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Hi guys,

Im hoping someone can help me out here. I think I got this right but I doubt I can do anything about it.

I would command an EQ ratio of 1.139 for an AFR of 12.8 (stoich is 14.58),...

what are you guys smoking, anything over about 340-345 SOI (depending on the cam) will cause you to spray fuel directly into the exhaust stroke, how is that going to help anything? Its very easy to...

are you using the stock throttlebody? Im asking because I tried a 6.2 throttlebody on my 5.3 and it went absolutely nuts and wasnt worth the effort trying to hack the coefficient tables to make it...

you dont have to disable upshift torque management to get rid of it. Also this seems like a slightly different method compared to what ive done.

This is from the E78 tuning guide.

https://www.hptuners.com/help/gfx/intake_configs.jpg

The baro sensor depicted in those images seem to suggest its a seperate sensor altogether, which doesnt...

forgot to mention that I also have an LS9 3bar map sensor on my L83 truck, so it must be that the baro sensor is in the MAF as DSteck suggested, however with the PD blower my MAF sensor sees zero psi...

does it have a cam?

it does this on my whipple truck as well, despite the fact that my MAF sensor sees no boost pressure at all so im guessing its located in the MAP sensor and I hope its one of those things that could...

interesting, ive had the chance to log a few Whipple supercharged trucks with the whipple 4.0 inch CAI and they had perfectly smooth MAF readings, including my truck which has a Volant CAI (3.5" im...

I did this as well based on your recommendation in the other thread, but what I did is I made it equal to the high octane table, and yes tedious is an understatement however I cant really tell if it...

problems? not at all, you could even go negative at higher speeds in the 0 pedal area. My 0% pedal area is either zero's or negative values. Look at how the C7 Z06 table is setup for reference as...

33740 says its the upper limit to idle torque requests when pedal % is at zero, which kind of makes sense so I don't see why would anyone change this table?

The effect you got from the Speed...

That is a HUGE VE table to tune and your fueling will change with the weather, elevation, humidity, temperature and what have you. You could easily tune this with the MAF sensor, youre better off...

Mass Airflow pegs at 655.35 g/sec at the exact moment where AFR starts to lean out, your problem is right there!

With my setup I reach 510 g/sec at redline and 14psi, so I still have room to go.
...

im running 14psi near redline with a whipple 2.9 and only go up to 10,600 hz on the MAF, this is with a Volant CAI. You might have to increase the charge pipe diameter as suggested. Based on the...

You just seemed to have mentioned the Airmass torque coefficient tables, how about the RPM, Spark, MAP coefficients? Does any table alter torque calculations without changing "delivered torque" in...

I haven't tuned VE and don't understand why I have to, its disabled anyways and the only time I would need it is if my MAF sensor fails.

The issue at hand however is completely different, what...

the guy wants to bounce off the rev limiter quick. Yes they unfortunately like to do that in this part of the world...

So, I read this terminology more than a few times and cant figure out how fuel could cause knock. Im assuming this is real knock, or is this false knock caused (one way or the other) by fuel?

Also...

MAF only



So you enable that then edit the VSS axis into RPM values? I doubt that's how it works but what do I know? :doh:

whats wrong with the data logger? works fine with me lol. Anyways the surge thing has nothing to do with Whipple, with that said a canned tune is what it is. I don't use the Whipple tune though,...

I cant understand the recurrent use of words with similar meanings like peak or max however I also think that there are more tables in the ECU that HPTuners are still not giving us access to for one...

Well what you're doing sounds right for WOT tuning and to make sure it isn't limiting, however on a Forced Induction application, part throttle drivability suffers and will cause throttle surges...

and what is the theory behind increasing the tables by 6.52287% precisely lol.

Hi guys,

Ive been trying to dial in my 2014 5.3l GMC Sierra with a Whipple 2.9 running 13.5psi of boost and as with every other supercharged 2014 truck ive come across power surges at part...