Question about timing maps

[BlueX702]

Hey Guys-

If you have a high octane timing map that is dialed in on a car, can it be "cookie cutter"?

By "cookie cutter" I mean would it be a safe starting point for another car with similar mods, boost, and fuel?

[drkramm]

as long as there isnt a huge difference i dont see why not i used cobbs stg2 map asa starting point for mine and tweaked from there ... just log and watch for knock

[Joeyrukkus]

It really really really depends on what load cells the car is hitting and what the timing map looks like. There is a route any given car is going to take through that map. Do a log and plot out what you would expect the timing to do.

[BlueX702]

I just hate seeing high counts of knock with the stock timing maps. I would like minimal to no knock as a starting point to save time when doing a tune.

[chetrickerman]

Start with 4* at peak boost going up to 11-13* at 7k for 91 oct and going up to 14-16* at 7k for 93 oct

[UT_EvoX]

Originally Posted by chetrickerman

Start with 4* at peak boost going up to 11-13* at 7k for 91 oct and going up to 14-16* at 7k for 93 oct

On what turbo?

I don't think this guy is stock.



As soon as live tuning becomes available, I'm going to spend some time finding MBT in every single load cell. The resulting map minus 3 degrees will probably be what I use for most built Evo X tunes at our shop.

To the OP, take any timing map or timing curve given to you with a grain of salt because I know nobody giving them out has used a load-bearing dyno to verify the timing advance is optimal at every single RPM and load level.

But to answer, yes, you can take an established timing map from one build, pull back 3 degrees advance tapering above 100 load, and use it on a similar build with success. If you're doing "real" tuning, this will lead you to chasing yourself in circles but this sounds like a base map tune to get the car to the dyno so it won't necessarily matter. I hope whoever is doing the final tune on it starts from nearly scratch.

[BlueX702]

Cool, thanks man!

[BlueX702]

Originally Posted by UT_EvoX

On what turbo?

I don't think this guy is stock.



As soon as live tuning becomes available, I'm going to spend some time finding MBT in every single load cell. The resulting map minus 3 degrees will probably be what I use for most built Evo X tunes at our shop.

To the OP, take any timing map or timing curve given to you with a grain of salt because I know nobody giving them out has used a load-bearing dyno to verify the timing advance is optimal at every single RPM and load level.

But to answer, yes, you can take an established timing map from one build, pull back 3 degrees advance tapering above 100 load, and use it on a similar build with success. If you're doing "real" tuning, this will lead you to chasing yourself in circles but this sounds like a base map tune to get the car to the dyno so it won't necessarily matter. I hope whoever is doing the final tune on it starts from nearly scratch.

No I was talking about stock turbos.

Yeah, I've noticed each of these cars are different, but I'm just trying to simplify things and maximize my time spent on tuning multiple aspects of the tune.

[chetrickerman]

Originally Posted by UT_EvoX

On what turbo?

I don't think this guy is stock.

Its for stock turbo. I know he isn't stock, but i know that the cars he is tuning have the stock turbo.

Originally Posted by UT_EvoX

To the OP, take any timing map or timing curve given to you with a grain of salt because I know nobody giving them out has used a load-bearing dyno to verify the timing advance is optimal at every single RPM and load level.

Really?? So now that you have access to a dyno you know everything about tuning and how people make their maps?

Get off your high horse

He asked for where to start, not what timing is optimal at each load/rpm

[UT_EvoX]

Originally Posted by chetrickerman

Really?? So now that you have access to a dyno you know everything about tuning and how people make their maps?

Get off your high horse

Your professionalism truly shines through.

This is the opinion of every tuner I work with, not just my own thoughts. I've been dyno tuning cars for years, having unlimited access to a proper dyno is just a nice perk.

This whole e-tuning fad will come to a crashing halt, and I hope to help educate Evo owners enough so they realize e-tuning isn't a good alternative to a real tune.