performance upgrade?
#1
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#7
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RE: performance upgrade?
what i would do is look into unsized pulleys and changing the belt to fit the pulleys. frees up horse. install a k&n air box. remove the fan and use auxillary fans for cooling. run ngk r plugs and build you a set of 9mm or larger plug wires. choke off the exhaust for low end torgue. super charge it. remove any cold air emmissions if you can.
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#9
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RE: performance upgrade?
one Quik answer www.jaguarxp.com try it out with there pulley,intake and exhaust u can pick up 53rwhp want more 30rwhp port ur blower http://www.pse.us/index.htm hope tht helps thats what my plan is before summer looking around 510bhp and 500tq hope tht answers ur question those mods should be good enough to take down e55 m5 and RS6.
#10
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RE: performance upgrade?
the s-type R comes supercharged, I'd definitely upgrade that supercharger though. I'd also look into a true dual exhaust setup. Also you could look into relocting your ambient air intake outside of the engine bay. Which tranny do you have? the 6spd auto or the 5spd manual?
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rominempire
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
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10-08-2020 10:39 AM
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