turbo51

i have a turbo tc pushing 10psi with 2.25 exhaust system and when i get on it hard it shoots out a flame. does this happen to anyone else?

draxcaliber

wow, did you have an anti-lag system installed on your tc?

but anyway, that is bad and illegal, i think it means your igniting fuel too late, and it lighting when the exhaust valve is open and going through the exhaust manifold and turbo and such. it really isn't too good for you.

turbo51

well this is what happens.. i go through 1st and when i shift into 2second it will shoot out a flame

and i have turbonetics full system

draxcaliber

alright, my friend told me it is when you have alot of backpressure in your exhaust. are you still on stock exhaust? i guess that might be something that contributes.

ScionizedRide

at what RPM are you shifting? mine will do that same thing if im close to red lining it

tCb00b

iTrader: (1)

Simply put: Excess fuel in exhaust system + proper conditions to ignite = flame

ScionizedRide

my friend with an sti shoots out flames and pops with full 3" exhaust

turbo51

i have Agency Power exhaust system that is 2.25inch and my down pipe is a full 2.25inch

oh im deff. shifting at red line

SLIVER007

do you still have a cat?

ScionizedRide

If you get rid of your cats and run a straight pipe, you will shoot flames at high rpms

turbo51

i have no cat

ScionizedRide

well i guess it answered your question then.

turbo51

so if i have a cat it wont shoot out a flame?

ScionizedRide

and i hope you are not doing this on a stock engine...

SLIVER007

no, a cat will blow when you have a turbo on your car, thats why when you buy the turbonetics kit it says catless....Is there alot of flame coming out and for how long of a period?

turbo51

i have turbo system but thats it, nothing inside the motor

its like a pop and a little flame will come out...like a second

SLIVER007

Your fine...it's normal....Your just running a little rich....dont worry about it, happens to me every now and agian...but change your exhaust to a 3' inch, you will gain about 20 whp! www.turbomafia.com

mattvs

It's because your blow-off valve is venting to atmosphere.

It causes your engine to run disgustingly rich between shifts, and all of that unburnt fuel is igniting inside your exhaust.

Buy a valve that will recirculate and, providing there aren't any other problems with your car or tune, it should stop.

redrumtc

It is fine my car does it every now and then. Plus like everone has said change it to a 3in catless exst system u will gain more power plus spool up faster.

Bryan06tC

Turbonetics system does re-circ the BOV out of the box...... If it hasnt been tuned yet its definitely rich too... so just like everyone has commented before the answer is to get your set-up where it wont be overly rich ( tuning)