Attn: 7M-GTE to 1JZ-GTE Owners

OneJoeZee

Retired Post Whore
Mar 30, 2005
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Different strokes for different folks. And I mean that very literal in this case. no one on this shite should ever talk about 'there's no replacement for displacement.' I don't see anyone swapping to any UZ engines except for a few. It has more displacement, must be better, right? =/ We're not talking about muscle cars. A turbo engine will make as much power as it's turbo and head will allow it to flow. If a turbo is rated at 500hp it will make 500hp. One engine might do it at 4000RPM and another might do it at 8000RPM. But who cares where your engine makes power as long as it is making power? If your engine makes power higher in the RPM range, all you have to do is drop down a gear or launch at a higher RPM.

I for one will keep the 2.5L block in my car. no 1.5J or 2J. The only different is the stroke. Big deal, the engine will need to rev a bit more. But so what? It's very capable of handling the extra rev range. I get tired of people doubting the potential of the 1J because it's displacement. It comes up far too often. People wanna fall back on the "oh 1J doesn't have the torque, it's too small" arguement. Most of the people saying it have never even driven or been in a 1J powered car or don't have anything better to say. Turbo lag and low end torque are so overrated to me.

When does all that 'torque' mean anything? I've ran cars with bigger engines. If I beat them I always pull instantly. Any car I've raced and beat has never gotten jump on me before I pulled on them. And if they beat me it's the same deal. I hardly think 'torque' or lack there of had anything to do with that. It's power... I can make full boost before 3000RPM and it doesn't drop off.

I don't miss my 7M or the extra .5L one bit at all. Everyone needs to do their own research and draw their own conclusions about each motor if you ask me. These threads only go so far and we're all too stubborn and parochial to a certain extent when it comes to this topic.

That said, I'll make the disclaimer so people don't get the wrong idea or butt hurt or anything. I respect the 7M and like seeing and riding in the 7M cars some of the local socal guys have and reading the updates on the builds here from IJ, Steve(group A) and others. I'm anxious to see how Aaron's(bigaaron's) car feels when he gets the tune down and ups the boost. I'm also very confident when I give my car to him and Jose to upgrade to single setup using the same turbo, the power results will be very similar out of my 1J.
 

lifesnotfair

New Member
Dec 26, 2005
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I was scared of people's comments too. Everyone kept saying that the 2.5 liters is too small to move such a heavy car, blah blah, the 7M has the extra 1/2 liter, and therefore enough torque to move the heavy car... I've had my car for 1 day only since I did the 1JZ swap, but I've driven it all almost all day long, and a lot.... All stock, except for an HKS filter and Tanabe exhaust. The car feels very smooth and light, I mean, the response is THERE. The turbo is there at VERY low RPM, IMO. Acceleration feels quite brutal, I like it.
 

turbodriz

mk3 onwer
Feb 25, 2006
471
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newyork....N.c
So I read the thread about hp and torque. Hp is a rating that they get from torque. I would agree that making torque at a higer r is good. So in saying this if you j series is making peak torque at 5500 all the extra rev is unneccesary. Torque is what puts you in your seat. Does anybody have torgue and hp ratings for 1jz and 7m at less say 12psi? The only way that we can proof the difference is with numbers.
 

turbodriz

mk3 onwer
Feb 25, 2006
471
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newyork....N.c
I agree. I also want to say that this conversation is everything when we are talking about two stock motors. If your thought was power as much as you can make what would be your choose between these 2 motors. At that point you can make the 7m rev .
 

Brewster

So it goes.
Apr 15, 2005
1,156
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Morgantown, WV
because i wanted a reliable car that i can drive daily.
bulletproof bottom end.
higher flowing head.
FFIM.
better electronics.
higher revving.
 

Nick M

Black Rifles Matter
Sep 9, 2005
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no one on this shite should ever talk about 'there's no replacement for displacement.'
Well it is true. Torque is easier to produce than revs, in the HP forumla, and by the way, boost is artificial displacement.

I think the reason some did it was the 1JZ was a purpose built motor, and that purpose was high performance. The 7M was still appealing to the masses.
 

OneJoeZee

Retired Post Whore
Mar 30, 2005
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Nick M said:
Well it is true. Torque is easier to produce than revs, in the HP forumla, and by the way, boost is artificial displacement.

I think the reason some did it was the 1JZ was a purpose built motor, and that purpose was high performance. The 7M was still appealing to the masses.

I mostly meant the statement in rebuttle to those that say the 1J just doesn't have what it takes to move our big heavy cars when in reality it can hold it's own just fine.

We all know a 2J has the same number of pistons and the same bore as the 1J, just with .5L extra in the stroke. A 1J should be capable of the same power as a 2J(given supporting mods) but it will have to rev higher to do it to make up for the shorter stroke, but this is just the nature of the motor.

Maybe it's me, but it seems only in America does the 1J have such trouble validating itself as a great performance motor. I visit a few australian sites occasionally and no one there ever questions the potential of the JZA70.

Just for example, there was a thread on Supraforums about MKIVs with 1J swaps. Particularly relating to A80s that were NA. Majority of the replies brushed it off as an asinine idea to use a 2.5L engine. An australian member that is using a 1J in his previously NA A80 posted a time slip of a 12 second 1/4 time still using stock twins and a member made a snide comment about the trap speed being slow at 'only' 108 but that's to be expected because it's a 1J, totally ignoring the fact that a 12 second time slip is impressive for a mostly stock car.

Sorry for ranting every now and then, but people talk about elitism between the different Supra engines. IMO the 1J catches the most shit out of them all, many times it's not blatant and very indirect but it's there.
 
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Stretch

Tallest MK3 driver ever!!
Mar 30, 2005
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I am really wanting to do a 1UZ swap in the future myself. I see all the 1jz lovers, and i love it too. I see the 7m lovers, and trust me I love it. I see the 2jz lovers, and I respect what they do, but I would love to have a stroked 1UZ, all NA power, and just being able to floor it and launch like crazy, no turbo, no nitrous, all motor
But hey, that's just me, and so we all have our own ideas of the perfect engine and car for it. Be it 1.5jz, or 3UZ, or 3sgte, there's always a different stroke, for different folks :icon_razz
Get it? stroke. I laughed anyway ahaha.
eric
 
I

itr206

Guest
In a turbo car. Id prob rather have the revs then the displacement. Esp if its only a 1/2 liter difference.
Trust me, ride in a 1JZ car to feel the difference. My car on stock twins was unbelievably strong. And smooth as hell. Now on the single its even better.
 

lifesnotfair

New Member
Dec 26, 2005
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4 days with my car now. Smooth, strong, full boost below 3k RPM (I don't even notice I have to wait fractions of a second for it to spool)... awesome motor.

OneJoeZee: I think the problem is the following: in the USA, people believe that only with MUSCLE they can race. I mean, look at those monstruous V8's.. 5.7 liters, 7 liters and such... that's not necessary. I mean, there are limits of course, like, say, a 1G engine ona MK3... that might be too small for a heavy car, at 2 liters, yeah.... but the 2.5 1JZ is just awesome.

BTW, for the person who is thinking of doing a 1UZ swap: I asked a person who did it, and did it beautiful (found his webpage)... and he said it would cost at least twice as much as a 1JZ swap. If you ask me, that is a crappy move, unless money is not an issue for you. If it is... then do the 1JZ swap, invest the difference in modifications, and you'll reach 500HP or so (just a wild guess) with no problems. You'd probably have to invest a lot to upgrade the 1UZ's 260 (or so?) HP leaving it "all motor".
 

turbodriz

mk3 onwer
Feb 25, 2006
471
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newyork....N.c
YOU know for a couple of days I have been debating what to do. And you know what a rb26 is only a 2.6L , I have seen them make well over 1000hp built. I know they have stroker kits but it doesnt take it to a 3.0L.
 

Topher E

Trance Head
Aug 4, 2005
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Vacaville
Im planning a 1JZ swap for the summer and the only reason I want to do it is...I want to be able to floor the gas and not have to wait for power. I have been wanting a smooth power band for a while now and the 7m has been great to me. (besides the BHG) I want a car I can drive daily and not have to worry about overheating or it breaking on me on the freeway. The 7M has done that too many times to me... I want something different. I respect the 7M but the 1J seems more appealing to me.