What did you do to your X150 today?
#1961
The BHP you tout at 7500 rpm is still much lower than the supercharged power at 5500 rpm.
Therefore, blower at 5500 beats the snot out of over-revving the n/a engine.
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#1963
If the blower engine's power band is huge but drop off at 6500 rpm, that means its time to SHIFT, get back INTO that huge power band. RPM does not equal power or speed. Usage OF the power band is what allows power to be used.
The BHP you tout at 7500 rpm is still much lower than the supercharged power at 5500 rpm.
Therefore, blower at 5500 beats the snot out of over-revving the n/a engine.
The BHP you tout at 7500 rpm is still much lower than the supercharged power at 5500 rpm.
Therefore, blower at 5500 beats the snot out of over-revving the n/a engine.
For me Cee Jay the goal is to get my n/a just as quick or as close to a stock xkr 4.2 once that is achieved I'll either jump ship into a 5.0 xkr or 5.0 ftype where there's no need to play around with diff ratios or up the rpm limiter
#1964
#1966
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#1968
#1969
On hard acceleration, the other day, my check engine light came on. The car was running fine, so I cleared the code -p0171- but it quickly returned. Took it in to my Indy shop, they did a smoke test and found some old, brittle vacuum lines were cracked and leaking. He also found that the air intake wasn’t properly installed and also showed some smoke. Happy to report that it’s running great!
#1971
1. Battery age: this car needs >12.5 v consistently, more like 12.8. Use an AGM, quality unit, and try to keep it to 12.8 or above. Use a battery maintainer every night.
2. Don't leave your key near the car. Car detects it and may not shut down properly.
3. Car shuts down to about 50 milliamps in 3 minutes if you double lock it. Double lock it every time you shut it off, and it will shut down quicker.
Good luck.
2. Don't leave your key near the car. Car detects it and may not shut down properly.
3. Car shuts down to about 50 milliamps in 3 minutes if you double lock it. Double lock it every time you shut it off, and it will shut down quicker.
Good luck.
#1972
On hard acceleration, the other day, my check engine light came on. The car was running fine, so I cleared the code -p0171- but it quickly returned. Took it in to my Indy shop, they did a smoke test and found some old, brittle vacuum lines were cracked and leaking. He also found that the air intake wasn’t properly installed and also showed some smoke. Happy to report that it’s running great!
Said this a few times: the seals harden and shrink on these over the years. This p0171 code indicates that the Long term Fuel Trim (LTFT) mixture has leaned out beyond 20%, when it should be zero. The only practical way to find all the leaks is a smoke test. The brittle lines mentioned above were likely the thin grey ones going to the AIR unit from the back of the throttle body. Incredibly fragile, they break easily. A poorly fitted intake to the throttle body is really easy to do, as the part on the underside of the TB gets missed. In addition, o-rings shrink, on various lines, as well as the 4.2 model injectors. The oil cap and the dipstick seal also dry and leak. Lots of small leaks add up.
If you want to know if you have vacuum leaks, check your LTFT on each bank. If either varies more than 5% or so, you likely have a leak somewhere. Leaks can affect an individual bank, but usually affect both. The only practical way to find the problem is a higher pressure smoke test -- meaning use something stiffer than a rubber glove over the throttle body.
Good luck.
Last edited by panthera999; 02-13-2023 at 10:22 AM.
#1973
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#1975
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#1976
No, no droning. I still have the singular center section. Nice growl.
20201106_Jaguar-Exhaust-18-2.mov
20201106_Jaguar-Exhaust-18-2.mov
Last edited by BlkC4t_XK14; 02-22-2023 at 06:26 PM.
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#1978
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#1979
#1980
Those look great in black!👍 But, kinda trying to convince myself into a Mina back box!😂🤣
By the way, do you still have your original back box in place? Also, did you notice much difference (in anything) after installing your X-pipe?
Cheers
By the way, do you still have your original back box in place? Also, did you notice much difference (in anything) after installing your X-pipe?
Cheers
Last edited by Wm. Lyon; 03-02-2023 at 05:33 AM.