1.5jz parts list
03-07-10, 07:39 PM
#1
1.5jz parts list
After owning my 94 SC300 for about 2 years or so maybe alil longer, i want to boost it! I been on the forums for a while, i have done my research, ive learned alot about 1JZ,2JZ, and NA-T setups and im sure some people kno who i am, im not a noobie sooo plz dont be blunt and say the search button is my friend
Anyways, I bought my SC before i even knew about Club Lexus, it was completely stock, throughout these years i have done alot of other goodies to the car, such as Maintenace,Suspension,LS400 BBK,Polished TT wheels,Auto<5spd swap,SC400 Lip,Exhaust, Etc..Etc
Ive always wanted to Boost my car and the time has finally come, I got a great deal on a complete 1J Longblock that i couldnt possible say no to, i kno a 1J swap is still alot better than the n/a 2J performance wise...Im a Believer in both motors the 1J and the 2J!
These are my plans i wanna run a 1.5JZ in my SC300 simply because i want the revs of a 1J but i still want the displacment and torque of a 2J, im trying to get the best of both worlds, but for now i will still have the stock twins, i have never come across someone running a 1.5JZ with stock twins, and my N/A 2J block, i dont wanna put in pistons or rods, i want my internals to remain N/A, my power goals are in between 350-400whp
Now that you guys kno what im looking for LMK what you guys think and help me get my list in parts together.
Thanks
Anyways, I bought my SC before i even knew about Club Lexus, it was completely stock, throughout these years i have done alot of other goodies to the car, such as Maintenace,Suspension,LS400 BBK,Polished TT wheels,Auto<5spd swap,SC400 Lip,Exhaust, Etc..Etc
Ive always wanted to Boost my car and the time has finally come, I got a great deal on a complete 1J Longblock that i couldnt possible say no to, i kno a 1J swap is still alot better than the n/a 2J performance wise...Im a Believer in both motors the 1J and the 2J!
These are my plans i wanna run a 1.5JZ in my SC300 simply because i want the revs of a 1J but i still want the displacment and torque of a 2J, im trying to get the best of both worlds, but for now i will still have the stock twins, i have never come across someone running a 1.5JZ with stock twins, and my N/A 2J block, i dont wanna put in pistons or rods, i want my internals to remain N/A, my power goals are in between 350-400whp
Now that you guys kno what im looking for LMK what you guys think and help me get my list in parts together.
Thanks
Last edited by 94_soarer; 03-07-10 at 08:56 PM.
03-07-10, 08:45 PM
#2
I have been wondering when the time was gonna come when you finally took the next step..Im not of much help with the 1.5jz conversion, but I can say that from reading, your power goals can be achieved easily staying with a 1.5jz "bpu"...IMO, I would still go with a mid-framed single just to be safe..Im looking forward to this.
03-08-10, 12:09 AM
#4
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im also on the process of doing the 1.5j swap let me know if you need any info
also get rid of the twins go with a single.. sticking with the twins will choke the top end power.
also get rid of the twins go with a single.. sticking with the twins will choke the top end power.
03-08-10, 04:16 AM
#5
I have been wondering when the time was gonna come when you finally took the next step..Im not of much help with the 1.5jz conversion, but I can say that from reading, your power goals can be achieved easily staying with a 1.5jz "bpu"...IMO, I would still go with a mid-framed single just to be safe..Im looking forward to this.
What size turbo do you guys have in mind with a 1.5JZ, i want a turbo that i can have fun around the city, but still have good topend aswell.
Big enough for topend, but small enough for quick spool..
My thoughts a 60-1, or 6265.
03-08-10, 07:29 AM
#7
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99.99% of people never need to rev higher than 7000rpm which is perfectly fine for a 3.0L like the 2J. In order to have an engine combo that puts an 8-9000rpm redline to use, you'll need a very large turbo that will be VERY laggy on the street. Not to mention, contrary to a lot of the B.S. myths on the forum, the 1J head DOES NOT flow as well as a 2JZGTE head. In order for a 1J head to be efficient above 7500rpm, it will need some serious work.
If you want a rev happy motor, stay 2.5L, use a mid-large turbo and run it to 8k. If you want torque, go 1.5JZ, get a medium size turbo (<70mm) and enjoy a badass street car.
9krpm rev limits are for cars that CAN'T make torque down low (like 1.8L Hondas). You really don't need 9krpm when you can have near-peak torque from 3500-7500 with a 3.0L
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03-08-10, 09:36 AM
#8
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I have a 1.5jz in my car. I am running a 67mm I think its perfect full boost around 4k-4.2k pulls very hard.
For the 1.5 you need a longer coolant passage tube from the head to the block since its an inch taller.
2jz timing belt
spacer for the dipstick to bolt up again
There is more I just don't remember it all right now. Look on Supraforums there is more info about 1.5jzs there.
For the 1.5 you need a longer coolant passage tube from the head to the block since its an inch taller.
2jz timing belt
spacer for the dipstick to bolt up again
There is more I just don't remember it all right now. Look on Supraforums there is more info about 1.5jzs there.
03-08-10, 12:47 PM
#9
The shorter stroke of the 1J is the reason it's rev happy (and the reason it's 2.5L). If you take that out of the equation, you basically have a 2J you're trying to rev high.
99.99% of people never need to rev higher than 7000rpm which is perfectly fine for a 3.0L like the 2J. In order to have an engine combo that puts an 8-9000rpm redline to use, you'll need a very large turbo that will be VERY laggy on the street. Not to mention, contrary to a lot of the B.S. myths on the forum, the 1J head DOES NOT flow as well as a 2JZGTE head. In order for a 1J head to be efficient above 7500rpm, it will need some serious work.
If you want a rev happy motor, stay 2.5L, use a mid-large turbo and run it to 8k. If you want torque, go 1.5JZ, get a medium size turbo (<70mm) and enjoy a badass street car.
9krpm rev limits are for cars that CAN'T make torque down low (like 1.8L Hondas). You really don't need 9krpm when you can have near-peak torque from 3500-7500 with a 3.0L
99.99% of people never need to rev higher than 7000rpm which is perfectly fine for a 3.0L like the 2J. In order to have an engine combo that puts an 8-9000rpm redline to use, you'll need a very large turbo that will be VERY laggy on the street. Not to mention, contrary to a lot of the B.S. myths on the forum, the 1J head DOES NOT flow as well as a 2JZGTE head. In order for a 1J head to be efficient above 7500rpm, it will need some serious work.
If you want a rev happy motor, stay 2.5L, use a mid-large turbo and run it to 8k. If you want torque, go 1.5JZ, get a medium size turbo (<70mm) and enjoy a badass street car.
9krpm rev limits are for cars that CAN'T make torque down low (like 1.8L Hondas). You really don't need 9krpm when you can have near-peak torque from 3500-7500 with a 3.0L
Thanks for the info
03-09-10, 12:06 AM
#11
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Nate just drop a 1j in your car and be done with it.... LOL... I have been driving mine since saturday and man I am in love with with my sc400... I see what I have been missing out on without boost in a sc at all!!!!!!!!! IT SUCKS...
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