1MZ Max power discussion

[DatSRBoi]

I jsut got into an arguement with this guy who believes that the 1MZ can handle power but Ive seen so many people even TRD4Life and tony the tiger and Greg have blown their motor EVEN under professional tuning. I told the guy 450Whp wont last even with forge piston and all since our motor are too weak even with new stuff in. They will handle 450whp but no way stay long. Can someone tell me whats right and wrong here. I know so many member in here got nothing but the best and still have issues down the road. This guy talks like it will last with 450whp. Those piston or shafts bound to break.

Sorry for bad grammer. just How I am.

[Nyyankees3511]

Nope it cant handle that much power. The 1mzfe was built for economy not performance. So its not meant to handle any big amount power. So your right.

[trd4life]

The guy doesnt know what the hell he's talking about. You could probably do 300-320whp with a properly tuned turbo system on stock internals, thats about it.

[ASG14]

The bigger issue is the Tranny. The 1MZ Auto tranny can't handle as much power as the engine stock.

[DatSRBoi]

Thats what I thought too. Guess because he owns a V8 IS300 that a 1MZ should be godly too.


He makes it sound so easy.

Anyone who blows a 3.0l Toyota block trying to reach 450wheel hp is a hack. They don't understand good machine work, nor do they understand how to safely tune a vehicle. With today's turbo and engine management technology, it is very easy to get 150hp per liter out of just about any motor.

The toyota truck guys are making 400hp on a regular basis with unopened 3vz blocks. The block is hardly unreliable.


To get a reliable 1mz you need:
forged pistons
set of eagle rods that are modified to fit, or custom rods.

Cost: $1200-1900 depending on who you ask.

Machine work and assembly of the lower end, ~$800-1000
head work: (valve job, seals) 300 for the pair, porting & polishing are extra, but not really necessary for the power goals.

Misc gaskets, oil pump, timing belt parts, arp main and head studs, etc.. $1500

So, worst case for above: $4500 and you'll have a very reliable bottom end capable of staying alive for years if you can tune it.

For the Vz blocks, you can just add forged pistons, as the rods are plenty strong for 450hp.

[trd4life]

That must have been brad that told you all that huh? He's exactly right.

[Nyyankees3511]

A v8 is300? Did he swap engines?

[DatSRBoi]

A v8 is300? Did he swap engines?

Yeah. I know he knows allot, but he doesnt know the hardship of the 1MZ to last with such power.

[Midias]

lets let it drop till we see what happens with gregs new motor.

[trd4life]

I just want to make this very clear for everyone. The TRD Camry/Solara Supercharger is very small! Its the charger JR uses for their Civic SI kit. No matter what you do to build the engine, and no matter how much you intercool it, its still a SMALL supercharger. Greg's engine is soooo built he really needs a big supercharger or a big turbo. If he puts nitrous on it like my solara, thats a whole new ballgame! If not, i don see the engine making any really power maybe 300whp w/auto trans. Its an m62 guys, not even a m90 like the GTP grand prix, so basically for a built motor the trd charger blows.

[Mr_Chunks]

am i the only one here that things the factory performance is alright on the 1mz?

Well..
maybe i only think that kuz i drove a 99 windstar for a while....

[shidosha01]

I agree with Gabe about the TRD s/c being too small to have any significant power over 350 whp without NOS. I believe Tony the Tiger is putting out at least 420 whp (maybe more) with about 22psi on his garrett turbo with a built motor.

A built motor or any built motor will have a long life depending on tuning and how you drive. A built high hp motor with a driver who has a lead foot on the daily puts a lot of stress on the motor.

[xavier]

The key is building the motor and building it right. The block itself could probably handle a good bit. Im thinking that with pistons, rods, sleeves, a little valve work, etc would set you up to achieve 400 on great tuning.
*I am in no way experienced wth the 1mz, Im just spewing verbal diarreah of m experience with smaller motors. 1 of the big reasons the 2az can hold power is the cast dutile sleeves and the forged crank. The pistons are junk for ring positioning but then again, arent all NA stock pistons pretty much junk

[Fletch]

I don't think it is a matter of the 1mz being weak relative to other engines though. For kicks I sometimes read the FI threads on my350Z.com and they have all the issues that go along with putting FI on an engine that did not have that design intent. Btw, the VQ seems to like to pop pretty easily on even moderate boosted turbo set-ups, a guess is around 33 - 50%.

Of course, look at the 2jz, it can take high boost and provides huge power output in stock form.

[Nyyankees3511]

am i the only one here that things the factory performance is alright on the 1mz?

Well..
maybe i only think that kuz i drove a 99 windstar for a while....

Factory performance is fine actually. Its on par with the 3.0cl and even maximas.