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Half-bridge+turbo?

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Old 06-22-05, 08:26 AM
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3-Rotor madness

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Half-bridge+turbo?

Is this a good combination?
How is driveability and engine life affected (s4-13BT)
More HP then a streetport?

I don't care about fuel economy or a LITTLE driveability problems but this will be my daily driver and i want it to pass smog tests (live in sweden thou)

tell me everything there is to know about this combination...info, movies "gossip" etc!
Old 06-22-05, 09:23 AM
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Engine, Not Motor

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Originally Posted by rx7jocke
Is this a good combination?
Yes.

How is driveability and engine life affected (s4-13BT)
Driveability is worse at lower throttles (surging), but engine life should be unaffected if the ports are cut correctly as to not intrude on the side seals.

More HP then a streetport?
Yes, much.

my daily driver and i want it to pass smog tests (live in sweden thou)
Good luck! You would need some seriously lax tests to pass due to the large amount of overlap generated by a bridge.
Old 06-22-05, 04:58 PM
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I have one....peak power doesnt seem much more, but good lord did it spool my 60-1 fast.
Old 06-22-05, 05:29 PM
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I have a theory about passing smog with a half bridgeport.

Aux port sleeves are used to have the aux ports closed at low rpms, so in a sense they are blocked off yes? Well, why cant you make something that blocks off the secondary ports completely for half bridge people for when emissions comes? Either a plate or something, whatever works, and run off the primaries only to and from the test. No more bridgeport to worry about! Obviously power is going to SUCK and you're going to have to retune for those rpms to just get there and not have way too much fuel during the test, but in theory it should work.
Old 06-22-05, 07:34 PM
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If I had to worry about emissions I guess I would try it.




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