Figures
#1
Figures
Hi all,
Not happy with the performance of my 2001 XKR , 50k miles
(Allegedly) ran some checks this weekend recorded figures-
Compression test 10-11 bar on all cylinders
Manifold pressure at 5000rpm 135 kpa
All coil packs and spark plugs working ok
Its ok having this information, but if you have nothing to compare
it too then its useless really. Noticed on tickover that had
negative pressure (Sucking) at the main crankase breather.Is this
normal?
Is there any documentation of figures specific to this engine
that a comparison can be made?
Best Regards all
Bob
bt965 at yahoo.com
Not happy with the performance of my 2001 XKR , 50k miles
(Allegedly) ran some checks this weekend recorded figures-
Compression test 10-11 bar on all cylinders
Manifold pressure at 5000rpm 135 kpa
All coil packs and spark plugs working ok
Its ok having this information, but if you have nothing to compare
it too then its useless really. Noticed on tickover that had
negative pressure (Sucking) at the main crankase breather.Is this
normal?
Is there any documentation of figures specific to this engine
that a comparison can be made?
Best Regards all
Bob
bt965 at yahoo.com
#2
Your engine should have about 9.5 bar when measured with the starter cranking the engine and full throttle (so not with a running engine), so 10 to 11 is too high, and might probably be related to the way the measurement was taken.
If you want to know if your engine is working ok, best is to go to a dyno, preferably one that uses only 1 drum per wheel (so not the dyno dynamics/Maha units that use 2 small drums per wheel) as there is more rwhp info around from these ones to compare with.
If you want to know if your engine is working ok, best is to go to a dyno, preferably one that uses only 1 drum per wheel (so not the dyno dynamics/Maha units that use 2 small drums per wheel) as there is more rwhp info around from these ones to compare with.
The following users liked this post:
bt965 (06-13-2011)
Thread
Thread Starter
Forum
Replies
Last Post
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)