Improved FD

no they aren't....they are outside the efficiency range, generating copious heat, which leads to auto-ignition

the mandatory BDC read-me thread http://forum.teamfc3s.org/showthread.php?t=50764

matty

k..been running 15psi for 4 yrs if not more. good tuning and 15psi is fine and i beat the **** out fo my car in cold hot warm whatever weather. after all these yrs of abuse my stock ORIGINAL motor still traps 118mph!!!! i dont see many stock twins stock motor cars that are trappin that high around the forum. i guess i am just lucky?

Improved FD

if you are running 93 pump, you're right on the edge

or your boost gauge is off....it happens

matty

93 octane. boost gauge and pfc measure 15psi. i dont know what to say...guys that run 15psi dont have problems if their setup is tuned right. Some guys even run more boost without problems. its just the typical forum hersay that says otherwise.

rynberg

Matty, general experience is that stock turbos running 15 psi do not last tens of thousands of miles. Your car is an exception to the rule, not the rule. The nice thing about the BNRs is that 15 psi is not running them hard, unlike the stockers. They will last longer and create less heat.

And 15-16 psi is really the practical limit on pump gas. Yes, a FEW have gotten away with running more, but they have obviously perfected their complete setup. There is very little room for error at those boost levels on pump gas. Some are willing to play there, but I'm not. Personally, I don't think people claiming 15+ psi on pump gas is OK is not being completely honest if they blew 3-4 motors perfecting their setup....

nocomply24

We are talking 15psi sequential....matty at 15 psi yours iam sure are not runing sequentially right? correct me if iam wrong.

Improved FD

what the heck difference does that make, assuming you are talking about stock turbos?

matty

yes sequentially. turbos and engine are stock.

rynberg, my thoughts are that those that have problems dont take the time to unsure that their car is 1) tuned properly and 2) set up correctly (with good ic and bigger injectors). i think the fd got its bad rap b/c several yrs back people didnt have as good as an understanding as they do today. Additionally, that purple pfs computer thats everyone ran i think wasnt up to the same par the power fc is.

The problem still exisits today b/c the fd is generaly owned by kids who just throw **** on their car and crank up the boost. From the day i bought my car with 15k miles on it, it has been meticulously maintained by kd rotary, myself (as i learned more about it) and tuned by steve kan. I bought the good upgrades like m2 cool airbox and m2 ic. not the cheapo stuff. all this stuff matters in my opinion.

And about 15plus psi.....older gents thats have been around and take care of their car get some good power. a few guys come to mind. i am not talking about the extreme drag racers either. IT annoys me when i read about guys fearing to push their stock setups....so i chime in alot on these threads but i bet its starting to annoy the nay sayers so i will slow down a bit.

Improved FD

are you running a high flow cat or stock?

matty

mp..no restrictions only rb dual tip. no creep. as a matter of fact it didnt creep when i was running the n1 dual either. i guess i am lucky with no creep either.

btw i have had the mp for 6 yrs.

Improved FD

all I can say is, consider yourself lucky.....many, many FD owners have had creep and/or killed engines at 15 psi on pump gas with stock turbos...Power FC or not

getting on here and telling other people to follow your path is dumb...boast to yourself

matty

whatever. plenty of guys do it. your just jealous.

Improved FD

if you consistently run 15 psi, which I don't believe, your turbos and/or engine will be history in a few years (or less)....count on it

I'm hardly jealous of your stock FD

matty

Are u reading my posts? OR are u calling me a liar?
i have posted thats its been 4 yrs or more of constant 15psi and the original stock engine runs awesome to this day and is able to beat equally as modded z06s and cobras.

I air my car out when i drive it too in all types of weather. The car has seen many many trips down the 1/4mile and has been to lime rock.

Jeeze...kind of funny that someone has a good running/ reliable fd and people call u a liar for it! You crack me up dude. Why not pat me on the back?

i was joking about the jealousy part. But maybe their is some reliability jealousy that i am sniffing. Just how many engines have u been thru?

what kind of traps are u running with your streetport and bnrs car? I bet its pretty close to what i am running. And thats pretty lame given how muhc more dough u have invested with your bnrs and street port. u wanna get nasty and call people liars well i dont mind playing that game and barking back.
i dont really care what a dyno says. so dont go showing me some bs dyno sheet.

Improved FD

yes

G's 3rd Gen

iTrader: (11)

Throw my story in here. Been running 15-16 psi on my set-up for 8000 miles and it cranks like the day we put together. For 3 1/2 years on the block. Weekend car. I guess it's in the tune?! Afr's are 11.3 or less all the time @ WOT. I do run a few gallons of 100 in w/ the 93 though. Not beating it on it stop light to stoplight either. I like spirited runs every now in then though.

GoodfellaFD3S

iTrader: (213)

I ran 15 psi on my stock twins (with my M2 large smic) for about a year/12k miles or so until the turbos started to blow smoke out the exhaust. They had about 90k on them when they died.

nocomply24

you can run 15 psi sequentially on stock twins? i thought you couldnt go over 14 psi or else you would be runing them parrallel?

GoodfellaFD3S

iTrader: (213)

Negative, that is extreme mis-information.

matty

honestly...u are a real idiot. i have better things to do with my time then sit on the internet and lie about how reliable or fast my car is. my car traps 118mph and i have beaten my life long friends headers, x-pipe, exhaust, and intake z06 and my other buddies cobra. you need to grow up. Again what is your car runnign with your bnrs and street port? how many engines have u gone thru in the 8 yrs of ownership?

rynberg

Guys, cease and desist. Thanks.

matty

alright i am done..just dont appreciate being called a liar. i guess its that hard to beleive that their is a reliable 7 outthere. some guys man........give the rest of us a bad name.

nocomply24

So damn i can get my stock twins going past 15 psi if done right? if i want to get 400 rwhp on pump can i do that with stock twins, or should i not bother and grab me some bnrs!?

SLOASFK

iTrader: (5)

no, anything in the 15-16 PSI or higher range is outside of the efficiency of the stock turbos. In other words, they start generating a lot of heat, don't produce more power and fail quickly.

You can get them to boost 16PSI sequentially, but it would be fruitless. Sequential setup has nothing to do with max boost.

Also, the BNRs ARE stock turbo housings with different internals. So they can be set up on the stock sequential system.

Improved FD

15 psi on stock twins with pump gas is rolling the dice....you might get lucky, you might not....it's not about bragging rights concerning who can get closest to the edge of the cliff without going off...is this jackass no. 3?

as g man said, throw some 100 octane in there for insurance, it's well worth it...I've gotten detonation at 16 psi with the BNRs stage 2s and PLENTY of fuel...thankfully I have 3 mm seals now