hi, i want to know if i can run 14psi on my stock turbo, fc3spro.com says that we can but i want to hear other peoples opinions. im going to put a fmic before i run 14 psi. i have all the bolt ons, only thing im missing is the fmic.

 

what about fuel setup..i hear alot of people say dont go over 12 but i think 14psi has been done by a bunch of guys

 

No way.

14 psi is way too much i blew 2 turbos doing that im telling you from experience. The maximum our turbos are good for is 12psi and even that is still slightly high. If you have an open exaust its even worse because the the turbo is actually spooling higher that designed due to the free flowing exaust.

If you want to go with a higher boost, first consider what you need to attain that boost level ie:controller, more fuel, FMIC, and a turbo that is designed for that boost level.

 

A "bunch of guys" also get 3" intake and exhausts, and don't port their wastgates. A "bunch of guys" also don't stuff rags into their engine when they remove their intake manifolds.

Does this mean other people should do the same? Ya know, I'm gonna have to say NO.

Reccomended: Do not run over 12psi on the stock turbo. Over 12psi gains you about 1-2hp per PSI, blows hot air, and shortens the life of the turbo. The stock intercooler is also vastly inefficient past 10-12psi. More heat = decreased turbo and engine life, and eventually decreases you're wallet thickness. Be safe.

 

thanks for the warnings, also i do have something to control the fuel i have a safc2. right now my mods are:

safc2
rb turbo back
turbosmart bov
turbosmart boost controller
walbro 225 fp
tid mod
running 11psi
fmic-( already on the way)

 

You need some 720cc+ secondaries before you even think about boosting 12psi with those mods...

 

Just get a BNR upgrade , you'll be happier..

 

why do i need 720cc, im already at 11psi whit no problems, i made 220whp on stock injectors at 11 psi so 12psi is not that far

 

What was the duty cycle on the injectors? Theyre probably maxed out.

You can run 14psi, but not for long.

 

i really don't remeber but i know that theyre not maxed out, ill have to ask my bro cause he was the one that tune it

 

How do you "know" they weren't maxed out? You can disregard the advice all you want, but don't come bitching when you pop the motor because your injectors got dirty... The duty cycle on the stock injectors will be close to MAX @ 12psi, and larger secondaries are recommended for anything over 10psi... Do whatever you want man...

So your bro tuned it? With only an SAFC and no wideband? And then he told you the injectors weren't maxed? Hmm I guess he's a freaking psychic then...

 

hey dumbass who the hell told you i didn't use a wideband, dont talk crap whithout asking, and the wideband is set at 10.8 and the duty injectors cycle was at 22% so why the hell are you saying that there maxed out when the limit is 50% in a safc, im not even half way there, so stop talking crap bro. bro when the rotarys in us beat the rotaries in PR then start talking whatever you want. now lets see what you have to say.

 

Since you're so smart, why are you asking stupid questions on an online forum?

22% @ 12psi

If you're running 12psi on stock injectors, you're a ticking time bomb... Go ahead blow it up real good... I'm gonna laugh my *** off you dipshit... I was trying to help your dumb ***...

 

the dumpass here is you, , you think you know everything about rotaries huh, well my friend youre wrong, come here to pr one day and ask at how much psi people run on their stock injectors and youre gonna be freaking amazed, my TII is been like these for quite a while now my friend and you now what theirs no problem whit it and i have done a lot wot, so that said, i think the dumbass here is you, go put your 720 injectors in your car whit your stock turbo. dumbass thinks he knows everything, give me a break man. 10 psi on stock turbo and 720cc injectors= waste of money. and my 22% duty cycle i can get you proof so you can eat that bs flag lol.

 

Go ahead get proof... I'll also give you my address so you can send me a piece of your apex seal in the mail when you lean it out and blow it up... I'll make a necklace out of it...

 

lol youre on my friend, i just wish i could see your dumbass expresion when you see that my duty cycle is at 22% at 12 psi and the car runs flawlessly= priceless

 

Okay, since this whole thread was started on the premise on what I said, here's my 2 cents on it...

I've run 14psi on the stock turbo.
I used to do this for YEARS with no ill effects.
Now, it probably shortened turbo life, but I wasn't looking for a 100k mile out of the turbo in the first place, so be warned.

Once I turned the EBC up to 17psi, I blew turbos left and right.
When they failed, they used to shatter the carbon compressor seal.
When I turned the boost back to 14psi, the turbo stayed together.

DUE TO MY EXPERIENCE, THE STOCK TURBOS ARE FINE UP TO 14PSI.

I DO NOT RECOMMEND RUNNING MORE THAN 14PSI ON THE STOCK TURBO OR A HYBRID WITH THE STOCK CHRA.

Although the FMIC sounds like a good idea, you might end up overspinning the stock turbo just to keep boost up.
The turbo has to spin faster (i.e. more boost) just to fill up all the extra space from the pipes and way-bigger IC core.
So, you're stuck in a predictament.

Bottom line?
Set a goal on how much power you looking for.
Work backward.
Hybrids are a good idea to keep costs down, get mild power gains, and keep the boost down.

ALTHOUGH I'VE RUN 14PSI WITH GOOD SUCCESS, I DO NOT RECOMMEND IT.
In fact, I recommend keeping the stock turbo to 10psi to 12psi max, just to keep things happy (with the stock TMIC).

Now, about pulsewidths...
I used to run a small T5 / T6 compressor upgrade, and this hit 90%+ pulsewidths on the stock 4 x 550's at 14psi.
Jacking down the safety margin to the typical 85%, the stock turbo will easily hit this at 14psi.
People are right when they say be careful with your fuel injectors.
You will need larger fuel injectors just to keep the pulsewidths under 85%, period.

TO ALL THE JACKASSES WHO ARE OFFERING OPINIONS WITH NO FIRST HAND EXPERIENCE - STFU.


-Ted

 

With a microtech instaid of the fcd, a free exhaust, intake, and a bov, 12psi-14 should be safe I'd say. The microtech would allow for the correct timing on the motor right which an fcd does not, right? Good luck, Dustin.

 

You mean the SAFC was set to a 22% increase??? I don't know, so I ask.

 

22% would almost definately be the increase. As per Reted's post and other sources I've seen, they are way more than 22% at this level or even at stock boost.

 

Hey i dont mean to add to the fire in here but i just want to mention also from experience that puerto ricans really have a sixth sense when it comes to rotaries. I hear that in puerto rico they drop rotaries into almost anything and make them run crazy numbers in the 1/4 miles.
Just my 2 pennies on that one. hehe

 

I can easily see a 22% increase cause just 22% duty cycle seems WAY off. even more so saying that it is 22% of the maximum 50% that the SAFC will allow.

also don't SAFC only allow 50% enrichment? which would mean you can increase what the stock computer would try to inject by 50% but that doesn't mean your duty cycle is only 50%.



think somebody needs to learn a little more about the SAFC and the duty cycle.

 

I'm good friends with a few Puerto Ricans, and there's one thing I've learned... People in PR aren't out to make the most power on minimal mods... All the Ricans I know like to run crazy overdone setups with twin inline pumps, 4 1600cc injectors, the biggest porting imaginable, etc...

 

ok bro heres what i have, im not trying to beggin a fight here, if im wrong then correct me i have no problem with that, when you put the safc the stock setting is at 0% and you can increase or decrease that by +50/-50%. welll at 7600rpms my safc is set at +22%. in the earlier rpms is lower but the highest is at +22% that is at 7600rpms. the wideband was set at 10.8 and i think it was a great result.

 

Where the SAFC is maxed out has no correlation to your injector pulsewidths... Your SAFC may only be at 22% correction where your injectors are pushing 85%... You upgrade the secondaries, and you have alot more room to play around... That's what I was getting at...