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Aaron Mead
DieHard
NT
TT

Posts: 660
Reg: 03-2006

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Sunday, October 01, 2006 - 10:28 pm, by:  Aaron Mead (Aaron) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Well, as the title says, how do you know if your engine is suitable for a big whack of boost and fuel if its internally stock? 1jz's are tough, but not indestructible. I just wanna know the way to tell. Im thinking about a 3540r, with all the required supporting mods. I think I'll only crank it to 270rwkw until I get a new box though. The one I have at present is an MV rebuilt to stock spec.

Supporting mods list:

*Fuel system (600cc, Bosch040)
*ECU (Autronic SM4)
*Intercooling (HKS front mount)

Im guessing a leakdown and compression test for a start? I
Peter Abdelmessih
Tinkerer
victoria
2.5 GTTL

Posts: 15
Reg: 05-2006

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Sunday, October 01, 2006 - 10:54 pm, by:  Peter Abdelmessih (Peter_1jz) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

that would be a good start. put on dyno and see if you can get a full check.
Ryan Stadeli
Tinkerer
Victoria
TT

Posts: 33
Reg: 09-2006

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Sunday, October 01, 2006 - 11:02 pm, by:  Ryan Stadeli (Ryans) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Aaron!

JUST DO IT.


How far do you want to go Aaron?
Maurice Diggler
TryHard
Victoria
Twin Turbo

Posts: 297
Reg: 06-2006

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Monday, October 02, 2006 - 01:50 pm, by:  Maurice Diggler (Mau_rice) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Aaron, plenty of people on here have upgraded to single with no major dramas, the only problems you hear are when a car is pushed too far (boost and tuning) or when something lets go like the transmission or differential.

If you do it smart (which I'm sure you will) you will be fine.

Just remember, you bought Rob Haydens old car, which has a fresh motor in it, and we all know how much Rob pampers and babies his cars. so you should be all sweet.

As Ryan said, JUST DO IT!
Marc Vipond
TryHard
Queensland
Soarer TT JZZ30

Posts: 207
Reg: 05-2006

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Monday, October 02, 2006 - 02:19 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)

WHAT!?! 1jz's aren't indestructible? That's the first time i've ever heard that LOL 1jz internals are almost bullet proof I've heard of people pushing well over 350rwkw with stock internals :-) Just make sure that when you have your set-up tuned it is tuned for power and longevity instead of just high HP! Too many people are obsessed with bloody figures and are willing to compromise their engine to get the numbers they want!
Aaron Mead
DieHard
NT
TT

Posts: 663
Reg: 03-2006

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Monday, October 02, 2006 - 09:07 pm, by:  Aaron Mead (Aaron) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Yeah I've heard and seen the results. Just wonderng if theres way to check bearing condition, gasket integrity without opening her up. Guess I cant have my cake and eat it too.
Benjamin Burgess
DieHard
NSW
Toyota Soarer GT-TL

Posts: 646
Reg: 07-2005

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Monday, October 02, 2006 - 09:21 pm, by:  Benjamin Burgess (Jampac) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Do a compression test and a leak down test if your concerned about the gasket and rings. You don't need to crack it open for these two tests. As for bearings, unless its been run with low oil, the wrong oil, or poorly serviced, big end should be ok, but you'll know pretty quickly if its stuffed. You can get a dyno operator to listen using ear muffs to the engine closely as it goes up thru the revs on the dyno. Its a good way to hear little things in the engine that don't quiet sound right.

I'd be replacing the front and rear main seals, coilpacks and make sure all sensors are functioning. Also do the belts. You should replace any consumable (serviced part) on the engine that is of unknown ks and age.

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