Originally Posted by Nad1370

You can try it, but you should'nt be misfiring at that boost level.
With the cold weather, I sometimes spike to 22.5-23psi with no issues of misfire. BPR7es gapped at .028-.029.
I did changed from BR7es because they started to misfire at 15psi !!

If the gapping didn't work, try a new set of plugs or fill up from a different gas station.
Was the 20psi reading from Al's map sensor(boost) log or your gauge ?
How far off was your boost gauge reading to his boost log ?

Originally Posted by modvp

NIce numbers, but it looks a bit on the lean side in the 6500-7200 rpm area.

Originally Posted by cfdfireman1

In what universe is 11.0/1 lean?

Originally Posted by projekt_shocker

I really dont know what is his boost log is read at.. I can prolly email him so he can check. All this was read out from the boost gauge, it held at 21 psi and it started to knock/misfire which is no good. so Al told me to lower the boost down to 20 psi and it seems to run fine then, but sometimes it spikes up to 22 psi and it misfires when its WOT. I really like to get this problem fixed, but a good cost effective way of fixing this.

Originally Posted by Boltz.

For the record thats not a low reading dynojet. For one, the dynojets can't be programmed to give higher or lower numbers like you can with dyno dynamics or the mustang dyno. The only thing you can change is the correction factor, STD reads higher and is what turbo trix uses to get their high numbers and mediocre track resuslts. AMS uses STD which is the lower reading of the two and in this dyno sheet from P&L, they are uncorrected like pruven does(in the winter). Uncorrected will give higher results than other correction factors becuase of the super crisp cold air that turbos love.

Not trying to burst your bubble, but I see a LOT of people spreading mis information about dynos....

Originally Posted by projekt_shocker

I want to fix my 'misfiring' issue i had during the tune day... i want to up my boost to 22psi just 2 more pounds so i can squeeze out as much power as i can right now. Do you guys think that regapping my current BPR7ES Plugs will do the trick?? I gapped them at .028-.029 I was thinking about going .025-.026

let me know guys. thanks.

Originally Posted by Ludikraut

1.) Change your plugs.
If that doesn't fix it, then

2.) fill up with a 50/50 mix of 93 octane and 100 octane to see if that fixes it. If it does, then there may be an issue with the tune, meaning that either your timing is too aggressive for pump gas, or you're running too lean (which can also be caused by a leak in your intake piping). Take it to AMS and have them look at it.

If the car still misfires with the better gas, then the next place I would look at is your ignition system (coils, spark plug wires). Again, I'd take it to AMS to have it checked out.

l8r)

Originally Posted by DynoFlash

Just so you know - a dyno is a tuning tool used to create a simulated controled environment for tuning and testing and quantify gains of losses

I think it is foolish to compare results from one dyno to another

This is why we compare the starting point to the ending point to see what the results of tuning are

With that said - I have a lot of dyno jet experience and I have no doubt that this dyno jet does read lower than others I have used

Jorge at P & L and also Paul told me it reads a bit on the low side and I felt it did after a day of tuning 8 cars on it the results were all low

AL