15psi on stock wastegate.

[JMiller]

For some reason my car is hitting 15psi on the stock wastegate i had a mbc hooked up but when i saw it was going to 15psi i took it out thinking the stock t25 wastegate is set to 10psi which is where i want it. So my question is can the cams i had installed be causing it to creep to 15 psi regardless of the wastegate being open. The cams are 272's(COMP). I want it at 10psi because i don't have any fuel or tuning upgrades yet. Just to clarify the wastegate is connected directly to the compressor housing.

 

[silver bullit]

How do you have it hooked up?

Search boost creep there are some topics about this.

 

[JMiller]

I have a hose going from the compressor housing on the turbo to the wastegate. Thats all.

 

[RadDsm]

You wont need any fuel upgrades with a t-25 at 15psi

 

[JMiller]

Even with all the extra air the cams are letting in.

 

[Twistaye]

You shouldn't have to worry about running out of fuel even with the cams on a T-25. I would definately suggest a wideband and a logger. Me and a buddy of mine installed my LC-1 over the past week and found out my car was running 18.1 at idle and around 9.2 in boost, turns out the previous owner took out the honeycombs out of the MAF. Some friends in havelock, NC hooked me up with some honeycombs, now she sits pretty at 14.5-14.8 at idle and around 10.5-11.2 during about 18psi of boost.. without any fuel upgrades, even though I have the fuel pump sitting on my passenger seat.. . Loving the LC-1 though, definately nice to know what's going on inside your engine.

[img=http://img509.imageshack.us/img509/9260/dsc00466mp7.th.jpg]

 

[JMiller]

I've got so many things to get for my car right know. But knowing that i don't have to worry about running to lean is good. The guy who put the cams in told me i could raise the boost when i put my FMIC on. How high can i go.

 

[914g63gsx]

i wouldn't start raising the boost at all till you can monitor whats going on, and get a logger of some type.

 

[vinnio]

Without any fuel upgrades... I would stick to 15psi. Any higher and you will most likely run out. Even 15 is kinda sketchy without any way to view or log data. But it should be fine.

 

[RadDsm]

Anything more than about 17psi on the T-25 is just blowing hot air. Time for an upgrade

 

[JMiller]

Yea, I'm saving up so i can get everything at the same time. All the stuff i got done to my car now were gifts.

 

[crimsondragon]

15 psi is fine. I overboosted to 22 psi before and didn't hit fuel cut. Have you tried readjusting your MBC? The wastegate should do a good job of keeping it at 10 psi if you want it there.

 

[JMiller]

I put the MBC back on yesterday and set it to 15 and it stays there now. I think the spring had gotten stuck, but after i took it apart and put it back together it worked fine. Thanks for all the help everyone.