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Tim Appleton
TryHard
QLD
UZZ31

Posts: 347
Reg: 07-2005

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Monday, October 23, 2006 - 03:34 pm, by:  Tim Appleton (Timbo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I recently did a compression test and found that 7 out of 8 cylinders gave a figure of around 200psi while cylinder number 7 gave a figure of 165psi. What are the likely consequences of running around with this low compression? I haven't checked if it's rings or valves, but might have to do this shortly.

I have heard in the past that Toyota motors have very hard bores, so a re-hone is less likely if I simply want to go swapping rings? Is this just urban legend?

While I'm asking questions - what else should I do if I have the bottom end off of a 160k old motor? Shells, and all rings?
Anish Varsani
TryHard
QLD
V8 UZZ30

Posts: 436
Reg: 07-2005

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Monday, October 23, 2006 - 06:48 pm, by:  Anish Varsani (Yomama) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

If it drives well, don't bother touching it. Will be pretty expensive unless you're going to remove the engine from the car and do everything yourself.

Other thing you could check is the valve adjustment. Wouldn't have thought it'd make much difference, but I've seen it myself on bike engines.
Neil Griffiths
Trader
NSW
212Kw @ 8psi MANUAL Super Charged UZZ31 :-)

Posts: 2833
Reg: 07-2005

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Monday, October 23, 2006 - 07:50 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Just leave it and drive it...

If & when the engine dies, replace the engine.
Fruitless rebuilding a 1UZ.

New VRS set is $1,500.
Tim Appleton
TryHard
QLD
UZZ31

Posts: 348
Reg: 07-2005

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Monday, October 23, 2006 - 08:58 pm, by:  Tim Appleton (Timbo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Thanks for quick responses. I guess I'll just be driving it 'til it dies then.
Lew Radbourn
Trader
Queensland
jzz30 ute / uzz30/ 2 X uzz31

Posts: 1384
Reg: 07-2005

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Monday, October 23, 2006 - 09:16 pm, by:  Lew Radbourn (Marlew) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Tim that could be a long time mate you will be married with a 10 yr old kid before it dies
Graham Dollisson
DieHard
QLD
GTTL Morris Marina P76

Posts: 940
Reg: 07-2005

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Monday, October 23, 2006 - 09:50 pm, by:  Graham Dollisson (Alloyvee) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

A few years ago, I saw an article on a guy with a LS400. He had clocked over 1 million kms with just proper servicing. No rebuild. Those dam V8's will last forever!!
Neil Griffiths
Trader
NSW
212Kw @ 8psi MANUAL Super Charged UZZ31 :-)

Posts: 2837
Reg: 07-2005

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Monday, October 23, 2006 - 09:53 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

And a STOCK 1UZ pulled 400Kw ATW yesterday on 22psi Boost :-) hehehehehehehe
Then it couldnt get traction on the dyno. ( Even with a few fat fella's sittin in the boot )
It now lays rubber at 100kph.
Cihan Aday
Goo Roo
"1JZ Surgeon"
JZZ30

Posts: 1431
Reg: 07-2005

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Monday, October 23, 2006 - 11:46 pm, by:  Cihan Aday (Cihan) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

400kw ATW
Holly barbeques batman!
Colin Kirkpatrick
TryHard
NSW
Soarer UZZ31 & UZZ32

Posts: 489
Reg: 07-2005

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Tuesday, October 24, 2006 - 08:41 am, by:  Colin Kirkpatrick (Colin) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

400kw ATW, Neil what type of car was that V8 in???
Man that person can say eat your heart out you TT boys!!!
Tim Appleton
TryHard
QLD
UZZ31

Posts: 351
Reg: 07-2005

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Tuesday, October 24, 2006 - 08:45 am, by:  Tim Appleton (Timbo) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

That's awesome, Neil!!!

Did you get to the point of failure on anything? Or is that classified R&D information? I remember reading that you wanted to find the limits in the name of research.
Brad Elphinstone
DieHard
NSW
MR2 Spyder

Posts: 503
Reg: 07-2005

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Tuesday, October 24, 2006 - 09:16 am, by:  Brad Elphinstone (Belphins) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Do tell!
Antony Borlase
TryHard
QLD
UZZ31 (V8 Limited)

Posts: 187
Reg: 07-2005

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Tuesday, October 24, 2006 - 01:01 pm, by:  Antony Borlase (Borlase) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

That must be one big supercharger setup Neil, any chance for some pictures?

...maybe a movie of people trying tohold it down?
Phil Gibson
DieHard
WA
'94 black/black UZZ31

Posts: 764
Reg: 07-2005

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Tuesday, October 24, 2006 - 02:22 pm, by:  Phil Gibson (Sciflyer) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

wtf

cant be stock compression surely?

Or you were using racing fuel?

either way thats pretty damn impressive
Neil Griffiths
Trader
NSW
212Kw @ 8psi MANUAL Super Charged UZZ31 :-)

Posts: 2839
Reg: 07-2005

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Tuesday, October 24, 2006 - 06:15 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Can't say..

Is Twin Turbo'd..

Stock as a rock 1UZ..

Pump Gas..

Water Injection with a FMIC..

As I have said before and will say again..It's ALL in the TUNE :-) Not the compression..
Blaine Hanson
TryHard
WA
1991 GT, 1993 GT, 1993 LTD, 1997 LTD

Posts: 412
Reg: 08-2005

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Tuesday, October 24, 2006 - 07:04 pm, by:  Blaine Hanson (Blaine) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Neil Griffiths wrote on Monday, October 23, 2006 - 09:53 pm:

1UZ pulled 400Kw ATW



Good stuff. There is hope for my dreams yet.
Hey Neil you want to come to Perth early next year and tune my car ?
Neil Griffiths
Trader
NSW
212Kw @ 8psi MANUAL Super Charged UZZ31 :-)

Posts: 2843
Reg: 07-2005

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Tuesday, October 24, 2006 - 07:06 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Mmmmm NOPE,,sorry mate...To much happening here..hahahah :-)
Ollie Ernst
DieHard
ACT
UZZ31 Soarer V8 Limited & UCF20 Lexus LS400

Posts: 699
Reg: 07-2005

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Tuesday, October 24, 2006 - 07:36 pm, by:  Ollie Ernst (Oli_g) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I take it that 1UZ resides under the bonnet of a Celica GT4, yes?
Neil Griffiths
Trader
NSW
212Kw @ 8psi MANUAL Super Charged UZZ31 :-)

Posts: 2847
Reg: 07-2005

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Tuesday, October 24, 2006 - 08:26 pm, by:  Neil Griffiths (Aussiesc) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Naaa Ol's..under MINE :-) HAHAHAHHAHAHHAHA
Peter Nitschke
JunkFilterer
South Australia
GT4.0 V8

Posts: 6189
Reg: 11-2004

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Wednesday, October 25, 2006 - 01:04 am, by:  Peter Nitschke (Pen) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Even more awesome!
Marc Vipond
TryHard
Queensland
JZZ30 GT35R

Posts: 272
Reg: 05-2006

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Wednesday, October 25, 2006 - 02:40 pm, by:  Marc Vipond (04awe) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)


Colin Kirkpatrick wrote on Tuesday, October 24, 2006 - 08:41 am:

400kw ATW, Neil what type of car was that V8 in???
Man that person can say eat your heart out you TT boys!!!



Man I've heard of quite a few TT's that are pulling 400kw/atw or close enough with stock internals. A 2.5L straight six making that sort of power is impressive a 4.0L quad cam eight well that's not bad but there is a bucket load more potential! (probably not on stock internals though!)

Still much respect to the pilot of that low flying jet! 400kw/atw mmmmmmmmm wouldn't it be nice :-)
Steven Farmer
Tinkerer
ACT
Soarer V8

Posts: 28
Reg: 07-2005

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Wednesday, October 25, 2006 - 05:50 pm, by:  Steven Farmer (Farmsci) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I can back up that 400rwkw from an internally stock 1uz as i watched it happen!
Dan McColl
Goo Roo
Victoria
UZZ 32 V8 Soarer #138

Posts: 1414
Reg: 07-2005

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Wednesday, October 25, 2006 - 05:51 pm, by:  Dan McColl (Hoon) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

I haven't ever heard of a stock internal 1jz making anywhere near 400 RWKW. Simon is close with a 2jz, but I'm not sure what internals he's running.

You may be thinking of RWHP which is lots different.

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