Alpha-7

iTrader: (1)

Ok on my profec b I have the boost on low.I ran this lancer and i had no problem with the boost but when i put it into High boost about 5100 rpms when the transition took place the car just fell flat on its face.It felt like someone rear ended me.But it only happens on high boost.
Guys any suggestions on what it could be.Either related to bad spark plugs or something.

Thanks

the_glass_man

iTrader: (2)

Mods, ECU, tuned?
The plugs are good place to start looking.

Alpha-7

iTrader: (1)

power fc every bolt on with a mild street ported motor.Yes i just got a tuned map put in by Jason...

pm'd ya also..

the_glass_man

iTrader: (2)

PM'd you back.
You're not hitting boost or fuel cut are you, just some serious hesitation?
Does your boost creep past the settings in the PFC?
You might want to upgrade your injectors!

weaklink

sounds like fuel cut to me

Alpha-7

iTrader: (1)

Like when i am in low boost setting nothing is wrong at all it is perfect.But when i put it into high boost on the profec b Around 5100 rpms Somewhere around there it just stopped completely the car fell flat on its face...then it drives normal...Could it possoble be tuned with a map with lower boost...or could the plugs have detonated...

skotx

What he said. Make sure your PFC boost setting is above your profec's high boost setting, with some extra headroom to allow for creep.

Alpha-7

iTrader: (1)

so u mean just turn the secondary and primary on the Power fc settings higher than 1.00

jd93rx7

I had a problem whenever the second turbo spooled it would fall flat on its face.

The fuel pressure was erratic and it needed a fuel pump.

Alpha-7

iTrader: (1)

i have a upgraded fuel pump already....It never did this until i just got the new map..My car before was tuned really rich

rynberg

Yes, you have to have the PFC boost settings set to atleast as high boost as you are running with your boost controller. Otherwise, the PFC will fuel-cut.

Also, what are your injector duty cycles? Have you had the PFC tuned? Ran it on a dyno to verify proper A/F ratios?

Alpha-7

iTrader: (1)

i talked to jason and he said its not fuel cut and said to check the setings on the pfc..I put them all up to 1.25 on the pfc.So tomorrow I will go try it out then.

thanks guys...

93BlackFD

sounds like an injector transition problem, are you running the correct settings for your injectors? are you SURE?

ZoomZoom

iTrader: (2)

Your hitting it at your Torque peak. Might be fuel. Might be clutch slipping. Mine felt that way at same RPMS and believe it to be clutch related in that case. The power comes back slightly after the peak. A Map that isnt specific to your car is great for baseline but still needs to be tuned on the street with a wideband or a dyno. With Datalogic software. Good luck. Also if your in NJ your not too far from Demtrios at Reactive racing. He tuned my car and it pulls harder than ever.