Throttle Body By-Pass Thoughts???
Thread Starter
Racer
Joined: Aug 2006
Posts: 470
Likes: 1
From: Bellevue Nebraska
Throttle Body By-Pass Thoughts???
So I've been doing some thinking, after seening the Throttle Body By-Pass on Ecklers...
Supposedly the Throttle Body By-Pass is good for like 3-5 RWHP. So does it connect the hose that goes to the top of the throttle body (and over to the valve cover) and the hose that comes from the radiator over to the lower portion of the throttle body?
I was thinking since it seems that the line that comes from the radiator is long enough, couldn't I just go direct from the valve cover to the radiator? Wouldn't it achieve the same thing?
Also, what are you supposed to do with the now open lines (two of them) on the throttle body?
Thanks for any and all suggestions. I was just doing some brainstorming and I'm always up for some more HP at a cheap cost...
Supposedly the Throttle Body By-Pass is good for like 3-5 RWHP. So does it connect the hose that goes to the top of the throttle body (and over to the valve cover) and the hose that comes from the radiator over to the lower portion of the throttle body?
I was thinking since it seems that the line that comes from the radiator is long enough, couldn't I just go direct from the valve cover to the radiator? Wouldn't it achieve the same thing?
Also, what are you supposed to do with the now open lines (two of them) on the throttle body?
Thanks for any and all suggestions. I was just doing some brainstorming and I'm always up for some more HP at a cheap cost...
Thread Starter
Racer
Joined: Aug 2006
Posts: 470
Likes: 1
From: Bellevue Nebraska
For those that have this done, is there some improvement? Is it even worth doing? I know 5HP may not even be that noticable, but I'm trying to gauge whether or not to do it to my C5.
Thanks!
Le Mans Master
Joined: Sep 2003
Posts: 8,847
Likes: 795
From: Longview Texas
I don't think it is even worth messing with since you will not see any measurable increase in HP. Just leave it connected the way it was intended, and use your time doing something worthwhile. 
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Check out the FAST 90 installation tips thread. He did just what you are asking, connected a new hose from the radiator to the crossover pipe on the heads and eliminated the throttle body.
I considered using the standard brass double nipple and doing my own (the 90mm NW throttle body I am installing doesn't have the connections) but I am not sure how brass reacts in Dexcool and this may be why the kits use an aluminum connection nipple.
I considered using the standard brass double nipple and doing my own (the 90mm NW throttle body I am installing doesn't have the connections) but I am not sure how brass reacts in Dexcool and this may be why the kits use an aluminum connection nipple.
Burning Brakes
Joined: Nov 2004
Posts: 1,226
Likes: 3
From: Lakemoor IL
I was the guy with the FAST tips thread.
If your gonna do this dont waste your money on a bypass kit. Go to the auto parts store and get 3' of 5/16 fuel line and two small hose clamps. Here is a pic of how I ran mine.
Doing it this way also keeps the coolant line away from the water pump pulley, unlike the bypass kit which lets the line lay right on top of the pulley.
If your gonna do this dont waste your money on a bypass kit. Go to the auto parts store and get 3' of 5/16 fuel line and two small hose clamps. Here is a pic of how I ran mine.
Doing it this way also keeps the coolant line away from the water pump pulley, unlike the bypass kit which lets the line lay right on top of the pulley.
Thread Starter
Racer
Joined: Aug 2006
Posts: 470
Likes: 1
From: Bellevue Nebraska
I was the guy with the FAST tips thread.
If your gonna do this dont waste your money on a bypass kit. Go to the auto parts store and get 3' of 5/16 fuel line and two small hose clamps. Here is a pic of how I ran mine.
Doing it this way also keeps the coolant line away from the water pump pulley, unlike the bypass kit which lets the line lay right on top of the pulley.
If your gonna do this dont waste your money on a bypass kit. Go to the auto parts store and get 3' of 5/16 fuel line and two small hose clamps. Here is a pic of how I ran mine.
Doing it this way also keeps the coolant line away from the water pump pulley, unlike the bypass kit which lets the line lay right on top of the pulley.
Thanks for the tips!
Quick question, on my car, the line runs from the passanger valve cover, over to the top of the throttle body. And then from the bottom of the throttle body over to the radiator...
Seems to me like yours is running towards the driver side valve cover or something... Could you elaborate on this? I just want to do it right, otherwise I won't do it at all...
Or did you run it over under the throttle body and fuel rail covers, to the passanger side valve cover just to eliminate going anywhere near the pulleys? Thanks for the help!
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Racer
Joined: Sep 2006
Posts: 280
Likes: 0
I believe there are as many opinions as there are people on this one.
If you live in a colder climate, it's wise to leave as is because the coolant helps keep the throttle body warm which helps cold start drivability.
Since I live in Fla, I bypassed mine since everything warms up so fast anyway. From what I've read, the thinking it that a cooler intake charge = more power. Just use some vacuum caps to plug the ports on the TB.
I really didn't notice any difference except that the TB is easier to remove now because I don't have to disconnect the hoses with coolant dribbling everywhere.
If you live in a colder climate, it's wise to leave as is because the coolant helps keep the throttle body warm which helps cold start drivability.
Since I live in Fla, I bypassed mine since everything warms up so fast anyway. From what I've read, the thinking it that a cooler intake charge = more power. Just use some vacuum caps to plug the ports on the TB.
I really didn't notice any difference except that the TB is easier to remove now because I don't have to disconnect the hoses with coolant dribbling everywhere.
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
That mod add 00.000 hp and if you live in a warm climate will not adverserly affect your car, if you live where it gets cold and you drive your corvette, it will affect your pcm calibrations.
Safety Car
Joined: Oct 2003
Posts: 3,699
Likes: 16
From: Sun City- Menifee Calif.
So I've been doing some thinking, after seening the Throttle Body By-Pass on Ecklers...
Supposedly the Throttle Body By-Pass is good for like 3-5 RWHP. So does it connect the hose that goes to the top of the throttle body (and over to the valve cover) and the hose that comes from the radiator over to the lower portion of the throttle body?
I was thinking since it seems that the line that comes from the radiator is long enough, couldn't I just go direct from the valve cover to the radiator? Wouldn't it achieve the same thing?
Also, what are you supposed to do with the now open lines (two of them) on the throttle body?
Thanks for any and all suggestions. I was just doing some brainstorming and I'm always up for some more HP at a cheap cost...
Supposedly the Throttle Body By-Pass is good for like 3-5 RWHP. So does it connect the hose that goes to the top of the throttle body (and over to the valve cover) and the hose that comes from the radiator over to the lower portion of the throttle body?
I was thinking since it seems that the line that comes from the radiator is long enough, couldn't I just go direct from the valve cover to the radiator? Wouldn't it achieve the same thing?
Also, what are you supposed to do with the now open lines (two of them) on the throttle body?
Thanks for any and all suggestions. I was just doing some brainstorming and I'm always up for some more HP at a cheap cost...
Safety Car
Joined: Jul 2004
Posts: 3,904
Likes: 29
From: Vancouver Washington
And the main reason to do a bypass is so that you don't have to mess with the coolant everytime you want to remove the throttle body or intake manifold. Use one long hose and you eliminate two place where it could leak.
Le Mans Master
Joined: Aug 2002
Posts: 8,222
Likes: 0
From: Norfolk VA
someone finally posted a good reason for doing this mod.
Le Mans Master
Joined: Aug 2005
Posts: 7,890
Likes: 0
From: FL
Someone can't read or see 
Look 7 posts above yours
I also think that if your throttle is sticking in freezing weather you just didn't let the car warm up for a few minutes...no water should be in your TB to freeze
Look 7 posts above yours
I also think that if your throttle is sticking in freezing weather you just didn't let the car warm up for a few minutes...no water should be in your TB to freeze
Safety Car
Joined: Mar 2002
Posts: 4,928
Likes: 1
Cruise-In V Veteran
St. Jude Donor '09
If you plan on pulling the TB more than once - Bypass it.
You'll be happy you did.
Drifting
Joined: Mar 2005
Posts: 1,737
Likes: 0
From: Northern VA