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All Bore vs STroker. Which produces more TQ?

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Old Feb 4, 2003 | 02:48 PM
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Default All Bore vs STroker. Which produces more TQ?

Assuming same CI, and same cam. Are they equal?
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Old Feb 4, 2003 | 03:24 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

The stroker will give not neccessarily(sp) more tq (but in some cases will) but will give you better tq. It all bepends on what your running, but if tq is what you want the stroker has it. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
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Old Feb 4, 2003 | 04:05 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

hands down the stroker will give more torq than bore alone <img border="0" alt="[burn out]" title="" src="graemlins/gr_burnout.gif" /> <img border="0" alt="[punch]" title="" src="graemlins/gr_punch.gif" />
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Old Feb 4, 2003 | 04:37 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

The torque looked great in that dyno from the JPR 382 all bore that was posted up last month. It seems to have a nice long torque curve.

https://ls1tech.com/ubb/ultimatebb.p...=009300#000000
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Old Feb 4, 2003 | 05:50 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

A stroker vs bore of the same CI always gives better torque (everything else being equal).

The stroker crank makes more toque simply because it has a better mechanical advantage (ie the throw between the con rod and the crank).
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Old Feb 4, 2003 | 06:41 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

The all bore motors gonna make more hp and torque because it will have less frictional losses from the side loading of the pistons and the larger bore will allow the heads to flow better.
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Old Feb 4, 2003 | 07:54 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

With heads/cam ect. being equal, I believe an all bore and an stroker motor would be very close in max torque, engine size is really what determines max torque. The increased stroke is a mechanical advantage at low rpm, so a stroker's torque tends to peak low. As rpm increases the long stroke becomes a mechanical disadvantage, so an all bore motor with a shorter stroke will probably make the same torque, but it will peak higher
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Old Feb 4, 2003 | 08:01 PM
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Default Re: All Bore vs STroker. Which produces more TQ?

I'll let you guys know when I get my 388 big bore dynoed <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
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