Questions for all Supra fanatics...

[trd_chik]

just got my new baby today...
a ga70 mk3 supra...

just wondering as ive got a 2jz on the way if...
the w58 gearboxes bolt up...? do they work? do u have to change the bellhousing?
or do u have to use a r154..?

also if anyone in CHCH (or south island) has any mk3 supra bits that they want to sell please let me know especially the black interior, struts and springs etc

[d1 mule]

W58 work, BUT need new bellhousing/clutch etc

[thegreatestben]

JZA80's with the 2jzge had w58 so can use the bell out of one of those, or niteparts make a bell.

[Dell'Orto]

If you're meaning 2JZGTE, I'd not bother with a W series, it wont last long with the torque they make. If non turbo, sweet as.

[Mr.Phreak]

If you're meaning 2JZGTE, I'd not bother with a W series, it wont last long with the torque they make. If non turbo, sweet as.

+1

Unless you're going to drive it like a granny....which kinda defeats the purpose of the swap

[MrOizo]

If you're meaning 2JZGTE, I'd not bother with a W series, it wont last long with the torque they make. If non turbo, sweet as.

If the W58 is from the JZA80 (big shaft), itshould be sweet as. Saying that, there are many out there running the early small shaft W58's.

But yeah...V160 is the only way to go... been there, got that

[deaf_rattle]

or rebuild the w box with straight cut gear set.
wont be destroying that in a hurry

[postfach]

If the gears were manufactured in the same way, of the same material, then a straight cut gear will be weaker than an helical cut gear (less surface area to distribute the load). The advantage is there is no sideways load on the bearings. Buy the biggest box you can afford I have no trouble with my 1JZ-GTE/W58 combo, but a 2J produces more torque.

But yeah...V160 is the only way to go... been there, got that

Was your car factory manual? Why go for the 6 speed over the R154? I know its supposed to be a bit tougher but won't you need a 3.2 diff as well?

[cat007]

torque kills gearboxes - and W boxes aren't really that strong. They're ok for a 1G but for a 1JZ/2JZ or 7M with high hp, comes high torque....and then BANG!

R154 is the cheapest safest option.....

[MrOizo]

If the gears were manufactured in the same way, of the same material, then a straight cut gear will be weaker than an helical cut gear (less surface area to distribute the load). The advantage is there is no sideways load on the bearings. Buy the biggest box you can afford I have no trouble with my 1JZ-GTE/W58 combo, but a 2J produces more torque.

But yeah...V160 is the only way to go... been there, got that

Was your car factory manual? Why go for the 6 speed over the R154? I know its supposed to be a bit tougher but won't you need a 3.2 diff as well?

I am factory auto. I have the 3.9 and thats not soooooo bad. sit at 2600 @ 100km/h in 6th. I was looking for something a little more suited but nmot luck really. will worry about that at a later date

Was told first would be the ultimate stump puller. might have been the case if i had the factory manual 4.11 in there.

[trd_chik]

hehe yay.. very helpful info thanks guys...

[Malcolm]

If the gears were manufactured in the same way, of the same material, then a straight cut gear will be weaker than an helical cut gear (less surface area to distribute the load). The advantage is there is no sideways load on the bearings.

are you sure about that? I'm not convinced. More surface area just means less pressure on the face, reducing the chance of local yielding (which I've never seen occur in a gearbox). Even if it was the case, helical gears don't make contact with the entire tooth at once, that's why they're quieter - the contact surface moves along the tooth as it rotates, meaning you have a more gradual transition from tooth to tooth. Anyway, gears usually fail because a whole tooth (or many) are stripped off the gear, and I suspect the geometry of a helical tooth would create stress-raisers at the leading edge of the base of the tooth, which would make them more prone to failure at lower loads. Add to all this that because a helical gear has additional axial (thrust) loads on the teeth, you're putting more force into the tooth for the same amount of torque, which would make them even more likely to break

[trd_chik]

hey does anyone know if 7mgte injectors work/plug straight into and run in a 1ggte??
rumour has it they do..
anyone got any light to shed on this?

[thegreatestben]

No wrong impedence. The 7MGE ones are the same as 1GGTE gen 3 ones (bright green)