turning up boost on rst
12 PSI is no problem, shorten the rod between the actuator and wastegate. You'll see it if you lie on you back looking up at the turbo. Try shorten it a turn or a couple of turns. You must have a boost gauge.
You need a 10mm Spanner, a large Cardboard box and an 'I'm a hero' badge to wear just incase you are successful.
Seriously, leave it to the experts. Or, gamble with as much as you can afford to lose.
Seriously, leave it to the experts. Or, gamble with as much as you can afford to lose.
Originally Posted by Rallyesport
12 PSI is no problem, shorten the rod between the actuator and wastegate. You'll see it if you lie on you back looking up at the turbo. Try shorten it a turn or a couple of turns. You must have a boost gauge.
do you think thats sound advice mate?,1.5 times boost increase without fuelling to match,you reckon this would last?
a boost gauge isn't gonna stop it blowin up
Trending Topics
Car is set up for 7 psi? That is standard, the fuel system will handle 12 psi, no stress. There is no problem setting the boost yourself, but you need a boost gauge to check the setting.
Haven't any of you guys done something on your cars? Do you all send the car away to a garage to adjust the boost slightly? You sound like a bunch of newbies.
Haven't any of you guys done something on your cars? Do you all send the car away to a garage to adjust the boost slightly? You sound like a bunch of newbies.
There is no normal way to increase the fueling on an rst. The system is very simple. There is no need for increasing the fueling by using the fuel mod which alters the base pressure by turning the screw on the back of the electro magnetic fuel pressure regulator. The KE-Jet unit will fuel more on 12 PSI, because the paddle will go deeper beacuse of the greater air flow. The only thing you will have to do if you want to boost more than 12 psi is to change the chip, then you can go to 14.5 psi without out doing anything else. Please don't argue this, it will only show you take your car to the garage to change your spark plugs or light bulbs.
Rallyesport.....
At least its thanks to you that RST's become rarer and therefore increase in value. I am now going to enlighten you to something that will make your sarcastic opinions look rather silly.
It is no lie that RST's are getting older now and it is also no lie that almost EVERY RST that we tune has either faulty Fuel Metering Head, Throttle Position Sensor or Fuel Pump. Some are lucky to have issue's with all 3.
If the Throttle Position Sensor is not working correctly, the Fuel enrichment will simply not work. We have seen cars running 15psi or more with NO fuel enrichment.
In the case of our friend here with his 7psi car, if the enrichment isn't working then it might just survive at 7psi, but 12psi might just be enough to tip it over the edge, reducing it to a Molten mess.
When we carry out a full-tune, for which we charge Ł94, we will test the Fuel Pump (using our Ł6000 Sun Modis, which measures motor Waveform's). We can tell the running speed of the Pump and how 'cleanly' it is running. We can also check the the TPS is triggering Fuel Enrichment. We also have checks that we carry out on the Metering Head. Once we are happy with these things, we connect our Ł1000 MoTeC Lamba Meter and high-spec Boost Gauge and do a full fuelling check on the road.
As I said, Gamble with as much as you can afford to lose. In this case, the gamble would cost Ł80 and could safeguard your engine. Raising the boost is in itself a relatively simple task, but running the raised boost level safely is far more complicated.
At least its thanks to you that RST's become rarer and therefore increase in value. I am now going to enlighten you to something that will make your sarcastic opinions look rather silly.
It is no lie that RST's are getting older now and it is also no lie that almost EVERY RST that we tune has either faulty Fuel Metering Head, Throttle Position Sensor or Fuel Pump. Some are lucky to have issue's with all 3.
If the Throttle Position Sensor is not working correctly, the Fuel enrichment will simply not work. We have seen cars running 15psi or more with NO fuel enrichment.
In the case of our friend here with his 7psi car, if the enrichment isn't working then it might just survive at 7psi, but 12psi might just be enough to tip it over the edge, reducing it to a Molten mess.
When we carry out a full-tune, for which we charge Ł94, we will test the Fuel Pump (using our Ł6000 Sun Modis, which measures motor Waveform's). We can tell the running speed of the Pump and how 'cleanly' it is running. We can also check the the TPS is triggering Fuel Enrichment. We also have checks that we carry out on the Metering Head. Once we are happy with these things, we connect our Ł1000 MoTeC Lamba Meter and high-spec Boost Gauge and do a full fuelling check on the road.
As I said, Gamble with as much as you can afford to lose. In this case, the gamble would cost Ł80 and could safeguard your engine. Raising the boost is in itself a relatively simple task, but running the raised boost level safely is far more complicated.
Originally Posted by Rallyesport
I hadn't expected anything else from a garage owner..
nick8saff, if your car works spotless with no hickups or anything else, you can with no worries set the boost to 12 psi and save your 94 pounds.
nick8saff, if your car works spotless with no hickups or anything else, you can with no worries set the boost to 12 psi and save your 94 pounds.
im sorry but your knowledge of rs turbo's isn't so good and you my friend are lookin like the newbie,i for one would not touch the boost level unless its gettin checked proper to see if theres enough fuel there,maybe 15 year back when they were new you could maybe get away with this but the earliest mfi systems are 15year old,like most parts this shows wear and tear and doesn't perform like it did back then,for Ł94 its well worth the money,if i had to say to you i could get another say 10-15bhp safely for Ł94 you would do it wouldn't you,anyway how do you know this guys cars not runnin like shit just now and another 5psi would end in melted pistons,you dont,thats why my advice is to get it seen to by a specialist not someone sittin behind a keyboard with a haynes manual

and my mate bought a rs turbo a couple of weeks back and was told this was A ok,we drove it home from liverpool with no hiccups and its was flyin,started first turn,no trouble at all,the guy said it had the boost turned down to 10 psi but was runnin 18psi,if we took his advice of turning it back up it would have melted as a rollin road proved the very next week,it was runnin very lean in 4th and 5th gear due to faulty fuel ecu,for Ł60 it saved him a 1k rebuild,well worth it imo
PassionFords Creator
iTrader: (12)
Joined: May 2003
Posts: 28,824
Likes: 95
From: Blackpool, UK Destination: Rev limiter
Originally Posted by Rallyesport
There is no normal way to increase the fueling on an rst. The system is very simple. There is no need for increasing the fueling by using the fuel mod which alters the base pressure by turning the screw on the back of the electro magnetic fuel pressure regulator. The KE-Jet unit will fuel more on 12 PSI, because the paddle will go deeper beacuse of the greater air flow. The only thing you will have to do if you want to boost more than 12 psi is to change the chip, then you can go to 14.5 psi without out doing anything else. Please don't argue this, it will only show you take your car to the garage to change your spark plugs or light bulbs.
Also, has the car IN QUESTION been modified by Ford at service time back when the RST was pretty new? The mod that was specified by FORD themselves due to the KE Jet system running slightly lean?
Ever wondered why some run rich and some lean folks? Soem will take more boost safely and others melt? Now you know... Ford technitions all seemed to have a different opinion of how to perform the TSB's simple instruction:
"Rotate the screw no more than 15degrees clockwise"
PassionFord Post Whore!!
iTrader: (1)
Joined: May 2003
Posts: 6,508
Likes: 0
From: OTB (On the Beach), Norfolk
Stu, how does any owner check this is carried out when they called them back??
I can't begin to understand why such advise about 'turn it up - it'll be fine' comes from!!!
Sod that for a game of cricket!!
I can't begin to understand why such advise about 'turn it up - it'll be fine' comes from!!!
Sod that for a game of cricket!!
Originally Posted by Tony Turbo
Originally Posted by Micky
@ nick8saff, are you going to take Rallyesport's advice then??Do you feel lucky???
Regards Micky
Regards MickyI wouldn't wish that on a broke dick dog!
He has had a PM sittng unread from me since late Feb, so maybe he just took his chances.
PassionFord Post Whore!!
iTrader: (1)
Joined: May 2003
Posts: 6,508
Likes: 0
From: OTB (On the Beach), Norfolk
Originally Posted by Stu @ M Developments
No more input on this thread?

Originally Posted by James Raby
Stu, how does any owner check this is carried out when they called them back??
PassionFord Post Troll
Joined: May 2004
Posts: 3,432
Likes: 0
From: fee,fife,foe,fumb,i smell the blood of an englishman ,in scotland!
this was fun,rite ! need to find someone to check and set my motor in fife,will this effect the mot,as its not roadworthy juss yet(small thing like an air leak from the brake servo which needs addressing"more expense"),like if its rich,the gases might be out,therefore = fail.
Originally Posted by Rallyesport
The KE-Jet unit will fuel more on 12 PSI, because the paddle will go deeper beacuse of the greater air flow.
Why do you think EFI cars need a 3bar map sensor when you go above 15psi of boost??????
And of course not everyone on here takes their car to the tuners to have their boost adjusted slightly, but those who do don't run the risk. If your going to tell people to double the boost they're are currently running at the very least u need the alleged "spanner and boost gauge" aswell as a good Air/Fuel ratio meter.
Originally Posted by Tony Turbo
Originally Posted by Micky
@ nick8saff, are you going to take Rallyesport's advice then??Do you feel lucky???
Regards Micky
Regards MickyI wouldn't wish that on a broke dick dog!
do you think Rallysport has spat his dummy out
Mr C told him
jamborst told him
tony turbo sent him a pic
safechav aswell
and if thats not bad enough
Stu at msd who does this for a livin put him in his place
Mr C told him
jamborst told him
tony turbo sent him a pic
safechav aswell
and if thats not bad enough
Stu at msd who does this for a livin put him in his place



