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Location:
Brisbane
Registered:
November 2002
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:01
 
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How bout you accept what it is, a non-boosted turbo 1JZGTE and drive it around like a Nanna trying to make sure it stays safe until you work out what to do with it? 
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Location:
Brisbane
Registered:
November 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:04
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I'm actually trying to go one better - finding out if it's a shit idea BEFORE anything goes awry.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:06
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Hehe  I can't see any reason while it would be a problem. The engine will just never see boost and won't adjust the mapping accordingly. What do you care what its like at WOT anyway, do you have any need to take it there in its crippled form?
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Location:
UK
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:12
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just wait until you get the turbo/s .. far more sensible.
Seems a totally crazy idea to me..
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Location:
Brisbane
Registered:
November 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:13
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Well yes - if the engine is only making 100kw then you would will probably need to floor it once in a while... highway onramps and the like.
If noone can come in here and tell me I'm going to have heaps of problems, then I'll just be doing it. I'll actually stick it on the dyno to be safe as well, but don't want to go to the effort if someone's proven it will cause issues (eg. auto not liking to shift under WOT).
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:16
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| 7M-Brisbane wrote on Sun, 08 February 2004 21:13 |
Well yes - if the engine is only making 100kw then you would will probably need to floor it once in a while... highway onramps and the like.
If noone can come in here and tell me I'm going to have heaps of problems, then I'll just be doing it. I'll actually stick it on the dyno to be safe as well, but don't want to go to the effort if someone's proven it will cause issues (eg. auto not liking to shift under WOT).
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I highly doubt you will have a problem to floor it, you'll just WANT to floor it to go faster up highway ramps and the like. Damn man, my current daily driver doesn't even have 100kW!  If you're going to check it out on a dyno, then it's good to see you're playing it safe, but it's probably best to just not drive it if you can avoid it, it will always be a compromise and there is probably a better way.
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Location:
Brisbane
Registered:
November 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:28
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Having owned more than one 7M in my time, let's just say you won't find someone more wary.
As an example, I bought a new oil filter about two months before my motor was available to be picked up
Hedgehog - thanks for your input... I was hoping for something a little bit more helpful but an opinion is an opinion I guess. Do you have anything to add to your tirade or is that it?
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:34
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| 7M-Brisbane wrote on Sun, 08 February 2004 21:28 |
Having owned more than one 7M in my time, let's just say you won't find someone more wary.
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Haha, fair call
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 13:43
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it should be no different to running it with an intercooler pipe not connected - it should be ok as long as he grandma's it around.
how is he planning on getting an exhaust on it?
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Location:
Brisbane
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 14:20
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I can't see there being any major dramas, although I don't think it will run that great either. When you floor it the ECU will see zero manifold pressure (or close to it), and that can occur on a turbo engine so that's not going to be a problem. However, you've removed a dirty great exhaust restriction (two of them actually) which the ECU was mapped for, and that's the only thing I can see causing issues... might make it run a bit lean? Probably won't be a big deal though since these things are mapped pretty rich to begin with. It will definitely never ping though!
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Location:
UK
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 16:15
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| 7M-Brisbane wrote on Sun, 08 February 2004 13:28 |
Hedgehog - thanks for your input... I was hoping for something a little bit more helpful but an opinion is an opinion I guess. Do you have anything to add to your tirade or is that it?
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nope.. thats it  i'm just flummoxed as to why.. but hey.
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Registered:
August 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 22:22
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Ive been in a non-boosting 1jzgte MA61. (with both turbos still on)
Can't comment on wether it ran rich or lean but it still wasnt too bad to drive, not that it was driven for too long either as we were trying to determine what was wrong with the turbos. Possibly even comparable to my 6mge supra.
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Location:
Perth
Registered:
October 2003
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Re: Has anyone ever run a 1JZ minus turbos?
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Sun, 08 February 2004 23:56
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When i was finishing my conversion I drove my car about a bit without the intercooler not hooked up. i.e. the boost was just being blown into the engine bay. The car went fine, but I have a Haltech so i dont know how it would go with standard management.
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Location:
Brisbane
Registered:
May 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Mon, 09 February 2004 00:00
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I'm amazed you didn't blow up both your turbos doing that... they would have been overspeeding something awful!
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Location:
Perth
Registered:
October 2003
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Re: Has anyone ever run a 1JZ minus turbos?
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Mon, 09 February 2004 00:08
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Nah, I didnt push it or anything like that, just had to take the car a couple k's to the exhaust shop and back.
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Location:
Sydney
Registered:
March 2003
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Location:
Perth
Registered:
October 2003
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Re: Has anyone ever run a 1JZ minus turbos?
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Mon, 09 February 2004 02:56
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When i took it to the exhaust shop i was only running on the dumps, im pretty certain i remember the wastegates screaming away, perhaps im just lucky i didnt break em Norbie, didnt really think too much about what i was doin 
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Mon, 09 February 2004 03:16
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don't know if it is the same, but my mate had a ca18det being put it in a s12 silvia and he drove that around for quite a while with the intercooler installed and no turbo. His inlet temps were very cool and no damage was done.
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Location:
Brisbane
Registered:
November 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Tue, 10 February 2004 10:36
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nope.. thats it i'm just flummoxed as to why.. but hey.
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It would be convenient to have a car to drive as I am soon moving house... also makes it much easier to chase car parts with a running car!
The main reason, though, is troubleshooting - and for this reason I thought it was actually quite a good idea!
I don't want to spend a bunch of money on a turbo, intercooler and new exhaust, only to find that something is wrong with my engine/ECU/cooling system/installation method and I have to spend heaps of money.
I'd rather get it on the road and have it driving around for a month or so while moving house and whatever, just to see that everything is in good order before flogging the arse out of it.
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Location:
Melbourne
Registered:
September 2002
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Re: Has anyone ever run a 1JZ minus turbos?
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Mon, 15 August 2005 07:01
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The car drives ok without the turbo attached. Feels like an underpowered 2.5L dragging around a 1.5 tonne car (soarer).
I was doing something stupid on the freeway at ... a stupid speed when the cooler hose popped off in an interesting way.
Black smoke out the back as I was at about 6500rpm and the manifold went from 14psi down to 0 in the space of 1/2 a second.
It was the middle of the night. Pulled over and realised I coundt do squat anyway... so drove home.
Stock ECU is much better at handling "issues" than any Haltech will.
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