Jump to content
PCMTEC Forums

fordsrule

Members
 View Profile  See their activity

  • Posts

    123

  • Joined

  • Last visited

  • Days Won

    1

 Content Type 

Posts posted by fordsrule

    CAI

    in PCMTEC Editor Questions

    Posted

    42 minutes ago, Darryl@pcmtec said:

    Fordsrule, I doubt there will be any tuning required as the Ford uses a Temperature and Manifold Absolute Pressure (T-MAP) sensor (located in the intake at an optimal position)  to calculate the actual air being ingested by the engine. The cold air intake should reduce the temperature and maybe reduce restriction so that more air can get into the engine. In both cases the T-MAP sensor will detect the change and compensate accordingly.

    If you modified the exhaust or camshafts then you would have changed the VE of the engine and that would require changes to the Speed Density tables to reflect the VE changes.

    Hi Darryl, ok i better mention that the exhaust is modified, there is a set of Pacemaker extractors with a hi-flow cat and a 2.5in system.

    Does that make a difference lol?

    Thx

    CAI

    in PCMTEC Editor Questions

    Posted

    Hi, just enquiring if there is a guide to tuning for a Cold Air Intake?

    So what table do I go to and what am I aiming for in terms of changing values?

    The car is a na xr6, cai is a Streetfighter

    Cheers

    Unlicensed File

    in PCMTEC Editor Questions

    Posted

    Well, the navaigator only shows the tcm data when the tune file is opened.

    This file was causing the car to stall at idle and it sounded like it was cammed when it did idle.

    I flashed the car with a known good tune and it idled normally.

    I merged the tcm data from the good tune with the first tune and flashed the resulting file and it idled normally

    Now i then merged the good tcm tune with the whole first tune, the resulting file is larger.

    Now the owner says it goes a lot better overall.

    So my conclusion is that there is something in the pcm tune that can't be seen

     

     

     

    Unlicensed File

    in PCMTEC Editor Questions

    Posted

    I see, ok well the strategy in question was done for a vehicle by someone else but it has issues. I don't believe it was done by pcmtec.

    There seems to be more to the tune than what is showing in the navigator.

    I think if i could increase the idle speed a bit it would help

    Thx

    Unlicensed File

    in PCMTEC Editor Questions

    Posted

    Hi, just a question, if a strategy is unlicensed are you still able to see everything contained in the strategy?

    I have a strategy that is unlicensed for editing but is licensed to flash, the TCM is licensed and this is all that shows in the navigator 

    Cheers

    Steve

    navigator.PNG

    file info.PNG

    Shift burble

    in Engine Tuning (AUS)

    Posted

    Is tuning the zf so it changes gear quicker the same as fitting a shift kit as was the case back in the old days lol?

    I would like a bit quicker shift myself in sequential mode, you have to predict when to make the change so it doesn't rev too high

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    22 minutes ago, Roland@pcmtec said:

    I honestly don't understand what you mean by drop in revs. The difference in rpm between 2nd and 3rd gear is fixed based on your gear ratios, I don't really see how it can vary.

    Sorry, 

    As you watch the tachometer rise as the engine speed increases, the transmission changes into the next gear, let's say into 2nd. Then as the gear is engaged the revs will drop a certain amount, say 3200 rpm, with me so far?

    Now the revs increase once again as it approaches changing into 3rd gear, instead of dropping 200 rpm as third engages, it would drop about 500 rpm.

    So, as it reaches say 3500 rpm as we have said already, before changing to 3rd, it would drop to 3000 rpm instead of say 3300 rpm.

    These numbers are for example of course.

    I hope this has cleared it up for you, and thank you for helping.

    Cheers

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    3 hours ago, Sam said:

    How many rpm does it drop from 2nd to 3rd and then what sort of rpm does it drop from 3rd to 4th? Are you able to data log the car so we can accurately see what sort of rpm it's dropping?  

    Has the zf been tuned?

    The drop in revs between 3rd to 4th to 5th to 6th is normal. The performance is great, it's just from 2nd to 3rd it tends to drop too many revs.

    Yes I believe it has been tuned

    Thanks

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    1 hour ago, Roland@pcmtec said:

    What do you mean drops 500 revs? The rev drop is based on the gear ratio, its a mechanical connection so you can't change that.

    Or do you mean it drops from say 3500 to 3000 rpm, but then when the gear engages the revs come back up to say 3200 rpm?

    Do a compare to stock of the tune, you'll quickly see where it has/hasn't been tuned.

    To be more specific, yes from 3500 to 3000 for example. No, after the gear engages the revs will start to climb again until it reaches the point at which it will go into 4th etc.

    The accelerator position does not change very much.

    Just so you know, when from a standing start, I press down on the accelerator more, not quite to the floor but more than half way, it picks up speed of course but at about 3000 - 3500 rpm it really begins to get up and go, right up to redline, then it changes to the next gear it'll do the same thing. It will get up to around 150 - 160 klm, and still has 2 more gears to go.

    Now, do you think that the difference in performance at around 3000 - 3500 rpm is connected to the problem with the rev issue with the transmission?

    Hope this makes sense

    Cheers

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    1 hour ago, Roland@pcmtec said:

    I'm not really sure what you mean by dropping too many revs. A datalog or a video would help. Also we really need to know if the ZF has been tuned or if it has been physically modified (rebuilt).

    Well, for example changing from 1st to 2nd it might drop 200 revs  then changing inyon3rd it would drop more like 500revs (for example), therefore it loses speed.

    I am under the understanding it has been tuned,  but to what I don't know.

    It hasn't been rebuilt. 

    I shall try a data log, the Forscan you guys talk about  do I need a license to do a scan with it?

     

     

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    27 minutes ago, Roland@pcmtec said:

    Do you mean it is clunking into gear? Or it is missing a gear completely?

    Has it been previously tuned? Anything show up in your compare to stock?

    No it doesn't clunk or miss or slip, it just drops too many revs as it goes into 3rd.

    It's mostly obvious when going up hill front a standing start eg lights

     

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    31 minutes ago, Sam said:

    Under "ZF Shift/Lockup Schedule" you will have all your shift pattern tables (there is a few of them), in these tables the figures are OSS (output shaft speed) and with some other information you should be able to figure out roughly what engine rpm it'll shift at for a certain OSS. 

    However I don't think dropping revs between gear changes has much to do with these tables. 

    Hi, ok if you care to explain sir, I'm all ears lol.

    Also, it does seem worse going up a hill, and the throttle percentage is only nominal  as in speed limit of 60

    Cheers

    Zf tuning guide

    in Transmission Tuning (AUS)

    Posted

    Hi, this might be a long shot but could you point me in the direction of the engine rev settings the ZF changes gear? Meaning is there a table that sets the rev point that the zf will change gears? I have an issue where when it changes into 3rd the revs drop too much, this is only at medium throttle  it's ok at wot.

    Thanks, regards Steve 

×
×
  • Create New...