running TD04L without waterlines
- Thread starter gorganl2000
- Start date
gorganl2000
Lifer
hey gee........i just tried a search....i cant find it
if u find it....post the link up
and your statement ..."""""it was not recommended NOT to run it without a water line""" is a bit confusing.....
if u find it....post the link up
and your statement ..."""""it was not recommended NOT to run it without a water line""" is a bit confusing.....
HYBRID
Super Moderator <a href="http://www.toyotagtturbo.
so, to put it simply, it all basically depends on the chra ie the bearing shaft housing.. not all seals can take certain levels of heat, similarly the materials inside the turbo may need that little bit of extra cooling from the water so that they dont over ex-pand &Y in turn wear more easily..
that said, propper racing turbos eliminate the water lines & stick to oil cooled//lubricated.. well for various reasons, the main one being when a turbo (hi power) is seeing egt's of over 850deg the water is close to being vaporised inside it,. thus causing nothing but a messup in the flow of the water table..
its also removed in racing turbos to make the turbo significantly smaller (chra wise) & to avoid the change of temps inside the turbo when it is cold, as u want a racing turbo to be much warmer than a stock turbo.. a stock turbo has waterlines as well so that it can heat up the water a little quicker so that on a cold start (being an efi system) it wont need to last so long "on choke" & thus prove to be more economical..
its true its a minimal difference but only manufcatures knew what they had to create to get the car warm up & be economical as possible, while retaining that sporty feeling
i ran my td04L on 1.7bar with water lines.. that said im running my greddy td05 at 1bar & its oil cooled only.. only noticed a difference of 8deg in the water temp on full boost after a few runs down the qtm
kon
that said, propper racing turbos eliminate the water lines & stick to oil cooled//lubricated.. well for various reasons, the main one being when a turbo (hi power) is seeing egt's of over 850deg the water is close to being vaporised inside it,. thus causing nothing but a messup in the flow of the water table..
its also removed in racing turbos to make the turbo significantly smaller (chra wise) & to avoid the change of temps inside the turbo when it is cold, as u want a racing turbo to be much warmer than a stock turbo.. a stock turbo has waterlines as well so that it can heat up the water a little quicker so that on a cold start (being an efi system) it wont need to last so long "on choke" & thus prove to be more economical..
its true its a minimal difference but only manufcatures knew what they had to create to get the car warm up & be economical as possible, while retaining that sporty feeling
i ran my td04L on 1.7bar with water lines.. that said im running my greddy td05 at 1bar & its oil cooled only.. only noticed a difference of 8deg in the water temp on full boost after a few runs down the qtm
kon
I dont see why people are saying they 'must' be used, and saying the oil is mainly there for lubricating the turbo.
This is definitely NOT the case. Yes of course it lunricates the bearings, but it also keeps the turbo cool too. Well, think about it, there are many turbo's out there that are NOT water cooled. I doubt the water can do a great deal, when you think a turbo can glow bright red from heat, thats seriously hot!!!
I'm sure ive read somewhere that the water lines are there to cool the turbo AFTER engine switch off,as due to the heat is causes a small amount of (cant remember name, causing the flow of water due to thermal transfer!). A lot of scooby owners disconnect the lines.
I think it just comes down to personal choice at the end of the day. if people want to run water lines then run them. I have always wondered myself if even the CT9 being water fed stresses the coolant more. Yeah it may well be the case that without water cooling the turbo lasts less, we need some replies from people that have done it to find out how much less.... If not running the waterlines it will be a lot more vital to make sure you get the turbo cool down/ turbo timer
This is definitely NOT the case. Yes of course it lunricates the bearings, but it also keeps the turbo cool too. Well, think about it, there are many turbo's out there that are NOT water cooled. I doubt the water can do a great deal, when you think a turbo can glow bright red from heat, thats seriously hot!!!
I'm sure ive read somewhere that the water lines are there to cool the turbo AFTER engine switch off,as due to the heat is causes a small amount of (cant remember name, causing the flow of water due to thermal transfer!). A lot of scooby owners disconnect the lines.
I think it just comes down to personal choice at the end of the day. if people want to run water lines then run them. I have always wondered myself if even the CT9 being water fed stresses the coolant more. Yeah it may well be the case that without water cooling the turbo lasts less, we need some replies from people that have done it to find out how much less.... If not running the waterlines it will be a lot more vital to make sure you get the turbo cool down/ turbo timer
Adam_Glanza
Member +
im sure there isnt a huge difference, but for that minimal difference i dont see why you would bother to disconnect them?
if your car is a full out racing car then fine be risky, but why bother to risk it if your car is the daily driver etc
if your car is a full out racing car then fine be risky, but why bother to risk it if your car is the daily driver etc
gorganl2000
Lifer
some nice stuff in here
yeah...i can clearly see what u are saying adam glanza.....but when some people go for a different turbo set up...there may be some thought as to water lines, routing, connections, etc.........
i just wanted to let some people see what others out there are doing and their results----it's good to have an open mind and understand that things can be done differently
my personally...i dont think it makes a difference on a lot of these newer turbos---tdo4/5, GT, etc.....as harvey says....when a turbo is glowwing red,,,,no amount of water will be cooling it
though i can see an arguement for waterlines helping to heat up the car and to cool down the turbo to prevent oil baking after u turn it off....but again, that's what your timer is for or just drive slowly the last few kms to your home...as alot of us do anyway
yeah...i can clearly see what u are saying adam glanza.....but when some people go for a different turbo set up...there may be some thought as to water lines, routing, connections, etc.........
i just wanted to let some people see what others out there are doing and their results----it's good to have an open mind and understand that things can be done differently
my personally...i dont think it makes a difference on a lot of these newer turbos---tdo4/5, GT, etc.....as harvey says....when a turbo is glowwing red,,,,no amount of water will be cooling it
though i can see an arguement for waterlines helping to heat up the car and to cool down the turbo to prevent oil baking after u turn it off....but again, that's what your timer is for or just drive slowly the last few kms to your home...as alot of us do anyway
gorganl2000
Lifer
i know some1 running a tdo4l in excess of 18 months now without waterlines...all reports at last inspection (very recently) say its still like new......interesting huh
gorganl2000
Lifer
and he has spoken...lol....
so we have scizdott, jay, hybrid (currently), mayzie, dantheman and many more
just goes to show what's out there
gorganl2000
Lifer
now let me say....i only put up this tread in relation to the tdo4l (and similar spec and built turbos---maybe k series, MHI series, etc.) that so many of the members are running.....its just an OPTION to some who chose to do it with or without waterlines\
however, i would not say the same for the ct9....i'm not sure how it would react without waterlines..and 1 bar of boost.....lol....maybe it would survive, maybe it wont....lol
however, i would not say the same for the ct9....i'm not sure how it would react without waterlines..and 1 bar of boost.....lol....maybe it would survive, maybe it wont....lol
gorganl2000
Lifer
lol...that was funny
a person might not want to run water lines because of several reasons....maybe they think it will cause cooling/overheating issues...,.maybe they just dont beleive in them.....maybe because they might have to tap their block or coolant accessories to run them....maybe because they cant get them in time.....maybe they dont think that coolant increases the life of the turbo...maybe the turbo is only oiled cooled
...the reasons are the EXACT opposite of why persons run them...lol