| Author | Topic |
|---|
Location:
Ipswich
Registered:
October 2003
|
|
18rgu efi questions
|
Mon, 27 October 2003 04:43
|
 |
|
I'm just wondering about converting the twin carbs to the efi setup, but have a couple questions first. The engine i want to convert has some kind of aftermarket cams in it, and was wondering if i am only going to bolt in factory efi gear, will this adversely affect the tuning? Also, what does an entire setup for the conversion generally go for, i was just after the most basic setup I could have, that included everything to just bolt in and turn the key.
|
|
|
Registered:
June 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 06:06
|
|
|
If using the ljet system you should have no problems with the cam. You will have to tune the efi system a little to get the correct mixtures. The cheapest way to do it would be to get a complete manifold ~$150 - $250 a 22re efi system or early 2se $100 - $150 and a second hand efi pump from a camira (same as VL by the way) for $40.
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 07:10
|
|
Yeah, the L-Jet system is pretty flexible, so as long as the cams aren't too wild you shouldn't have a problem. As mentioned you may need to tweak it a little, but that's easy to do.
|
|
|
Location:
Ipswich
Registered:
October 2003
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 11:25
|
|
|
So this system won't need o2 sensors or cat converters?
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 13:00
|
|
It has an O2 sensor, but will run fine without it - it will just use more fuel during cruise. Cat converters may be a legal requirement, but of course the engine will run OK without it.
|
|
|
Location:
Northwestern Sydney
Registered:
August 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 20:50
|
|
the cat would depend on the head wouldn't it??
the 18R-GEU is an unleaded engine from factory but I'm not sure about the R-G head?
I've done the R-G --> R-GEU swap but I had a busted R-GEU to start with.
You'll also need to get an igniter, ECU and loom.
the RA65 loom is a good place to start
I believe a 22r-e ECU works (as well as 5m-e)
and an ra65 igniter + coil.
And while your getting the parts get the intake pipe from the AFM as well as the air filter box. the box doesn't fit in an ra28. but I used the brakets to mount the AFM.
If you go to pick and pay less for the parts and take the loom out of a car, mark the wires before you cut them. Saves heaps of time down the track chasing wires.
Mine has the pin out for an O2 sensor but doesn't use it.
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 21:48
|
|
Using a cat depends on the fuel you're running, not the head. But most people don't bother with them if it's not a legal requirement.
|
|
|
Location:
Northwestern Sydney
Registered:
August 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 22:07
|
|
From what I've been told if using a R-G head which runs in leaded
you don't need a cat even Though I use Premium, whereas in an R-GEU head it is required to have a cat.
But I've never really had a straight answer from anyone regarding the requirments for engineering an 18R-GEU an RA28.
I get diffrent answers from different Engineers.
|
|
|
Registered:
June 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 22:19
|
|
|
If you run leaded fuel you will not use a cat but you will also not be able to use a O2 sensor as these clog up when using leaded fuels. Not sure about leaded replacement fuels if this is still the case?
|
|
|
Location:
Brisbane
Registered:
May 2002
|
|
Re: 18rgu efi questions
|
Mon, 27 October 2003 23:19
|
|
Lead hurts O2 sensors and cats, but lead is long gone so that's not an issue any more.
|
|
|
Location:
Ipswich
Registered:
October 2003
|
|
Re: 18rgu efi questions
|
Tue, 28 October 2003 01:39
|
|
|
I'm new to all these toyota engine and model codes, so is there any single car i should look for cheap (ie. being wrecked or sold damaged) that i could take everything i need off?
|
|
|
Location:
Northwestern Sydney
Registered:
August 2002
|
|
Re: 18rgu efi questions
|
Tue, 28 October 2003 01:48
|
|
The RA65 is your friend 
|
|
|
Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
|
|
Re: 18rgu efi questions
|
Tue, 28 October 2003 02:07
|
|
its a bit difficult to get an answer from petrol companies, but after some discussion with Shell, their opinion is that their 'lead replacement' petrol in [b]unsuitable[b/] for use with O2 sensors and cats. given their cagey response, it's hard to tell if that means it's okay or not, but i would err on the side of caution if they don't know or won't say.
altho lead replacement does not have lead, it does have other metal containing additives (i can't remember what they are atm :/ ) which will also foul O2's and cats..
Cya, Stewart
| roger wrote on Tue, 28 October 2003 09:19 |
If you run leaded fuel you will not use a cat but you will also not be able to use a O2 sensor as these clog up when using leaded fuels. Not sure about leaded replacement fuels if this is still the case?
|
|
|
|
