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220kw 5L rebuild 

 

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Posted: Sun Apr 27, 2008 4:32 pm 
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i thought the cam position sensor did as it says and informed the computer what position the cams in and when to open and close the injectors ...which is aligned at TDC after the cams been dialled in during engine assembly

is this correct?
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Posted: Sun Apr 27, 2008 8:19 pm 
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XR9UTE wrote:
TPS does nothing for timing.
What does same position mean?...what voltage?
The cam sensor does not time the injectors, the crank encoder does.
The CID sensor is only for signifying what stroke the cyl 1 is on for start of fuel injector timing, the actual firing events are marked by the crank encoder.
If you can make an adjustable crank sensor mount you'll be able to adjust base timing with that.
Get your TPS to 0.98volts for the least lag between idle and part throttle modes and therefore best performance.


I think you'll find the crank encoder gives the ecu the reference point of when to fire the ignition not the injectors.
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Posted: Sun Apr 27, 2008 11:27 pm 
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t2te50 wrote:
XR9UTE wrote:
TPS does nothing for timing.
What does same position mean?...what voltage?
The cam sensor does not time the injectors, the crank encoder does.
The CID sensor is only for signifying what stroke the cyl 1 is on for start of fuel injector timing, the actual firing events are marked by the crank encoder.
If you can make an adjustable crank sensor mount you'll be able to adjust base timing with that.
Get your TPS to 0.98volts for the least lag between idle and part throttle modes and therefore best performance.


I think you'll find the crank encoder gives the ecu the reference point of when to fire the ignition not the injectors.


No that's incorrect.... it(the CID) gives a point of reference as to which stroke the engine is on from TDC on cyl 1. Then it uses the crank encoder to determine exactly the crank degrees at which to fire the injectors. A single tooth reference(the CID sensor) for 720 degrees of crank rotation is not enough resolution for accurate sequential firing of the injectors.
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Posted: Mon Apr 28, 2008 3:26 pm 
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hopeing to get 160+kmh and 13.8-14.2 this friday night.
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Posted: Mon Apr 28, 2008 4:54 pm 
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Have Heathcote got a test n tune friday night?
I didn't think Calder were open again yet?

 

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Posted: Mon Apr 28, 2008 8:25 pm 
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Good luck, should be a cold night too?

 

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Posted: Tue Apr 29, 2008 12:45 am 
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I'll give calder a call tomorro if not I'll go in a fortnight.
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Posted: Wed Apr 30, 2008 11:14 am 
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I've just been to the weigh bridge, my car weighs a whopping 1,700kg!!!!!!!!! I'm an extra 100kg. That kind of kg will easily add an extra .2 second onto my time.
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Posted: Wed Apr 30, 2008 11:39 am 
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t2te50 wrote:
I've just been to the weigh bridge, my car weighs a whopping 1,700kg!!!!!!!!! I'm an extra 100kg. That kind of kg will easily add an extra .2 second onto my time.

Add an extra .2 tenths compared to what? These AU's are not exactly lightweights. Just be thankful you dont have a ute, or it would be heavier again...lol.

Anyway, good luck at the track. I look forward to seeing what numbers you put down.
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Posted: Wed Apr 30, 2008 11:45 am 
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I'm not getting C**k man it would just be good to stick it up some of the sceptics (spelling) out there.

Whatever happens I'm stoked on a personal level which is all that matters.
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Posted: Wed Apr 30, 2008 12:26 pm 
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xr8ute wrote:
t2te50 wrote:
I've just been to the weigh bridge, my car weighs a whopping 1,700kg!!!!!!!!! I'm an extra 100kg. That kind of kg will easily add an extra .2 second onto my time.


Thats not bad, The old XH weighed in at 1600kg plus 120kg for me so its pretty even in that department.
xr8ute is right, How can you say it'll at .2 of a second? What are comparing too. An AU is an AU, you cant say you can drop .2 of a second off coz it weighs 1700kg. :?

 

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Posted: Wed Apr 30, 2008 6:16 pm 
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t2te50 wrote:
I've just been to the weigh bridge, my car weighs a whopping 1,700kg!!!!!!!!! I'm an extra 100kg. That kind of kg will easily add an extra .2 second onto my time.


Your time's your time mate!

 

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Posted: Wed Apr 30, 2008 11:48 pm 
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This things pretty mental. Anything over 2,500rpm and it just bags them up, thats with 245/35/18 dunlops. Put the pressure down and still a handfull.

Acceleration wise, well I'm keeping my cards close to my chest lol :twisted:
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Posted: Thu May 01, 2008 1:59 am 
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t2te50 wrote:
This things pretty mental. Anything over 2,500rpm and it just bags them up, thats with 245/35/18 dunlops. Put the pressure down and still a handfull.


In first gear obviously.
Try using a tyre with a bigger sidewall. I get way better traction with cheap a** Wanli 225/50/16's at 30psi than i did with 265/30/19 Toyo Proxes4's. No point dropping pressure out of an 18" tyre, you dont achieve anything.

 

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Posted: Thu May 01, 2008 11:19 am 
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Can ya update us all with a list of work done to this engine? Save everyone having to trawl through 9 pages hehe :)

 

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