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Location:
Canberra
Registered:
September 2002
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18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 02:20
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Okay, I've definitely decided I want EFI on my 18r (carby's too hard to start in winter)
Is it easy to convert an 18rg to EFI?
how much of a power advantage would there be over the 18r-geu if any?
anything else I should know?
Thanks in advance,
Trent
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Location:
Brisbane
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 02:25
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If you have all of the necessary parts, it's piss-easy. I did it a few years back, and back then I'd never touched an EFI car before.
You won't get any more peak power with EFI (unless your original carbies were stuffed and/or out of tune), but you will notice a much fatter torque curve from idle to redline - and that's just as important as peak power for a street-driven car. Fuel consumption is heaps better as well!
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Location:
Canberra
Registered:
September 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 06:45
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So that means that the 18r-g with EFI conversion out-performs an 18r-g with original carby setup?
So that means there is an awesome advantage of that over the 18rgeu. Brilliant
Do you reckon you could gimme a quick list of the neccessary parts? I think I have a fair idea, but I may have overlooked something.
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Location:
adelaide
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 07:19
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this is a bit off topic but, i was wondering since the 18r and 22r are of the same engine family, can you put the 18r-geu head on the 22re block?
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Location:
Canberra
Registered:
September 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 07:26
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I'm pretty sure that the answer to that is a big fat no.
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Location:
Canberra
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 07:36
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Thats correct 22r and 18r are different
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Location:
Brisbane
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 11:53
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You will need:
- inlet runners
- plenum
- throttle body
- fuel rail & injectors
- 18R-GEU thermostat housing (the 18R-G one fouls the plenum)
If you're using factory electronics, you will also need:
- ECU (duh)
- wiring harness
- airflow meter
You should also cut reliefs into the inlet ports for the injectors. Some people skip this step, but I'm sure Toyota put them there for a reason...
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Tue, 03 December 2002 23:51
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don't forget the surge tanks and EFI pumps 
sounds like fun! i would like to do this... but dammit... webers are just too cool! 
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Location:
Brisbane
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Wed, 04 December 2002 00:42
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Actually I'm running no surge tank and a single EFI pump from a Camira. I know it's not ideal, but I've yet to experience fuel surge - and believe me, my Celica gets fanged around corners quite often! 
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Location:
Sydney
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Wed, 04 December 2002 00:53
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just dont do it with virtually no petrol in the tank and you should be fine right?
it's all I'm doing for my 28 with a 1g in it till after the engineering
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Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Wed, 04 December 2002 01:01
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I've used the one fuel pump with my 2TGEU, never any surge, but never ran close to empty tank. The 1G would need more fuel though, I've been in a worked 2TG and a 3TG and they both surged on 1/8 tank, so you may be alright if you keep your tank above 1/2.
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Location:
Ipswich QLD
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Wed, 04 December 2002 03:38
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i think you left out
Dizzy
ignitor/ignition system
Just found that i needed these parts.
Kinda essential.
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Location:
Brisbane
Registered:
May 2002
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Re: 18r-geu vs. 18r-g + EFI conversion
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Wed, 04 December 2002 03:55
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His exisiting ignition system will work fine. It's not a bad idea to upgrade to an electronic dizzy, but it's not essential - I ran my 18R-GEU on an old 18R-C points dizzy for quite a while and that was OK.
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