will 3vze bottomend parts work w/ 3vz-fe

[njbmx]

on the doa racing engine's site. they have forged cranks, rods, and pistons for the 3vze truck engines. does the 3vze bottomend parts crossover for a 3vz-fe or even the 1mz-fe? i dont know that much about toyota engines...sorry, i'm a ford guy. but i would like to do a engine rebuild for my '93 camry, when the engine blows the headgasket.

here is the doa racing site:
http://www.doaracingengines.com/pistons.html

thanks

[warlock]

i dont know about the match but are you trying to blow the headgasket? good luck thay are prity tough.

[Toysrme]

Yes but don't buy their parts.

When you go talk to your engine shop, have them use whatever forged aprts they like to use. It will save you tons of money and time getting parts from DOA.


3vz-e, other than how it is mounted, is almost identical to a 3vz-fe.
There are differances is some of the passages in the blocks, but you can swap DOHC FE heads onto a -E motor with minor work, and gain about 40hp.



Bottom end work is extremely expencive, and not worth the power. A 1mm overbore on either 3vz, 1mz-fe, or 3mz-fe motors will at most amount to 6hp. You can fart in the intake for that amount of power.

Unfortunately the occuring trend for Toyota v6's requires stroking to make an impact on power. Even worse is the fact that stroking, requires custom parts to be made. Extreme $$$ cost for what you could easily get with a turbo, TRD S/C (for a 1mz), or what I list below.


What you should do, is when you bow, or change your headgasket, have your heads ported & polished. There are now 3 3vz-fe's (one race ported - mcelligott, one good street port - luckynumber5, and myself) The FE Toyota heads respond insanely to good porting. 20hp easy, 25hp from a good job, and 30 if you're paying out the arse for it.

A custom Y-pipe should net you 15-20hp.

You can also install an SMT-6 piggyback (find my install guide a few days ago). With no money spent on exhaust, or intake work, or dyno tuning. You can road tune an SMT-6 for 10hp, plus another 2-5 from ignition advance. (no ignition advance for 1mz/3mz motors)

Add the headwork, Y-pipe, and SMT tuning to a stock 3vz-fe and you should be close to, or amxing the stock injectors betwen 230-250hp. (depends on Y-pipe, headwork, and tuning as everything is going to be custom)


Now if you're wanting to build a turbo motor, feel free to have new pistons, rods, and all associated goodies replaced, along with titanium valvetrain bits, and new valves, & headwork.
Replace the crankshafts if you're looking for >450hp

IMHO It should be obvious I don't hold internal work with any regard if you're not doing some serious forced induction.


Please use the button.

[Toysrme]

Here I'll completely whore your thread too! ROTF!!!


This is a (then dirty) 3vz-fe piston


This is a 3vz-e piston from ITM





Notice the piston tops are machined differently. The 3vz-fe to a DOHC (4 valves per cylinder) and the 3vz-e to SOHC (2 valves per cylinder)


This is why a 3vz-e and 3vz-fe are non-interferrance motors when the timing belt breaks. Since we only have like .310, or .320 inch of lift on the valves, the depressions in the pistons are deep enough so that the valves can't smack the pistons.

[njbmx]

so what your saying is that there is no off-the-shelf forged internals for the 3vz-fe or the 1mz-fe engines? b/c i know that i would like to do a one-off 12:1 compression 3vz or 1mz engine and a forged bottomend is much needed for that.
i'm not looking to force induce air into the combustion chambers. i just want close to 300 hp n/a.

also: how much h/p will the bottomend take untill it self-destructs?

thanks

[GeneralBenson]

so could you use the 3vz-fe feahs if ou used the pistons from that motor, and not the -e pistons? i'm trying to hairbrain an idea and see much power you can get out of the 3vz-e. because i may have picked one up for free, and i'm wondering if i could drop it into my 84 celica gts. but i want to keep it rwd, so i don't know if there is a compatible box.

[Toysrme]

also: how much h/p will the bottomend take untill it self-destructs?

For a 3vz-fe.... Atleast 450hp, maybe more. 5vz-fe crankshafts are know to hold 500hp stock, and 3vz-fe cranks are quiet a bit stronger. (Tho you won't find any 3vz-fe's built in the USA, so don't ask for data to back that up)

The pistons, rods and connecting hardware... Not nearly that much. 350-400hp in good tune, with parts in good shape.


GeneralBenson

Fully built (retaining sohc) 3vz-e's are know to make 300-325hp, but that' at extreme cost with about ever possible N/A mod know done. (hi-po pistons, completely redesigned high end cams, very flowed heads w huge single valves, etc...)
DOHC always has the advantage, but by the time you slap in huge ass valves and port it... It's not a huge differance.

They're very similar, but there are a good number of structural differances between the two 3vz's also. Tho most of the bottom end parts are the same size, the majority of them don't readily swap...

so could you use the 3vz-fe heads if you used the pistons from that motor, and not the -e pistons?

... Yes, but note that the hardware is mounted on the opposite side of the engine.
There are two 3vz-e to 3vz-fe conversion threads at Yotatech.com, but the project has not been completed. They wound up finding out that you keep the 3vz-e bottom end, 3vz-fe heads, and have to use some of the 5vz-fe intake parts (because of head orientation)


I say using a 3vz-e is way too much work for so little power. Figure out how to swap a 5vz-fe in there. (haha too tall, you'd have to fab a custom hood) That being said... 3vz-e's can lay down 200-240whp with no problem with a turbo as long as the stock parts are not shot and have been maintained.
The head gaskets are good to go if you have an early one that has asbestos in them.

[GeneralBenson]

how does that engine react to the bottle? and would it even be worth trying to put in an 84 celica?

[GeneralBenson]

bizump

[Toysrme]

They both work fine on n2o... It's all in the tuning like everything else.