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Old 05-31-2006, 06:13 AM   #1
whitetiger777
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Ok, so I'm back again...still with out a supra. It looks like turbo MKIVs are easyer to find for some reason. Can someone shoot me off a comparison or the NA and the Turbo...focasing on MPG. Stuff they have actualy witnessed them selves would be best. Also what are the weeks spots in the turbos system. Like in the Eclipse I had to replace the BOV fast because it leaks.
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Old 05-31-2006, 10:45 AM   #2
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Cool

http://www.toyota-supra.info/forums/...2858#post22858
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Old 06-01-2006, 04:26 PM   #3
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Default 2JZ = Interference Engine

according to this the 3.0L is an interference motor

http://autorepair.about.com/cs/doity...mingbelts6.htm
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Old 06-05-2006, 11:55 PM   #4
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Quote:
Originally Posted by BossGVR4
according to this the 3.0L is an interference motor

http://autorepair.about.com/cs/doity...mingbelts6.htm
The 2jz-gte can be modified to become an interference motor with (for example) 272 duration cams and/or 'decked' block and/or head. Bone-stock specs are non-interference.
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Old 06-05-2006, 11:59 PM   #5
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Quote:
Originally Posted by whitetiger777
Ok, so I'm back again...still with out a supra. It looks like turbo MKIVs are easyer to find for some reason. Can someone shoot me off a comparison or the NA and the Turbo...focasing on MPG. Stuff they have actualy witnessed them selves would be best. Also what are the weeks spots in the turbos system. Like in the Eclipse I had to replace the BOV fast because it leaks.
Oem spec for the mkiv tt is 17mpg city, 24mpg hwy.

Yes, the oem bov on the 2jz-gte is a bit of a weak point too. It's been known to partially fail (resulting in decreased max boost) after about 50k miles. Other somewhat-unusual items that should be replaced in higher mileage 2jz-gte's are the coilpacks and the harmonic dampener (crank pulley). Other items may also need to be replaced, such as the water pump and/or oil pump, depending on how diligently the previous owner followed the maintenance schedule.
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NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.

Last edited by pwpanas; 06-06-2006 at 12:01 AM.
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Old 06-08-2006, 06:54 AM   #6
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Quote:
Originally Posted by pwpanas
Oem spec for the mkiv tt is 17mpg city, 24mpg hwy.
Wow, this is kind of funny. My GSX, which is AWD and turboed with 660 cc injectors and a 190 fuel pump gets the same gas milage as a TT Supra. Can anyone give me some experienced gas millage for a NA, so I can compare.
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Old 06-08-2006, 06:56 AM   #7
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Oh, wait this is an oem claim. Can someone give me mpg they have actualy experienced?
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Old 06-08-2006, 07:44 AM   #8
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Quote:
Originally Posted by whitetiger777
Oh, wait this is an oem claim. Can someone give me mpg they have actualy experienced?
Best I ever got with my tt was about 400 miles on the highway with a full tank (17 gallons). I guess that works out to about 23.5 mpg...
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Displacement is no replacement for boost.
Life begins at 30psi.


NB: Please consider posting any help requests in a new thread instead of asking me for help privately. About 99.9+% of the time, private help requests end up covering great information that could be very valuable to other forum members. If you have a good reason for needing the help request to be private, I'll consider it. If not, then why not give everyone else the opportunity to pitch in too, and/or learn from the information? Remember, there's no such thing as a dumb question. We're all here to help within this family of Supra owners.
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Old 06-10-2006, 07:22 AM   #9
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Yup, About the same as my GSX. Anyone with an NA able to tell me their gas millage also?
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