Ok, i just built my first turbo kit on a D15b7. T3 super 60 and about 4-6 psi. Well, i'm trying to learn as much as i can about turbos, so here goes. I was running home and i cranked the boost up to around 5 psi or so. I have a FMU and that ain't the best managment, but i need to start somewhere. When i was getting around 4,000 rpm i could feel the car hesitate like it didn't want to go. What could it be? I have no O2 sensor because i didn't put one in yet, so i really want to know. I think it may be not enough fuel pressure. I running stock injectors and bottom line stuff. Also i have a valve on top of my FMU where the vac line goes that screws in and out, what is this for. Thanks!

 

Jesus, I hope you're kidding. First off, you need an o2 sensor. Second, you need to properly instal your shitty *** FMU before you fry your pistons, if you haven't already.

What FMU do you have?

http://neptune.spacebears.com/cars/stories/scfmu.html
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I have a 12:1 vortech FMU, what is the **** for on top it screws in and out

 

I plan on putting an O2 sensor in tommorow, when my friend makes my exhaust. Hey, i'm trying to learn as much as i can, teach me all you can people to properly run what i have for now.

 

Click the link I posted.
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Ok, i hooked it up the way it should, I have both lines and thr vac. hooked up, but it doesn't say anything about a valve by the vac. line. What is that for, does anyone know?

 

read this link...

http://www.cse.uconn.edu/~yelevich/turbo/turbo.html

 

great site, i used this site for my turbo kit install. Guys i have the basics down, i set my turbo kit up correctly, i'm just trying to learn some tuning basics and why turbos do the things they do when they cause your engine to act funny.

 

You missed the part where you were supposed to hook the vac line to the FMU, which is a fatal mistake.

I wasn't aware that Vortech had an adjustable FMU, but if they do that **** is to adjust the ratio. You should take a look at your plugs after it bogs/cuts out. I bet they are super white and dry. Your pistons hate you.
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what do you mean