Stock S1 Throttle Body

[66yostagea]

Getting ready to fit the FF plenum, still!

Anyone know the diameter of a stock T/B where it fits onto the standard plenum?

The reason I ask is that Nissan have supplied a metal gasket with a 65mm inside diameter. The JJ plenum has an id of 76m

which to my mind is the correct size for the gasket.

[KiwiRS4T]

Just had a look at mine without taking it off ... the bolts are at about 77mm centres which would suggest that the ID is probably correct at 65mm. I'm going down to the workshop this afternoon and I'll see if I can find one lying around as well as a n/a one to measure.

[darrinspencer]

Sorry Hugh, forgot to reply to your PM

The Greddy plenums and the copy ones are made for a 80mm TB and the Q45 one bolts straight on.

To use your R33 65mm TB you need to get a adaptor that fits in between the plenum inlet and TB.

Greddy make them and you can get a copy as well

You can get the copy one from autobarn, comes with all the bolts etc for $80 I think

So you will need to use the 65mm gasket plus get the 80mm Q45 gasket or use gasket glue instead.

You can see the adaptor in the pic attached.

[66yostagea]

Sorry Hugh, forgot to reply to your PM

The Greddy plenums and the copy ones are made for a 80mm TB and the Q45 one bolts straight on.

To use your R33 65mm TB you need to get a adaptor that fits in between the plenum inlet and TB.

Greddy make them and you can get a copy as well

You can get the copy one from autobarn, comes with all the bolts etc for $80 I think

So you will need to use the 65mm gasket plus get the 80mm Q45 gasket or use gasket glue instead.

You can see the adaptor in the pic attached.

Thanks for that Darrin. If I had been smarter I would have looked at the copy of ix9's "how to". First page, get an adapter.

[Duncan]

that explains my confusion too....mine definately has an adapter on it too....