Noob question I know but since alot of people let their tuner do all the work I would like to know and I'm sure others will learn from it. I'm currently at 25-30psi but would like to raise it but how do I know when to stop before I blow a HG or something worse? How is it done? Keep low timing and keep raising the psi so when/if something happened it wouldn't be anything serious? I'm sure I would be fine under 37psi with a forged shortblock etc but just curious on the answer, doing a search wouldn't answer my exact question.
Thanks

 

Knock is not your friend.

if you are on stock bottom end.....anything over 450 lbs of TQ is DEF> not your friend.

 

First off before doing this your gonna need a wideband and a tactrix cable to log.I would check to see if you get knock and if not keep adding boost till you find a sweet spot you should also pay attention to load.

 

you can't just add boost and be okay unless your tuner has tuned the load cells you will be hitting with the cranked up boost... you have to log and know what is going on...

 

That answers one of my questions, I was told mine was tuned around 37psi but it's nowhere near that, unless my gauge is off which my vacuum is reading 7 instead of the actual 15ish so maybe it really is at 37ish psi and the gauge is whack. unless the vacuum issue is a line problem since I checked it with a diff gauge at a diff reference point.

I do have a AEM wideband but need to get a new sensor since it's giving whacky readings. I plan on getting Evoscan and a tactrix cable just not sure which one I should get and waiting to pay all my bills till I order one.

Once I get it all straightened out with new wideband and do a boost leak test I'm bringing it to Ivey for him to look over the tune from a previous tuner and so I know what boost I can go up too, and really curious what shes putting out since the number I was told it made seems way too high.

 

When your motor goes kaboom that was too much, your welcome for the technical answer :thumbsup:

 

LOL.
Dude seriously you sound a little green around FI cars. Don't do anything on your own. If you are on stock turbo leave it alone and bring it to a reputable tuner. Or hope on the ECUFlash forum and educate yourself....if you're brave you can tune yourself but its not for the meek. The info is out there and there are plenty of people here who tune themselves

 

boost is not an indicator of how close the engine is to blowing up. you can snap forged parts in half at stock boost levels and zou can safely hit 36`psi on stock engine. Its more complicated than the safe boost level way of thinking.

You can also do a search, That question been asked at least 9,834 times

 

This is all u need to know. IMO just have a good tuner tune the car, and read up on this in othern threads.

 

One thing to add... even if you are able to log the car, you kinda have to "feel" what the car is doing and how it is reacting while dialing it in or you can twist some stuff up real quick as well... Tuning is not as easy as reading a datalog and adjusting a map....

 

Your getting your hopes up ..Funny how so many people on here have some many issues ones that are not even heard of due to them thinking their mechanics and having to fix other issues caused by them..Do yourself a favor and take a to a real tuner and get it done the right way before your car goes kaboom.

 

I'd rather run more timing and lower boost, boost isnt the only thing that makes power

 

Different set ups prefer different tuning methods... my car likes boost more so than timing...

 

Mine to freddie but I try to have a balance of the two.To much of either is bad.

 

Ok I should have reworded what I wrote and said it more clearly, in the first post I asked the question and said I wanted to know the answer because I was curious, not because "I" plan on cranking up my boost to see how short my motor lasts and that in the future I wanted to raise the boost but meaning I would let a tuner do it when the time came till I got more comfortable with it....I already posted once I get some things straightened out (boost/exhaust leaks) I'm going to have Sean Ivey tune it. I'm totally Not new with FI engines, but mainly with tuning a newer turboed car. I've tuned my 87 foxbody with a h/c/i but that's a diff story.

and for the few that mentioned stock parts I have my parts in my sig, not a stock bottom end and not a stock turbo. It's a forged shortblock and FP black already over 500hp