Does my dyno chart look right?

[YoshiBishi]

I feel like my torque band drops pretty significantly and also isn't as close to my max HP as other dyno charts that I have seen. Perhaps the tuning is off?

2011-02-21 10.39.23.jpg

I am also getting misfires if I go WOT around 5k rpms. Sounds like I'm popping popcorn in my exhaust. Not sure if this is something broken, a bad tune, or the AFR isn't right.

It was hesitating and bucking as well. I disconnected the ECS and it stopped hesitating. Now, it seems to hesitate when I try to start it up. It sounds like the engine is bogged down. It always starts, but it acts like it is straining.

I have new plugs and wires
Walbro Pump and Hotwire kit
Krank Vents
Catch Can
3sxecutioner kit
Fuel Rail Adapter Kit
550cc Fuel Injectors
GM Maf-T with Dejon pipes
Ebay downpipe
3sx Single Pass radiator

I just got my 60k maintenance done as well as getting almost every hose and line replaced in the engine bay.

I've only owned the car for <500 miles, was bone stock when I purchased it in beginning of December and was running perfectly, ECS was working too!

When I got the downpipe put on, it started bellowing out smoke and I burned nearly 4 quarts of oil in <100 miles. The rear turbo failed which resulted in having to get all of these mods put on. Now the car runs horribly at WOT. Should have left her stock

[green-lantern]

It does look weird, did 3sx tune it?

[YoshiBishi]

Yea they did.

[thor'svr4]

shouldn’t hp and tq cross at 5252 rpm? other than that ive got no clue what a '3sxecutioner' should make or what its comparable too. If 3sx just tuned it, I would trust them to have done a good job. was it popping while on the dyno? or was it fine while dyno tuning and now its suddenly acting up?

[YoshiBishi]

I wasn't there for the dyno or tune, so I wouldn't know. Here are 2 from their website

I think that chart is skewed, they changed the scaling so it might look weird.. I'll have to get another one to check. That may be what is tricking me.

[green-lantern]

Yea they did.

If it's doing all these things then something isn't right. If they did all the work then they should fix the issue.

[i3igpete]

something is choking the airflow if the top end is drops off worse than their other dynos. you still on stock sidemounts? I forget who posted it but there was a log with pressure sensors before and after IC's, comparing the two. the stock sidemounts had something like 6-7psi pressure drop at the top end while FMIC had less than 1psi difference.

[lparrill]

Subscribing, I have 3sxecutioners on my car...

IIRC that car had a HUGE Pit-Road M intercooler, which makes quite a difference

Found those threads!!

http://www.3sxautomotive.com/Teixeira/
http://www.3si.org/forum/f1/3sxecuti...16awtq-492765/

[YoshiBishi]

Ah, good info, forgot that my stock SMIC would limit boost and power. Would getting a new FMIC fix the misfiring issue as well? I'll have to talk to them about it.

[green-lantern]

something is choking the airflow if the top end is drops off worse than their other dynos. you still on stock sidemounts? I forget who posted it but there was a log with pressure sensors before and after IC's, comparing the two. the stock sidemounts had something like 6-7psi pressure drop at the top end while FMIC had less than 1psi difference.

I remember that, couldn’t some of the drop be from cooling the air? If I remember right, that was being debated in that thread.