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How to tune a cosworth stage 3 ?

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Old 04-09-2007 | 09:18 AM
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Default How to tune a cosworth stage 3 ?

This is the question. How to tune it without any computer program or rolling test?
I live in Spain, and there is not any roller and nobody have any computer program to control the ECU of the car.
So how to do it???
Old 04-09-2007 | 11:17 AM
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Have you got a stage 3 chip and dark green injectors???

regards mark
Old 04-09-2007 | 04:40 PM
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-31 actuator, chip, greens(803's), will get you stage three.
Add a 4wd intercooler as a minimum.
tabetha
Old 04-09-2007 | 10:35 PM
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Originally Posted by tabetha
-31 actuator, chip, greens(803's), will get you stage three.
Add a 4wd intercooler as a minimum.
tabetha
All that stuff is already fitted, including the 4x4 intercooler.
But once fitted ( I did it myself at home ) the car dont have an smooth run.
When the engine is cold and I try to rev it up. it drowns.
If I keep the engine at 2000 rev it pops a little bit.
what boost should I set up??
how to set the engine properly?
Old 04-09-2007 | 10:46 PM
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You need to find a tuner to have it programmed properly really mate if the air/fuel is not set up right your engine could end up going bang
Old 04-09-2007 | 10:49 PM
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Originally Posted by antony215
You need to find a tuner to have it programmed properly really mate if the air/fuel is not set up right your engine could end up going bang
There is no tuner in Spain
Old 04-09-2007 | 10:53 PM
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There must be one over there somewhere the only other thing to do is book yourself a trip to the u.k that will work out cheaper than an engine rebuild

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Old 04-09-2007 | 10:56 PM
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there is no tuner dedicated to cosworth engines
Old 04-09-2007 | 11:01 PM
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Any tuner with a good rolling road and mapping equipment "should" be able to do it for you it dont need to be a cosworth specialist. It's not realy a D.I.Y job mate unless you have the equipment and the know how
Old 05-09-2007 | 05:43 AM
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They can be set up on a cheat, by tweaking fuel pressure.
What did you set the fuel pressure to ?, as it becomes a LOT more critical the larger flow the injectors.
I also forgot the 3 bar map sensor!!
You need to set the fuel pressure, then the CO which again is a lot more critical now for smooth running.
Depending on whose chip it is(?), will determine what settings to use as the map will have been written with these at a certain value.
Most(but NOT all) use std fuel pressure 3 bar plugged(vacuum) and about 3.5/7 unplugged(sealed pipe) vacuum.
Co is mostly set around 2.5% CO.
You could always put the std stuff back in, drive to a tuner here, and simply swap the bits over(outside unit), before the tune as it is easy stuff to do ?
tabetha
Old 05-09-2007 | 11:44 AM
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Originally Posted by tabetha
They can be set up on a cheat, by tweaking fuel pressure.
What did you set the fuel pressure to ?, as it becomes a LOT more critical the larger flow the injectors.
I also forgot the 3 bar map sensor!!
You need to set the fuel pressure, then the CO which again is a lot more critical now for smooth running.
Depending on whose chip it is(?), will determine what settings to use as the map will have been written with these at a certain value.
Most(but NOT all) use std fuel pressure 3 bar plugged(vacuum) and about 3.5/7 unplugged(sealed pipe) vacuum.
Co is mostly set around 2.5% CO.
You could always put the std stuff back in, drive to a tuner here, and simply swap the bits over(outside unit), before the tune as it is easy stuff to do ?
tabetha
Thanks Tabetha, the fuel pressure is at 3.0 bar ( it was, as I had the stage 2 with light green injectors ) the 3bar map sensor is in , the dark greens are in, and the chip is an Ahmed Bayjoo.
What is left to do is to set the CO.
By the way , what means Ahmed Bayjoo? is maybe the brand? or what
Old 05-09-2007 | 01:48 PM
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Ahmed Bayjoo is the name of a well known tuner in the UK.
Old 05-09-2007 | 01:58 PM
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Originally Posted by Daxcossie
Ahmed Bayjoo is the name of a well known tuner in the UK.
Thanks Daxcossie.
Old 18-09-2008 | 08:57 AM
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Buenas paisano!!

Yo tengo el mismo chip que tu con inyectores verdes y tal y tienes que regular la presion al ralenti a 3.5 bat con el tubito puesto y tal
A mi tambien me fallaba y petardeaba porque al principio lo deje en 3 pero fue subirla y listo
Por lo visto los chips de bayjoo van asi a 3.5bar regulado

Pueba a ver y nos cuentas
Salu2
Old 18-09-2008 | 09:22 AM
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I am certain there is a cosworth tuner in Spain, they buy from me.
I will look into it for you.
Old 18-09-2008 | 09:28 AM
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Here you go, www.ttdmotorsport.com
Old 18-09-2008 | 09:30 AM
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Originally Posted by tabetha
They can be set up on a cheat, by tweaking fuel pressure.
What did you set the fuel pressure to ?, as it becomes a LOT more critical the larger flow the injectors.
I also forgot the 3 bar map sensor!!
You need to set the fuel pressure, then the CO which again is a lot more critical now for smooth running.
Depending on whose chip it is(?), will determine what settings to use as the map will have been written with these at a certain value.
Most(but NOT all) use std fuel pressure 3 bar plugged(vacuum) and about 3.5/7 unplugged(sealed pipe) vacuum.
Co is mostly set around 2.5% CO.
You could always put the std stuff back in, drive to a tuner here, and simply swap the bits over(outside unit), before the tune as it is easy stuff to do ?
tabetha

How do you set the c0 to 2.5%?
Old 18-09-2008 | 09:35 AM
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Originally Posted by stevev6
How do you set the c0 to 2.5%?
You must have a co reader, and adjust it on ecu, p8 (Escort) don`t have this
Old 18-09-2008 | 03:16 PM
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Danrom, there is a guy that uses this forum from Spain, RAFA COSWORTH, maybe he can help you?

what turbo do you have? t3 or t34?

the chip will contain a map which determines the parameters your car must run, this will then give you smooth running

did you buy the chip 2nd hand? or did you buy it for your specification?
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