Precision 6266 question/help?
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Precision 6266 question/help?
Hey guys wondering if you can help me out? I have gone through a lot of threads and even googled this but I can't seem to find anything on this. I understand the 6266 is only air cooled and was wondering is that ok on a rotary? I have a fd rx7 and I have not chosen a turbo yet. It was out of the gtx35r, efr, and the precision 6266. I'm leaning more towards the 6266 for my goals but I am finding out its not water cooled? I drive my car everyday and sometimes out of town. Will that turbo be fine or run hot all the time? (I also like to get on the throttle here and there if that helps).
#2
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The ball bearing version of precision turbos are air cooled I am currently doing build using a ball bearing 6266.
You can get a journal bearing version that is water cooled.
You can get a journal bearing version that is water cooled.
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I was always told to stay away from precision turbos. I was told by my builder who saw too many problems and what was called quality issues. Why not get a borg warner? They have a good record and are cheap to rebuild if things go wrong?
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Well I'm not completely sold on a turbo yet, I'm just trying to find out what's a good solid reliable turbo. I drive my car everyday and sometimes out of town, also I like to get on the gas here and there (I have Hondas left and right revving as loud as they can trying to get my attention lol) anyways yeah I'm stuck between the tdx61 by turblown, gtx35r by Garrett, and I keep hearing the efr series are good (not sure which one to get) and then the precision 6266. I hear good and bad things about all turbos which makes me so iffy.
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We ran a 6266 ball bearing for over a year with no issues. Changed only to go with a larger turbo. Technically it is oil cooled. it really depends on the design of the turbo. Some ball bearing turbos like the Garrett GT series MUST be water cooler. I have found however that a water cooled turbo tends to last longer, but nothing wrong with it if the turbo is designed that way.
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So not to change the topic completely but I kind of want to go with the precision buuuut before I do that and go single turbo do I have to rebuild the internals? Make the engine stronger? And how do you get more power out of the engine, or are all the rotors pretty much the same output just stronger material?
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Really depends on the condition of the motor you have. For a single turbo car we almost always go with a Stage 3 aggressive street port and extra clearancing for all the seals and bearings. I generally don't like stock apex seals. Its not a matter of them not holding boost, but the fact that one knock can break one and trash the motor. We prefer RX Parts seals. For a 500 whp car we recommend a stud kit such as Turblown's. You don't strengthen the rotors. Besides bolt on modifications, more power is achieved through porting (similar to putting a cam in a piston motor), or running more boost/larger turbo.
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Do you have to "upgrade" the engine? No, it would be advisable to do certain things if you intend to shoot for mid 400's but if your intention is 400whp +/- your stock engine will be fine. If you intend to go for more ideally minor things would need to be done (2 piece apex seals and some minor clearancing) for reliability at that power level. The main concern is the three piece apex seal.
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Last edited by Zero R; 12-25-13 at 10:43 PM.
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Do you have to "upgrade" the engine? No, it would be advisable to do certain things if you intend to shoot for mid 400's but if your intention is 400whp +/- your stock engine will be fine. If you intend to go for more ideally minor things would need to be done (2 piece apex seals and some minor clearancing) for reliability at that power level. The main concern is the three piece apex seal.
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Unfortunately for rotaries it's porting. If you intend to stay with a responsive 400whp+/- setup, run water injection, keep the boost moderate, and with a good tune and fuel the car will last you until you're ready for port work. Once you are at that point you then need to decide how "far" you want to go. Once you start to step over 500whp you start to need to look at a few other things as mentioned. A 400whp FD is ripping fast, very fun car. Too many people have become jaded because 4klb tanks with 600hp from the factory are becoming the norm and honestly aren't much faster and arguably aren't as fun. They just see the 600hp number so it must be a better experience.
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Unfortunately for rotaries it's porting. If you intend to stay with a responsive 400whp+/- setup, run water injection, keep the boost moderate, and with a good tune and fuel the car will last you until you're ready for port work. Once you are at that point you then need to decide how "far" you want to go. Once you start to step over 500whp you start to need to look at a few other things as mentioned. A 400whp FD is ripping fast, very fun car. Too many people have become jaded because 4klb tanks with 600hp from the factory are becoming the norm and honestly aren't much faster and arguably aren't as fun. They just see the 600hp number so it must be a better experience.
~S~
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I was looking to run a turbo about 15-20 psi and get around 400 whp. I was directed to the gtx35r, tdx61, or a precision 6266. Something fast spooling with great power, I love low end power too. What turbo is the a spec 3574?