Universal 80Mm Throttle Body - Help

[Bruno P]

Hi I recently purchased Universal 80mm Throttle Body for an R33 Skyline which requires a TPS (throttle position sensor) from a series 1 which I also purchased.

The features of throttle are,

Features:

- 80mm intake (internal diameter)

- Open surface area of over 50cm

- Universal fittings will accept most TPS/throttle position sensors (BOLT-ON for the S1 R33 TPS)

- Adjustable butterfly - allows for a pre-set opening at idle (required for LS1)

- Butterfly is made of brass to insure long term durability under stress

- Made of precision CNC machined polished 6061-T6 aluminium

- 80mm suits 4 & 6 cylinder engines

INSTALLATION ~ Weld/mount 4 bolt back plate straight onto your plenum!

This is a BOLT-ON install for our R33 Plenum (GReddy style)

For starters the key way or half moon as such that is suppose to slide into the TPS is much too large and I suppose it will have to be filed down to fit as I can only slide it on a little then it tightens.

The second problem I noticed is that when Im trying to bolt on the tps I notice that the 2 bolt holes I am suppose to use to keep it in position might possibly be in the wrong position.

My understaning is that when the throttle is closed that the tps is wound fully one way, and when the throttle is fully open the tps position will be fully turned in the other position.

So if i was to install the tps with the 2 bolt holes provided on this universal throttle that would mean although my throttle is fully closed the tps would assume its half open due to the fact that key way/half moon and bolt positioning causes the tps to be set to the middle position on idle.

Has anyone bought one of these and experienced similar problem or am I a nut.

BP