Single Turbo RX-7's Questions about all aspects of single turbo setups.

"Best" Exhaust Manifold for FD Single Turbo?

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Old 10-22-24 | 07:26 AM
  #101  
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Arrogant Wankeler
 
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From: Newcastle NSW Australia
Originally Posted by rx72c
We do. It goes straight out the drivers side of the car, probably can't see in the video.

To your first question, when you say boost threshold, what do you mean by that?
lets when you do a pull from off idle (or load up on road in the sane gear/conditions) when it achieves half a bar or whatever you consider "on boost", not transient snap at high rpm but effective full throttle from low rpm, what rpm does it come on vs a turblown or fabricated divided manifold with similar sized turbo.

People are curious about the net effect of additional volume/surface area and potential valve face bypass to usable rev range.

I was hoping to trim a divider right to the face of a 60mm gate on a fabricated manifold myself down the track if it's doable.
Old 10-22-24 | 03:28 PM
  #102  
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Originally Posted by Slides
lets when you do a pull from off idle (or load up on road in the sane gear/conditions) when it achieves half a bar or whatever you consider "on boost", not transient snap at high rpm but effective full throttle from low rpm, what rpm does it come on vs a turblown or fabricated divided manifold with similar sized turbo.

People are curious about the net effect of additional volume/surface area and potential valve face bypass to usable rev range.

I was hoping to trim a divider right to the face of a 60mm gate on a fabricated manifold myself down the track if it's doable.
Yes it very much behaves like a twin scroll manifold which provides smooth transient boost response, it's not snappy at all like it was previously with the old exhaust manifold which did not have the divided wastegate.

As far as doing a direct comparison to a Turblown manifold it's too early for that. I would say that information will become more apparent over the next few months once I have more alike combinations to compare.
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