:22 PM
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by GoFast Beaumont View Post
If you going to make the switch, look into the ford windstar fans. I run them on my car, twin fan setup. Rated at 4500ish cfm. The shroud is a perfect size, it just needs a little trimming around the tanks to make it perfect.


If you want to up your cooling game to the next level look into a electric waterpump. I purchased a stewart brushless motor water pump. You simple cut it into the lower RAD hose and wire it up. I went from 220 all the time down to 170 at any speeds on +30-32C days. massive change.
I love seeing things like this, now I can add to my list of fans to look for at the junk yard.

Do you have a picture of this water pump? I likely won't switch to it, but if I ever build a dedicated race car, that is what I would go to.
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post #42 of 48 (permalink) Old May 16th, 19, 5:48 PM Thread Starter
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Chris
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by GoFast Beaumont View Post
If you going to make the switch, look into the ford windstar fans. I run them on my car, twin fan setup. Rated at 4500ish cfm. The shroud is a perfect size, it just needs a little trimming around the tanks to make it perfect.


If you want to up your cooling game to the next level look into a electric waterpump. I purchased a stewart brushless motor water pump. You simple cut it into the lower RAD hose and wire it up. I went from 220 all the time down to 170 at any speeds on +30-32C days. massive change.
How reliable are the electric pumps these days?

1971 Chevelle SS454, T56 Magnum 6 speed, 3.31 Posi

Youtube Channel. https://www.youtube.com/user/SS454LS6
Instagram: https://www.instagram.com/ss454_ls6/
Twitter: https://twitter.com/SS454_LS6
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post #43 of 48 (permalink) Old May 16th, 19, 6:02 PM
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Beth
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by tacomatrd View Post
Yep! That is why I am heavily looking at the LT1 fans and want to roam the junkyard looking for other ideas--they have the flaps where the ones you buy as aftermarket repos dont.

I would say that I am going to switch over to electric fans and a griffin 2x1.25 radiator when I return.
Look at the Cold Case 2 x 1.25 aluminum radiator ($360)

Plus it looks just like stock if you paint it black :

https://www.summitracing.com/parts/rad-che542

67 Chevelle convertible, 138 vin, original 4 speed, bucket seats, 12 bolt, Marina Blue with black interior
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post #44 of 48 (permalink) Old May 16th, 19, 11:32 PM
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by nashville beth View Post
Look at the Cold Case 2 x 1.25 aluminum radiator ($360)

Plus it looks just like stock if you paint it black :

https://www.summitracing.com/parts/rad-che542
Oh I am looking at this griffin: https://www.summitracing.com/parts/g...2-xs/overview/


Fans appear to be a little too wide though...
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post #45 of 48 (permalink) Old May 20th, 19, 8:37 PM
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Chris
 
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Re: How hot does your car run idle & cruise?

Quote:
Originally Posted by -SS454- View Post
How reliable are the electric pumps these days?
10,000 hr life cycle is what stewart warner says. It is a brushless motor.


Most others are around 2-2500hr life cycle.


Most OE cars/trucks might make it to half that. As well electric pumps are becoming standard equipment on modern cars now as it offers better control with water cooling if tied up with a PWM controller.


Using a PWM controller with a electric water pump would allow you to not run a thermostat any longer and really maximize coolant flow WHILE still allowing adequate warm-up times.


Current setup is a Performance World Radiator (MOPAC), stewart warner electric pump, Spectra Ford Windstar fans, and a Performance World thermostat.


At this point, even with a 4`` thick intercooler in front of the radiator, it only takes 1 fan to drop engine temp from 190 to 180, at idle and slow movement(less than 30km.hr) Approx 3 minutes to complete the task. Daytime temp was 15-18C. Plenty of cooling left for highway driving and hotter days.

1968 Beaumont
502 big block
Stock looking, definitely not stock sounding
HP and ET not determined yet!
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