Turboing a ae85

[93Levin4AGZE]

if i would turbo a ae85, what do i need to change from the good old ae85?
Or even ae86.
i will put in a 4agze block, with T3 turbo (ballbearing turbine), and all the other turbo setups.(of course the GTZ ecu)
but do i need to change the gearbox?
ae86's are lsd, and ae85 arent? or some 85's are lsd i heard.
what parts in the car do i need changing when doing a engine+turbo conversion?

is ae85 and 86's suspension different?
what are different between the two, apart from the lsd gear box and the 3age and 4age engine?
the look of them? are they the same? seems like they have most in common.......

[badidas]

but do i need to change the gearbox?

you need to upgrade to either a t50 which is weak and wont last long
but will bolt straight up
or a w55,57,58 gearbox which is strong enuff but will require a custom gearbox mount

what parts in the car do i need changing when doing a engine+turbo conversion?

rwd 4age parts are getting hard to come by and people charge a bit for them you would need a rwd altenator bracket,intake manifold,waterpump
exaust manifold, bigger radiator ,wiring loom,computer,gearbox, modified drive shaft if you go the w55 geabox otherwise a standard ae86 one will do for a t50 , intercooler vr4, ae86 diff wont last too long, 8" fuel line and a return line, new fuel tank for efi,

is ae85 and 86's suspension different?

ae85 will probably have drum brakes on the rear and 86 will have disk
and the frount on an ae86 is vented but the ones on 85"s are probably not

what are different between the two, apart from the lsd gear box and the 3age and 4age engine?

the car isnt fwd the lsd would be in a diff not in the gearbox
and the engine is a 3a no such thing as a 3age

according to club 4ag the ae85 should have a t50 gearbox
if thats tru then you can bolt up a 4agze to it but it wont last long
but im sure they run a k50

according to club 4age also the t50 is good for 200 hp
and a w55 is good for 300 hp +

hope that helps

[Ae92typeX]

If your building from an ae85 and going turbo it'd be wise to do some work on the breaks also.

[93Levin4AGZE]

thanx millions for that badidas! cheers!
u hav a great friday man!

[EVLGTZ]

i will put in a 4agze block, with T3 turbo (ballbearing turbine), and all the other turbo setups.(of course the GTZ ecu)
but do i need to change the gearbox?

ok firstly why go ze? could get away for a good old bluetop 4age if your not going to run a lot of boost? ie under 14psi. Money better off spent on a decent ecu and tuning to run the whole setup.

If ya do go gze than the gze ecu aint the best for a turbo setup (well MAP ecu anyway). You got max boost of around 15psi and the ecu is setup for the s/c and seems to restrict the power up in the revs even with the turbo.

Also Nite_B has custom W* to 4age/ze bell housings for sale. These will be of use if going for the stronger w series gear box.

Just my 2 psi...

[badidas]

no worries
oh and forgot to mention you probably have to swap from a cable clutch to a hydrolic clutch master cyldr type
ie you have to cut the clutch pedal off the fire wall and replace it with a hydrolic one

im not to sure on that one tho

[LowRydr]

im presuming your ae85 is alrdy 4aged?

[PumpN]

is ae85 and 86's suspension different?

ae85 will probably have drum brakes on the rear and 86 will have disk
and the frount on an ae86 is vented but the ones on 85"s are probably not

what are different between the two, apart from the lsd gear box and the 3age and 4age engine?

the car isnt fwd the lsd would be in a diff not in the gearbox
and the engine is a 3a no such thing as a 3age

according to club 4ag the ae85 should have a t50 gearbox
if thats tru then you can bolt up a 4agze to it but it wont last long
but im sure they run a k50

according to club 4age also the t50 is good for 200 hp
and a w55 is good for 300 hp +

hope that helps

to answer the first question, no they are the same setup (i think 85 is softer) and the parts can be swaped over, i wouldn't bother with anything remotely stock, the springs are soft, the shocks are crap, get a full upgrade, you need suspension more than power in these cars.

AE85 use K50 gearbox, it is weak as shit, as has been said go talk to nite_b and get a supra box which will cost a bit of coin but its cheaper then breaking precious T50's all the time.
There are no lsd's for the AE85 k-series diff afaik, that and the K-series diff is weak as shit and you dont want that drum rear end, get either an 28X AE86 rear end with disc's and an lsd if you can, not all 86 are lsd and its hard to find a diff which is, 283 and 285 rear end are factory lsd and 282 is open diffed but they can all have aftermarket lsd centres installed, either that or a customised hilux diff (<-- really good option if you can afford it), you will also need to upgrade the front brakes


really what you want to do is take the car off the road, and strip it and rebuild it from the ground up, there is a lot of work involved in doing it properly and its going to take coin and commitment but the end result should speak for itself

[spencer]

There are no lsd's for the AE85 k-series diff afaik, that and the K-series diff is weak as sh*t

Ae85 will have a S-series diff 6.38", K-series I think is a big 9.5" diff out a land cruiser.

[NZ_AE86]

[quote=

AE85 use K50 gearbox, it is weak as sh*t, as has been said go talk to nite_b and get a supra box which will cost a bit of coin but its cheaper then breaking precious T50's all the time.
There are no lsd's for the AE85 k-series diff afaik, that and the K-series diff is weak as sh*t and you dont want that drum rear end, get either an 28X AE86 rear end with disc's and an lsd if you can, not all 86 are lsd and its hard to find a diff which is, 283 and 285 rear end are factory lsd and 282 is open diffed but they can all have aftermarket lsd centres installed, either that or a customised hilux diff (<-- really good option if you can afford it), you will also need to upgrade the front brakes


really what you want to do is take the car off the road, and strip it and rebuild it from the ground up, there is a lot of work involved in doing it properly and its going to take coin and commitment but the end result should speak for itself

All good info but the Hilux diff option is only good for strength. If you are going to do any racing in the car then the Hilux LSD is Shit! They are what is known as a comercial LSD, you can get them tightened but still not as good as an AE86 LSD. If you can get an AE86 diff with TRD LSD then it will handle the power forever. The other option if you not trusting of the AE86 diff is to go to a 7' diff head out of a Liteace van, this can be made to fit in an AE86 housing and can be made to fit a TRD LSD.
Andre at Speedtech Motorsport runs a 7' diff in the 500hp DX!

[10k 20v]

i always thought the standard gze ecu was mapped totaly wrong for a turbo.
Genuraly supercharger ecu's are mapped rich down low becuase of the mazzive boost at low revs to combat detonation.
Just a something i thought you should consider

[Drifter4ag]

I dissagree with TRD LSD / AE86 diff handling the power ..
i had Early TRD LSD in my first turbo ae86 which was around 230hp that one broke axles crown and pinions .. the LSD unit is strong but the rest of the diff is crap for power. You can get TRD center for G series diff which is fine even a shimmed diff in my opinion was just as good as the TRD diff which incidentally i had rebuilt

[JamesM]

i got hilux open diff
i also read somewhere that some late model ae85 got a lsd.. mm.. probaly wrong.. i wouldnt bother with doing the ae85 up.. waste of time. get a cheap bad bodied 86.. who cares about rust.. and then just turbo the blue top.. and then get some shares in toyota engine company like drifter4ag does.. he got good return on those

[NZ_AE86]

I dissagree with TRD LSD / AE86 diff handling the power ..
i had Early TRD LSD in my first turbo ae86 which was around 230hp that one broke axles crown and pinions .. the LSD unit is strong but the rest of the diff is crap for power. You can get TRD center for G series diff which is fine even a shimmed diff in my opinion was just as good as the TRD diff which incidentally i had rebuilt

If you have ever done any real racing with a shit LSD you will know that only a TRD or other after market LSD will do. Factory LSD's overheat and do not work well at all. A shimmed diff cann be as tight as a TRD unit but will never provide the same breakaway and lockup that a TRD unit will. It will also suffer more from overheating due to the extra preload on the clutch packs. If you read my last my last post it says to use a 7' diff if you are not confident with a 6.7'.

[Drifter4ag]

what is a good 7inch diff ? E series ? as far as i can see the G series is the best option if you have a turbo on any ae86 as LSD heads can be found bada bing and new TRD units are still available. F series LSD head is very very hard to find .. probably harder than second hand T series and TRD and other manufacturers have discontinued production of this one.
For 100% predictability .....get a locker

[badidas]

i got hilux open diff
i also read somewhere that some late model ae85 got a lsd.. mm.. probaly wrong.. i wouldnt bother with doing the ae85 up.. waste of time. get a cheap bad bodied 86.. who cares about rust.. and then just turbo the blue top.. and then get some shares in toyota engine company like drifter4ag does.. he got good return on those

why everyone charges an arm and a leg for ae86 an an ae85 cou ld be built to be just as good after all its the same shell and its not that hard to convert from carbed to efi !!!!!!!!

[93Levin4AGZE]

shit theres loads to get sussed turboing a 85 or 86....damn
well cos i only got like 10k and looking for doing all the turbo setups from stronger engine, shell, gearbox to turbo setup
this wud cost well over 10k...
are there turboed 86's i can get under $10k's?

[NZ_AE86]

what is a good 7inch diff ? E series ? as far as i can see the G series is the best option if you have a turbo on any ae86 as LSD heads can be found bada bing and new TRD units are still available. F series LSD head is very very hard to find .. probably harder than second hand T series and TRD and other manufacturers have discontinued production of this one.
For 100% predictability .....get a locker

A 7" diff is strong as hell, I have one in my AE86 race car and Andre at Speedtech runs one in his 500hp 10second DX. They are not that hard to find, but G series will be stronger. TRD still make LSD's for T series and F series diff. Either way each to his own, if you have had trouble with them before and are happy with a G series diff then thats all good too!

[suberimakuri]

you sure they run a 7" c+p?...... E series diff is 7.1", made by Toyota.
As matts wore out c+p's with 230ps 4age turbo, I doubt an E would be good for much more. Let alone the puny axles.

As for crappy LSD's..... I've had a standard hilux unit in my carina for 6 months, and done 3 drift track days on it now.
It's all about speed and shock loading of the diff..
But, a shimmed up version of my diff, as run by Tiny in his Ae86 is absolutely mean... just like TRD, cusco, whatever.

If you're going to the hassle of fitting a diff, why piss around with something only a little bigger.
G series is plentiful, width is manageable, LSD's are around (+ shim).

[gdsup]

well here's my take, the track of the g series has been a great advantage for me, never ever do i worry about busting a stupid t again, or trying to find axles,

lsd heads, :cost of a g series 4 pinnion 4.3 ratio + $350 tops + $120 reshim etc
:cost of a t series lsd $500 + for second hand, good luck trying to find a second hand trd centre for it + rebuild

TRD centres are available new for both at similar cost, but for less than i can find a flogged 2 pinion t series centre i have a mint 4 pinnion diff that i can pop the clutch and get axle tramp all day and not worry about getting home, or finding a bloody disc brake t axle, i dont dont expect it to be like cusco or kazz or trd, but for 1/3 of the price with such similar performance, damn straight you dont hear me complain about G

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