Power Fc Water Temp Settings

[cefiro]

just wondering if the correction values are right on my car, my car when running at operating temp will only go over 80deg on hot day or leaft to sit in traffic. In my water temp settings the correction value 1.00 is set at 80deg does that mean that the car will only run full power wehn above 80????

hope that make sence

[JonnoHR31]

thats right, it means it wont stop adding fuel for cold enrichment until you get over 80C. most cars should be seeing over 80 at full temp all the time

[STATUS]

Nah its got nothing to do with power, the values are fuel corrections. 1.00 means there is no correction 1.10 means 10% and 1.20 means 20% all numbers over 1.00 are adding fuel, corrections like 0.90 are 10% deductions.

Edited November 16, 2009 by URAS

[cefiro]

Ok, I think I got it, however if its adding fuel then would it start to run rich most of the time then therefore not potentially running richer AFR etc possibly loose power? At normal running temps my car will not go over 80deg only if its been sitting in traffic and heat soaking. so I may change it to 78 and see what happens.

[skylinecouple]

Just leave the over 80deg at 1.00 on low load and 1.00 on high load which is the left and right columns. For the next lowest temp which is over60deg I think, leave it also at 1.00 left column and 1.00 right column. You will save a lot of fuel and your car will run cleaner as a result. After that though, you will have to add a little fuel for best results. Took me around 9mths to slowly get it right. I get 450k's on average around town and 450 to 620 on long trips. You also need to look at accell pump and drastically reduce the numbers for best results.

[JonnoHR31]

you cant change the temp values, only the correction at those temps the next one below 80 is 50, i've changed myne to 1.00 at 50 (car never gets to 80) and it drives perfectly. just dont thrash it until its close to full temp.

what temp does your car run at? the power fc interpolates between the temps, meaning if it has 1.00 at 80C and 1.30 at 50C then it'll be 1.20 at 60C and 1.10 at 70C etc. if your cars getting up to 78 it'll be so close to 1.00 it wont make any noticeable difference

[geraus]

mine sits at 80c 81c 82c between them depends on the day........

[SilverECR33]

hmm this is all rather interesting.. so if its over 80 @ 1.00 would u decrease? or increase?

ps. mine never goes over 80, highest i see it is 78, normally its on about 74 during everyday driving on a hot summer day. I will see 81-83 on a track day.

[cefiro]

got you, can only change correction value, and it wont be much anyway will have a look on the way home now and put it up.

cheers Ben

[skylinecouple]

got you, can only change correction value, and it wont be much anyway will have a look on the way home now and put it up.

cheers Ben

Just be aware that adjustments should only be done if the tune needs it. Just leave the over 80deg at 1.00 in the left and right column. It would have to be a really hot day and you would have to be very fussy to want to change that. The next temp down which apparently is 60deg should also be 1.00 or at most 1.003 in the left column. The right column is for high load and will almost definately not need any change. If you really know your car then you will feel the difference even if you adjust by .010. Just never use someone elses tune as a guide, make a small adjustment and see how it goes.

Start at say, temp 10+ when you start it in the morning and gradually trim this setting till the car starts to feel doey when you drive off. You will gradually get better fuel economy and if need be add 1 or 2 richer to get it perfect. Move to the next one above and start the process again. I have my car running almost the same first thing in the morning as when warm.

Remember, left column light load so thats where you need to tune the most unless you thrash your car when cold.

[JonnoHR31]

hmm this is all rather interesting.. so if its over 80 @ 1.00 would u decrease? or increase?

you cant change the temp values, only the correction at those temps the next one below 80 is 50

unless someones done some funky shit every power fc's setting should be 1.00 in both colums at 80C.

the next one down from that is 50C and the standard pfc settings (RB20 and 25) for that are 1.094 at 1792 (~P3) load and 1.156 at 8960 (~P13) load

if you have trouble with your car reaching 80C then try lowering the values for 50C but leave 80 at 1.00

Edited November 17, 2009 by JonnoHR31