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| G13 engine sizes https://auszookers.com/forum/viewtopic.php?f=5&t=52868 |
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| Author: | suzukitas [ Mon Jul 25, 2016 11:12 pm ] |
| Post subject: | G13 engine sizes |
Was just throwing a g13 engine back in a sj80 today and noticed the size difference on g13a (1324cm3) g13b(1298cm3). I sure someone will answer this easy as to where the difference lies, just curious that's all. |
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| Author: | fordem [ Tue Jul 26, 2016 4:09 am ] |
| Post subject: | Re: G13 engine sizes |
The stroke is longer, the bore is the same. |
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| Author: | suzukitas [ Tue Jul 26, 2016 8:39 am ] |
| Post subject: | Re: G13 engine sizes |
So just the crank is a little different, block height remains same? |
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| Author: | fordem [ Tue Jul 26, 2016 10:47 am ] |
| Post subject: | Re: G13 engine sizes |
Let me rephrase that - the difference in capacity comes from a longer stroke, and whilst I'm not 100% certain, I believe the block crank & rods are different. |
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| Author: | alien [ Tue Jul 26, 2016 11:55 am ] |
| Post subject: | Re: G13 engine sizes |
Fun fact - it was changed so the swift could race in rally (under 1300cc). |
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| Author: | MrRocky [ Tue Jul 26, 2016 3:14 pm ] |
| Post subject: | Re: G13 engine sizes |
Some may say its not noticeable but i prefer the 1298cc donks Just have a nicer feel through the revs |
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| Author: | suzukitas [ Tue Jul 26, 2016 6:41 pm ] |
| Post subject: | Re: G13 engine sizes |
block is bigger? by how much? I used the g13b and it had square timing belt and I changed to round? problem? |
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| Author: | suzukitas [ Tue Jul 26, 2016 7:00 pm ] |
| Post subject: | Re: G13 engine sizes |
Just measured block, they are same. |
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| Author: | fordem [ Wed Jul 27, 2016 1:05 am ] |
| Post subject: | Re: G13 engine sizes |
suzukitas wrote: I used the g13b and it had square timing belt and I changed to round? problem? The belt profile needs to match the pulleys - square tooth belt with square tooth pulleys, no problem - round tooth belt with round tooth pulleys, no problem - round tooth belt with square tooth pulley (or vice versa), PROBLEM. You'll find many such minor differences, some of the crank pulleys are four hole, some are five... |
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| Author: | henno [ Wed Jul 27, 2016 7:05 am ] |
| Post subject: | Re: G13 engine sizes |
alien wrote: Fun fact - it was changed so the swift could race in rally (under 1300cc). Holden famously did the same thing for Group A homologation: the 308 becoming 304ci to be under the 5L capacity limit. |
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