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New conrods for hot street engine?

I am considering getting new conrods for my 2.7 litre hot street/trackday engine build (high comp pistons, 908-ish cams, 46 mm PMOs). Aiming for 250 BHP+ and the revlimit is going to be approx. 8000 rpm. Is it worthwhile replacing the stock conrods with a set of Carrillo 4340s for this application given that bearings and bolts are replaced, or is this an upgrade that falls into the nice to have category?

Thanks!
Old 11-05-2017, 11:16 AM
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For that rev range I would get a set of better rods, given that by the time you re size both ends, upgrade the bolts, magnaflux, shotpeen etc you are close to what a set of most race rods cost and know the age of the parts
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Old 11-05-2017, 11:39 AM
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Nice to have would be titanium.
Rod Info - Pauter
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Old 11-05-2017, 03:16 PM
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You can find pauter rods pretty reasonably priced. Titanium rods time out after a couple hundred track hours.
Old 11-05-2017, 04:07 PM
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I'll second the Pauter rod suggestion and add a concern about securing the flywheel at 8K with a 6-bolt crank.

Personally, I would keep the max revs around 7800 to help case longevity (if its Mg) and keep the flywheel on the crank.
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Old 11-05-2017, 06:24 PM
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Thanks everyone! Slightly confused about the Pauter vs. Carrillos though. I'm finding Carrillos at c. 1,200 USD whereas Pauters seem to be around 1,700 USD?

Last edited by RSSweden; 11-06-2017 at 07:50 AM..
Old 11-06-2017, 07:40 AM
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What port sizes?

Yes to Carrillos.
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Old 11-06-2017, 07:55 AM
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Quote:
Originally Posted by lvporschepilot View Post
What port sizes?

Yes to Carrillos.
Not sure. Need to check, but larger than stock which is 32 mm.
Old 11-06-2017, 08:05 AM
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