What's a 2270?, Displacement clarifications |
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What's a 2270?, Displacement clarifications |
McMark |
Apr 18 2018, 11:37 AM
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#1
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
This question comes up every once in awhile, and did again in another thread. Rather than replying there I figured I'd make a new thread.
The 2270 number comes from 96mm pistons and 78.4 as the stroke. I'm pretty sure this 78.4 BS came from building motors for a racing class (probably under 2.3l) where people were trying to get as close to the limit as possible (more power). But the reality is that most 2270 engines are actually just off-the-shelf 78 stroke cranks. So 2258 is a better general reference term, I'd say it's more representative of what the engine is. But it doesn't roll off the tongue. I've moved to simply referring to them as 2.3l engines. If you REALLY want to be accurate, the '2270' that I'm assembling right now had a crank 78.26 and a 96mm bore. So really it's a 2266... (IMG:style_emoticons/default/rolleyes.gif) So call it a 2270, a 2258, or a 2.3l -- they're all the same idea and none are really all that accurate. |
Mblizzard |
Apr 19 2018, 10:26 AM
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#2
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Advanced Member Group: Members Posts: 3,033 Joined: 28-January 13 From: Knoxville Tn Member No.: 15,438 Region Association: South East States |
Nice displacement calculator here based on bore and stroke.
Mine comes out at 2.368. can I round to a 3.0? |
914four |
Apr 22 2018, 09:50 AM
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#3
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Senior Member Group: Members Posts: 510 Joined: 4-March 07 From: Rainbow City, Alabama Member No.: 7,582 Region Association: South East States |
Nice displacement calculator here based on bore and stroke. Mine comes out at 2.368. can I round to a 3.0? When using this calculator and the information from the Type IV Store for their 2563-190 engine kit I get 2.549. (78mm Stroker Crankshaft Ct/Wt T1RJ 102mm Nickies™ Performance Billet Aluminum Cylinders) How do they get to 2563? With all of this information it seems this would be referred to as a 2.6L and possibly the ultimate Type IV engine for a very spirited daily driver. (IMG:style_emoticons/default/biggrin.gif) |
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