Lets start a load value thread

[QWKSNKE]

Obviously since the procharger has been installed, I see a higher load value on the engine when datalogging. However I feel that it maybe to high.

Richard, since you have made massive amounts of posts on the tweecer site, have you seen anything about how load variables should be adjusted to make up for the blower load?

Talked to the tuner at Modular Power House this past weekend (we went over there for Wall96cobra's tuning) and he said that he adjust load variables with the MAF transfer curve and something else. (SCT software)

Does that sound right?

[Wicked]

Are you asking us to post our load values?

Well, when Doug datalogged my car at the last dyno day, I was seeing 175% load at 4960rpm. Load started going down after that because the MAF was pegging.
It should be 200+% up in the higher rpms if the MAF wasn't pegging.

[QWKSNKE]

Are you serious? Mine look waaaaay better than that. Cruising speed I hit around 50-60% and at WOT I see around 125-130% (I think).

I was more concerned in getting it down around 30% (or less) at cruising speed. After talking with another guy that has a procharger I am thinking that they create a lot more load than Vortech or Paxton

[Sendero]

I went to do a search but came up empty.

I believe it was one of the guys with a turbo, or 93 notch himself..... but I distinctly remember a post about load with a power added. They were recommending changing the CID (displacement) values because that ultimately controls your load calculations. If you add CID, then your calculated loads will decrease and vice versa for the smaller CID.

[Wicked]

Originally Posted by Sendero

I went to do a search but came up empty.

I believe it was one of the guys with a turbo, or 93 notch himself..... but I distinctly remember a post about load with a power added. They were recommending changing the CID (displacement) values because that ultimately controls your load calculations. If you add CID, then your calculated loads will decrease and vice versa for the smaller CID.

EXactly, but I wouldn't know why you would care about lowering your load values.

Load value is just amount of air flowed divided by theoretical(CID*RPM).
How would lowering it help you?

[Sendero]

Originally Posted by Wicked

EXactly, but I wouldn't know why you would care about lowering your load values.

Load value is just amount of air flowed divided by theoretical(CID*RPM).
How would lowering it help you?

Just an example my good man. Gotta know how it works both ways before you understand how it effects the tuning.

[Wicked]

Originally Posted by Sendero

Just an example my good man. Gotta know how it works both ways before you understand how it effects the tuning.

You still didn't answer my question. How would a lower load value give better performance or tuning than the higher value even if the higher vaule is correct? Regardless of whether you up the CID and lower the load, its all relative.

[QWKSNKE]

I think load is what is killing my fuel economy.

There are so many tables that are based off load its not funny. (timing, fuel, etc)

[QWKSNKE]

Also,

Over 78-79% load will put you into open loop settings on a fox from I understand.

[Sendero]

Originally Posted by Wicked

You still didn't answer my question. How would a lower load value give better performance or tuning than the higher value even if the higher vaule is correct?

Don't you think thats kind of irrelevent? We are only adding engine potential, not taking it away. Now if we were running restriced class, you could probably use it to limit HP.

Regardless of whether you up the CID and lower the load, its all relative.

Yes it is. Increase CID = lower load values. Every fuel and spark table in the TwEECer is based on load percentages. With the lower load values you have just counteracted the load the supercharger just added.