2 new problems....

cre · 06-26-2007, 01:27 AM

The 1G was fairly uncommon... an underdog of the MKIII world. They're definitely a rev happy engine with decent (but not phenominal) potential with some upgrading. I don't think that engine even made it to Europe. There has been a lot of speculation about how much power they're capable of, but the few people who've tried building it here in North America have all bailed on it. Parts aren't easy to source, they're expensive to ship in and the 1JZ and 2JZ offer greater gains from the same amount of work.

While a BHG is not big concern on the 1JZ, 2JZ and 1G the potential always exists.

Oil leaks on the top (upper half) of the engine are most likely coming from loose valve covers, dried and shrunken seals (such as the one on the CPS or dist. or cam/valve cover seals), or cracked hoses.

Japanese supra tt · 06-26-2007, 01:52 AM

yeah, the 1G has come kick to it, and it definatly gets the job done.
lets put it this way, the car can clutch kick in 3rd.
the twin turbos have some lag of course but its not anything thats too bad.
alrighty, when i go to the lift again, looks like im draining my radiator, installing foglights & wiring, checking for cracked/dried hoses, and checking torq on valve cover.

oh yeah, and yeah i relize most ppl have 7Ms or 1j's. its all good, you guys help out more than enough haha.

cre · 06-26-2007, 03:58 AM

Wow, I just noticed that the 1G uses a VAF (Vane Air Flow) meter.... like the 7M-GE N/As. What a horrible restriction to put on a turbo car. I wonder how much of an increase that engine would see from just converting to a MAP setup... even without tuning there would probably be a decent gain. I'm stunned that Toyota would use that in that setup.

Japanese supra tt · 06-26-2007, 01:46 PM

yeah ive noticed that too. need to get all my shit running like it should...or close to it before i go and start swapping parts for upgrades...
(oil leak, headlight relay, plug wires, foglights, all need to be installed/replaced)

im assuming you guys would reccomend MSD 8.5mm plug wires?
seems like the best out there.

opinions?

ohh yeah, ALSO IMPORTANT: my oil pressure is sky high, it reads around 6 to 8 sometimes, on the stock gauge if im just cruizing at about 40 KPH and 2k rpms...
wierd.

IHateHacks · 06-27-2007, 01:10 AM

Yes MSD wires are the best you can buy for a MK3.

Look closer and you will see that the 1G shares another part with non-turbo 7M's, that would be a distributor. No DIS ignition system there. That hinders performace likewise, no wonder the engine was only rated at 210hp with twin turbos

So I would guess that you would use MSD wires for a non-turbo MK3. Because "turbo" 7M wires will be too short because the coils sit directly on top of the spark plugs and you need them to reach over to the distributor.

6 to 8 what? Bar? If its bar, then holy shit you have problems there. Thats like over 80psi. I don't know much about 1G's, but I know enough to know your oil pressure is too high.

cre · 06-27-2007, 02:12 AM

*cough* Taylor */cough*

The down side is you have to build them yourself.

Yeah, 6 to 8 what? Kg/cm^2?

Japanese supra tt · 06-27-2007, 02:19 AM

6-8 kg/cm^2

thats what it says on the gauge.

sometimes it will be around 4 like its suppose to, its wierd.

06-26-2007, 01:52 AM	#2
Japanese supra tt Intake Join Date: Jun 2007 Location: tokyo Posts: 43	yeah, the 1G has come kick to it, and it definatly gets the job done. lets put it this way, the car can clutch kick in 3rd. the twin turbos have some lag of course but its not anything thats too bad. alrighty, when i go to the lift again, looks like im draining my radiator, installing foglights & wiring, checking for cracked/dried hoses, and checking torq on valve cover. oh yeah, and yeah i relize most ppl have 7Ms or 1j's. its all good, you guys help out more than enough haha. Last edited by Japanese supra tt; 06-26-2007 at 01:56 AM.

06-26-2007, 01:46 PM	#4
Japanese supra tt Intake Join Date: Jun 2007 Location: tokyo Posts: 43	yeah ive noticed that too. need to get all my shit running like it should...or close to it before i go and start swapping parts for upgrades... (oil leak, headlight relay, plug wires, foglights, all need to be installed/replaced) im assuming you guys would reccomend MSD 8.5mm plug wires? seems like the best out there. opinions? ohh yeah, ALSO IMPORTANT: my oil pressure is sky high, it reads around 6 to 8 sometimes, on the stock gauge if im just cruizing at about 40 KPH and 2k rpms... wierd. Last edited by Japanese supra tt; 06-26-2007 at 01:56 PM.

06-27-2007, 01:10 AM	#5
IHateHacks 20psi boost Join Date: May 2006 Location: New Haven/Hamden Posts: 793	Yes MSD wires are the best you can buy for a MK3. Look closer and you will see that the 1G shares another part with non-turbo 7M's, that would be a distributor. No DIS ignition system there. That hinders performace likewise, no wonder the engine was only rated at 210hp with twin turbos So I would guess that you would use MSD wires for a non-turbo MK3. Because "turbo" 7M wires will be too short because the coils sit directly on top of the spark plugs and you need them to reach over to the distributor. 6 to 8 what? Bar? If its bar, then holy shit you have problems there. Thats like over 80psi. I don't know much about 1G's, but I know enough to know your oil pressure is too high. Last edited by IHateHacks; 06-27-2007 at 01:14 AM.

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06-26-2007, 01:27 AM	#1
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	The 1G was fairly uncommon... an underdog of the MKIII world. They're definitely a rev happy engine with decent (but not phenominal) potential with some upgrading. I don't think that engine even made it to Europe. There has been a lot of speculation about how much power they're capable of, but the few people who've tried building it here in North America have all bailed on it. Parts aren't easy to source, they're expensive to ship in and the 1JZ and 2JZ offer greater gains from the same amount of work. While a BHG is not big concern on the 1JZ, 2JZ and 1G the potential always exists. Oil leaks on the top (upper half) of the engine are most likely coming from loose valve covers, dried and shrunken seals (such as the one on the CPS or dist. or cam/valve cover seals), or cracked hoses.

06-26-2007, 03:58 AM	#3
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	Wow, I just noticed that the 1G uses a VAF (Vane Air Flow) meter.... like the 7M-GE N/As. What a horrible restriction to put on a turbo car. I wonder how much of an increase that engine would see from just converting to a MAP setup... even without tuning there would probably be a decent gain. I'm stunned that Toyota would use that in that setup.

06-27-2007, 02:12 AM	#6
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	cough Taylor /cough The down side is you have to build them yourself. Yeah, 6 to 8 what? Kg/cm^2?

06-27-2007, 02:19 AM	#7
Japanese supra tt Intake Join Date: Jun 2007 Location: tokyo Posts: 43	6-8 kg/cm^2 thats what it says on the gauge. sometimes it will be around 4 like its suppose to, its wierd.