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418 stroker... what should it make?

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Old 01-24-2014, 06:41 PM
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Default 418 stroker... what should it make?

callies compstar rot assembly wiesco pistons 4.08 bore 4 in stroke, 11 to 1 compession.... prc 247 heads with 67cc chamber..... .04 gasket. 247/250 624/595 114+4 cam, 1 3/4 headers with high flow cats....... mantic single clutch, ported fast 92, ls2 tb, 25% underdrive pulley 160 t stat..... what does everyone think? i hope its at least over 500rwhp, anything above that will be a bonus
Old 02-02-2014, 09:51 AM
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Not a big fan of cold thermostats...especially on an all aluminum engine.
Internal combustion engines create efficient work in the 188-192 range per
some guy named Warren Johnson. You have a great combo and it should
easily make 520 rwhp with I'd bet all of 475-480 ft./lbs.
Old 02-02-2014, 10:12 AM
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the themo keeps my coolant temp at right around 179-185... got the car back from the shop yest... car make 500rwhp with 468tq basically flat from 4000-5100... car hits peak hp at 6 and holds it til redline... i'm guessing my 1/34 headers with cats and slightly restrictive volant cai and stock ls2 tb are holding it back.... but the car is really scary at this power level so i'm satisfied.... def need to do a rearend swap with some bigger tires
Old 02-02-2014, 10:16 AM
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To me that's the real benefit to a stroker...the total power under the curve and not just the peak numbers. Congrats on the setup!
Old 02-02-2014, 10:24 AM
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thanks! yeh i was really surprised at how the tq comes in... i have 400tq at 3000 where i used to have that at 5000 with my other motor.... then from 3000-4000 it ramps up to 465+ and stays there... lower gears are useless.... i tried to roll of in 2nd just to see if i could use it at all and as soon as it hit 4000 it broke loose.... def need bigger tires



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