XJR Performance Mods
#21
What's involved in cleaning the charge coolers? Can they be inspected by removing the black piece between the high pressure manifold from the s/c and the charge coolers? Do they need to be removed to clean them? If so, does the s/c need to be removed to remove the charge coolers?
I have a 2006 XJR 130k miles, with Bosch 010 ic pump. I'm thinking mine are most likely coated by now.
I have a 2006 XJR 130k miles, with Bosch 010 ic pump. I'm thinking mine are most likely coated by now.
However to clean them the safest way, without getting stuff in the engine, is to take them off and soak them in something that will remove soft carbon.
For that the SC has to come off unfortunately.
#22
Have you tried routine maintenance?
I felt the same, 25 more. First was plugs at 105,000 and then all four O2 sensors at 115,000 Used OEM. Think this was maybe 25 RWHP. Was rich on bank 2 and “slow” on bank 1. Both fine now. Plugs and sensors was under 400.00 USD.
Would love to clean the inter coolers. But looks daunting.
Would love to clean the inter coolers. But looks daunting.
#24
I searched for this a while ago and back then one UK company told me that they would "try" but only guarantee a 50% chance of success.
I think that Cambo did it back then however no longer does this.
But things can change like the Quaife LSD which Quaife stopped selling back then and sold all its inventory apparently is selling it again!
I think that Cambo did it back then however no longer does this.
But things can change like the Quaife LSD which Quaife stopped selling back then and sold all its inventory apparently is selling it again!
#26
Supercharged is almost as bad as N/A
Reprogramming the ECM can really provide gains with a turbocharged engine. Adjust only the waste gate to increases HP. Like going 30 over on the pulley.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
#27
Reprogramming the ECM can really provide gains with a turbocharged engine. Adjust only the waste gate to increases HP. Like going 30 over on the pulley.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
#28
Reprogramming the ECM can really provide gains with a turbocharged engine. Adjust only the waste gate to increases HP. Like going 30 over on the pulley.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
Adjusting timing, valves, F/A ratios, and knock sensor parameters is time consuming. Since the XJR runs rich by design, there is hp available here.
Most turbos are detuned enough that adjusting the waste gate pressure might yield 40 - 50hp. I doubt a ECM tune can do his.
Downside, like running a 20 or 30 over pulley, jacking up boost can create issues over time.
__________________
2008 XKR Convertible, (mods: AlphaJagTuning ECU Tune , 1.5lb pulley, (200cel cats( are now melted), xpipe, Bosch 001 pump, 180 Thermostat.
Drag strip : 7.9sec 1/8mi 90 MPH . 1/4 mile 12.55 at 112.98mph
432rwh Dyno on Mustang Dynometer , Approx 511 crank HP.
2013 XJ 5.0 SC (Alpha Jag ECU, TCU tune, crank pulley), 600+ HP, 11.6 sec 1/4th mi 122mph, 7.6sec 1/8th mi
2008 XKR Convertible, (mods: AlphaJagTuning ECU Tune , 1.5lb pulley, (200cel cats( are now melted), xpipe, Bosch 001 pump, 180 Thermostat.
Drag strip : 7.9sec 1/8mi 90 MPH . 1/4 mile 12.55 at 112.98mph
432rwh Dyno on Mustang Dynometer , Approx 511 crank HP.
2013 XJ 5.0 SC (Alpha Jag ECU, TCU tune, crank pulley), 600+ HP, 11.6 sec 1/4th mi 122mph, 7.6sec 1/8th mi
#30
I can try it , are you in the US?
__________________
2008 XKR Convertible, (mods: AlphaJagTuning ECU Tune , 1.5lb pulley, (200cel cats( are now melted), xpipe, Bosch 001 pump, 180 Thermostat.
Drag strip : 7.9sec 1/8mi 90 MPH . 1/4 mile 12.55 at 112.98mph
432rwh Dyno on Mustang Dynometer , Approx 511 crank HP.
2013 XJ 5.0 SC (Alpha Jag ECU, TCU tune, crank pulley), 600+ HP, 11.6 sec 1/4th mi 122mph, 7.6sec 1/8th mi
2008 XKR Convertible, (mods: AlphaJagTuning ECU Tune , 1.5lb pulley, (200cel cats( are now melted), xpipe, Bosch 001 pump, 180 Thermostat.
Drag strip : 7.9sec 1/8mi 90 MPH . 1/4 mile 12.55 at 112.98mph
432rwh Dyno on Mustang Dynometer , Approx 511 crank HP.
2013 XJ 5.0 SC (Alpha Jag ECU, TCU tune, crank pulley), 600+ HP, 11.6 sec 1/4th mi 122mph, 7.6sec 1/8th mi
#31
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BigD660
XF and XFR ( X250 )
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11-08-2013 07:57 PM
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