TB Coolant Bypass Mod...anyone do this?
01-06-2012, 12:04 PM
#82
Radical Member
That's just about impossible. On one hand people on here claim a couple mpg bump with a CAI but with a cooler TB it causes a decrease in mileage. It will have very little effect on the incoming air charge. It's one of those "why not it's free" mods and every little bit helps but you won't feel a difference in power or fuel economy.
The bypass mod dropped the temp of the incoming air quite a bit, which probably helps in summer, but now that its balls cold outside, I want to keep my engine warm!
Just my observation
01-06-2012, 12:09 PM
#83
The Track Terror
^^^ no point in keeping your engine warm at all...the colder the better actually for performance and MPG...don't worry about your engine getting too cold, there's *plenty* of little explosions going on in there that keep it plenty warm.
But seriously, colder is ALWAYS better for engine performance/longevity/MPG...
But seriously, colder is ALWAYS better for engine performance/longevity/MPG...
01-06-2012, 12:41 PM
#84
Team Owner
I have a scangauge hooked up to my car, and IAT and coolant temp play the largest role in MPG from what I've seen. well, other than driver input. When its 32* outside, my IAT reads about 40*, and at 60 mph i will get roughly 23 mpg. Same road, same speed, but 50* outside, and IAT showing 65/70*, Im getting 28mpg. Coolant temp being 178 on both trials. A/C off.
The bypass mod dropped the temp of the incoming air quite a bit, which probably helps in summer, but now that its balls cold outside, I want to keep my engine warm!
Just my observation
The bypass mod dropped the temp of the incoming air quite a bit, which probably helps in summer, but now that its balls cold outside, I want to keep my engine warm!
Just my observation
To get an accurate mpg comparison you would have to do 10+ drives going the same way on the same road at the same ambient temp each time. Doing one test going one direction and the other going a different direction is not valid. I get 26mph on the way to work, 35 on the way home because of an altitude change that I can't feel.
^^^ no point in keeping your engine warm at all...the colder the better actually for performance and MPG...don't worry about your engine getting too cold, there's *plenty* of little explosions going on in there that keep it plenty warm.
But seriously, colder is ALWAYS better for engine performance/longevity/MPG...
But seriously, colder is ALWAYS better for engine performance/longevity/MPG...
Hot oil, cold intake charge is best for power and mpg.
With an aluminum headed engine like ours, you need heat to keep efficiency up. The cast iron headed engines could run a little cooler but still kept plenty heat in the combustion chambers.
They're not explosions but rather a very fast burn. There's more than enough radiator capacity to run the engine too cold if a thermostat failed.. The thermostat is there for a reason.
01-06-2012, 12:46 PM
#85
Safety Car
This is a lot of merit to what 9632tl is saying. Cold start-ups are killer to your MPG. Colder weather also drops MPG compared to warmer weather.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
01-06-2012, 12:50 PM
#86
Team Owner
This is a lot of merit to what 9632tl is saying. Cold start-ups are killer to your MPG. Colder weather also drops MPG compared to warmer weather.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
01-06-2012, 01:15 PM
#87
Safety Car
This could be the case because in the summer the warmup process takes approx 2 minutes. On cold days, it is maybe over 6 minutes. Standard procedure for me is I don't put it into Drive until the temp needle moves above the lowest notch. And without precats and with all of my cooling mods, it takes a lot to buildup heat during the warmup.
Side note due to a flash back - I still remember the first week when I got my car. I drove to the store and went to do my grocery shopping. About one hour later, I get in the car to go home. My mouth fell open when I seen the temp gauge STILL at the same position as when I turned it off. Heat Retention to the Max.
Side note due to a flash back - I still remember the first week when I got my car. I drove to the store and went to do my grocery shopping. About one hour later, I get in the car to go home. My mouth fell open when I seen the temp gauge STILL at the same position as when I turned it off. Heat Retention to the Max.
01-06-2012, 01:23 PM
#88
Team Owner
This could be the case because in the summer the warmup process takes approx 2 minutes. On cold days, it is maybe over 6 minutes. Standard procedure for me is I don't put it into Drive until the temp needle moves above the lowest notch. And without precats and with all of my cooling mods, it takes a lot to buildup heat during the warmup.
Side note due to a flash back - I still remember the first week when I got my car. I drove to the store and went to do my grocery shopping. About one hour later, I get in the car to go home. My mouth fell open when I seen the temp gauge STILL at the same position as when I turned it off. Heat Retention to the Max.
Side note due to a flash back - I still remember the first week when I got my car. I drove to the store and went to do my grocery shopping. About one hour later, I get in the car to go home. My mouth fell open when I seen the temp gauge STILL at the same position as when I turned it off. Heat Retention to the Max.
01-18-2012, 09:09 PM
#89
Little update for the TB Coolant Bypass Mod in super cold weather
When I got back from work sunday morning it was -28C (-18F) I got home fine, but when I got back in the car around 5pm sunday, the CEL came ON and the VSA too and no thottle response from the gas pedal. I tought the APP sensor died on me... I got the car towed to the dealer since it's still fully warantied monday and they found nothing on the APP side, they just cleaned the TB and clear the CEL code. So to them and I think they are right, they sayed that slight frost happen in the TB and then the CEL came ON... -28C are not common here but I think I will plug the TB coolant line for winter season from now on
When I got back from work sunday morning it was -28C (-18F) I got home fine, but when I got back in the car around 5pm sunday, the CEL came ON and the VSA too and no thottle response from the gas pedal. I tought the APP sensor died on me... I got the car towed to the dealer since it's still fully warantied monday and they found nothing on the APP side, they just cleaned the TB and clear the CEL code. So to them and I think they are right, they sayed that slight frost happen in the TB and then the CEL came ON... -28C are not common here but I think I will plug the TB coolant line for winter season from now on
01-18-2012, 10:37 PM
#90
Team Owner
Little update for the TB Coolant Bypass Mod in super cold weather
When I got back from work sunday morning it was -28C (-18F) I got home fine, but when I got back in the car around 5pm sunday, the CEL came ON and the VSA too and no thottle response from the gas pedal. I tought the APP sensor died on me... I got the car towed to the dealer since it's still fully warantied monday and they found nothing on the APP side, they just cleaned the TB and clear the CEL code. So to them and I think they are right, they sayed that slight frost happen in the TB and then the CEL came ON... -28C are not common here but I think I will plug the TB coolant line for winter season from now on
When I got back from work sunday morning it was -28C (-18F) I got home fine, but when I got back in the car around 5pm sunday, the CEL came ON and the VSA too and no thottle response from the gas pedal. I tought the APP sensor died on me... I got the car towed to the dealer since it's still fully warantied monday and they found nothing on the APP side, they just cleaned the TB and clear the CEL code. So to them and I think they are right, they sayed that slight frost happen in the TB and then the CEL came ON... -28C are not common here but I think I will plug the TB coolant line for winter season from now on
01-19-2012, 09:23 AM
#91
#1: I remember seeing this thread a while ago and I remember seeing a very small filter some where. Can someone clarify?
#2: Will this pass NY inspection?
#3: WHY ARE THERE TWO THREADS ON THIS?!
#2: Will this pass NY inspection?
#3: WHY ARE THERE TWO THREADS ON THIS?!
01-20-2012, 03:36 PM
#93
Advanced
This is a lot of merit to what 9632tl is saying. Cold start-ups are killer to your MPG. Colder weather also drops MPG compared to warmer weather.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
^^ Thats awesome and some real dedication!
01-20-2012, 06:52 PM
#94
This is a lot of merit to what 9632tl is saying. Cold start-ups are killer to your MPG. Colder weather also drops MPG compared to warmer weather.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
As some readers may know, I purchase gasoline EVERY morning before my daily commute. I MUST take into consideration what the weather temp is when deciding how much fuel to purchase.
In the summer, I get 2.80 - 2.90 gallons per day. On cold morning (40*-50*), I get 3.05 - 3.10 gallons. On colder mornings (32*), I get 3.20 - 3.30 gallons.
01-20-2012, 09:53 PM
#95
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Join Date: Apr 2010
Location: Detroit, Michigan
Age: 35
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will this mod affect my car in cold temps? i live in michigan and it can get below the teens here...i just got the v2 aem cai and i might install it sunday..and do the mod. just making sure.
05-12-2012, 08:40 PM
#97
Three Wheelin'
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