To4/t3 with standard computer??!?!?!?!

[Dawzey]

hey all just asking if u can run a to4/t3 off a standard computer with standard boost??

at first i was thinking that u could not but i have been told that it is possible!!

any thorghts would help.

cheers

[Guest INASNT]

if u r gonna spend all that $$ on a new turbo then invest a little more in the fuel system and aftermarket comp otherwise the $$ u spent of the turbo will be a waste of time coz u wouldnt be able to run it to its full capabilities. And i assume u already got a fmic for the new turbo?

[Al]

I have seen a car run BIG turbo without upgrade to his ecu (not sure about fuel system), it is now sitting in the mechanics w/shop with blown motor and turbo.

He was told to leave the car as it was until the wolf was plugged in. Not satisfied with the power (and knowing it's potential) this guy started stuffing around with boost, etc. Then decides to take it for a thrash with his mates. Motor blew and fired something into the exhaust turbine of his newly hi-flow/reconditioned ($2200, 450hp) turbo.

Moral of the story, invest in the support systems first or else you WILL end up spending more. Plus, a replacement ecu will give you power gains throught the whole rev. range. I know, i have one and was surpprised with the differance.

[Dawzey]

yeah the reason i asked is cos i can get a new to4/t3 turbo this week only for half price. but i do not have all the money to spend getting everything else right now.

i plan on getting a computer a bigger front mount boost controller all that but can i run that turbo at standard boost for the mean time.

and get everything else bit by bit???

my car is sitting in my workshop with no turbo.

and this turbo will bolt on.

so just to get the car running i need a turbo. so if i buy this one then next month get the comp(with standard boost still) then get a bigger front mount.

then dual satge boost.

would that work??

cheers

[Steve]

Dude, it should be alright BUT you must keep the boost down AND drive like an old mole.

If your turbo flows more air than the injectors can fuel, by by ringlands and possibly more = rebuild engine.

Boost is not so relevant as air flow, a bigger turbo will flow more air at the same boost pressure as a smaller turbo - everything else being equal. If you fit the turbo, try just using say 5psi, as 7psi is stock boost. I know that the stocker will flow alot more than that, but for example Whasisname is making 257rwkw with only 13psi (or there abouts). My car is at 89% (injector duty cycle) with .85bar on a stock turbo, so it is really important to keep the boost down until you know what it is doing. And whatever you do, drive conservatively.

The other mods you are planning are good, but with a bigger turbo you will probably need a bigger fuel pump and fuel pressure reg as well as a new clutch. This will become more apparent when you get the engine management on and put the car on a dyno to tune it.

[Dawzey]

thanks for the info.

at the mo all i can see is a big money pit...

but it is all worth it in the end.

cheers

[Al]

Nicely said STEVE!

If you do get the turbo, just throw the car on the dyno and keep the a/f ratios at a safe level (~12.2) ie: keep increasing boost, from 5psi or so, till max power is acheived WITH A SAFE A/F RATIO.

[Al]

Forgot to mention; keep an eye one the temp, due to the stock ic, and ensure the engine is not pinging/detonating

[Dawzey]

yeah sweet.

i can get this turbo or high flow my old turbo.

is high flowing really worth it or not??

cheers

[Al]

I beleive hi-flowing is worth it approx. $2200 and will be doing it on my car if i do not find a cheaper alternative, that isn't too laggy.

[greygirl1976]

who told you that?????????????? what mechanic?????????

[Al]

Originally posted by greygirl1976

who told you that?????????????? what mechanic?????????

What are you refering to?

[SilvaR33]

Hi flowing is a good way to go for street use. You can ran upto 18Psi without it being so laggy

As mentioned, you will need to upgrade fuel pump and change injectors or use fuel pressure regulator...don't forget a new ecu...very important!!!

[dabigbolf]

i think the term "hi flow " as mod to turbos is used a rough description.

Some places do hi flows and then other places do HIFLOWs.

meaning it all depends on what you want.

Different wheels, housings, and other stuff make up the final package. Thats why they vary in price so much. Can get them done for around $800, and then the good ones for $2200.

All depends on how much you want to pay, and what power you want it for.

one hi flow could produce "x" amount of power, and another hi flow could produce another amount.

good for street though.