I've got a 13T that I'm going to be putting a 2T-GEU head on. I now have a 2T-GEU EFI setup on it's way to me, and I'm looking at the option of supercharging this setup with an SC12 from a 4A-GZE. Now I know that a 2T-GEU had already been done with this setup, with the standard 2T-GEU computer remapped to suit boost. HOWEVER, I've also read that when creating your own 2T-G EFI setup, 4A-GE ECU's can be used as a cheaper, more accessible option as both engines operate within a similar rev range.

 

What I'm wondering is: would I be better off using the 2T-GEU ECU remapped, or could I use a 4A-GZE ECU which is already setup to recognize boost?

microtech

 

note: word is you can bastardize the AC compressor mount to mount a Super charger.

 

Cheers

Jordan

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Edited May 24, 200818 yr by Sbox

I'd seen that ECU on eBay. That's the one I was planning on buying should the 4A-GZE ECU be the way to go.

 

Would prefer not to go for an aftermarket ECU if I can avoid it.

I have a 4AGZE ecu you can have for $50 posted, Only problem is its a AFM ecu.

Thanks for the offer AE70. I've got the standard 2T-GEU setup (including ECU) on it's way. I'll do a bit more research before I make a decision on 4A-GZE vs. 2T-GEU ECU first though.

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Edited May 24, 200818 yr by Sbox

probably depends on how much boost you are planning to run.

I'm pretty certain the 4A-GZE ECU is better than the 4A-GE ECU for all boosted applications. Obviously a fully programmable ECU is going to be better than either of those every time, but who really has the money???

A good while back there was an article in Hot 4's (issue 44??) of a TA22 Celica that was powered by a supercharged EFI 2t-g. The supercharger was a sc12 and the computer was from a Camira (delco unit).

The owner was a Tim Frost and the car went by the name "4sfed". He's got a website http://www.4sfed.com.au but its only to do with the 13b turbo thats now in the car.

There was a site that had a page on the build of the car http://www.fortunecity.com/silverstone/toyota/80/index.html (aka: "welcome to daytona's home page") but for some reason or another the site has been deleted.

I found mentions of Tim Frost's car on the Net, and that's what gave me the idea originally. It turns out a fellow RollaClub member also used to have a supercharged 2T-GEU in their car, so they are going to try and provide me with some info. :lolcry:

hmmm i think getting a 4agze ecu to run on a 2t will be a pita

and a large comprimise.

 

2t is AFM isnt it?

they are a lot more adaptible to boost.

some bigger injectors maybe all you need

forget remapping toyota ecus

they are made in such a way you can't, you need to rebuild the insides

 

ac delco ecu is a possibility, as they are well cracked

 

 

now, you really do want a fully tunable ecu i think

8 or so psi and stock compression....

Not sure whether 2T-GEU if AFM or MAP - I do think it's AFM though.

 

For bigger injectors I was planning on using my current 4A-GZE 365cc ones, and upgrading the 4A-GZE to the 7M-GTE 440cc ones I've got waiting to go on.

 

Apparently Tim Frost had his 2T-GEU ECU remapped, so could it be that the 2T-GEU ECU (being such an early Toyota ECU) could be remappable???

 

Compression on the 13T is 8.5:1 standard (according to the Kalalahti site), so I don't know what this would change to with the 2T-GEU head, but it will apparently go up a little bit due to the smaller combustion chamber volume. I'm thinking I might play it safe and get a thick-ish metal head gasket. I've found them as much as 3mm thick, so I can get my engine builder to work out the correct thickness for my desired boost level. I will probably get a 165mm 4A-GZE crank pulley so I can run as much as about 12-13psi of boost. It depends on the diameter of the SC12 I've acquired. I also need to reassemble the SC12 as it's currently in pieces.

in pieces? why?

make SURE it hasnt got shagged bearings.....

It looks pretty good, but as it was a freebie I'm not really going to complain if there is an issue. :evil: