any XDF out there for the torquehead conversion

[mullettcar]

i have a 95 camaro z28 i used tuner pro rt and now i have the torquehead system with the 411 pcm i am having trouble with setting my speedo im using a 2002 xdf file from this site but the xdf names are different then the one i used on my 95 pcm im just trying to figure out how i can fix my speedo it is out by 20 km per hour when im doing a 100km per hour my speedo says 120 km per hour im not sure what to change in the xdf any help would be super as i am still learning how to do this stuff

oh ya i have 3;42 posi and 19in rear z06 vette wheels and a 4l60e trans
i guess what im asking is what scaler do i change to adjust my speedo

[mekkis]

You can generate the correct values using BlueCat Trans Tool, a quick netsearch will provide a few download links across the net.

[mullettcar]

well that looks confusing lol thanks anyway

[mekkis]

well that looks confusing lol thanks anyway

It's way easier than mucking around blindly.

What has you confused?

[mullettcar]

well i use tuner pro rt and i am using xdf for a 2002 which i found on here i have a 12212156 pcm but i cant figure out with the xdf what numbers i need to change

[MO LS Noobie]

Try H0101 I think it is pulses per mile of VSS. It worked for me.

[mullettcar]

so mine says 57187 pulses per km and my speedo when im doing 100 km per hr says im doing 120 km per hr so its out by 20 km but i dont know how much to change the number by because when i use the xdf with my lt1 pcm tune it says its 159068 but i think thats cause the xdf doesnt work with the lt1 pcm tune and if i put that number in my speedo just goes all the way around as soon as i start moving
so im wondering if there is a formula to figure out howw many pulses i need to make it say to get the 20 km back if you know what i mean

[MO LS Noobie]

so mine says 57187 pulses per km and my speedo when im doing 100 km per hr says im doing 120 km per hr so its out by 20 km but i dont know how much to change the number by because when i use the xdf with my lt1 pcm tune it says its 159068 but i think thats cause the xdf doesnt work with the lt1 pcm tune and if i put that number in my speedo just goes all the way around as soon as i start moving
so im wondering if there is a formula to figure out howw many pulses i need to make it say to get the 20 km back if you know what i mean

If your speedo is 20% fast (120 indicated is actually 100 kph) them multiple by .8 (57187 X 0.8= 45749) So i'd try 45749 and trim it from there.

If you have trouble with editing the numbers you might need a different .xdf.

[MO LS Noobie]

Is your speedo calibrated in MPH or KPH? Might be as simple as changing indicated speed.

[mullettcar]

thanks i will give that a try my brain just wasnt thinking it would be that easy sometimes i over think stuff