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  #11  
Old 11-27-2014, 10:41 AM
PDM075 PDM075 is offline
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hmmmmmmmm..............I do have 2 sets of ITB's (Hybusa and GSXR I think) that we had intake manifolds made up from Xcessive we were going to mate up to the Xcessive plenum manifold.............

Was for a high compression N/A build we were going to do - but both sets are kind of collecting dust atm.

Also some forged KAE pistons to make a high comp DE, with prepped stock rods and ARP's......



don (runs away again)
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  #12  
Old 11-28-2014, 12:29 PM
cdlong cdlong is offline
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So this has turned into more of a for sale/WTB thread and less of a 'this runner length is ideal' and 'ITBs add such and such power' thread. Can we steer it back to the latter?
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  #13  
Old 11-28-2014, 03:06 PM
KA240SX808 KA240SX808 is offline
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I really think you should try a Ported Stock Manifold and TB with the Cold Pipe Intake and N60.
I think you'll be pleased with the gains.

Are S13 240/248's allowed as "back dated"?
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  #14  
Old 11-28-2014, 03:29 PM
cdlong cdlong is offline
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Just a full manifold? How should I go about porting it? I think a stock manifold with lower runners/plenum might be the best bet. Port that too maybe?

Only with a complete s13 engine, which is part of the long term plan. I'm casually looking for one to rebuild and swap in and get some other boxes checked at the same time, the intake being discussed, cam gears, tuning, etc.

The only problem with that plan is I won't know what parts made what power.
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  #15  
Old 11-30-2014, 06:22 PM
KA240SX808 KA240SX808 is offline
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For the TB and Port on the Manifold that can be done by Max Bore and they can/will also make you a gasket for that.

Runners I would use a dremel and just Gasket Match.
To do the actual runners I've seen ppl use a flex hone and just run it up and down the runner unless you wanna take the time to actually port it out with a bit.

You can even go as far as having the Manifold and Plenum flanges milled to give you very slightly shorter runners, you'll probably get nor more than 1/2" max but that's whatever's really.

A rebuilt 13 KA will be your biggest power gain I'm sure your aware of.
Last I checked your allowed .5mm OS Pistons, you can tight shim the Cams for slightly more use of the cam.
And of course your allowed that 1" of ports to be ported/matched.
You can even use Altima Chrome top rings to slightly reduce friction if you please.
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