Quad Throttles What Are The Gains??

[Beechy]

Are Quad Throttle worth buying like r there big power gains??

[TODA AU]

Are Quad Throttle worth buying like r there big power gains??

If you've already got cams, compression, capacity, etc, then yes...
They are worth it.
But only when used with an airbox.

Gains are (B18C) 35hp @ 5500rpm & 10hp top end.
- Vs Itr manifold & 65mm throttle.
- No change to port shape.

Change the port shape together with clever portwork,
You can see an extra 50hp @ 6000 & 40hp top end.
But if you've got a low budget shitter, don't waste your time.

[Bludger]

^^

what he said.

[u mad?]

If you've already got cams, compression, capacity, etc, then yes...
They are worth it.
But only when used with an airbox.

Gains are (B18C) 35hp @ 5500rpm & 10hp top end.
- Vs Itr manifold & 65mm throttle.
- No change to port shape.

Change the port shape together with clever portwork,
You can see an extra 50hp @ 6000 & 40hp top end.
But if you've got a low budget shitter, don't waste your time.

Wow thats a massive increase in midrange!

[trism]

also good for throttle response.

[dougie_504]

If you've already got cams, compression, capacity, etc, then yes...
They are worth it.
But only when used with an airbox.

Gains are (B18C) 35hp @ 5500rpm & 10hp top end.
- Vs Itr manifold & 65mm throttle.
- No change to port shape.

Change the port shape together with clever portwork,
You can see an extra 50hp @ 6000 & 40hp top end.
But if you've got a low budget shitter, don't waste your time.

What kind of compression and capacity would you recommend?

[Bludger]

Capacity should not matter. But will amplify the effectiveness of your modifications.

Compression - as high as you can live with....

[pat88c]

What kind of compression and capacity would you recommend?

Would have to be anything over 12.5 to 1and higher compression

[u mad?]

Would have to be anything over 12.5 to 1and higher compression

surely you wouldn't need a comp that high to see the benefits of itb's?

[pat88c]

Stock B18c type r has about 11.1 to 1

What need to make power cams, compression, fuel and air flow
Most race cars run anything from 12.1 up 15.1 and some of turbo setup i seen running around at the drags run 12.5 to comp plus 20 psi boost

[trism]

yeah, but doesnt mean you ned massive comp ratio to get any benefit. Just means the higher it is, the more youll get out of it.

[Fraser]

There are some on ebay,they previously reached $600 plus and have since been relisted so obviously the owner didn't get what he wanted at that price.Can get them new for $900.Too much hassle without a cold air box but better than nothing.K series would be trick though.The thought went through my head as I have a K without an inlet manifold.