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Tried that too. It starts then falls and almost stalls then settles at the higher rpm. Basically the same just idles higher once it catches.

made all the suggested changes. It made a difference in the cold start, which is basically perfect now. But it still does the same thing on hot start. Idles up then falls down and then catches.
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tried that. Didn't change at all. Same issue

any ideas?

Put it back to stock same thing. The first time I start it after a flash I need to get it to idle with my foot then it learns and ever start after it is one or 2 flares then it catches.

Got the idle and drivability pretty good now but on startup it revs up to almost 2000 then almost dies then revs up again and finally catches. Any ideas?

05 300c 5.7 small cam and edelbrock intake

Just experienced this today on the dyno. Anything over 4.75 tps volts at wot will cause it to go stoich at 4200 rpm. It needs to be over 4.3 but under 4.7 at wot.

Here's a video of the runs. The last pass is the one where i figured out the timing to pull some power out on the launch and did a 1.42 60 foot. Think next time out I can get her into the 1.3s.

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Im using an aem truboost. No way to do gear based boost that I know of.

Don't know how much that would help anyway. It was breaking the tires loose with only a few pounds of boost on spool up. ...

Ok so had some runs yesterday and got the 60 foot down to a 1.42 just by taking around 4 degrees of timing out of the launch and spool area.
The max throttle settings didn't really do much if...

Leave ses enable on and mil off. Also make sure your rear O2 sensor are not disabled. This will set all monitors except cat assuming all other systems are functioning.

If you have also deleted...

So since the rpm never goes under 5000 after first gear should I just pull timing from 5000 rpm down and 100 map and up?

Boostjunk, thank you for that detailed explanation.

2006 charger, 426 manley stroker, thitek heads, comp cam, Custom twin turbo kit with twin turbonetics benita 78mm. Running mt 275 pro radial
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Any ideas on how I can soften my launch so I dont keep blowing my tires away. I haven't gotten lower than a 1.54 60 launching at 2700 on a 2 step and trans brake. Anything higher and it spins or...

About 50% of the time when I log my runs some parameters on the logger do not update / read correctly. Like in this run the rpm and accel pedal among other things don't read correct. I have a bunch...

Here's the dyno graph.

Seems to work good.
Going to try and go to atco on wed night and get some runs in

So it turns out it was having some sort of ignition issue. Put new plugs gapped @28 and 8 new denso coils and the same tune that put down 750hp 3 weeks ago did 864 and no audible missing. I think it...

My friend did that. No idea why though. I dont have any traction issue and the 2 step works fine. Probably just going to put it back.

Is there any reason why sonic airflow and total airflow are so...

Also any reason why the throttle body doesn't fully open until about 27mph?

I gapped them at 28. Ltr7ix
Stage 6 2 step wired into the tranzformer launch control. Only launching at about 2500 right now just to get some test runs in.

No white specs. Changed them last week. If i can fix a blown break hose I'm going to make some more runs sounday.

93 octane.
I think it may be blow out. I remember hearing like a miss here and there im top gear. Has fresh plugs. Might just be a funky coil. I'll just replace all of them and see.
I think the...

I have an older log with some of that info from a month ago. Car wasn't running as well and was shifting later so wasn't in forth as long up top.

Also was on wastegate boost. no boost controller.

426 ci, thitek stage 2 heads, custom cam around 230 @050, 90mm tb, 1300 id injectors, custom turbo kit with twin 78mm turbonetics Benita turbos. Paramount super pro trans and converter.