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Location:
Adelaide
Registered:
January 2004
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tough 18R-G's
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Tue, 20 January 2004 02:05
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I'm looking at building what I would call a 'mild' 18R-G  and I'm wondering how thirsy it would be on the juice compared to my 18R-C. The cars driven daily so I don't want be paying s**t loads for fuel.
I'm thinking of getting an 82250 efi head (or the pollution control one with big valves and ports), porting the head, 288/272 cams, and higher comp. pistons (I know, i'll need premium!). I may leave out the new pistons for financial reason (yes, I'm a poor uni student).
I'd be interested to hear from other 18R-G drivers to hear what sort of millage they get.
Any help would be much appreciated.
Lachie
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Location:
Hobart
Registered:
June 2002
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Re: tough 18R-G's
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Tue, 20 January 2004 04:30
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well my stock 18rg gets better millage than my 18rc ever did. Hopefully that will improve again once i convert to EFI.
cheers
Chris
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Location:
Brisbane
Registered:
May 2002
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Re: tough 18R-G's
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Tue, 20 January 2004 04:37
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A setup like that will be pretty heavy on fuel, especially if you're running carbies! Toyota never designed these engines with fuel economy in mind.
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Location:
Adelaide
Registered:
September 2003
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Re: tough 18R-G's
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Tue, 20 January 2004 04:53
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my 18rg running stock carbies and some lumpy cams....
I go through about half a tank of premium in three days...
but then you can blame my right foot for that 
In reality I get about 250 - 300k's from just over half a tank
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Location:
Adelaide
Registered:
January 2004
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Re: tough 18R-G's
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Tue, 20 January 2004 05:49
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Norbie,
I wanna run efi, but I've never seen a complete engine for sale in South Oz. and i'd rather buy a complete engine that I know runs. Is it that much better with efi? I know they were never designed for fuel economy, why would you need to with the price of fuel in the seventies?
ra23mad,
Are you sure thats the right figure for your economy? And is that city or highwawy driving? I know premium gets better millage, but I get about 400-430kms out of a full tank of unleaded with my 18R-C. Maybe thats my right foot as well...
You know what sort of power increase you get with just the lumpy cams?
Thanks for your help guys, might just save up for a 1G....
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Location:
Northwestern Sydney
Registered:
August 2002
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Re: tough 18R-G's
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Tue, 20 January 2004 06:28
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If your getting 400-430 k's out of an 18r-c your doing well. my worked 18R-GEU was getting that City driving.
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Location:
Brisbane
Registered:
August 2003
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Re: tough 18R-G's
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Tue, 20 January 2004 08:12
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yeah im with lambolica on this one my 18R-GEU is only gettin 350 to 400 city driving but thats with alot of right foot and running optimax but to tell the truth it is more fuel eff than my old 18r-c
Cheers
Matty D
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Location:
Brisbane
Registered:
May 2002
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Re: tough 18R-G's
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Tue, 20 January 2004 08:43
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In my experience EFI is much much better when it comes to fuel economy and drivability. Definitely well worth the effort for a street car.
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Location:
Rocklea qld
Registered:
February 2003
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Re: tough 18R-G's
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Tue, 20 January 2004 10:05
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arent the 88250 heads the carbie heads and the 88270 head is the efi head. someone correct me if im wrong. i had a 18rgu with lumpy came and iu was gettin about 430km to a tank and i wasnt exactly drivin miss daisy in it either. Also who are you gonna get to build it for ya.
Does anyone have any experience with wiring up efi as i need alot of help with mine and im in the brissy area. Maybe when its in someone can give me a hand.
Anyway good luck with the build and its also pretty easy to make a mild 18rg from what i believe.
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Location:
brisbane
Registered:
August 2003
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Re: tough 18R-G's
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Fri, 23 January 2004 13:57
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My 18rg with twin solex gets about 300 to 350out of a 55l tank.
Poeple100, you should try and get in touch with Anthony Kellum, he's pretty reputable with EFI.
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Location:
Adelaide
Registered:
June 2003
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Re: tough 18R-G's
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Sun, 25 January 2004 03:53
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Yeah, the EFI head was the 88270, the 88250 head had different castings, not sure about the valves in that era.
from what I've been told recently, playing with cams in an efi engine running AFM system tends to screw things up, so you'd probably have either go MAP sensor system or after market computer or both.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: tough 18R-G's
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Sun, 25 January 2004 04:58
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i know im doing both 
that is when i get back into the country
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