Urgent! Need help!!

1. dbft Newbie Joined: Oct 2007 Posts: 8

   #1 13th October 2007, 15:44

   I fit Kent PT11 high cam to my engine--TU3JP 1360cc. But the car can not run wel at all.
   
   I follow the instruction to installate as the standard timing, but finally I found the fuel injection is too much and the intake manifold pressure is much higher than original figures (it's around over 450), and the lambda shows the voltage is 0.8~0.9...
   
   As I know, the PT11 can be used under original timing and ECU systems, but why there are so much matters?
   
   My car is down for over one week, your any advice and comments will be highly appreicated.
   
   Thanks in advance.
   
   The same posted in general chat as well... anyway need you help!!!
2. Karl Saxperience Hardcore! Joined: Apr 2006 Ashford Posts: 25611 LY R26

   #2 13th October 2007, 16:18

   youll need a remap mate.
3. dbft Newbie Joined: Oct 2007 Posts: 8

   #3 14th October 2007, 01:34

   Quote:

   Originally Posted by Soulless youll need a remap mate.

   But Kent's person told me this cam can run well under the standard conditions, no need to modify anything else...
   
   You means I need to change the ECU?
4. frankie Saxperience Addict Joined: Apr 2006 Frome, down deepest, darkest zummerset Posts: 12971 VTRallye

   #4 14th October 2007, 01:38

   no just remap. means it can change the ecu settings suitable for the cams.
5. dbft Newbie Joined: Oct 2007 Posts: 8

   #5 14th October 2007, 02:10

   Quote:

   Originally Posted by frankie640 no just remap. means it can change the ecu settings suitable for the cams.

   Thanks. you mean I need to change the ECU. But kent's perosn and cituning's person told me I do not need to change anything just complying with original setting is Ok.
   
   Confused...
6. lavo-vts Saxperience Forum Bum Joined: Jul 2006 derbyshire Posts: 3515 mk1 vts (ETW Mercury Grey)

   #6 14th October 2007, 12:46

   maybe the timing needs setting slightly different. do you have a vernier pulley?
7. dbft Newbie Joined: Oct 2007 Posts: 8

   #7 17th October 2007, 15:55

   Today, I fit again the cam.
   
   I found when the rpm was over 2000rpm, the lambada's voltage will be ok, and the manifold pressure went down as well.
   
   When I drove the car after high rpm and the engine idled for a while, then moved the car, the car paused for a second and the rmp dropped very low.
   kept powering, everything became ok.
   
   is it the reason of more fuel injection? and if it is, why does it cause?
   
   looking forward to your idea...
   
   thanks
8. dbft Newbie Joined: Oct 2007 Posts: 8

   #8 17th October 2007, 15:57

   by the way, does anybody have the experience of fitting Kent PT11 cam for TU3JP engine...
   
   maybe that will be my good reference and very helpful...
9. dbft Newbie Joined: Oct 2007 Posts: 8

   #9 22nd October 2007, 02:17

   Quote:

   Originally Posted by dbft by the way, does anybody have the experience of fitting Kent PT11 cam for TU3JP engine... maybe that will be my good reference and very helpful...

   I fit the cam again, the engine can run but the car much slower than original one...
   
   Does anybody have the experience on Kent's PT11 cam in TU3JP engine.
   
   What is your ECU type?
   
   I doubt it is a problem with ECU. Mine is Bosch MP5.2
   
   Thanks for your advice