Your thoughts on my turbo upgrade plan??
01-24-2008, 06:01 AM
#11
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That turbo is an aboslute waste of time and money.. Its pretty much 100% identical to
A ko4 but costs more and takes more to install.
I've done one.. Its a joke I told the guy looking at the specs its going to be the same as the KO4 he is taking off.
IT was even spooled a hair later.. but made exactly the same peak torque, same boost taper off at the top becuase its too small and resulted in exactly the same top end.
I've done one.. Its a joke I told the guy looking at the specs its going to be the same as the KO4 he is taking off.
IT was even spooled a hair later.. but made exactly the same peak torque, same boost taper off at the top becuase its too small and resulted in exactly the same top end.
01-24-2008, 07:33 AM
#15
The GT2554R, has lower bearing friction and higher turbine and compressor efficiencies..
compared to a K-04. Sizing is similar, but the flow capacity of the GT2554R is higher than a K-04, with lower back pressure, and lower charge air heating compared to a K-04. Sounds like the install you referred to was not running with the correct tuning files, or had other problems.
01-24-2008, 07:47 AM
#17
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sound like
you're talking out of your **** again on a topic you have no realworld experience with.
ball bearings really do absolutely nothing for spool time.. its been tested over and over and over and over gain. Again taking other similar sized turbos like the T3 super 60 vs a GT28RS (regular 60 is similar to a 28R).. with the same size turbine housings the super 60 spools faster then the RS.
I am 100% for GT ball bearing turbos vs older t series technology.. but not for any bs reason about faster spool.
Their benefit is a more stable shaft which helps the turbo last longer and response time between shifts as they don't slow down as much.. or rather don't wobble and become unstable slowing them down.
The quicker spool time is bunk.
Again having been there done that and you are bench racing turbos you haven't used.. you really have no basis on making your comments.
ball bearings really do absolutely nothing for spool time.. its been tested over and over and over and over gain. Again taking other similar sized turbos like the T3 super 60 vs a GT28RS (regular 60 is similar to a 28R).. with the same size turbine housings the super 60 spools faster then the RS.
I am 100% for GT ball bearing turbos vs older t series technology.. but not for any bs reason about faster spool.
Their benefit is a more stable shaft which helps the turbo last longer and response time between shifts as they don't slow down as much.. or rather don't wobble and become unstable slowing them down.
The quicker spool time is bunk.
Again having been there done that and you are bench racing turbos you haven't used.. you really have no basis on making your comments.
01-24-2008, 07:48 AM
#18
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no, no and if you want a ball bearing get a gt2554 since its the same thing with a
hair later spool, exact same top end and peak torque.
But in that case save a few hundred bucks and get a ko4..
But in that case save a few hundred bucks and get a ko4..
01-24-2008, 07:59 AM
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It could yes.. of course someones stage III could also work with it. but really overkill
I'd say some TT injectors and related tune would be pretty good with it.
The turbo's f'n tiny.. just like a ko4.. which again is pretty much what comes stock on a B6 anyway..
In reality i would not waste my money on a gt25 anything.. and go straight to at least a 28r.. skip and rs and go to a 2871r.
Thats all from actually experience with everyone of those turbos.. not bench racing flow charts and bearings.
The turbo's f'n tiny.. just like a ko4.. which again is pretty much what comes stock on a B6 anyway..
In reality i would not waste my money on a gt25 anything.. and go straight to at least a 28r.. skip and rs and go to a 2871r.
Thats all from actually experience with everyone of those turbos.. not bench racing flow charts and bearings.