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Registered:
December 2004
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Anybody know about the 1G-GTE????
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Sun, 05 December 2004 02:05
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hi people, I just bought (monday the week before last) a 1984 KE70 corolla with a couple of little mods, and we are looking for a bit of advice.
the engine is a 1G-GTE (2L straight 6) on straight gas, it has been converted to a single turbo suck through setup with no intercooler. the turbo is a VL turbo-style T03 with T04 compressor housings and wheels.
at the moment its running about 10-11psi boost and has an external wastegate (deltagate II if that means anything?) it goes pretty good 
it sits for a couple of days at a time at the moment as its not registered in QLD yet, so we try not to drive it.
we did the plugs the other day along with some other stuff and noticed it had about 2mm of oil sitting on top of the pistons...nice new oil that looks like it has just dripped down from somewhere, not caked on burnt stuff. it obviously blows a lot of smoke on startup but once its been driven for about 10 mins it pretty much stops...im of the opinion that the valve stem seals are cactus, or maybe the front turbo seal - is there any way i can test the car to tell the difference?
also, just some general info if anyone happens to know - what is the maximum reccomended engine speed for this motor? (assuming its stock internally) we have heard anywhere from 6000rpm to 7700...
and what sort of boost can they cope with? i know being straight gas its going to be a bit harder to know, but if anyone has any guestimates that would be tops - I was thinking 12psi and 7000rpm max - is that ok or a recipe for disaster?
any help would be very much appreciated, thanks!
I'll post pics of it later when I get the time!
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Location:
Melbourne
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 02:45
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Sounds to me that the head has not at all been preped for gas and the valve seats have been recessed, so when the car is sitting there or at idle the oil trickles down the valve stem and into the combustion chamber. Interesting that you mention this as its not the first 1g i seen or heard to be burning oil thats on straight gas. So maybe there is some logic to my madness. From the factory the 1g redlines at somewhat 7000rpm from memory, though i have reved mine harder than that and read that they have taken 9250rpm with a iternally stock motor.
As for what sort of boost levels that you could attian out of this setup well depends on your fuel system i suppose (whether you have 1 or 2 convertors ect) and would also be dependant on when your turbo runs out of puff. Then if you have a big fuel system and a decent turbo well then your limits will be stock plenum and runners.
Cheers Adam
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Location:
Brisbane
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 04:00
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The 1G is designed to run on unleaded fuel, so the valve seats don't need to be "prepped" for LPG. It's quite common for 1G's and other older import engines to have stuffed valve stem seals; this usually happens because they've been sitting in a warehouse for months or years and the seals dry out.
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Location:
Melbourne
Registered:
November 2004
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 04:15
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My mates 1g on straight gas did the exact same thing as your car. We were pretty sure the issue was in the head, but for $400 it was cheaper just to buy another motor than fix the buggered one. As for how much boost you can run, we had it on 23psi for a while, and boy did that thing move!!! So u can pretty much run as much boost as you want as long as it gets enough juice. And i think it would be a good idea for you to invest in an intercooler too.
Cheers
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Location:
myrrhee
Registered:
March 2004
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 04:38
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DON'T intercool this car unless the gas system is a blow through system and is placed after the cooler.
Gas cars have a tendency to backfire, and with an intercooler filled with an explosive gas/air mix, a minor backfire will become a major disaster!
Sounds like an awesome car mate.
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Registered:
December 2004
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 07:45
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yeah it's awesome.
yes it can't have an intercooler or BOV because the LPG mixes with the air before it even goes through the turbo so the BOV would be spewing out LPG into the engine bay 
as for the psi the turbo is pretty big so it shouldn't have problems running out of puff. I think the most i'd go is 12psi.
so new valve stem seals are the go? do you have to get them from jap wreckers? will they only have second hand ones? where can i get new ones from?
Thanks heaps!
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Location:
Brisbane
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 08:20
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You can get new seals from Toyota. They're not a re-useable item.
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Registered:
August 2002
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 08:25
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| Norbie wrote on Sun, 05 December 2004 19:20 |
You can get new seals from Toyota. They're not a re-useable item.
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Nor are they cheap!
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Registered:
December 2004
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Re: Anybody know about the 1G-GTE????
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Sun, 05 December 2004 08:38
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so can I get them from Toyota Australia even if it's an import engine?
so they are expensive hey?? and i need 24 of them... damn!
thanks for the help guys!
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Registered:
June 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 03:36
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i can get a full set (24) for about $36. if you are interested let me no
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Location:
south east - melbourne
Registered:
March 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 06:02
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how hard is it to change the valve stem seals mines doing the slight puff at start up as well
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 06:04
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full VRS kit with head gasket is about $290 so i dont know what you guys consider as expensive 
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Location:
newcastle
Registered:
May 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 10:26
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12psi is fine i run that in my car and it loves it and its got stock turbos
while we r talking 1g parts not that i mean to hijack but anyone no how much a timing belt kit is and new lifters are cause i got a real noisy 1 and where to get em from
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 13:32
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timing belt for me was $32 trade price and staff discount, genuine toyota too, i dont know about the lifters man, sorry 
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Location:
B risbane
Registered:
November 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 22:44
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Didn't think 1G'S had lifters. Mine dosen't, it runs overbucket shims they're not too hard to change. Dont rev the enging too hard if you have noisy tappets cause the shims can flick out and smash the buckets and do all sorts of damage to the valve train depending where the pieces go.
MR 1GGTE don't spose you could post up a part no for the timing belt could you. I need one to finish building my engine.
Cheers....
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I supported Toymods
Location:
Sutho/Hills NSW
Registered:
September 2002
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 22:55
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Timing Belt - 13568-88300
For parts use http://www.japancats.ru/toyota/
Translate with www.worldlingo.com and convert russian to english
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 23:10
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Timing belt is cheap insurance 
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Location:
B risbane
Registered:
November 2004
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Re: Anybody know about the 1G-GTE????
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Mon, 06 December 2004 23:18
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I've broken one on a 1G before and it didn't bend a valve. Don't know if i was lucky or they have plenty of piston/valve clearance. They are cheap insurance though, it sux changing one on the side of the road.
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Location:
Arthurs Creek, Victoria
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 00:43
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Yeah, Mines on straight gas, and I burnt the valves stems out. And yes, mine is bucket and shim. ANd yes, it is cheaper to buy a new motor and move all your bits over than it is to do it with the engine on it. Buy yourself another engine, get all the good bits on it as people have been saying and then put it on and GET IT TUNED ! (I am learning that the hard way now actually). Then, make sure there's plenty of spark, and sufficient fuel, and then you'll be right..
BUT
You should have an intercooler, but not on suck through. I have personally experienced many backfires, and they do BAD BAD things. I've blown all sorts of parts OFF the engine through back fires. Injectors, intercooler piping.. You name it.. Get a suck through setup with a gas research carbi. Much wiser, trust me..
Daniel.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 04:47
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| HyDrA wrote on Tue, 07 December 2004 07:10 |
Timing belt is cheap insurance
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Yeah, but not from a "ahh I broke it" sort of stance because of it being non-interference, more of a "shit, I have to change the damn thing". 
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 06:15
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Ahhh it's easy to change  Took us no time at all... then we found the engine had bad bearings
I've heard of people bending valves in non-interference engines... unlucky sods.
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 06:16
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Was it in the car when you changed it though?
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 06:27
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Yes, once, and no, a 2nd time.
Both times it wasnt hard... well, that pulley bolt is a shit!
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 08:32
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1GGTE non interference
sick 
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 08:33
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Aren't most toyota twin cam engines?
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 08:37
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I knew the 4A's are but i guess its one of those things you find out and cant just assume 
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 08:40
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Toyota like their reliable engines
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Thu, 09 December 2004 10:43
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1G reliability you cant fault it
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Location:
Tassie
Registered:
October 2003
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Re: Anybody know about the 1G-GTE????
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Fri, 10 December 2004 02:12
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didn't u go thru 3 1g's ?
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Registered:
December 2004
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I supported Toymods
Location:
Adelaide
Registered:
July 2004
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Re: Anybody know about the 1G-GTE????
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Fri, 10 December 2004 08:31
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can i have a link please?
if the thread is still available?
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Registered:
December 2003
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Re: Anybody know about the 1G-GTE????
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Sat, 11 December 2004 07:49
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Gas research suck thru no no , blow thru go go
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Location:
Ipswich
Registered:
October 2003
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Location:
myrrhee
Registered:
March 2004
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Re: Anybody know about the 1G-GTE????
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Fri, 31 December 2004 06:53
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I'm with Baldrocker, If you want to get serious power out of that engine, go for an intercooled blow through gas system.
Tho the car is so light it will fly in any case!
You can make a backfire pipe consisting of a stubby holder and a bit of pipe that fits neatly (slight streaching) in the stubby holder with some largeish holes (1 inch or so) in it that goes between the gas carby and turbo.
The idea is to release the pressure of a backfire and stop the full backfire pressure from damaging the gas system.
Have you run this car down a 1/4 mile yet? it would be pretty good!?
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