2.5 vs 3.0
#2
06-10-2008, 10:09 PM
RE: 2.5 vs 3.0
i have had both the 2.5 and the 3.0. The 3.0 is the way to go! The tanny is the same in both and one is not more reliable then the other. The 3.0 feels proper. the 2.5 is sluggish compared to the 3.0. not to forget the extra 30-50 horse power (can't remember the tru number) If i had drove the 3.0 before I got the 2.5... I would have never got the 2.5...
#4
06-11-2008, 09:55 PM
Senior Member
RE: 2.5 vs 3.0
I have owned both as well. The 2.5 makes 195 HP and the 3.0 has 227 HP. My 2.5 gave a max of 28 MPG highway, and, the 3.0 manages about 26. Obviously the 3.0 has much more suds, but, I liked the 2.5 as well. It never felt sluggish to me. I initially bought the 2.5 because, at the time, the 3.0 models were much more expensive - about $4K difference I believe.
Regards:
Oldengineer
Regards:
Oldengineer
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#6
06-12-2008, 10:20 AM
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06-12-2008, 12:59 PM
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06-12-2008, 05:42 PM
#13
06-12-2008, 10:10 PM
Senior Member
RE: 2.5 vs 3.0
JVEGAS - Pretty obvious, that, when Jag reduced the price of the 3.0 I jumped on one. Also - I ain't buying into the 227 HP rating for the 3.0. I have a 3.5 Liter Saturn Aura that's rated at 219 HP, and, the Jag is a least a full second faster to 60 than it is - even though the Jag is probabaly several hundred pounds heavier.
Regards:
Oldengineer
Regards:
Oldengineer
#15
06-13-2008, 10:43 PM
Senior Member
RE: 2.5 vs 3.0
Jvegas - The night wife and I went to the unveiling event for the new Jag model, I approached a Jag factory guy and asked him directly about the HP rating on the 3.0 in the X. He admitted it's rating was "very conservative". I suspect there's very little actual difference between the X and the 236 HP version of the 3.0 in the S Type. In addition, I've seen several dyno tests results for the 3.0 X posted on various forums over the years that indicate the engine actually puts out about 240 HP. Wonder if anybody on this forum ever put one on a dyno??
Regards:
Oldengineer
Regards:
Oldengineer
#16
06-13-2008, 11:21 PM
RE: 2.5 vs 3.0
Yeah I just test drove a 2.5 manual the other day. Seemed VERY sluggish. I didn't get a chance to test drive a 3.0L but hope it is much better than the 2.5.
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Last edited by KA3AX; 01-23-2011 at 10:25 AM.
#17
06-14-2008, 01:45 PM
RE: 2.5 vs 3.0
ORIGINAL: Oldengineer
Jvegas - The night wife and I went to the unveiling event for the new Jag model, I approached a Jag factory guy and asked him directly about the HP rating on the 3.0 in the X. He admitted it's rating was "very conservative". I suspect there's very little actual difference between the X and the 236 HP version of the 3.0 in the S Type. In addition, I've seen several dyno tests results for the 3.0 X posted on various forums over the years that indicate the engine actually puts out about 240 HP. Wonder if anybody on this forum ever put one on a dyno??
Regards:
Oldengineer
Jvegas - The night wife and I went to the unveiling event for the new Jag model, I approached a Jag factory guy and asked him directly about the HP rating on the 3.0 in the X. He admitted it's rating was "very conservative". I suspect there's very little actual difference between the X and the 236 HP version of the 3.0 in the S Type. In addition, I've seen several dyno tests results for the 3.0 X posted on various forums over the years that indicate the engine actually puts out about 240 HP. Wonder if anybody on this forum ever put one on a dyno??
Regards:
Oldengineer
Re the X type:-
Mines on a dyno on Youtube:-
http://www.youtube.com/watch?v=tIUvZZnANlU#
#18
06-14-2008, 09:37 PM
RE: 2.5 vs 3.0
[align=left]2.5 liter[/align][align=left]Gasoline[/align][align=left]2497 cm³[/align][align=left](152 in³)[/align][align=left]60° ‘Vee’[/align][align=left]6 Cylinder[/align][align=left]24 Valves[/align][align=left]244 Nm /[/align][align=left]180 lb ft[/align][align=left]at 3000 RPM[/align][align=left]194 BHP /[/align][align=left]145 kW / 197 PS[/align][align=left]at 6800 RPM[/align][align=left]241 Nm /[/align][align=left]178 lb ft[/align][align=left]at 3000 RPM[/align][align=left]192 BHP /[/align][align=left]143.5 kW / 196 PS[/align][align=left]at 6800 RPM[/align][align=left]10.30 : 1[/align][align=left]±[/align][align=left]0.35 : 1[/align][align=left]81.65 mm[/align][align=left](3.214 in)[/align][align=left]79.5 mm[/align][align=left](3.130 in)[/align][align=left]3.0 liter[/align][align=left]Gasoline[/align][align=left]2967 cm³[/align][align=left](181 in³)[/align][align=left]60° ‘Vee’[/align][align=left]6 Cylinder[/align][align=left]24 Valves[/align][align=left]284 Nm /[/align][align=left]210 lb ft[/align][align=left]at 3000 RPM[/align][align=left]231 BHP /[/align][align=left]172 kW / 234 PS[/align][align=left]at 6800 RPM[/align][align=left]279.3 Nm /[/align][align=left]206 lb ft[/align][align=left]at 3000 RPM[/align][align=left]227 BHP /[/align][align=left]169.4 kW / 231 PS[/align][align=left]at 6800 RPM[/align][align=left]10.5 : 1[/align][align=left]±[/align][align=left]0.5 : 1[/align][align=left]89.0 mm[/align][align=left](3.504 in)[/align][align=left]79.5 mm[/align](3.130 in)
#19
06-14-2008, 10:34 PM
Senior Member
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