SC300 Plug Change Questions
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Lead Lap
Joined: Feb 2002
Posts: 530
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From: Florida
SC300 Plug Change Questions
I've got one of my techs doing the swap. I was curious a.) what do you torque the throttle body to when doing this ? Also do you guys normally replace the gasket for the intake manifold?
Bluegr*** Performance
Joined: Feb 2002
Posts: 1,532
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From: North Kentuckarolinay
I asked this a few months ago and never did get around to changing the plugs. I will wait until 1. i get a turbo kit or 2. I hit 120k miles. Anyways, the response was that you can reuse the gaskets. But I wouldn't, if I could find some nice copper ones somewhere (never did look). That is just me. As for the torque specs, I have to consult my manual and that is at home right now. I'll try and get them later.
Hey, class killer, Can you hook up a deal on a GE turbo kit?
Hey, class killer, Can you hook up a deal on a GE turbo kit?
Thread Starter
Lead Lap
Joined: Feb 2002
Posts: 530
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From: Florida
They've got it appart and now they have the fun idea of removing the EGR 
So it looks like I'll be putting on some EGR plates and seeing how that goes. The TB has a ton of buildup in it, pretty nasty. I should notice a nice gain from it as the plugs and wires where original, throttle body had a ton of carb buildup in it, and we're removing the EGR system. Not bad at all.
As for the GE turbo kit, not right now too busy with other things. Maybe in the future though I have a GE longblock laying around that I can't decide if I'm going to build it or just go with the full 2JZ transplant, either way it's gonna be next year.
So it looks like I'll be putting on some EGR plates and seeing how that goes. The TB has a ton of buildup in it, pretty nasty. I should notice a nice gain from it as the plugs and wires where original, throttle body had a ton of carb buildup in it, and we're removing the EGR system. Not bad at all.As for the GE turbo kit, not right now too busy with other things. Maybe in the future though
I have a GE longblock laying around that I can't decide if I'm going to build it or just go with the full 2JZ transplant, either way it's gonna be next year.
Lexus Test Driver
Joined: Mar 2001
Posts: 1,205
Likes: 1
From: Ohio
Also do you guys normally replace the gasket for the intake manifold?
Lexus Test Driver
Joined: Mar 2001
Posts: 1,205
Likes: 1
From: Ohio
Oh, just thumbing through my well worn manual...
The four bolts that hold the throttle body bracket--- 15lbs/ft
Most of the other like sized bolts on the throttlebody are also 15lbs/ft.
The four long throttlebody studs with the bi-hex? heads--- 15lbs/ft.---Thought it was a bi-hex, but I may have used a star bit.
Spark plugs are 13lbs/ft.
The four bolts that hold the throttle body bracket--- 15lbs/ft
Most of the other like sized bolts on the throttlebody are also 15lbs/ft.
The four long throttlebody studs with the bi-hex? heads--- 15lbs/ft.---Thought it was a bi-hex, but I may have used a star bit.
Spark plugs are 13lbs/ft.
Thread Starter
Lead Lap
Joined: Feb 2002
Posts: 530
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From: Florida
Your the man scott, I was already on the road when you posted but I still appriciate it. Forgot that the Supra manuals we have also list NA stuff so I was safe there. The EGR mod went well also. My car now feels a lot smoother although I think the tranny needs a little flush and the air filter and cap and rotor could also use a change. Gotta take care of my baby
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