Best/safest way to block air to radiator
#51
11-17-2008, 01:19 PM
Re: Best/safest way to block air to radiator
I recently purchased the FIA winter grille cover for my '08 MMH. Before installing it (I have sized it and it looks like it will fit fine - although it is advertised as the '08 FEH one), I decided to get a scangauge. I want to keep an eye on my water temperature. I just installed the scan gaugeII, and it provides WT readings as one of its defaults. I understand from this forum (somewhere) that CHT or Cylinder Head Temperature is a more accurate reading to follow. I have found the codes for programmable Xgauge codes, but I CANNOT figure out how to do it. 
Can anyone share the steps involved with entering your own xgauge codes on a scanguageII? Many Thanks in advance. 
Can anyone share the steps involved with entering your own xgauge codes on a scanguageII? Many Thanks in advance. GaryG
#52
11-17-2008, 03:00 PM
Re: Best/safest way to block air to radiator
I went this route with the idea of leaving them in year round (or at least fall to spring).
The research I read, said that blocking the grill can increase mileage. Since we don't get 100+ temps here very often and I don't run the A/C day after day like you do in the south, I thought I might be able to leave them in most of the year.
#53
11-17-2008, 03:05 PM
Re: Best/safest way to block air to radiator
Do you have access for the engine block heater cord?
#54
11-17-2008, 03:58 PM
Re: Best/safest way to block air to radiator
You mean like this?
I've decided to try to go with the winter version.
Just figured out what the block heater checkbox was all about.
I've decided to try to go with the winter version.
Just figured out what the block heater checkbox was all about.
#55
11-17-2008, 05:59 PM
Re: Best/safest way to block air to radiator
I have them... Piece of advice when installing them. Back the clips on the screw all the way back to the nut and jam them there SLIGHTLY. This will make it so its easy to turn the thumbnut and orient the clip to pass through the grill. Hook it to the back side of the grill and then tighten the thumbnut WHILE PULLING ON IT the whole time to keep the clip in place behind the grill. With a bit of practice, its not too bad. But without jamming the clip and the pull trick its pretty frustrating!
#57
11-19-2008, 04:24 PM
Re: Best/safest way to block air to radiator
I changed my order by replying to the sales confirmation. First thing the next day was informed that wasn't a problem and I'd get a credit for the difference, however that style wasn't in stock so will take about 3 weeks before they can ship. Meanwhile we have a low of 9 degrees forecast for Friday morning.
#58
11-24-2008, 11:45 AM
Re: Best/safest way to block air to radiator
I've had a plastic sign painted black on my '07 MMH for a couple of months. I researched the melting point of these signs. No issue there! Heat will not get up that high!
However, the radiator is not completely blocked. The sign is about 25 wide, 18 high. It seems that the radiator is 29" wide X 18" high. I'm going to give the cardboard a try.
So far, there's been a slight improvement in FE with the plastic sign.
I have 38K miles on my MMH, just under two years ownership. I do alot of highway driving. I strive for numbers like GaryG, etc. The most I had was in the summer with 500+ MTE & 40 MPG.
I have the stock NAV & SC II.
However, the radiator is not completely blocked. The sign is about 25 wide, 18 high. It seems that the radiator is 29" wide X 18" high. I'm going to give the cardboard a try.
So far, there's been a slight improvement in FE with the plastic sign.
I have 38K miles on my MMH, just under two years ownership. I do alot of highway driving. I strive for numbers like GaryG, etc. The most I had was in the summer with 500+ MTE & 40 MPG.
I have the stock NAV & SC II.
#60
11-28-2008, 06:32 PM
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Re: Best/safest way to block air to radiator
220'F did not harm anything. That's not bad if it is just occasional.
That's a tad warm if it's there all the time.
The negative thing is, you don't have much "headroom" if you really go up a big hill, or carry lots of weight, or need to travel fast ( 75 MPH ) some day.
Consider 184 to 190 as "normal".
With the radiator block, I'd like to reccommend you keep it about 205'F.
Hope that helps,
-John
P.S. At 220'F all the time, you will probably use electricity all the time for the cooling fans, actually lowering your MPG. 205'F will not run the fans.
That's a tad warm if it's there all the time.
The negative thing is, you don't have much "headroom" if you really go up a big hill, or carry lots of weight, or need to travel fast ( 75 MPH ) some day.
Consider 184 to 190 as "normal".
With the radiator block, I'd like to reccommend you keep it about 205'F.
Hope that helps,
-John
P.S. At 220'F all the time, you will probably use electricity all the time for the cooling fans, actually lowering your MPG. 205'F will not run the fans.
