BIGGER THROTTLE BODY???
07 April 2003, 09:28 PM
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Enlarging from stock 60mm to 64mm will give you a 12.4% increased airflow. I've got both this and a port flowed and (per tract) matched inlet manifold to go on an ej25 I'm building.
Company in Oz did the work - A$300 for the thottle body alone from memory, but shipping and taxes to/from Oz gets steep
Richard
Company in Oz did the work - A$300 for the thottle body alone from memory, but shipping and taxes to/from Oz gets steep
Richard
07 April 2003, 10:22 PM
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Wow that is expensive, mine cost me $80.00NZD. Mine was done by a guy I know that does throttle body mods for many rally cars in New Zealand.
And what a massive difference to the performance.
And what a massive difference to the performance.
08 April 2003, 06:11 AM
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I was going to add that any machine shop should be able to do the same if you're only after the throttle body enlargement It's just a matter of boring out the original casting a little and making a new throttle plate.
Richard
It's just a matter of boring out the original casting a little and making a new throttle plate.Richard
03 April 2010, 08:10 PM
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Hi!
No one has then tryied to use a 64mm throttle body?
I'm building a 500bhp engine, and 60mm can be a little bit restrictive.
I don't except big gains, something like 5/10bhp, but it's better than nothing.
More will be still better (70mm will be the right size for 500bhp), better with a redline of more than 8000rpm, but at small throttle openings will be less precise...
The stock 60mm can be quite easily bored out to get a 64mm trottle plate.
No one has then tryied to use a 64mm throttle body?
I'm building a 500bhp engine, and 60mm can be a little bit restrictive.
I don't except big gains, something like 5/10bhp, but it's better than nothing.
More will be still better (70mm will be the right size for 500bhp), better with a redline of more than 8000rpm, but at small throttle openings will be less precise...
The stock 60mm can be quite easily bored out to get a 64mm trottle plate.
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