Big Bore Throttle Body

[perfworks]

Just as side note...At relatively stock power levels on N/A, the throttle doesn't need to be messed with at all.

Burmeister played with his on his rally car and found no gains going larger and no found no real benefit from doing the little tricks to the stock one.

The SWC cars that are running at over 8000 rpm run 60mm or 65mm throttle bodies. But they also make around 250 whp.

So, take that with a grain of salt.

Perfworks: Did you run the 98 626 intake manifold on your car? I'm guessing it would bolt right on sicne the 626 ran a similar FS motor.

Actually i did not get a chance to bolt up the older manifold.
I was in the process of doing many experiemnts, but i was limited to what i could do concidering i had a partner that was stiffling the advancement of the car.
I then chose to continue to another vehicle.

BUT anyway that was my problem. The manifold should bolt up fine. Even the throttle body off the 2002 pro's bolt up to it!
the gaskets are the same for the head port. Very advantagous modification for those who are running F/I. Plus it would be great if someone would do what i was doing but never finished. Add 4 additional injectors to the manifold runners upstream that are activated only under boost thru a MAP sensor swith and piggyback.

 

[70]

Actually i did not get a chance to bolt up the older manifold.
I was in the process of doing many experiemnts, but i was limited to what i could do concidering i had a partner that was stiffling the advancement of the car.
I then chose to continue to another vehicle.

BUT anyway that was my problem. The manifold should bolt up fine. Even the throttle body off the 2002 pro's bolt up to it!
the gaskets are the same for the head port. Very advantagous modification for those who are running F/I. Plus it would be great if someone would do what i was doing but never finished. Add 4 additional injectors to the manifold runners upstream that are activated only under boost thru a MAP sensor swith and piggyback.

I might have to look into this. I was thinking of going with the FS-ZE intake manifold as it would produce a nice effect for forced induction also...

 

[AFaceInTheCrowd]

I might have to look into this. I was thinking of going with the FS-ZE intake manifold as it would produce a nice effect for forced induction also...

there is a problem with that. the intake side of the fs-ze is on the opposite side of the car. that means the throttle body will bolt to the passenger side of the car. this is because of the right hand drive as opposed to our left hand drive. you will have problems with that manifold. you will need custom piping and will possibly need to edit the fuel rail.

 

[twilightprotege]

afaceinthecroud - it should be the same side. i live in australia, we're right hand drive and the TB is on our passenger side - ie your drivers side. there should be no issues

 

[perfworks]

there is a problem with that. the intake side of the fs-ze is on the opposite side of the car. that means the throttle body will bolt to the passenger side of the car. this is because of the right hand drive as opposed to our left hand drive. you will have problems with that manifold. you will need custom piping and will possibly need to edit the fuel rail.

As long as the engine is mounted toward the passenger side and the tranny on the drivers side axle there is no problem. As far as i know the engines are all mouted the same. So this wont be a problem.

 

[70]

there is a problem with that. the intake side of the fs-ze is on the opposite side of the car. that means the throttle body will bolt to the passenger side of the car. this is because of the right hand drive as opposed to our left hand drive. you will have problems with that manifold. you will need custom piping and will possibly need to edit the fuel rail.

Other already adressed it. I might have to deal with the fuel lines, but that isn't an issue anyway.

Edwin has one on his car, I think he did a write up about it. It fits just fine, no issue excpet for running fuel lines.

 

[Installshield 2]

there is a problem with that. the intake side of the fs-ze is on the opposite side of the car. that means the throttle body will bolt to the passenger side of the car. this is because of the right hand drive as opposed to our left hand drive. you will have problems with that manifold. you will need custom piping and will possibly need to edit the fuel rail.

Not to beat this like a dead horse, but this is wrong...the others are correct...There is no room on the passenger side of engine bay for the manifolds intake ducting...The engine is not reversed in the engine bay either, which would require a different gearbox in order to not be going in reverse everywhere...Fuel and coolant lines to the TB adjustments may be needed, but that is it...If the engine was mounted reversed the intake manifold would be facing the front of the bay, in which there would be no room for the radiator or fans...

FWIW drivering side rarely contributes to which direction the engine rotates, and which direction the engine is mounted...

 

[Little Beavis]

Okay, now I'm confused. . .so is the larger TB good or bad for those of us with a turbo?

 

[AFaceInTheCrowd]

ok fine. i haven't been following the whole fs-ze conversion thing so i don't know s*** about it. the last time i discussed the intake manifold, everyone was confused about the whole tb thing.

 

[twilightprotege]

bevis - good and bad. for high end power, good. low end power, bad. this is very general, but is the case with any breathing mod...ie bigger cams, porting, intake manifold...etc...

personally, i'll be getting my stock TB bored out 3mm later on down the track, but it is plenty at the moment