Throttle Body Water Bypass
Thread Starter
Pro
Joined: Jan 2004
Posts: 503
Likes: 0
From: Forney Texas
Throttle Body Water Bypass
I am planning on removing the hot water hoses from my throttle body. I have read where you can plug each water hose or connect them together. It would be easier to remove the intake hose fitting and plug it while capping off the other hose coming out of the heater core. I was looking at the configuration and it seems to me by plugging the hoses the water will not be able to move through the heater core.
Is my observation correct? If it is then the only reasonable choice is to manifold the two hoses together and bypass the TB. Thanks for any feedback.
90Indy :auto:
Is my observation correct? If it is then the only reasonable choice is to manifold the two hoses together and bypass the TB. Thanks for any feedback.
90Indy :auto:
Melting Slicks
Joined: Apr 2002
Posts: 2,118
Likes: 0
From: St. Charles, MO Route 66 Corvette Club
Re: Throttle Body Water Bypass (90Indy)
I re-routed the water lines such that the water hose goes forward alongsise the the right wheel and loops back into the front of the engine. Doing this really cleans up a congested area (throttle body) of the engine. If you want a picture, please advise.
SAM
SAM
Race Director
Joined: May 2001
Posts: 14,165
Likes: 9
Re: Throttle Body Water Bypass (90Indy)
You are absolutely correct. If you just plug the hoses you won't have a heater. Either couple them together or do like the others have said and replace it with a single hose.
Le Mans Master
Joined: Jan 2003
Posts: 5,858
Likes: 7
From: Santa Maria CA
Re: Throttle Body Water Bypass (90Indy)
I have read where you can plug each water hose or connect them together. It would be easier to remove the intake hose fitting and plug it while capping off the other hose coming out of the heater core. I was looking at the configuration and it seems to me by plugging the hoses the water will not be able to move through the heater core.
[Modified by 86PACER, 12:00 AM 4/26/2004]
Thread Starter
Pro
Joined: Jan 2004
Posts: 503
Likes: 0
From: Forney Texas
Re: Throttle Body Water Bypass (90Indy)
Thanks for the info. Since my car is a vert, my wife would never go for owning a car without a heater. I will now proceed with figuring out what hose configuration I will use to complete the project.
90Indy
90Indy
Team Owner
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Re: Throttle Body Water Bypass (Vett-eight-nine)
What's the advantage to performing this mod, guys?
I did it for ease of tb removal and to clean up engine bay :thumbs:
No ugly heater hose going over valve cover after routing hose under ac compressor, directly to intake manifold.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Re: Throttle Body Water Bypass (Vett-eight-nine)
VERY clean. :thumbs:
But what's the original function, anyway? :confused:
But what's the original function, anyway? :confused:
:cheers:
Pro
Joined: Oct 2002
Posts: 604
Likes: 0
From: CROSSING INTO CHARLOTTE NC FROM SC! SC
Re: Throttle Body Water Bypass (Vett-eight-nine)
There's a claim of some additional power by doing this mod since you do not have the hot coolant going through the TB so air is cooler going in.
Mark A.
Mark A.
Melting Slicks
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Re: Throttle Body Water Bypass (madquake)
There's a claim of some additional power by doing this mod since you do not have the hot coolant going through the TB so air is cooler going in.
Mark A.
Mark A.
Dyno tests are hard to do accurately enough. There is enough variation in dyno runs back to back to hide or create some of the performance improvements that have been claimed.
Air temp is easy to measure and it's easy to correct power for difference in air temp. And it's more accurete than trying to find 3 to 5 hp differences in different dyno runs.
If I believed it made a real differance I would measure the temps myself, but I don't.
Melting Slicks
Joined: May 2000
Posts: 2,029
Likes: 63
Re: Throttle Body Water Bypass (xs650)
Here you go:
- coolant temp 194F ie warm engine when tested
- outside temp 40F
- air temp at air filter 42F (underhood ambient temp not affecting much :) )
- intake air temp 110F (inside the plenum, reading from a scanner)
Can somebody with the bypass mod and a scanner check what the intake air temp is without preheating? After that we should have a clear picture of this.
- coolant temp 194F ie warm engine when tested
- outside temp 40F
- air temp at air filter 42F (underhood ambient temp not affecting much :) )
- intake air temp 110F (inside the plenum, reading from a scanner)
Can somebody with the bypass mod and a scanner check what the intake air temp is without preheating? After that we should have a clear picture of this.
