Personal Best Top Speed
#22
03-23-2012, 10:48 PM
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Bruce in North Dakota (03-24-2012)
#23
03-24-2012, 01:51 AM
Late to the party here, but a speedo indicated 230 km/h (which on my pocket calculator comes to 143mph).
It was a slightly downhill stretch of Autobahn between Konstanz and Singen, in Germany.
You could probably take off the 10% speedo error and there's no way it would do that on a level road....
Ironically i've driven faster in Australia than I have in Germany...
It was a slightly downhill stretch of Autobahn between Konstanz and Singen, in Germany.
You could probably take off the 10% speedo error and there's no way it would do that on a level road....
Ironically i've driven faster in Australia than I have in Germany...
#24
03-24-2012, 01:07 PM
03 X type 2.5
When I first got my Jag one day one a deserted straight highway traveling 60 mph I floored it and held it she downshifted growled (like a tiger) and when I chickened out she hadn't upshifed yet at 130mph and climbing fast. Things happen way to fast at 130 and I'll never do it again. 90 or110mph is nothing, just passing a car you can hit that BUT sustaining 130mph no freaking way, not on a normal roadway where if you hit a goose or dog or blow a tire it could be the end. Drive safe people!!! AND don't use up your nine lives.I have only got 5 left if I have counted correct?
#25
03-24-2012, 05:32 PM
Senior Member
USAFTbird Wrote:
"What has worked for me in the past, to reduce static speed RPMs, is to reduce intake and exhaust impedance to airflow. I do believe that the engine holds RPMs due to exhaust restriction (still a WAG), but since my down pipe to catalytic converter seems to be jacked, I am willing to experiment."
I don't have any blistering speed stories but regarding air flow in the 2.5L X stick-shifter, I have a 2" diameter 3rd cold air pick up, KN air filter, and Magna Flow mufflers on a lowered X type. I did these mods all together and noticed the engined had a much nicer hum at high rpms. 4000 rpms is pretty comfortable for this motor now. I don't go much over 55K even when hitting some of my favorite uphill turns around Tucson. We have some nicely paved roads that twist, rise and drop as they head west into the desert.
I think the OEM set up for the X is air starved, and out of breathe!
Also, the important thing about hitting high rpms is to have a good load on the motor. This AWD machine is what it is. With a few mods tho, it's a hot little ride.
"What has worked for me in the past, to reduce static speed RPMs, is to reduce intake and exhaust impedance to airflow. I do believe that the engine holds RPMs due to exhaust restriction (still a WAG), but since my down pipe to catalytic converter seems to be jacked, I am willing to experiment."
I don't have any blistering speed stories but regarding air flow in the 2.5L X stick-shifter, I have a 2" diameter 3rd cold air pick up, KN air filter, and Magna Flow mufflers on a lowered X type. I did these mods all together and noticed the engined had a much nicer hum at high rpms. 4000 rpms is pretty comfortable for this motor now. I don't go much over 55K even when hitting some of my favorite uphill turns around Tucson. We have some nicely paved roads that twist, rise and drop as they head west into the desert.
I think the OEM set up for the X is air starved, and out of breathe!
Also, the important thing about hitting high rpms is to have a good load on the motor. This AWD machine is what it is. With a few mods tho, it's a hot little ride.
#26
03-25-2012, 10:51 PM
Mileage
My Bank 2 #2 O2 sensor reading is N/A.It has a miss on cold start but clears quickly No codes for O2s. My mileage dropped from 28-31 highway to 27 and 21 in town, guess I need to check on a sensor. I get a P0300 (random miss) that clears but comes back. I think when I had a vac leak it toasted it.
Also working on a coolant leak, thought it was the pump but found it;s leaking from the thermostat plastic housing "o" ring.Got it torn down waiting to get parts Monday, hope that takes care of it.
Also working on a coolant leak, thought it was the pump but found it;s leaking from the thermostat plastic housing "o" ring.Got it torn down waiting to get parts Monday, hope that takes care of it.
#27
03-25-2012, 11:49 PM
Banned
To the best of my memory, which is only semi-reliable, I pushed my '04 VDP up to 130mph last year rolling through a mountain range nearby. It felt like I was piloting a spacecraft. It exuded confidence, made great power, and was sure-footed. That speed would be considered only semi-fast in Germany however, and in May of last year, pushed our rented MB wagon (diesel) much faster many different tiimes.
Last edited by BigCat3153; 03-25-2012 at 11:51 PM. Reason: can't type
#28
03-26-2012, 09:32 AM
#29
03-26-2012, 10:19 PM
coolant leak fixed
Replaced the thermostat/housing, flushed,refilled system,made and replaced water pump gasket and all is well. When I first took off under shield to get at thermostat it was broke in several spots( was supposed to be fixed at body shop) they just pieced it together. I spent some time repairing it so it looks original and stable. Next project is flush the power steering and replace B2O2 sensor,grease drive shaft support bearing.
#31
03-27-2012, 04:29 AM
Having being lucky to own 2 x types with all 3 petrol gas engines (2.1, uk only, and the 2.5 in my current x type later replaced with a 3.0 engine 
) i have maxed out all, on the same stretch of motorway, using the same 99 super unleaded octane rating, and got the same top speeds on all 3 engines. That was 135 mph on level ground. It maybe could of gone a little bit more, but engine was screaming and my junction was coming up! I think its the gearing on these boxes (manual transmission) only let the car do a certain speed. Why they never made a 6 speed box 4 the petrols i never know! But thats my experience, and the car felt welded to the floor and very stable. Loved every second of it Happy Days! Ryan.
) i have maxed out all, on the same stretch of motorway, using the same 99 super unleaded octane rating, and got the same top speeds on all 3 engines. That was 135 mph on level ground. It maybe could of gone a little bit more, but engine was screaming and my junction was coming up! I think its the gearing on these boxes (manual transmission) only let the car do a certain speed. Why they never made a 6 speed box 4 the petrols i never know! But thats my experience, and the car felt welded to the floor and very stable. Loved every second of it Happy Days! Ryan.
#33
03-31-2012, 12:26 AM
Senior Member
Join Date: Dec 2009
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No one has mentioned that speed that they noticed the car "float" for a moment.
It's that speed where the Jaguar X-type kind of "shifts dimensions", where it goes from being earth-bound to being close to a damned aeroplane.
Oh, the car settles down - if you don't get scared and just go ahead and 'punch through it'. The only thing missing at that point is the ring of cloud one experiences around the craft when you hit the sonic barrier.
The AWD X-Type never looses it's claws, never loses it's grip - but the "float" is what you feel that scares you and you back off. Every car has a "float" point. You have to make a decision to go faster or slower, the choice is yours - but you better make it quick because the car is just intirinsically unstable at that point.
My advice is to keep the pedal to the metal, go faster, not slower. If you are "intrinsically unstable" and start hitting those brakes at that 'break-away' speed, you may lose and never regain control.
DO NOT BE AFRAID OF THE X-TYPE AT HIGH SPEEDS.
As mentioned earlier in the thread, I believe: The most important thing when driving an X-Type at high speed is your choice in music.
(and the Blonde!)
hehehe. #IntrinsicallyUnstable
It's that speed where the Jaguar X-type kind of "shifts dimensions", where it goes from being earth-bound to being close to a damned aeroplane.
Oh, the car settles down - if you don't get scared and just go ahead and 'punch through it'. The only thing missing at that point is the ring of cloud one experiences around the craft when you hit the sonic barrier.
The AWD X-Type never looses it's claws, never loses it's grip - but the "float" is what you feel that scares you and you back off. Every car has a "float" point. You have to make a decision to go faster or slower, the choice is yours - but you better make it quick because the car is just intirinsically unstable at that point.
My advice is to keep the pedal to the metal, go faster, not slower. If you are "intrinsically unstable" and start hitting those brakes at that 'break-away' speed, you may lose and never regain control.
DO NOT BE AFRAID OF THE X-TYPE AT HIGH SPEEDS.
As mentioned earlier in the thread, I believe: The most important thing when driving an X-Type at high speed is your choice in music.
(and the Blonde!)
hehehe. #IntrinsicallyUnstable
Last edited by Bruce in North Dakota; 03-31-2012 at 02:58 AM.
#34
03-31-2012, 02:27 AM
GTR. 152. (293 kwatw).
Ducati. 160.
V12. 138. (had plenty more but a bit floaty?)
XJ40. Wouldn't try it. (262000 kilometres on the clock and runs just fine at the speed limits thank you and touch wood).
Subaru. Not really interested in top speed but it is quick off the mark (181 kwatw)
Sportwagon. Not interested at all.
kW at the wheels as opposed to 'at the engine'. In the case of the GTR it is in all wheel drive but mainly rear wheel drive as controlled by the ATTESA-ETS electronics. In the case of the Subaru it is constant all wheel drive.
As for the ducati its is 'holh'. (hang on like hell).
Ducati. 160.
V12. 138. (had plenty more but a bit floaty?)
XJ40. Wouldn't try it. (262000 kilometres on the clock and runs just fine at the speed limits thank you and touch wood).
Subaru. Not really interested in top speed but it is quick off the mark (181 kwatw)
Sportwagon. Not interested at all.
kW at the wheels as opposed to 'at the engine'. In the case of the GTR it is in all wheel drive but mainly rear wheel drive as controlled by the ATTESA-ETS electronics. In the case of the Subaru it is constant all wheel drive.
As for the ducati its is 'holh'. (hang on like hell).
Last edited by direng; 03-31-2012 at 03:05 AM.
#37
03-31-2012, 03:21 AM
No one has mentioned that speed that they noticed the car "float" for a moment.
It's that speed where the Jaguar X-type kind of "shifts dimensions", where it goes from being earth-bound to being close to a damned aeroplane.
Oh, the car settles down - if you don't get scared and just go ahead and 'punch through it'. The only thing missing at that point is the ring of cloud one experiences around the craft when you hit the sonic barrier.
The AWD X-Type never looses it's claws, never loses it's grip - but the "float" is what you feel that scares you and you back off. Every car has a "float" point. You have to make a decision to go faster or slower, the choice is yours - but you better make it quick because the car is just intirinsically unstable at that point.
My advice is to keep the pedal to the metal, go faster, not slower. If you are "intrinsically unstable" and start hitting those brakes at that 'break-away' speed, you may lose and never regain control.
DO NOT BE AFRAID OF THE X-TYPE AT HIGH SPEEDS.
As mentioned earlier in the thread, I believe: The most important thing when driving an X-Type at high speed is your choice in music.
(and the Blonde!)
hehehe. #IntrinsicallyUnstable
It's that speed where the Jaguar X-type kind of "shifts dimensions", where it goes from being earth-bound to being close to a damned aeroplane.
Oh, the car settles down - if you don't get scared and just go ahead and 'punch through it'. The only thing missing at that point is the ring of cloud one experiences around the craft when you hit the sonic barrier.
The AWD X-Type never looses it's claws, never loses it's grip - but the "float" is what you feel that scares you and you back off. Every car has a "float" point. You have to make a decision to go faster or slower, the choice is yours - but you better make it quick because the car is just intirinsically unstable at that point.
My advice is to keep the pedal to the metal, go faster, not slower. If you are "intrinsically unstable" and start hitting those brakes at that 'break-away' speed, you may lose and never regain control.
DO NOT BE AFRAID OF THE X-TYPE AT HIGH SPEEDS.
As mentioned earlier in the thread, I believe: The most important thing when driving an X-Type at high speed is your choice in music.
(and the Blonde!)
hehehe. #IntrinsicallyUnstable
Years ago my 5.3 XJ-S (1984) was very 'floaty' at around 110-120 but when you got to 140-150 it felt like it dropped about 50mm (2 inches for youse guys) and pinned itself to the road. I could feel the steering tighten.
Last edited by direng; 03-31-2012 at 03:28 AM.
#38
03-31-2012, 11:24 PM
I am the guy who started this thread never dreaming there would be so many interesting posts. Thank you.
I think my favorite so far is from the person in the rectangular hole in the middle of north america describing the "float" factor. I did indeed sense that and almost mentioned it in the original post as an analog to the sound barrier discussions of the Chuck Yeager era. But I thought people would laugh and make fun.
I also am confused by all the people who claim to have gone way faster than the rev limiter will allow. I don't suppose anyone would publish a bypass for that band-aid? Again, thank you all for making this a fun forum. --Tom
I think my favorite so far is from the person in the rectangular hole in the middle of north america describing the "float" factor. I did indeed sense that and almost mentioned it in the original post as an analog to the sound barrier discussions of the Chuck Yeager era. But I thought people would laugh and make fun.
I also am confused by all the people who claim to have gone way faster than the rev limiter will allow. I don't suppose anyone would publish a bypass for that band-aid? Again, thank you all for making this a fun forum. --Tom
#39
04-01-2012, 09:06 AM
Me - Swiss/Euro spec, 143mph downhill (speedo)
jagryan85 - UK spec, 135mph (speedo)
And the NA models;
squenix - NA spec, 135mph (speedo)
ufoz8mycow - NA spec, 132mph (GPS)
disguay - NA spec, 125mph, uphill! (speedo)
I don't doubt that the NA cars will actually go past 125mph, maybe +10%, the 155mph gentlemens agreement for limiters in Europe on BMWs, Mercs, Audis, Jags, etc. is often +10%.
The problem is finding a stretch of road long enough to do it.
They get to 115mph no problem, but squeezing out the last 10-20mph takes a long time...
Last edited by Cambo; 04-01-2012 at 09:21 AM.
