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  #31  
Old 21-02-2017, 10:06 PM
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SeanDezart SeanDezart is offline
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Quote:
Originally Posted by chrisvega View Post
Factual on power outputs and what I said too about similar performance but let's hear your argument why you think otherwise.
Questions then :

Why would power have dropped from the 260Z quoted figure of '139-162*' ?

Why therefore should an L28Efi produce less power ?

How was it made to produce more in the second half of it's S30 life ?


And ‘performance’……the 280Zs were heavier and had longer diff ratios so will never perform like euro 240Zs unless the diff is swapped !

*Depending where you read, which year and which market-country destination
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  #32  
Old 21-02-2017, 10:23 PM
Albrecht Albrecht is offline
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Quote:
Originally Posted by chrisvega View Post
Not BS
Factual on power outputs and what I said too about similar performance but let's hear your argument why you think otherwise.
I think you're being led astray by the switchover between SAE Net and DIN ratings.
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  #33  
Old 21-02-2017, 10:26 PM
Albrecht Albrecht is offline
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Quote:
Originally Posted by chrisvega View Post
280Z US model only.
Parts no more difficult than any other Z and mechanically probably easier as drivetrain shared with ZX.
This way lies madness. What series are you talking about?

'Fairlady 280Z' was RHD, L28E-engined, S130-series Z.
'ZX' does not denote series.

Bad habits die hard.
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  #34  
Old 21-02-2017, 10:27 PM
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You've bin reading to many books you stupid boy,the 280s that I've driven seemed quicker than any standard 240/260 also the 260 is 2 mph faster than a 240,any fool knows that,
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  #35  
Old 21-02-2017, 10:41 PM
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SeanDezart SeanDezart is offline
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Originally Posted by status View Post
You've bin reading to many books you stupid boy,the 280s that I've driven seemed quicker than any standard 240/260 also the 260 is 2 mph faster than a 240,any fool knows that,
Probably was faster (you refer to top-end speed and not haw fast one got to one's top-end speed) which was down the a higher diff ratio - stick a 3.2 in a 240Z and it'll top out way above any 260Z/280Z !

If stated 260Z/280Zs 'seemed' quicker, that may du due to the slightly higher low-down torque that those larger engines produced.....but 'performance' is so much more than high top speeds and bigger-engine grunt.
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  #36  
Old 21-02-2017, 10:44 PM
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Put set of 240 carbs on a 260 and it will pass a. 240 after 50 mph fact,hence the 260 is faster and rarer ,so there big boy,who cares about diffs
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  #37  
Old 21-02-2017, 10:47 PM
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Quote:
Originally Posted by status View Post
Put set of 240 carbs on a 260 and it will pass a. 240 after 50 mph fact,hence the 260 is faster and rarer ,so there big boy,who cares about diffs

Dillon !

If tyou start swapping parts around, the game'll never stop.
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  #38  
Old 21-02-2017, 11:28 PM
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chrisvega chrisvega is online now
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Dillon not heard that since the school playground, very good.

Sean, I was comparing US 240 which got progressively slower btw with 280 and you throw in Euro spec 240, poetic licence. Rear diff on 280 is 3.55 closer to 3.90 of Euro spec and better than 3.345 from memory on US240.

The reason the L28E engine did not improve drastically over the L26 was compression ratio down to 8.3 from 8.8 so the engine could use lower octane unleaded fuel plus all the emission eqt, cat converter etc.

Road tests of the day put the standing quarter mile at about 17 secs for 240Z and 280Z in its first incarnation with 150bhp. 0-60 the 240Z quicker car by at least a second but 280Z with 170bhp got much closer.

Not often Albrecht is wrong but could be this time. Both 150 and 170 ratings are gross SAE as far as I am aware ( stand to be corrected ) and corresponds with what I have read and seen on chassis plates of 77 and 78 cars which gained the extra power from engine mods and improved emission compliance.

Should have said 280Z shared L28E of course and yes a bit sloppy for some with ZX
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  #39  
Old 21-02-2017, 11:35 PM
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Oh, and if you want best of all worlds but keeping the hybrid to factory offerings put an L28ET in an early 240Z and you have the ultimate machine which will do 0-60 in around 6 secs
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  #40  
Old 21-02-2017, 11:56 PM
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SeanDezart SeanDezart is offline
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Quote:
Originally Posted by chrisvega View Post
Oh, and if you want best of all worlds but keeping the hybrid to factory offerings put an L28ET in an early 240Z and you have the ultimate machine which will do 0-60 in around 6 secs
I'll better that with mine on n/a.

You're right about the DIN and SAE ratings - all of them on the engine bay plates are SAE.
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  #41  
Old 22-02-2017, 12:06 AM
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Quote:
Originally Posted by SeanDezart View Post
I'll better that with mine on na
Not on factory Hitachis you won't and I said factory hybrid

If you want to up the stakes, my L28ET 240Z has Megasquirt and non factory turbo which is around 5 secs 0-60 :smash
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  #42  
Old 22-02-2017, 12:14 AM
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SeanDezart SeanDezart is offline
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Quote:
Originally Posted by chrisvega View Post
Sean, I was comparing US 240 which got progressively slower btw with 280 and you throw in Euro spec 240, poetic licence. Rear diff on 280 is 3.55 closer to 3.90 of Euro spec and better than 3.345 from memory on US240.
Ah…but you never mentioned USA 240Zs in your text and you are selling the 280Z in Europe and comparing it therefore to contemporay cars here for sale or otherwise….don’t bend the goalposts or whatever the expression is  !

Quote:
Originally Posted by chrisvega View Post
The other point I would make about 280Z is that the later cars of 77 and 78 have more power than the earlier 75 and 76 cars ( 170bhp v 150bhp ) and performance much closer to the early 240Z.
The reason the L28E engine did not improve drastically over the L26 was compression ratio down to 8.3 from 8.8 so the engine could use lower octane unleaded fuel plus all the emission eqt, cat converter etc.

Road tests of the day put the standing quarter mile at about 17 secs for 240Z and 280Z in its first incarnation with 150bhp. 0-60 the 240Z quicker car by at least a second but 280Z with 170bhp got much closer.
My reading says that the (5spd) 240Z was around 16 sec for the ¼ mile, only equalled by the 2x seater 260Z (just so Status can go all gooey) and that the best a 280Z of any year could manage was a second slower.

Quote:
Originally Posted by chrisvega View Post
Both 150 and 170 ratings are gross SAE as far as I am aware ( stand to be corrected ) and corresponds with what I have read and seen on chassis plates of 77 and 78 cars which gained the extra power from engine mods and improved emission compliance.
Please show me a 1975/6 chassis plate and the SAE stated power.

Quote:
Originally Posted by chrisvega View Post
Should have said 280Z shared L28E of course and yes a bit sloppy for some with ZX
Except that the last 280ZX versions were beefed up and along with rack and pinion steering were very good cars on the road, they only lacked the turbo (only sold over here in Germany in 1983 I believe ?) to have ‘blown’ away the competition !
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Sean Dézart
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  #43  
Old 22-02-2017, 12:15 AM
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SeanDezart SeanDezart is offline
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Quote:
Originally Posted by chrisvega View Post
If you want to up the stakes, my L28ET 240Z has Megasquirt and non factory turbo which is around 5 secs 0-60 :smash
But I don't like your interior or the exterior colour....I'd rather have less dash and be more dashing.
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  #44  
Old 22-02-2017, 12:20 AM
franky franky is offline
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without not wanting to talk about speeds 240/260/280's....

Could it be that the 240z just feels more like a 'classic' given its less refined interior, lower weight etc.

Its not just about the numbers is it, its how they feel.
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  #45  
Old 22-02-2017, 12:31 AM
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SeanDezart SeanDezart is offline
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Originally Posted by franky View Post
Its not just about the numbers is it, its how they feel.
Wot I said 'performance' ! How they feel, perform.
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