jag XK8/XKR tuning?
27-02-2006, 10:14 AM
#1
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jag XK8/XKR tuning?
am thinking of getting a XK8 or XKR (preferably XKR) but wondered what the tuning possibilities are. i found this for the XKR:
http://www.tdi-plc.com/JaguarXKR.html
usual stuff like extra boost, exhaust, induction, bigger intercooler etc but prices are silly! is there no way i could just get someone like pro-alloy to make a decent intercooler and i just fit it myself? does anyone know anywhere cheaper for off the shelf bits.
and for the normally aspirated XK8 4.0 V8, what mods can be done apart from exhaust and filter? what would be the best chip for them etc.
and does any of the XK8's suffer from the Nikasil problem.
http://www.tdi-plc.com/JaguarXKR.html
usual stuff like extra boost, exhaust, induction, bigger intercooler etc but prices are silly! is there no way i could just get someone like pro-alloy to make a decent intercooler and i just fit it myself? does anyone know anywhere cheaper for off the shelf bits.
and for the normally aspirated XK8 4.0 V8, what mods can be done apart from exhaust and filter? what would be the best chip for them etc.
and does any of the XK8's suffer from the Nikasil problem.
27-02-2006, 10:21 AM
#2
I cant see the point in buying the N/A one and spending a load of money on it only to stil lbe slower than the SC one.
I wouldnt really touch the SC one much performance wise unless i converted the gearbox to manual or something, they are quicker than the gearbox justifies as standard anyway.
I wouldnt really touch the SC one much performance wise unless i converted the gearbox to manual or something, they are quicker than the gearbox justifies as standard anyway.
27-02-2006, 10:24 AM
#3
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yep good point
i found a place in USA selling the Arden uprated intercooler for about Ł800, still pricey and i'd need mapping on top of that and as you say the transmission might not be up to it
i found a place in USA selling the Arden uprated intercooler for about Ł800, still pricey and i'd need mapping on top of that and as you say the transmission might not be up to it
27-02-2006, 10:27 AM
#4
Its not just that the transmission isnt up to handling the power (although that is an issue) its also that its just SO slow to change gear when you nail it that if i was bothered about it being a really quick car in the real world i wouldnt want that transmission, its more suited to a genlte cruiers than a hard charger.
shame, cause other than that, they are awesome cars
shame, cause other than that, they are awesome cars
27-02-2006, 10:40 AM
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am not a huge fan of nitrous, although i have got it on one of my cars at the moment! its a bit extreme to put on cars which are expensive to fix IMHO.
just been doing some reading up and the exhaust system is one of the main restrictions on the jag v8's, and the standard intercooler is a major restriction on the supercharged ones.
just been doing some reading up and the exhaust system is one of the main restrictions on the jag v8's, and the standard intercooler is a major restriction on the supercharged ones.
27-02-2006, 08:25 PM
#7
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The supercharged version has a chargecooler... There is quite a simple pre- rad upgrade available for these...paramount perfrmance or racing green ltd. sell them.....
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27-02-2006, 08:45 PM
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yer my dad has an XJR modified by paramount performance hes had it lowered blitz induction work, full stainless exhaust the meshed front, adjustable steering smaller supercharger pulley and samco red hsoing looks stunnign and is expected now to be about 450bhp
it is a surprisngly quick car and delivers power in a mega way
it is a surprisngly quick car and delivers power in a mega way
27-02-2006, 08:45 PM
#9
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forget to mentionall this has cost about Ł8000
www.paramount-performance.co.uk
also i know of an older XJR (x300) straight 6 twin turbo pushing 450bhp automatic very rare but same money as a very high mileaged v8 xjr
www.paramount-performance.co.uk
also i know of an older XJR (x300) straight 6 twin turbo pushing 450bhp automatic very rare but same money as a very high mileaged v8 xjr
27-02-2006, 09:50 PM
#11
WTF 
...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience 
Anyone can read books...but its not reality REAL WORLD speak when you put the book down 
...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down
27-02-2006, 10:19 PM
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Originally Posted by Bosch-Man
WTF ...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down
...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down 
I HAVE A 2000 XKR
AND MUST SAY THAT I COULDNT CHANGE GEAR AS QUICK AS IT DOES ,THE WHOLE PACKAGE WORKS WELL AND DOESENT NEED UPGRADING! 
XKR IS THE WAY TO GO AND A STD ONE WOULD SHAME A LOT OF WOULD BE SUPER CARS
SUPERALY {xkr,v12 e type,rs500,escos,btcc honda)
27-02-2006, 10:22 PM
#13
Originally Posted by Bosch-Man
WTF ...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down
...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down And even if there was a book about them, as you say the times make it look like everything is working fine anyway, so anyone reading about them wouldnt know about the slow reactions im on about.
Its not the actual physical change itself when you are already under acceleation i found annoyingly slow, its the time taken to realise it needs to kick down when you are cruising in a high gear.
27-02-2006, 10:23 PM
#14
Originally Posted by escort700bhp
Originally Posted by Bosch-Man
WTF ...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down
...0-60 in 4.8 secs for the very lastest XJR my one with 370bhp did 5.3 seconds to 60...slow gear changes?...I really wish people in here would only speak if they had experience Anyone can read books...but its not reality REAL WORLD speak when you put the book down I HAVE A 2000 XKR
AND MUST SAY THAT I COULDNT CHANGE GEAR AS QUICK AS IT DOES
Originally Posted by escort700bhp
THE WHOLE PACKAGE WORKS WELL AND DOESENT NEED UPGRADING!
XKR IS THE WAY TO GO AND A STD ONE WOULD SHAME A LOT OF WOULD BE SUPER CARS
SUPERALY {xkr,v12 e type,rs500,escos,btcc honda)
XKR IS THE WAY TO GO AND A STD ONE WOULD SHAME A LOT OF WOULD BE SUPER CARS
SUPERALY {xkr,v12 e type,rs500,escos,btcc honda)
Excpetion the fuel consumption (i rarely saw much over 15mpg during brisk driving
)
27-02-2006, 10:32 PM
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with respect the super v8 is about a ton heavier so it would explain the crap change it also has different gear ratios so a comparison would be point less 
anyway they are good cars with stunning looks
heres a pic of mine
http://i13.photobucket.com/albums/a2...3022006188.jpg
SUPERALY
anyway they are good cars with stunning looks
heres a pic of mine
http://i13.photobucket.com/albums/a2...3022006188.jpg
SUPERALY
27-02-2006, 10:33 PM
#16
Originally Posted by escort700bhp
with respect the super v8 is about a ton heavier so it would explain the crap change it also has different gear ratios so a comparison would be point less
anyway they are good cars with stunning looks
heres a pic of mine
SUPERALY
anyway they are good cars with stunning looks
heres a pic of mine
SUPERALY
Ive driven the XKR too, not just the super V8, ive just driven the SV8 more out of the too, and phils comments where about the XJR, which has the same ratios as the SV8 im 99% sure, the XKR ratios i cant comment on, but the action is the same, and i dont see how the weight would effect the time to change, and i certainly never noticed it.
Definately more pace in the XKR though, so the wieght difference certainly effects that
Anyway, its mainly a comment on auto boxes in general, i just wouldnt want any high performance car to be an auto, i like manual boxes.
27-02-2006, 10:41 PM
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DID YOU KNOW THAT ITS A MERCEDES GEARBOX?
IVE SEEN /DRIVEN THE PADDLE SHIFT CONVERSION FOR THESE
AND IT WAS QUICK
BUT I THINK ID GET TIRED OF DRIVING IT IF IT WERE A MANUAL ,ITS JUST NOT THE JAGUAR "THING"
CHEERS
IVE SEEN /DRIVEN THE PADDLE SHIFT CONVERSION FOR THESE
AND IT WAS QUICK
BUT I THINK ID GET TIRED OF DRIVING IT IF IT WERE A MANUAL ,ITS JUST NOT THE JAGUAR "THING"
CHEERS
27-02-2006, 10:44 PM
#18
Originally Posted by escort700bhp
DID YOU KNOW THAT ITS A MERCEDES GEARBOX?
IVE SEEN /DRIVEN THE PADDLE SHIFT CONVERSION FOR THESE
AND IT WAS QUICK
BUT I THINK ID GET TIRED OF DRIVING IT IF IT WERE A MANUAL ,ITS JUST NOT THE JAGUAR "THING"
CHEERS
IVE SEEN /DRIVEN THE PADDLE SHIFT CONVERSION FOR THESE
AND IT WAS QUICK
BUT I THINK ID GET TIRED OF DRIVING IT IF IT WERE A MANUAL ,ITS JUST NOT THE JAGUAR "THING"
CHEERS
I agree that the manual suits the car in standard trim, i found it a very quick way of getting round without any effort in the main, you can drive for hours and not notice you have moved, its like being in a sofa, lol, its just not what i would pick for a trackday toy or a car tuning project as i like the sensations of slamming through a manual box etc for that sort of thing.
27-02-2006, 10:55 PM
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not my choice either for the track(to heavy} thats why ive got these as well lol
http://i13.photobucket.com/albums/a2...p/28aebd5a.jpg
http://i13.photobucket.com/albums/a2...0122005037.jpg
the escort has GT35R--TURBO QUAD 45MM THROTTLE BODIES 670bhp 7speed ffd 8.5inch frt diff 9 inch mag rear KEVLAR BODY PANELS ,19 INCH CENTRE LOCK WHEELS ,ETC ETC
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING!
http://i13.photobucket.com/albums/a2...p/28aebd5a.jpg
http://i13.photobucket.com/albums/a2...0122005037.jpg
the escort has GT35R--TURBO QUAD 45MM THROTTLE BODIES 670bhp 7speed ffd 8.5inch frt diff 9 inch mag rear KEVLAR BODY PANELS ,19 INCH CENTRE LOCK WHEELS ,ETC ETC
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING!
27-02-2006, 10:58 PM
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Originally Posted by chip-3door
Have you got any smaller pictures? i can nearly see those
From what i can see they look awsome!!! lol
Get any better pics?
27-02-2006, 11:04 PM
#27
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the escort has GT35R--TURBO QUAD 45MM THROTTLE BODIES 670bhp 7speed ffd 8.5inch frt diff 9 inch mag rear KEVLAR BODY PANELS ,19 INCH CENTRE LOCK WHEELS ,ETC ETC
NOT FINISHED IT YET ,NOT MUCH LIKE THE PIC NOW THOUGH
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING
NOT FINISHED IT YET ,NOT MUCH LIKE THE PIC NOW THOUGH
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING
27-02-2006, 11:07 PM
#28
Originally Posted by escort700bhp
the escort has GT35R--TURBO QUAD 45MM THROTTLE BODIES 670bhp 7speed ffd 8.5inch frt diff 9 inch mag rear KEVLAR BODY PANELS ,19 INCH CENTRE LOCK WHEELS ,ETC ETC
NOT FINISHED IT YET ,NOT MUCH LIKE THE PIC NOW THOUGH
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING
NOT FINISHED IT YET ,NOT MUCH LIKE THE PIC NOW THOUGH
SHOULD BE OUT AT RSOC SHOWS LATE THIS YEAR ,TIME ALLOWING
Seriously though, that sounds truely mental mate
27-02-2006, 11:26 PM
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NO HAVIN A LAUGH DOH!
the engines not been dynoed yet so figures are fiction jus now but 700 is a possability at the top end, but as its a race car engine so reliability is an issue
its currently at TOMMY FIELD MOTORSPORT
HAVIN A LAUGH DOH!the engines not been dynoed yet so figures are fiction jus now but 700 is a possability at the top end, but as its a race car engine so reliability is an issue
its currently at TOMMY FIELD MOTORSPORT
28-02-2006, 03:44 PM
#38
Sport mode on and traction off...and its fucking FUN ...Mercedes 5 speed auto....the earlier XJR (323bhp) had a 4 speed Jag one.
I hate people that speak about things that have only read it in a magazine
...Mercedes 5 speed auto....the earlier XJR (323bhp) had a 4 speed Jag one.I hate people that speak about things that have only read it in a magazine
28-02-2006, 03:49 PM
#39
Originally Posted by Bosch-Man
Sport mode on and traction off...and its fucking FUN ...Mercedes 5 speed auto....the earlier XJR (323bhp) had a 4 speed Jag one.
I hate people that speak about things that have only read it in a magazine
...Mercedes 5 speed auto....the earlier XJR (323bhp) had a 4 speed Jag one.I hate people that speak about things that have only read it in a magazine