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Location:
Melbourne
Registered:
May 2002
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4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Wed, 30 June 2004 04:16
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Hi everyone,
I have done a lot of research on this conversion, and by all accounts it seems that a 4A-GZE conversion into an AE92 Corolla hatch is one of the easiest around. Or is it?
I have read the tech article from here and also a few others that were floating around on the web...but I have to say that none of them really described in detail how to do this conversion. Most of them were just accounts of people's experience with this conversion, and read more like a story than a detailed tech. article. Surely the conversion can't be as easy at it sounds in these articles....what about engine mounts, vacuum lines, fuel lines, oil lines? Surely these can't all match up...there must be some sort of custom work to be done, that wasn't mentioned in these tech. articles?
I want to do this conversion, but before I drop the engine in, I want to turbo convert it. This has been done before many times on a 4A-GZE, but I can't find anywhere on the net that describes in detail this sort of mod like what turbo sizes to use, what fits/doesn't fit, etc.
Does anyone have a good internet reference that describes in detail the pitfalls and adavantages and the mods that need to be done to not only turbo convert but then drop the engine into a Corolla?
Thanks for any help!
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Location:
Brisbane
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Wed, 30 June 2004 04:23
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it's piss-easy with an ae92 GZE frontcut. A complete straight bolt-in. The wiring's the hard part, but still not that hard if you're logical about it.
http://www.rollamods.com/projectGZE.htm
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Location:
Melbourne
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Thu, 01 July 2004 03:49
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Yeah, I can see how it would be relatively easy with an AE92 front-cut that already has a 4A-GZE in it!
I don't think i'll be buying a front cut anyway...just the engine, standard computer (for engineering certificate) and maybe gearbox, if it's easy to fit.
Thanks for the link...looks like it will come in handy when I'm ready to do the conversion.
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Location:
Brisbane
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Thu, 01 July 2004 04:00
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...personally I wouldn't attempt the conversion without a frontcut.
You get the right radiator, AC lines, PS pump/lines/rack, all the electrics needed, the strong gearbox and driveshafts, the correct engine mounts, and the list goes on and on and on and on 
I know a few people that have tried to do the swap from an engine "package" and have had to shell out a lot more $$$ to get the other little bits that were missing.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Thu, 01 July 2004 08:09
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in short... do not do a 4A-GZE conversion into an AE92 without a frontcut.
You would be stupid not to really.
THere are so many small things that you get on a frontcut that you totally miss out on buying just a long motor. THink about it.
also, by striping down the fruntcut before doing the conversion, you get to visualise just how everything fits into your car...
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Location:
Melbourne
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Fri, 02 July 2004 09:59
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Well when I first wanted to do the conversion, I always had in mind to buy a front-cut....but I thought everything I'll need (engine mounts, etc.) are in the Corolla already?
How much would a front-cut go for these days? I want the AE101 MAP sensor 4A-GZE...
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Location:
Adelaide
Registered:
May 2003
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Fri, 02 July 2004 10:07
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One of my mates has done this exact conversion...gone from 4ac engine to GZE. bit of work involved but not to hard. had to do things like change fuel tank to EFI and lines. and wiring...but not to hard. also change sus to accomodate discs on the rear and that sort of thing. goes well. a few things didnt fit like washer bottle but got one out of some other car that fits good, i got GZE 86 that has been converted. GZE conversion highly reccommended. great engine!
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Location:
Adelaide
Registered:
May 2003
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Fri, 02 July 2004 11:31
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My GZE ae92 was as Jason described. Pretty much pull out and drop in.
My biggest hassles were wiring (i wasnt confident enough at first, and so a mate gave a hand, and my intercooler piping. Had to modify that setup a few times.
The other big hassle was that i did it over christmas, hence most businesses were closed when i needed stuff  . Up side was that it wasnt freezing cold, and i had time off.
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Location:
Brisbane
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Fri, 02 July 2004 20:57
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if you're putting an ae101 GZE into the rolla then you will need to source a few extra bits.
-you will need an E series mechanical speedo drive to replace the electronic sender in your gearbox. or your speedo wont work.
-you will need to source an ae92 GTZ rear gearbox mount if you want to bolt the motor in straight with an E series gearbox
-You will have to modify the Radiator mounts to fit the AE101 radiator, it is taller than the ae92 radiator. If you plan on using your original 4af radiator then you will have to run a section of pipe/hose across the top of the headers the same as an ae82 twincam does. The radiator from an ae92 GTZ or an AE93 4age is a direct fit.
-the AE101 aircon doesn't easily fit
-you will need to source an ae92 timing-belt end engine mount, or hacksaw a piece off your 4af mount.
-you cant use the ae101 front swaybar setup on your ae92, if you get an ae92 cut, you can use the swaybar setup.
-it is possible to swap the tach sender in your gauge cluster with the one from the ae92 GZE cut so your tacho works without the need for a tach adapter which can cost an extra $100 or so.
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Location:
Melbourne
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Tue, 06 July 2004 11:20
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Thanks jasonp1977, i knew there were some things i had to get that were extra...that's exactly the sort of info i was after. It now seems to me a lot harder though, than I first thought.
Takai, you are in Melbourne i see? Did you do the conversion yourself or go to a performance shop and if so, which one?
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Location:
Adelaide
Registered:
May 2003
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Tue, 06 July 2004 12:12
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I did it myself, and it was really easy. Did it at home in my own garage.
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Location:
Brisbane
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Tue, 06 July 2004 22:16
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there's SFA performance difference between an ae92 MAP GZE and an AE101 MAP GZE. So if you get an AE92 MAP GZE it's an extremely easy conversion.
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Location:
Melbourne
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Sat, 10 July 2004 06:05
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Yeah it's only like 4kw difference (AE92: 121kw, AE101:125kw) and bore*stroke, compression, boost, etc., is exactly the same.
What I'm interested in is the make of the engine. Are the parts stronger and more reliable in the AE101 version, does it use better technology, etc.?
I'm looking for an engine that will last me, and take pretty much whatever I can throw at it, so it's important I get the latest and most up-to-date version....assuming that it will have better made parts, etc. If you can convince me that they are identical in that area, then I'll consider getting the AE92 version for ease of conversion 
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Location:
Brisbane
Registered:
May 2002
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Re: 4A-GZE conversion into AE92 can't be easy as it sounds!?!
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Sat, 10 July 2004 07:53
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the ae101 motor actually uses lighter rods than the AE92 motor.
The AE92 MAP GZE uses the same rods as the smallport 4age 100kw motor.
The AE101 MAP GZE uses the same rods as the silvertop 20V 4age, 13201-19126 ROD SUB-ASSY, CONNECTING 01.10.1991-01.05.1995 4AG#..AE101
so if you were really anal about it you could go as far to say that the AE92 MAP GZE is stronger than the AE101 GZE. But in reality they're both as good as each other, and that is only as good as the service life they lived in Japan.
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