EvoIxRick

Currently running Full tbe/Intake/licp/Ported stock evo 9 turbo/Ported exhaust Mani/MAP dump tube/E85. Got
Tuned and Made 380whp/381wtw on 28Psi spike Holding 25 an tapering from there.We've got a "streets racing made safe event" down in florida in 2 days at the track where we can do 20/40/60 rolls on a drag strip and wanted to raise boost some for a couple runs. Maybe to to 30psi only 2lbs of a higher spike then I am running now...what do you guys think? If I did that and then on my way home ran it back down to 28 spike would my tune be off completely ? And I would need a retune is my question?

EvoIxRick

My tune would only be off running it to the 30psi right? When I run it back down to 28psi I should be fine and back on track?

impact blue

iTrader: (1)

Me personally I wouldn't raise boost after a tune I would tune while raising the boost making sure that things are accurate personally even if it is at just 1 psi. You may actually lose power doing that due to issues like heatsoak and other factors if your on a stock turbo. With a bigger turbo may be worse.

90zcrex

iTrader: (11)

Its not recommended, but It all depends on how the tune was set up. You may run really rich or maybe leaner when hitting higher loads as well as hitting timing values that were not optimized. You also may run into problems hitting fuel cut. If your tuner maxed out your fuel setup you may also run lean when upping the boost.

EvoIxRick

Running a FORGE boost controller.just ran it up 4 turns or clicks making it two psi higher....WHAT A DIFFERENCE! Ran it back down now.

egis

i was thinking the same,since i have 3 port i want to crank the wg actuator turn or two.

MRolla

iTrader: (34)

If your on stock rods your going to break something if your tuner was smart he set it so if you hit 30psi you hit boost cut and make no power at all. But its your car break it if that's what you want to do.

ronaldo9

iTrader: (2)

I wouldn't do it. Maybe you can go back to the tuner and you can get multiple maps setup for high boost and daily driving.

zenki-s13

iTrader: (2)

If your tune is rich enough you would probably be ok, but you never know. 30psi on that turbo is ALOT!

best bet is to ask your tuner personally. they will be able to tell you if your tune is safe for that or not

InoNothingMR

iTrader: (8)

Agreed with Zenki.

Definitely check with your tuner before running it like this. Putting a car not tuned for a 30psi load could definitely cause issues.

IMO its really not worth the risk of something breaking. Your call though!

llDemonll

iTrader: (21)

Your car, your motor. In the end you pay the bills for it.

It was probably set at 28psi for good reason. Do you know how to tune the car and have you seen the fuel and timing maps? If not, or if you don't understand them, don't touch it.

Same reason you wouldn't try and help in an operating room if you had no idea what you were doing

bbong

iTrader: (8)

You should never do that, period, you can lower, but never go above what you finished tuning at.

Shawnmsr

I'd leave your boost a lone and try cooling the intercooler and pipes before runs. If you're lucky it will help like a cool night and you don't f up your tune or car.

hiboost2.0

iTrader: (15)

I mean, it's your car and money but without datalogging it in my opinion is a HORRIBLE idea. If you're running on TEPHRA v7 then maybe because you will be able to tell when the car i knocking, but if not. Then your car could be knocking without you even knowing. When the car knocks over 5+ counts for a specified time it will pull back timing like no other, making the car really sluggish.

When you raise the boost it put the map in the ecu into a different load cell. Since your tuner only went up to 28psi more than likely what he did was make the load cells above 28psi safe by reducing timing and making it richer than usually in case of overboosting.