4.2l nissan turbo vers HZ toyota

Submitted: Wednesday, May 07, 2008 at 08:46
ThreadID: 57347 Views:2413 Replies:4 FollowUps:4
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just reading about turbos .......I bought a 4.2l Patrol turbo charged intercooled 2005mod Patrol a while back and kept my 96mod HZ 75 series ute. I drive both and find very little difference in power between the two.
If anything the Landcruiser takes of quicker than the Nissan. There must be something wrong or not???
Cheers
Reiner
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Reply By: Member - Roachie (SA) - Wednesday, May 07, 2008 at 08:53

Wednesday, May 07, 2008 at 08:53
Gearing!!! It's all to do with gearing; Toyota have a much better ratio for their gearbox and diff ratios......

You've only gotta drive each of them down the same steep slope in low range 1st gear, to see that the tojo will "walk" down, where the Nissan will need to have some brake applied.

Now, when you take-ff from a standing start, the same gearing issues cause the Nissan to feel as though it's stuck in a hole.

On the other side of the coin, you would/should have noticed that the Nissan ambles along at lower engine revs when you're out on the highway......

Just my opinion....

Roachie
AnswerID: 302441

Follow Up By: F4Phantom - Wednesday, May 07, 2008 at 11:10

Wednesday, May 07, 2008 at 11:10
I want to bring a slight discrepancy to the table. Gear ratios are really only half the story. If the nissan gears are higher then yes it will start off slightly slower, but as soon as the speed increases and the engine gets to its power band the nissan should then leap ahead, if it was more powerful. My money would be that the nissan is a lot more powerful with the turbo and intercooler if the toyota is naturally aspirated. Each individual gear ratio would have to be compared with the corresponding toyota gear ratio to see how they line up with a power and torque graph. In the end, the more powerful car (if the engine is lugging the same total weight) will get to 100 first but it will not neccessarily reach other speeds first.
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Follow Up By: Member - Bucky (VIC) - Wednesday, May 07, 2008 at 13:38

Wednesday, May 07, 2008 at 13:38
Roachie
You are cheating ( again ) !

Didn't happen to mention that your Nissan has a V8 diesel in it ???
Sort of a little of power advantage, you forgot to mention..
By the way mate, am still procrastinating over a vehicle change..

Will I,......Won't I.........Will I ........Won't I........What will it do to my super ???.........blah, blah, blah, ........blah!
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Reply By: Member - Davoe (Yalgoo) - Wednesday, May 07, 2008 at 12:47

Wednesday, May 07, 2008 at 12:47
Problem was Nissan hobbled the TD 4.2 with a pathetic turbo and tiny intercooler.
Upgrade kits to bring out its true potntial are available but there not cheap
AnswerID: 302479

Follow Up By: Bagwon - Wednesday, May 07, 2008 at 19:42

Wednesday, May 07, 2008 at 19:42
G/day Davoe, I own a gu st 2002,dont know much about turbo,s am i in the same boat.

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Reply By: Member - Justin & Tracey (VIC) - Wednesday, May 07, 2008 at 20:16

Wednesday, May 07, 2008 at 20:16
before i brought my 100 series 2004 diesel i looked at Nissan's found out that due to emission laws the 4.2 turbo inter cooled motor actually has the same pwr as the standard 4.2 turbo model because they are cut back in pwr to minimise emissions. u can get your turbo inter cooled engine dialled up in pwr without much hassles.
AnswerID: 302552

Reply By: kym111 - Thursday, May 08, 2008 at 00:19

Thursday, May 08, 2008 at 00:19
My Dad owns a 1994 Patrol ute. He recently (2yrs ago) put a 2005 td engine in it as the original was getting a bit tired and found it hard to cope when towing the Jayco past a road train.
Hubby & I purchased a 2004 td wagon (both vehicles are 4.2l). Dad's vehicle has (and always had) great pickup, to the point of being able to take off comfortably in 2nd gear from a standstill.
Our slug is slowly loosening up, but I'm not sure it will ever be as good as the ute.
Is this anything to do with the gearing differences between a ute and a wagon? His new motor had only done 10,000kms when installed, probably now up to about 40,000. Our wagon had done 40,000 when we bought it, now up to around 55,000km. So both run in about the same. Our family are known to have lead feet, so the vehicles haven't been pussied along whilst in our ownership.
AnswerID: 302603

Follow Up By: Member - Roachie (SA) - Thursday, May 08, 2008 at 08:35

Thursday, May 08, 2008 at 08:35
Kym,
Yes, it's got a lot to do with gearing.....the final drive (ie: diff ratios) to be precise.

The 1994 ute probably has final drive gearing of 4.1 or 4.3 which is why he can take-off in 2nd gear.

The newer 4.2TD GU would have diff ratios of 3.9 which is (or should be) better for fuel economy etc, as the revs at 100k/h will only be about 2200 (depending on tyre diameter), whilst I'd imagine the 1994 model would be doing about 2500rpm at 100k/h

Roachie
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