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1986 celica


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Howdy everyone. I got a 1986 celica and plan on turning it into a quick little hillclimb car. I'm on NW coast Tasmania. I think she's sexy. It's in very neat condition inside and out.

IMG_20170613_172007_800.jpg

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Welcome to the forum Leigh, Yes the always were a lovely looker and by your pic it still is...enjoy 

KAA

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  • 9 months later...

Sorry for taking so long to reply.

@ Trent. I would love to build a quick car with turbo but staying standard with the 3sge. Its the 86 imported and from what I read ( Yamahas input into head and other changes ) it should be quick enough for me to play with. Would like to know more about the piece between intake manifold and head. 

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Do a Google search for TVIS(Toyota Variable Intake System).

Basically alters the air speed into the intake ports and increases low-end torque, when shut. When open, it increases air speed along with top end power.

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16 hours ago, Leroy86 said:

Sorry for taking so long to reply.

@ Trent. I would love to build a quick car with turbo but staying standard with the 3sge. Its the 86 imported and from what I read ( Yamahas input into head and other changes ) it should be quick enough for me to play with. Would like to know more about the piece between intake manifold and head. 

The first-gen 3SGE is a nice smooth gem of a motor but unfortunately it's no powerhouse - you're looking at barely any more power than a smallport 4AGE (although at lower revs and with more torque).  Later-generation 3Ss have much more power (up to 40% in some cases) are essentially drop-in replacements (with some wiring mods of course).

As @trentmeyer23 said, the sandwich plate between the manifold and the head is a variable intake butterfly system, similar to the one on the early bigport 4AGEs.  Basically there are two intake runners for each cylinder rather than the traditional one, but every second one is blocked off by a butterfly valve at low rpm.  This forces all the air to go through one small runner per cylinder, which increases port velocity and improves low-down torque.  At higher rpm/throttle openings the valves open up to allow extra airflow to each cylinder which improves top-end power.

Oh, and just about every Toyota with a -G head has had Yamaha's involvement, from the 3M in the 1967 2000GT to the 4AGE/3SGE in the 80s/90s and through to the 2ZZGE in the 00s and the 1LRGUE/2URGSE Lexus engines in the '10s.

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