1jz Y-pipe for twins: OneJay's Review
07-18-09, 01:54 PM
#17
Found the coolant leak. I guess I tightened down one of the screw-type clamps on my upper radiator hose too tight and busted it. I just replaced it real quick with some extra hose and viola! No more leakage!
Drove it 40 miles yesterday with no problems, except for the earsplitting noise. And it goes through gas like Rosie O'Donnell through cake. NOM NOM NOM!!!
Otherwise I couldn't be happier!
Drove it 40 miles yesterday with no problems, except for the earsplitting noise. And it goes through gas like Rosie O'Donnell through cake. NOM NOM NOM!!!
Otherwise I couldn't be happier!
07-18-09, 05:54 PM
#21
It's all wired up except for the power. Should I unplug the back until I have it all wired in?
It took about three days to get the front turbo off, but if I did it again, I could probably do it in a few hours. It was just a one nut giving me trouble that I needed a little stubby wrench for, and then I realized you can remove the studs from the turbo to slide it one way or the other. It is definitely a learning experience though.
It took about three days to get the front turbo off, but if I did it again, I could probably do it in a few hours. It was just a one nut giving me trouble that I needed a little stubby wrench for, and then I realized you can remove the studs from the turbo to slide it one way or the other. It is definitely a learning experience though.
07-18-09, 09:03 PM
#22
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From reading my LC1 manual it says that the heated bosch sensor That comes with it will be damaged unless its all hooked up, whether thats a shorter life span or actual damage I have no idea. Maybe a guru can chime in.
09-04-09, 07:05 AM
#26
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y pipe
I installed this same y-pipe with a 3in downpipe on my mkiii supra 1j. Problem was i blew out a coolant seal on one of the turbo's after about 3 weeks running the ypipe. Smoked so bad thought i had a BHG (brings back memories of the 7m hahaha) Had terrible problems getting the ypipe to seal around the turbo exhaust side because my ypipe was polished and the dumbass that polished it gave it more of a ( shape than a | shape. So imagine the ypipe sitting like this.
turbo a |) --ypipe -- (| turbo b.
The motor had about 95k miles on it and so I think the turbo's were already on there last leg. I replaced the turbo's kept the ypipe on and did notice that it makes a hell of a difference in spool up time but not a huge difference in hp compared to just running a 3in dp.
1st time it took me about 4 days to put the ypipe on (about 5 hours each day). Now just like you said i could do it in a day.
turbo a |) --ypipe -- (| turbo b.
The motor had about 95k miles on it and so I think the turbo's were already on there last leg. I replaced the turbo's kept the ypipe on and did notice that it makes a hell of a difference in spool up time but not a huge difference in hp compared to just running a 3in dp.
1st time it took me about 4 days to put the ypipe on (about 5 hours each day). Now just like you said i could do it in a day.
09-05-09, 04:36 PM
#27
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another good tip to keeping your wide band o2 sensor clean and in good working order is your actually suppose to remove it and burn the tip of the sensor with a torch of some sort propane or acetylene every time you use it of course thats not practical for most of us but it will severely increase the life of the sensor
sorry to high jack the thread but i felt the information was important
09-05-09, 06:51 PM
#28
Sorry for the delay on the pics. I just got my new suspension in! 
Maybe I should look into a replacement sensor in that case.
Just in case mine got effed up when it wasn't plugged in.
As far as the Y pipe, it feels like I lost a tiny bit of torque on the low end, but the turbos feel like they spool faster, so its a little gain a little loss. I kind of want to get it dyno'd again, but I might just wait until I get down to sea level. It does feel like I've gained a bit of power though. I couldn't really tell much of a difference, but my good friend said he feels a bit of a power gain. I probably just cant really tell because I drive the car all the time lol.
Maybe I should look into a replacement sensor in that case.
Just in case mine got effed up when it wasn't plugged in.As far as the Y pipe, it feels like I lost a tiny bit of torque on the low end, but the turbos feel like they spool faster, so its a little gain a little loss. I kind of want to get it dyno'd again, but I might just wait until I get down to sea level. It does feel like I've gained a bit of power though. I couldn't really tell much of a difference, but my good friend said he feels a bit of a power gain. I probably just cant really tell because I drive the car all the time lol.
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