redturbomiata

iTrader: (5)

yesterday i hit my target boost 8psi, on a stock motor. i accidentally made a spool up to 12psi. surprisingly it ran good for the 2 seconds it was there no pinging detonation sounds made. i still have to install my 270cc injectors, but i was wondering how much more i can go before having to worry about it exploding. the setup consists of vortech fmu, msd boost retard box, stock ecu, greedy kit, ebay intercooler, and ebay bov.

Clos561

iTrader: (3)

not much more. i wouldnt be going over 8psi without a ms.

mazpr

iTrader: (1)

270cc injectors, pushed to the limit.

Do you have at least a wideband and intank Walbro 190 or 255 fuel pump?

When you say there was no damage, Did you do a compression test after that boost creep? and How do the spark plugs look?

I would do like Clos561, stay at 8 psi until the upgrades.

Those Greddy kits come with the typical T3/T4 or is it a smaller T25/28 turbocharger. Cause its not the same 8 psi from one to the other compressors.

redturbomiata

iTrader: (5)

the 270s arnt on the car yet. have a slightly better then oem fuel pump with a RRFPR. dont have the equipment to do a compression test. but it still runs just as good as it did before it happened. ik im a noob.

hustler

iTrader: (6)

You can run whatever MAP pressure that keeps you <=12:1 AFR and less than 250whp

FRT_Fun

iTrader: (19)

Do you have a wideband? Like hustler said, as long as you can maintain less than 12:1, your injectors are doing okay. But you really shouldn't go above 8psi (although psi depends on turbo).

mazpr

iTrader: (1)

If he has stock rods then there is a limit, 15 psi with a T3/T4 no more than that.

Stock cast pistons are good as there is a good tune, but the torque will bent the stock rods (if thats what you got).

A wideband is a must, and do install the wideband grounds like it states, the sensor itself not close to the downpipe, give around at least 3 feet from the turbo.

What sparkplugs are u using? gap?

Go NGK7 or NGK8, gap to .025.

The compression test will clearly tell if you have a bent rod. I had an engine with 3 bent rods, and two of them were bent and twisted, found out when I tore the engine from a blown oil pump (which I have stated in other threads).

I faithfully do compression tests everytime I start tuning, and sometimes do them every other or so oil change at least at the beginning.

(I know I blew a forged engine, but that is another story that will be decided on a small claims court due to a ghetto machine shop build)

It is a whole different ball game with a T3/T4 once you are hitting 12 to 15 psi, it is its sweet spot and power gains are insane. I still do not know if your Greddy kit includes such combo.

hornetball

iTrader: (4)

Stock Greddy uses a Mitsu TD04-16G.

redturbomiata

iTrader: (5)

what did they use that turbo on, wideband will be coming soon income permitting any good ones for a cheapish price , im using bosch platinum +4

Savington

iTrader: (31)

Why do people think widebands are optional?

FRT_Fun

iTrader: (19)

AEM OR Innovate Motorsports LC-1 or similar.

I personally like the AEM for my DD/Street fun car. But I know there are a lot of die hard Innovate fans here.

kaboshe

iTrader: (15)

what kind of turbo are you refering to, because, it's really not a limit at all.

i ran multiple t3t4(stage 1 t3, t3t4B,t3t4E Htrim, and a t3t4e 60-1 on a stock-internal BP with over 20 psi without bending anything, and that, for a couple of years@100+ drag runs a year.with 312whp i never encounter anyproblems at all, exept expoding a diff every week or so.(2006-2010 on a fwd mx-3 bp)

stock BP rods can take 20 psi, b6t rods can take much more(from my personal experience)

18psi

iTrader: (76)

mazpr is a ******* idiot and spreads utter bullshit on this forum with nearly every post.
Seriously. Noobs be warned.

There is no set limit for anything. It all varies.

OP is a lost cause if he hit 12psi on stock injectors and no wbo2

FRT_Fun

iTrader: (19)

WTF IS THIS ****.

I'm sure his BANDAID FUEL SYSTEM will go before his rods so why are we even mentioning them in this thread.?.?.? How long will the internals last at 100000:1 AFRs?

18psi

iTrader: (76)

lol exactly. the level of half *** ghetto riggedness has reached a new low

kaboshe

iTrader: (15)

with bandaids and no wideband, i wouldn't boost 1 psi fearing way more than rods

FRT_Fun

iTrader: (19)

OP, bandaids caaaaaaaaaaaan be okay, but you need a wideband... like.. yesterday.

That is step one in being safe.

Step two, as we all know, is a MS.

redturbomiata

iTrader: (5)

the car was ghetto when i got it, i bought in way over my head and have been trying to learn whats needed to do it right and how half assed the car was when i bought it. much apricated for the input. wideband should be purchased after payday (thursday) oh and got a compression test scheduled monday we will see what happens.

redturbomiata

iTrader: (5)

this work?

mazpr

iTrader: (1)

18 psi, each setup is completely different, but looking to what he has I would not go any further on boost. All following posts to yours state the same freakin genius.

Have you ever installed a bandaid? Have you ever used one? So shut the **** up as you dont know shyt what they can do...

I bent 3 rods, the pistons are fine, is it tuning, uh, Can post pics so you can go and release ur frustration at ChuKy ChyZe



Kaboshe, I dont want to start a ping pong game and hijack the thread, whatever lucky you...

It has been proven on clubprotege.com and in carrito.net (under Mazda) Puerto Rico forum that rods are the weak link.

I have been flamed many times, til to this day nobody in the Jacksonville area has shown up, burp!

You no what, there is no limit, crank that **** to 20 psi like Kaboshe says, have fun on the dragstrip, LOL.



Here, just follow the following settings to prevent any headaches.