4A to 2J.. What to budget for

[Casey-G]

She definitely will need to come inside a little, with some help im coming to the conclusion of a 3rd gen (vvti 1jzgte) frontcut of a JZX100 chaser, and utilizing the trans tunnel i.e donating it into the e7.

I will try and get the engine/box as centered as possible in the car without putting the shifter way back in the rear seat area (or what was once a seat area).

still doing research as of right now so nothing is set in stone.

[mattysshop]

i've been helping out on a project of my mates (Extreme Custom Engineering).. and i would suggest that you try and get the engine as far back as possible.. this is prolly as far back as we could have gone before it would have been looking rediculous and inturuding the cabin... and this is a street car that will be driven even by his wife... (i will do a full build thread on this soon ) remember that in a small engine bay everything is custom fabricated.. mounts, plenum, manifold, rack moved this way or that way, etc etc.. that alone you will have to factor in.. but it depends on the build you want.. 1JZ rolla seems to be a pretty gun fabricator and tackles all that himself.. i hope you have a high frequency tig

i have plenty of pics... but i'll save that for the main thread..

[Casey-G]

i've been helping out on a project of my mates (Extreme Custom Engineering).. and i would suggest that you try and get the engine as far back as possible.. this is prolly as far back as we could have gone before it would have been looking rediculous and inturuding the cabin... and this is a street car that will be driven even by his wife... (i will do a full build thread on this soon ) remember that in a small engine bay everything is custom fabricated.. mounts, plenum, manifold, rack moved this way or that way, etc etc.. that alone you will have to factor in.. but it depends on the build you want.. 1JZ rolla seems to be a pretty gun fabricator and tackles all that himself.. i hope you have a high frequency tig

i have plenty of pics... but i'll save that for the main thread..

Sick build there man.

We really only want a high freq tig if we want to weld ally... more or less high freq start is just a luxury. not sure if im gonna use ally or stainless just yet, either way i have the facilities available to me for either.

Ive been associated with the metal trade for 7 years give take a bit. i know it isnt all that long but i quite enjoy it and think i can tackle quite a bit of this without much hassle.


Just looking at frontcuts now getting some quick quotes ect.. ill probably make up a spreadsheet in excel to log all costs and hours ect..

[mattysshop]

sweet as!, well then you sound like your in for some fun nights ahead

[Casey-G]

I cannot make my mind up on either a 2j or a 1j

2j will require more seperate parts bought:

- R154 box..flywheel, new clutch ect and Buying a haltech straight up instead of orig plan to use factory ecu till its on the road..

plus a fair bit more..

the 1j on the other hand, i could go a half cut and basically drop a manual package in (i.e make it fit) use the factory computer, ditch the twins for a gt35r for some extra space in the bay (not that there will be a lot) then really my main drama's will be mounting and actually fitting the engine.. instead of tracking down parts to actually assemble what will go in the car...

Pro's to 1j>2j in this particular situation:
availability
ease of removal to fitting stage
yeah maybe a tad lighter
able to run off some big numbers in stock form regardless ..
probs a little more revvy than a 2j (?? clarify)

cons:
-.5L capacity, obvious missing out on some low down torque
maybe not quite as strong a support for aftermarket parts
???
its not a 2jz


??

will ring up a few more places tomorrow for some more quotes/see whats out there... ideally i think if im going a 1jz a JZA70 frontcut will fit the bill perfectly.

[Bronald McDonald]

JZA70 front cut? tell him he's dreamin'

[Casey-G]

Yeah, aint gonna happen.


Made my mind up on going a 2J..no shit. An aristo frontcut is on the books pending a few little details as i think as i may be able to salvage a few extra things off it... i could say that a part of me wants to keep it auto for the first stage of the build but im really not fond of them at all. So i will probably *try to sell the auto gear off, i dont know how much demand there is for the stuff but ya get that.

Will the trans tunnel of a auto aristo half cut accommodate a manual box?

Also coming from a fitment point of view which 2J released vehicle has the front sump? I believe this will better suit me fitting it into an e7.

cheers to all yet again.

[mattysshop]

depends on how far foward you want to mount it..

the supra rear sump is what we used in the gemini... this allowed us to effectivley line up #2 piston with the front axle line (strut towers are about 2 inches back from the axle line for +ve castor).. and the rear was recessed nicley but not rediculous..

[Casey-G]

Okay thanks, did the sump clear majority of the steering components?

[mattysshop]

moved the rack a little lower to give more clearance.. recessed the cross member slightly for clearance of the rubber coupler.. and a nice machined billet uni for the shaft just help keep things small and neat

once powdercoated and everything else is freshened up you can't see it's been touched...

[Shakotan_Aaron]

have you considered 1uz? i dare say it maybe lighter as there are no turbos and all alloy.

fairly cheap and easy to find. there are adapters about now for t56 6-speeds as well as w58 bell housings for them.

[mattysshop]

no turbo's = 50% less fun

[Shakotan_Aaron]

each to there own. i think a front heavy car is not going to be fun.

i brought a 2j for my daily driver.

when i go back to aus, ill have something 4cyl and n/a for the fun car. turbo silva is a bit boring at times.

some guys over here actually swap there 6cyl out for 4cyl. i was almost going to buy a r32 with a sr20det swap, the supras in the jgtc class used to run 3sgte (think they have gone v8 now) 350z with sr20 swap etc. soarers with 3sgte.

[big_zop]

Casey, here are some weights I have found in my research. I have tried to only include those that have some info on what state they were in when the figures were obtained

Complete 2UZ (w/ iron block/oil/coolant/auto flex plate) - 245kg
Complete non VVTi 1UZ (w/ auto flex plate) - 190kg
Complete VVTi 1UZ - 220kg
2JZ-GTE - 269kg
LS-1 (w/ ALL accessories, stock exh manifolds) - 210kg

Getrag Trans - 69kg
R154 Dry Weight - 46kg
W58 (dry) - 37kg
T56 - 72kg
A340 (drained but fluid in converter) - 78.5kg

Sorrry, dont have a 1JZ to compare but its block is about 26mm shorter than the 2JZ.


Aristo will have a front sump (also sourced from JZX models),
Rear will be from Supra/Soarer
Mid will be Crowns.

[1JZ-Rolla]

Will the trans tunnel of a auto aristo half cut accommodate a manual box?

Also coming from a fitment point of view which 2J released vehicle has the front sump? I believe this will better suit me fitting it into an e7.

cheers to all yet again.

Yep, Aristo tunnel should certainly fit an R154. I think you're gonna have to modify the floorpan right back past the floor brace that runs across the car (that the front seat bolts run through) to get it to work though. One of the reasons my motor sits on a 20mm lowered crossmember and unmodified firewall is to avoid this specifically (and the auto box I run is smaller than the manual).

Sump choice all depends how far back you want the motor to sit. If you don't go back past the firewall, front sump is ideal and requires no mods. If you put two cylinders of the engine in the cabin, you'll likely be looking at mods to either a front or rear sump, cause the steering rack takes up quite a bit of space behind the crossmember.

Height wise you shouldn't have a problem with the 2JZ, I've got plenty of headroom with the 1JZ (bearing in mind its 20mm lower on the crossmember than standard).

Single turbo is a no-brainer decision, you simply won't get twins in there with any sort of ease, plus they are a pr1ck to work on in comparison down the track.

Measure twice, cut once...... that's all I need to say