Do these guys know what they're talking about?
#1
Do these guys know what they're talking about?
I was watching a youtube video of a drag race between a stock XK8 and a lightly modded Z-28. I'm specially curious by what these two commenters said:
Is that true? Yesterday I tried a 0-40 mph acceleration in my car, (S mode, with traction on) and I felt that from 0 - 25 mph she was gutless, but by thirty she really picked up and glued me to the seat.
Also this guy:
What's the best way to launch these Jags for optimum 0-60?
Here's the video I was watching.
Originally Posted by aode06
Not this car,but I can tell you my XK8 is way faster than what I just say on your video.WAY FASTER The thing is, this particular engine has a serious flaw. The the oil breather tube port on the driver side is clogged after 30k ,it puts too much crankcase vapors on the passenger side breather, MAF , electronic TB and tricks the O2's to sensing what the MAF didn't.This makes the car lose 35+% power, and 99.99 percent of 4.0's have this issue. The engine HP is underrated as well, they make more
Also this guy:
Originally Posted by Acct1941
That Jag, when it was new, in Coupe form, could do 0-60 in 6.3 seconds in the hands of Motorweek. And they are the slowest auto journalists. He missed that start because he had the TRAC on, and he floored it instantly. That right there squanders .5-1 second to 60, even more in a 1/4. Any 4L V8 Jag (XK/XJ) can run a 15.0>¼ mi.
Here's the video I was watching.
#2
#4
#6
You should always keep your crankcase breathers clean. But there's a problem with the first commenter's theory.
The passenger (right) side crankcase breather tube enters the intake tube AFTER the MAF. So even if there are more vapors than normal pushed through that breather, it's quite unlikely that the MAF would ever know it or alter a signal because of it.
More vapor through the passenger (right) tube will muck up your throttle body and butterfly more quickly, however.
.
The passenger (right) side crankcase breather tube enters the intake tube AFTER the MAF. So even if there are more vapors than normal pushed through that breather, it's quite unlikely that the MAF would ever know it or alter a signal because of it.
More vapor through the passenger (right) tube will muck up your throttle body and butterfly more quickly, however.
.
#7
I must admit I have recently not bothered connecting the breather to my own polished intake pipes and simply pipe the breather down the side of the engine with a small filter, you can use a catch tank setup as potentially you cold leak oil through the pipe.......
The point is on one customers car who has an XK8 with 140k miles on the clock which I did this to, made 290 BHP on the rolling road and has not dropped one bit of oil and that was 6 months ago
The point is on one customers car who has an XK8 with 140k miles on the clock which I did this to, made 290 BHP on the rolling road and has not dropped one bit of oil and that was 6 months ago
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