martysmartie

iTrader: (1)

Hi,

At Stage 3 with a T34 is it always the case to go to grey injectors as well or is going with 803's normal practice or will these be on the limit?

Also with T34 is 2WD intercooler ok, Ive heard different answers, the latest saying that the standard intercooler is fine?

Also if you have a stage 3 chip does this mean it is mapped for green or grey injectors I guess it is dependant on what it's been mapped for?

Kind regards,

Martin.

JTECH James

iTrader: (13)

all of your questions are software dependant tbh,

the greens can fuel up to around 350bhp, anymore than that you need more fuel..

the intercooler can be ok, the only limiting factor of them is charge temp...if your charge temps go to high the ecu will retard ign and you will lose power, so you need to measure charge temp to determine if yours is ok...

any chip can be speced to run any injectors, so you need to ask whoever wrote the softeware what it should run on

tabetha

As above but injectors can vary a lot, my 803's were at 80% at 300bhp, so don't assume all will be ok, saying that I have seen a set at 377bhp, but not sure on the pressure.
tabetha

orion turbo

thats why there are blues in between greens and grey injectors so i isnt so must of a cc jump

tabetha

That's not at all the reason for the existence of blues.
It just happens to be good luck/fortune, a boggo std sapphy would/will run perfectly on greys, if mapped on greys.
tabetha

joffy

iTrader: (1)

or change to siemens

CossieRich

iTrader: (1)

Tyical stage 3 boost is 1.5/1.6 bar. Try asking a 2wd cooler to cool that air from a t34 and it cant do it properly. Should get a decent intercool imo

KSA-Cossie

iTrader: (4)

Ditto.

Composite@XsportRacing

great advice the intercooler is often over looked

a lot better than maxing 803s out and a nice injector to map to

fuzzy

...so better is greys for 340ish bhp with a chip to match as they wont be running at the limit as greens would be?

tabetha

Anyone care to prove why siemens are supposedly better.
tabetha

pacwest

Injector pattern. I run them on my 2.3 turbo. 6 disc orifices. Think garden hose then think fireman's hose.

Cragrat

iTrader: (4)

ding dong

LHD220Turbo

iTrader: (4)

greys can be mapped just as well as any other injector; i just prefer to use siemens; its newer technology and a better spray pattern.

bosch's injectors arent made any longer as far as i'm aware

Composite@XsportRacing

exactly plus they respond better than the older bosch injector

pacwest

Some guys on turboford.org claim the injector pulsewidth at higher duty cycles are better handled by siemens. You can max them with a better safety net apparently.

155lee

iTrader: (10)

i have greens and when i had the car on the rr it made 335bhp atw,that was the injectors maxed.

tabetha

Notice there has been yet again no PROOF, just because msd and others etc sell them does not mean they are better, hey hang on maybe if the bosch aren't made any more that might be the reason they sell them and the same reason they are suddenly "the best".
tabetha

Twellsie

iTrader: (1)

i run greys on mine and never had a problem, starts first click of the key, even in the cold

Jay,

iTrader: (4)

erm i dont give a flying fuck what others say ! try running a oscilloscope on them and compare the coils dont react the same and the difference is night and day lol

Jay,

iTrader: (4)

you wont as certain tuners can control greys to a good extent

JTECH James

iTrader: (13)

so do you think if they were to start producing again, they wouldnt change the old design?

or would they improve the design and bring them into this century ?

tabetha

So Jtech are YOU suggesting that everybody changes their injectors now just because they are more modern ?, even though they will have followed the advice at the time, on a car running perfectly well ?
Or does this yet again show a limitation of the std ecu ?
Are you sugesting no car can be mapped on greys properly even with lowish cossie bhp ?
The end result is what counts, not what a machine of any sort says is correct, the RESULT will speak for itself.
And yet again despite some people losing thier dummies there still is no PROOF.
I'm quite reasonable, show me proof and I will be ther first to say yes they are better, I won't hold my breath though.
This is totally pointless unless back to back testing is done.
tabetha

JTECH James

iTrader: (13)

im not suggesting anything im asking a question....

do YOU think bosch would change the design of them if they were made today?


as for your comments, well surely this is a similar situation to YOU advising everyone to change ecus because they are old on almost every post of yours i read?

stuhas asked you to prove several things on various threads on here about ecus, and you have never replied with any proof at all....do you want me to find the threads for you so you can supply some?

KSA-Cossie

iTrader: (4)

Pretty sure stu put forward a great explanation on a previous post where you poo hood siemens blacks but don't remember you answering ??

westus1

iTrader: (6)

well tbh i've never done any back to back testing or anything like that
but all the big tuners are now saying that the blacks are better for fueling low down and have a better spray pattern, i dont have the facility's to check any of these things so i've got to believe what i hear,
to me it just makes sence that injectors have evolved and the more modern seimens are gonna be better than the bosch 1's that were around 20 odd years ago

Rax

iTrader: (1)

Not getting involved in this argument but when I went to speak to Tony he advised for what I wanted,to use 55lb Siemens blacks over geys as new technology.Surely there must be something in it if most of the major tuners are advising this.I was aiming for 400bhp.

Eagle

iTrader: (2)

so..
greens are good for stage 3 .. anything over that then siemens are supposedly more controlable. or is that easier to use ... hmmmmmm
and anyone who thinks a normal 2wd can cool air on stage 3 has never fitted a bigger intercooler.. the difference is quite notiable
after listening to many views then i would go siemens ver greys, if i ever had the need .... oh and what about costs ?

LHD220Turbo

iTrader: (4)

they are more expensive; but i imported mine from the US

http://www.fiveomotorsport.com/

actually i bought 8 injectors; sold 4 on ebay and kept 4 for myself; the 4 i sold almost covered the cost of my own. easy