1JZGTE stuff
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Lead Lap
Joined: Dec 2002
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From: Ga
1JZGTE stuff
Ok before I get into this thing I have a few general question..
In comp. to the 2JZGTE how strong is the 1JZ?
I know the 2JZ has strong internals (cap screws on the rods, strong pistons, crank, etc..)
but what about the 1JZ ..
Stock turbos out of the equation how much boost will the 1JZ (in a good tune) handle?
In comp. to the 2JZGTE how strong is the 1JZ?
I know the 2JZ has strong internals (cap screws on the rods, strong pistons, crank, etc..)
but what about the 1JZ ..
Stock turbos out of the equation how much boost will the 1JZ (in a good tune) handle?
Pole Position
Joined: Dec 2004
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From: CARSON!!!
on stock turbos for the 1JZ, i read that it can only go up to 12-14 psi for a little while and then itll blow since the it has ceramic blades. all this was from the top of my head so sorry if i got any info wrong.
Driver School Candidate
Joined: Mar 2005
Posts: 24
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From: CA
The 1jz is still a nice engine and it's too bad it's overshadowed b the higher displacement 2jz. If the 2jz was never released 3 years after the 1jz was introduced in Japan, we might not be having this discussion, but it happened so the aftermarket and following on the 2jz is alot better. I think we owe this to a little saying that I think every car person knows, "There is no replacement for cubic inches."
Lexus Test Driver
Joined: Nov 2003
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From: California
Originally Posted by Sil.n.Ex
I think we owe this to a little saying that I think every car person knows, "There is no replacement for cubic inches."
i believe the saying goes: "theres no replacement for displacement"
but then again...theres forced induction
Lead Lap
Joined: Jul 2004
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From: NJ-NYC
Ive seen a few 1jzs exceed 6-700 hp on stock internals out in Japan and Austrailia. Very Strong Motor. If you want more power there are aftermarket internals you can buy or go 1.5jz route and get 2jz bottom end. Diffs between the 2 are displacement and thats about. Due to stroke the 1jz revs higher. Not to mention 1jz sound awesome.
Lead Lap
Joined: Jul 2004
Posts: 520
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From: NJ-NYC
Also as far as turbos go like stated above due to the ceramic wheels they dont like to be boosted above 1BAR. Unless you have a US spec 2jz you will run into the same problems with other Jspec 2jzs. With boltons and stock turbos people have reached around 350rwhp. And of course with single or twin upgrades you will have ofcourse monster gains as with the 2jz.
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Lexus Champion
Joined: Feb 2004
Posts: 3,070
Likes: 2
From: Tampa, FL
1JZ-
2.5L
parallel ct12a turbo's
Redline at about 7,250rpm
full boost at about 3k
380cc injectors
Very good flowing head vs. 2JZ
2JZ-
3.0
sequential turbo set-up
redline at about 6,800
internals to hold about 980rwhp
1 degree more camshaft rotation vs. 1JZ
440cc injectors (i think)
Yea everyone would say the 2jz is better, but thats just because of the accessibility of the engine. I believe that if there were as many 1JZ's in the states as the 2JZ they will be really close in hp comparison. The highest hp i've seen on a 1jz is about 750 but I havent really seen anyone push it as much as the 2jz. I guess ill be the first to try that before I swap to the 2jz block
2.5L
parallel ct12a turbo's
Redline at about 7,250rpm
full boost at about 3k
380cc injectors
Very good flowing head vs. 2JZ
2JZ-
3.0
sequential turbo set-up
redline at about 6,800
internals to hold about 980rwhp
1 degree more camshaft rotation vs. 1JZ
440cc injectors (i think)
Yea everyone would say the 2jz is better, but thats just because of the accessibility of the engine. I believe that if there were as many 1JZ's in the states as the 2JZ they will be really close in hp comparison. The highest hp i've seen on a 1jz is about 750 but I havent really seen anyone push it as much as the 2jz. I guess ill be the first to try that before I swap to the 2jz block
Last edited by got_trd; Mar 17, 2005 at 04:19 PM.
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Lead Lap
Joined: Jul 2004
Posts: 520
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From: NJ-NYC
Originally Posted by got_trd
The highest hp i've seen on a 1jz is about 750 but I havent really seen anyone push it as much as the 1jz. I guess ill be the first to try that before I swap to the 2jz block
US 2jz-550cc
JDM 2jz- 440cc
For Mind Cruising
Joined: Jan 2002
Posts: 4,766
Likes: 25
From: NSW
Originally Posted by blaccSC300
on stock turbos for the 1JZ, i read that it can only go up to 12-14 psi for a little while and then itll blow since the it has ceramic blades. all this was from the top of my head so sorry if i got any info wrong.
Just some additional info
Oh and yes the 1JZ is a strong motor, finding it's way into many applications (especially in Thailand, for some reason they shoehorn the 1JZ into anything they can lol... I've seen it bolted into a Volvo, to an Opel Omega wagon heheheh). There's a Soarer I know of with stock internals (just bolt-on mods) pushing 280Kw atw, another one pushing 327Kw at the wheels (from memory, he had HKS cams plus cam gears and a metal head gasket).
Lexus Champion
Joined: Feb 2004
Posts: 3,070
Likes: 2
From: Tampa, FL
Originally Posted by JustinDD91
Not unless I beat you to it
US 2jz-550cc
JDM 2jz- 440cc
US 2jz-550cc
JDM 2jz- 440cc
Pole Position
Joined: Feb 2004
Posts: 253
Likes: 0
From: International
I ran my stock turbos at 1.2 bar (17.5psi) for almost 1 year with no problems, I did have some supporting mods though... (custom dumps,single exhaust,440cc inject,FCon-S/EVC 5)
I now run an HKSGT3040 Single turbo which is producing about 480bph... Only changes made was the addition of 650cc injectors and HKS camshafts....
Car goes and sounds great.
I now run an HKSGT3040 Single turbo which is producing about 480bph... Only changes made was the addition of 650cc injectors and HKS camshafts....
Car goes and sounds great.
Lead Lap
Joined: Jul 2004
Posts: 520
Likes: 0
From: NJ-NYC
Originally Posted by got_trd
Hehe, you probably will.. I have a long way to go still.. I see your in Jersey.. Whereabouts? Im up in Allentown, PA right now for school and it is soo dead out here. We should meet up one weekend.
Driver School Candidate
Joined: Mar 2005
Posts: 24
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From: CA
Originally Posted by rscott
i believe the saying goes: "theres no replacement for displacement"
but then again...theres forced induction
but then again...theres forced induction
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