06-02-2013, 09:50 PM
|
#1 (permalink)
|
EcoModding Lurker
Join Date: Aug 2012
Location: Grand Haven, MI
Posts: 13
Thanks: 0
Thanked 5 Times in 3 Posts
|
Summer grill block: how hot will you go?
Greetings! I was curious, how hot will you let your engine run in the summer heat with your grill block.
Currently running my Focus with full grill block at ~217f, max. Thinking of partial grill block.
How hot will you go?
|
|
|
Today
|
|
|
Other popular topics in this forum...
|
|
|
06-02-2013, 10:34 PM
|
#2 (permalink)
|
EcoModding Lurker
Join Date: Mar 2012
Location: Holgate, Oh
Posts: 74
Thanks: 11
Thanked 39 Times in 24 Posts
|
With my car being OBD1, I don't have any exact numbers. I know when the weather is cold, it usually sits just below the half way mark. At half way, the fans kick in. I have had it this year get up to 3/4 the way up, but that was in almost 90 degrees and with low coolant. If it gets any hotter than that, i will pull over to let it cool.
__________________
2002 Jetta GLS TDI 345k+ miles, all mods listed in description 156HP, 298FT/LB
The eclipse has retired, but I still like seeing it around
|
|
|
06-03-2013, 03:12 AM
|
#3 (permalink)
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,230
Thanks: 7,254
Thanked 2,229 Times in 1,719 Posts
|
I only tried a full grill block at 5am and my engine was too warm. I think that it spent too much energy cooling itself because it actually got worse mileage than without a grill block.
|
|
|
06-03-2013, 10:20 AM
|
#4 (permalink)
|
Banned
Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,442
Thanks: 1,422
Thanked 737 Times in 557 Posts
|
Diesel_Dave points out that the grille block has become a problem, not a solution, if coolant temps rise above thermostat opening because of it.
I work a 6/2 week. The short runs to/from work weren't a problem, bu the days off with errands to run finally got me to remove the lower of four portions of the GB once we became full-time in A/C season (May 1 last yer, June 1 this year).
Over-inflation of tires and blcoking heat exchangers can have some serious consequnces (braking for one, engine longevity on the other).
.
.
|
|
|
06-03-2013, 01:51 PM
|
#5 (permalink)
|
Master EcoModder
Join Date: May 2011
Location: Indiana
Posts: 1,194
Thanks: 112
Thanked 511 Times in 213 Posts
|
Yes, you always want your thermostat to control your final operating temp. If your temps rise beyond the full open temp of the thermostat, then you've blocked the grill too much--a scary situation, because there's no longer any closed-loop control of coolant temp.
__________________
Diesel Dave
My version of energy storage is called "momentum".
My version of regenerative braking is called "bump starting".
1 Year Avg (Every Mile Traveled) = 47.8 mpg
BEST TANK: 2,009.6 mi on 35 gal (57.42 mpg): http://ecomodder.com/forum/showthrea...5-a-26259.html
|
|
|
06-03-2013, 09:23 PM
|
#6 (permalink)
|
EcoModding Lurker
Join Date: Aug 2012
Location: Grand Haven, MI
Posts: 13
Thanks: 0
Thanked 5 Times in 3 Posts
|
Quote:
Originally Posted by Diesel_Dave
Yes, you always want your thermostat to control your final operating temp. If your temps rise beyond the full open temp of the thermostat, then you've blocked the grill too much--a scary situation, because there's no longer any closed-loop control of coolant temp.
|
At what temperature does a typical thermostat open fully?
|
|
|
06-03-2013, 09:55 PM
|
#7 (permalink)
|
The Dirty330 Modder
Join Date: Dec 2011
Location: North East Ohio, USA
Posts: 642
Thanks: 10
Thanked 67 Times in 59 Posts
|
Quote:
Originally Posted by knochenhauer
At what temperature does a typical thermostat open fully?
|
Depends on the temp of the thermostat
And as far as the original question i keep it around 189F as after 205F my efans kick on which only happens with a full grill block
__________________
"The only real mistake is the one from which we learn nothing."
- Henry Ford
|
|
|
06-03-2013, 10:07 PM
|
#8 (permalink)
|
Human Environmentalist
Join Date: Aug 2010
Location: Oregon
Posts: 12,734
Thanks: 4,315
Thanked 4,467 Times in 3,432 Posts
|
My T-stat is fully open at 190 in my TSX, and the fan kicks in at 213. I initially did a full grill block during the winter and had no issues with trips of 30min or less, but driving an hour on the freeway had the fans cycling on every minute. Since then I have opened it up 25%.
I'm curious if blocking could cause other problems due to under-hood temperatures rising. Has anyone done a before and after comparison of under-hood temps? I'd hate to loose a PS pump, AC compressor, or some engine management computer due to a grill block. There are electronic ballasts for my headlights in the engine compartment and I'm concerned about the heat there as well.
On top of all this, the AC radiator relies on airflow from the grill for cooling. I'm wondering if the cabin cooling efficiency can drop too low even if the engine radiator is getting sufficient airflow?
|
|
|
06-03-2013, 10:08 PM
|
#9 (permalink)
|
Hydrogen > EV
Join Date: Apr 2012
Location: NW Ohio, United States
Posts: 2,025
Thanks: 994
Thanked 402 Times in 285 Posts
|
I keep 100%, my temp gauge temperature gets to 220* at its very highest, once in the past (v6 fascia, NO aero mods, I hit 223* on a 3 hour trip with the entire front of my car covered with tape) it went to 223, but not since. My temp gauge meter shows a 89.9*. Just a tiny little hair from being directly straight up, it leans towards cool. It has never been towards the hot end, so until I am further educated, I think I am good with my setup. She has seen as hot as 90*s outside.
I hope to learn from this thread, as I am trying to be careful, yet keep the engine warm.
|
|
|
06-03-2013, 11:13 PM
|
#10 (permalink)
|
Master EcoModder
Join Date: Oct 2009
Location: Texas
Posts: 3,523
Thanks: 2,203
Thanked 663 Times in 478 Posts
|
225 starts to worry me.
I went w/ just a lower grill ojn the kia sportage. Had a partial on upper and hit 225 so I removed it.
now I get 217 as a high
|
|
|
|