For those Die Hard T-25 users..

[slipstream808]

Heat soaking:

When the intercooler has hot air flowing through it, the metal heats up. Granted there is cold air on the outside flowing across its fins, but there comes a point (especially with the inefficiency of a t-25) that the hot air inside "wins" and heats the intercooler itself up. You don't get the temperature drop you'd like and well... that's that!!

 

[dr1ftx3]

I'd stay at 15 if I were you, because anything after that the stock sidemount will heatsoak as these gentlemen have told you. I drove for a year at 15 psi on stock fuel and everything was great. Don't expect much top end though =P

 

[TheRealist]

i was thinking 13 psi 15 tops

 

[dr1ftx3]

You should be fine at 15 till you upgrade. :thumbsup:

 

[Siral3x]

If you are planing to crank the boost to ~15PSI do it in increments of 2psi.
I think it's not safe to crank up the boost with no logging device, but that's just me!
15 psi should be ok , at night when is cooler outiside you can even do a 18 psi MAX recomended.
PS:Make sure your car is ready for it also: spark plugs, oil change..basic maintainance.

 

[Mitsubishified]

The normal people on here turn it up to around 15-16 psi when they don't have fuel mods and a sidemount. But every car is different, like my friends old talon. He turned it up to 18 psi on a stock fuel and a sidemount and had no nock. So basically get a datalogger for cheap from the classifieds and log what your car does to be safe.
Luke

ps: his car was freak, he left it at 18 psi and put the evo3 on there and still no nock and no heatsoak. He was stupid to get rid of it.

 

[olmytsi]

It's knock

 

[daren_p]

15-16 psi should be safe, you'll still be in its effiency range. Rewire your fuel pump if you haven't already.

 

[BlackRaptor]

If you put in a FMIC does that allow you to run a little higher PSI on stock fuel?

 

[daren_p]

If you put in a FMIC does that allow you to run a little higher PSI on stock fuel?

No, a FMIC won't allow you to run more boost if your fuel system is already maxed, if thats what your asking. Or are you asking if the stock fuel system will support more boost if you are running a FMIC? If so you should be able to turn the boost up a couple psi more if running a FMIC, I wouldn't recommend more then 18 as your gettin out of the t25's effiency range. The FMIC will help to cool the super heated t25 air abit more to help prevent knock as you will be out of its effiencey range at these higher boost levels.

 

[gsxtreme1987]

just turn it upto 20 psi. and let it die.

get a bigger one. JK

16 is the max. id say

 

[daren_p]

If I recall my IDC's were in the mid 80's as well at 25 lb/min

 

[slipstream808]

And that peak airflow was in the 4000 RPM range too.

 

[VETDRMS]

Well, the T25 is now on the shop floor and the EVO III is in. I hit 24lbs/min with the boost at 8psi.....

 

[TheRealist]

just turn it upto 20 psi. and let it die.

get a bigger one. JK

16 is the max. id say

.......................

 

[PieEyedPiper]

wow, thats good to know!

does it feel the same as the T-25 at that boost level?

EDIT: what in the hell happened to my poor thread!!

 

[TheRealist]

cmon there's has to be some t25 users boosting more than stock?

 

[VETDRMS]

PieEyedPiper: It is faster than the T25 at 12-14psi. I am going to turn the boost up a little tomorrow (12psi) and see how it does. I am still using the stock upper intercooler pipe and the stock air intake so there is some major room for improvement.

We'll see..

 

[danny_l_2005]

How can you guys see your IDC/ I thought we 2g's can see it on our loggers. Well I use Palm n Stein. Do you guys use Pocketlogger?

 

[daren_p]

How can you guys see your IDC/ I thought we 2g's can see it on our loggers. Well I use Palm n Stein. Do you guys use Pocketlogger?

DSMLink

TheRealist: What do you mean, stock is ~12-13 psi, 15-16 psi is more then stock & about the limit you can run on the tiny t25 before you just make hot air.

FYI the evoIII at 12-13 psi pulls much harder then my t25 did at 16 psi. In the lower rpms they make about the same flow numbers but from 5000 rpms + the evoIII keeps on pulling & making more lb/min where as the t25 falls flat on its face after about 4500 rpms.

Another reference @ 15-16psi on the t25, I saw mid 80's IDC. With the evoIII at 15 psi I saw 107% IDC.

 

[tstkl]

Link tells me 23-24lbs/min.

I can't go any higher because: turbo is on it's way out, I have boost leaks, I suck at tuning, stuff is probably broken, my DSM hates me.

for a second there I thought you might be on the stock boost gauge and I got really, REALLY scared....

t-25's are funny,

 

[DSMvroom]

Turn mbc all the way down: 12 psi.
1 Twist: 13 psi
2 Twists: 14 psi
3 Twists: 14 psi
4 Twists: 14 psi
Twist twist twist: 14 psi
Twist twist twist twist twist twist twist twist twist twist twist twist: 14 psi

No pushing it for me.

That was the same as mine, but I was able to get my t25 to about 16psi.

IIRC at 16psi, the most I saw out of my t25 was ~22-23lbs/min. It is also worthwhile to note that it would peak at 16psi and almost immediately begin falling down to 10-11psi by redline.