terribleone

alright well first of all its a fuly built engine, running only 12-13 pounds off the wastegate (12lb srping, no boost controller) when im really getting on it on the highway, it always sputters at fully boost. MY guess is that i need a bigger spring maybe 20lb?? and hook up my boost controller. ALSO this is a little worse, again when im getting on it hard, the dip stick pops out (only the yellow parts comes out but you can see a little bit of the actual dipstick) and a little bit of oil sprays out. MY guess is that i need to replace the o-rings or get a new dip stick??? If anybody has answers, i would loveee to know! Thanks!!!

NiSmO Knight

iTrader: (1)

Is the motor dialed in?

Is the sputtering from the waste gate or motor/turbo?

And the part about the dip stick kinda worries me a little... you might want to refrain from driving it hard until its figured out... and this is the first time Ive heard of the dip stick popping out. Does it have resistance when you pull it out normally?

terribleone

yea its dialed, and im pretty sure its just cuz theres only a 12lb srping and no boost controller. but everybody told me and the local tuning shop said its probably the PVC valve. so i looked and the line from the catch can to the PVC valve wasnt connected and frayed at the end so i got some new line so im changing that today. but everybody said that should defently fix it

NiSmO Knight

iTrader: (1)

Ah, yeah some of the smallest things can make things look bad in a big way LOL

terribleone

did a compression test and from front to rear. 150,150,150,130

NiSmO Knight

iTrader: (1)

I'd say that is pretty good if you ask me.

Sorry, its been years since I did anything with compression testing... forgot everything about it LOL

But the numbers look good.

Alexl08

your sputtering problem could be one of three your plugs or your coils or a dirty injector/ bad change your plugs see what happens. If not that your coils could be breaking down on high boost what this means is its not putting out enough volts to support your engines needs to detonate the fuel.