+5-15hp coolant line bypass LEXUS SC 300 400
#1
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Is this possible ?? It is the new thing on EBAY. The guy has some negative feedback but both of those were for a Mustang EGR block.. What do you guys think??
#3
Search Function Inc.
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I suggest you do not do that. This is the most ghetto way to add HP.You do cheat the system when you remove that lil pipe. This makes your ECU run your engine rich. Its ok for a short period of time but might damage the engine if used all the time (damages valves). The best way to do the same thing is to get a well tumed S-AFC.
Overall, don't do that.
Overall, don't do that.
#7
Lexus Champion
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You're not going to damage any valves or anything like that, guys have been performing that trick for years. It just bypasses the coolant line that flows through your t-body, the hot coolant heats up incoming air, and as we all know, cooler air is more densely packed with oxygen molecules and will therefore promote better combustion. F-body guys have been doing this for years, among others. I've done it, but not to my SC. That's not to say that I won't, I just haven't had a chance. The only concern is if you're in a cold climate. The line is there to keep your t-body from icing, the throttle butterfly could potentially stick in an open position and send you through somebody's living room. Not likely, but if you do live in a cold climate, then the bypass is not something you want to do. 5-15hp? No. 1-3hp? Yes, and every bit counts, especially with the SC, which looks alot faster than it is.
- Jon
- Jon
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#9
Lexus Champion
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Does anyone have a picture of this procedure? I'm just curious...
#10
Pole Position
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Here's an example on a GS400 perfomed by BananaGS. I take no credit for this DIY.
But I DID do this to my car a few days ago with a friend.
http://lexusmodz.netfirms.com/GS_DIY/coolant_bypass/
But I DID do this to my car a few days ago with a friend.
http://lexusmodz.netfirms.com/GS_DIY/coolant_bypass/
#12
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Originally posted by Lex Luthor
You're not going to damage any valves or anything like that, guys have been performing that trick for years. It just bypasses the coolant line that flows through your t-body, the hot coolant heats up incoming air, and as we all know, cooler air is more densely packed with oxygen molecules and will therefore promote better combustion. F-body guys have been doing this for years, among others. I've done it, but not to my SC. That's not to say that I won't, I just haven't had a chance. The only concern is if you're in a cold climate. The line is there to keep your t-body from icing, the throttle butterfly could potentially stick in an open position and send you through somebody's living room. Not likely, but if you do live in a cold climate, then the bypass is not something you want to do. 5-15hp? No. 1-3hp? Yes, and every bit counts, especially with the SC, which looks alot faster than it is.
- Jon
You're not going to damage any valves or anything like that, guys have been performing that trick for years. It just bypasses the coolant line that flows through your t-body, the hot coolant heats up incoming air, and as we all know, cooler air is more densely packed with oxygen molecules and will therefore promote better combustion. F-body guys have been doing this for years, among others. I've done it, but not to my SC. That's not to say that I won't, I just haven't had a chance. The only concern is if you're in a cold climate. The line is there to keep your t-body from icing, the throttle butterfly could potentially stick in an open position and send you through somebody's living room. Not likely, but if you do live in a cold climate, then the bypass is not something you want to do. 5-15hp? No. 1-3hp? Yes, and every bit counts, especially with the SC, which looks alot faster than it is.
- Jon
#13
Lexus Champion
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This one of the first mods I did on my GS300 a few months ago. Installing the hose gets a lil tricky, especially with the wrong tools, but besides that it's pretty simple. As for horsepower gains... they're not noticeable. It's true that every little bit helps, but don't expect a big jump in performance. Rerouting the coolant doesn't have any negative effects unless your car is in frigid climates... living in sunny (ashy) southern california I never run in to that problem.
#14
Lexus Test Driver
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The coolant running through the TB has also been said to reduce dirt/grime buildup in the TB itself-- by heating it up it's supposed to keep it cleaner due to EGR/ or PCV recirculation-- It seems minimal, but the Nissan SR20 TB gums up and needs cleaning because of it--
#15
Zombie Slayer
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The coolant running through the TB has also been said to reduce dirt/grime buildup in the TB itself-- by heating it up it's supposed to keep it cleaner due to EGR/ or PCV recirculation-- It seems minimal, but the Nissan SR20 TB gums up and needs cleaning because of it--