hiting boost limiter at 4000rpm in forth
#1
hiting boost limiter at 4000rpm in forth
fitted my new -31 acuator today, played around abit and finally got it running nicely, took it for a test run and found that in forth it woulnt go past 4000rpm but it would in every other gear, i take it this is the boost limiter kicking in as my ecu is not chipped,
i will lower the boost slightly tomorro and see if it still happens, just wondering if im correct and if any1 else has had this
and please no replys saying take it to a garage, else i woulnt be asking this question
i will lower the boost slightly tomorro and see if it still happens, just wondering if im correct and if any1 else has had this
and please no replys saying take it to a garage, else i woulnt be asking this question
#3
LOL about taking it to a garage!!
Take it to a garage!!! PMSL.
Seriously though, you are almost certainly hitting the 10psi cut. Take half a turn off the actuator and that should sort it.
Take it to a garage!!! PMSL.
Seriously though, you are almost certainly hitting the 10psi cut. Take half a turn off the actuator and that should sort it.
#5
Thanks christian, i should be fitting my -31 2moro.
Heres a question for you... I took my actuator hose off the anamal valve and ran it up the road to see if my car was chipped it hit 20 psi before i backed off with no problems doesnt this sound like my cars chipped or will a RS do that if it was not chipped ???
Heres a question for you... I took my actuator hose off the anamal valve and ran it up the road to see if my car was chipped it hit 20 psi before i backed off with no problems doesnt this sound like my cars chipped or will a RS do that if it was not chipped ???
Trending Topics
#8
Too many posts.. I need a life!!
Joined: Sep 2005
Posts: 673
Likes: 0
From: barnsley, south yorkshire
im currently running my car without a pipe going to the actuator as i dont have a amal valve or bleed valve, but have boost gauge, i dont take the boost past 14psi ever,
i once floored it and it went upto 20psi, then i changed gear and shat my self as it chattered like fuck!!!!!!!
but am awaiting a amal valve coming,
i once floored it and it went upto 20psi, then i changed gear and shat my self as it chattered like fuck!!!!!!!
but am awaiting a amal valve coming,
#9
Originally Posted by davsmith64
im currently running my car without a pipe going to the actuator as i dont have a amal valve or bleed valve, but have boost gauge, i dont take the boost past 14psi ever,
i once floored it and it went upto 20psi, then i changed gear and shat my self as it chattered like fuck!!!!!!!
but am awaiting a amal valve coming,
i once floored it and it went upto 20psi, then i changed gear and shat my self as it chattered like fuck!!!!!!!
but am awaiting a amal valve coming,
#11
davsmith64, at a bare minimum for you i'd run the hose from the actuator to the compressor housing and that'll give you 12psi and wont go above.
Is your car even set up for 14psi? your asking for trouble!!
Anyone know why my cars hitting 11/12psi? standard boost/no bleed valve/-31 (afaik) chipped. . amal valve/piped up correct (if one of the hoses was loose, would that make it overboost?)
Is your car even set up for 14psi? your asking for trouble!!
Anyone know why my cars hitting 11/12psi? standard boost/no bleed valve/-31 (afaik) chipped. . amal valve/piped up correct (if one of the hoses was loose, would that make it overboost?)
#12
Too many posts.. I need a life!!
Joined: Sep 2005
Posts: 673
Likes: 0
From: barnsley, south yorkshire
I tryed looping from actuator to turbo but then the car wont boost above 6psi then!!
my current spec is,
1600 cvh with .5mm mahles (forged)
EFI Converted (ofab with chip)
beige injectors,
stage 3 Area six big valve head with kent cam and multiangled valve seats
port and polished with matched manifolds
magnex full system
cossie t3 turbo ( .48 housing )
pro alloy cooler
filter
my current spec is,
1600 cvh with .5mm mahles (forged)
EFI Converted (ofab with chip)
beige injectors,
stage 3 Area six big valve head with kent cam and multiangled valve seats
port and polished with matched manifolds
magnex full system
cossie t3 turbo ( .48 housing )
pro alloy cooler
filter
#13
Your better off running 6 psi mate, seriously, as slow and tedious to drive as it may be, it will be less tedious than an engine rebuild!
I know which i would rather do. And you don't even know how high you can boost without running lean. VERY risky ground IMO
I know which i would rather do. And you don't even know how high you can boost without running lean. VERY risky ground IMO
#18
Too many posts.. I need a life!!
Joined: Sep 2005
Posts: 673
Likes: 0
From: barnsley, south yorkshire
yeah i know whay i am doing and i deffo know the big risk to it also!!
as they way its setup the turbo is getting unlimited boost but on limited fuel, which will cause the car to run very lean on high boost,
i deffo know it needs to go for a setup for certain..
but what i am pointing out it that i very rarly put the foot down, i know its stupid rigging it up the way it is.. but as i say i have ordered a amal valve for it and when that comes i will be putting it on!!
i dont even think the car has done above 70..
i run it in with the waste gate open i.e no boost, then rigged it this way after about 2000miles, also the engine is for sale soon
lol, any1 wana buy it?
as they way its setup the turbo is getting unlimited boost but on limited fuel, which will cause the car to run very lean on high boost,
i deffo know it needs to go for a setup for certain..
but what i am pointing out it that i very rarly put the foot down, i know its stupid rigging it up the way it is.. but as i say i have ordered a amal valve for it and when that comes i will be putting it on!!
i dont even think the car has done above 70..
i run it in with the waste gate open i.e no boost, then rigged it this way after about 2000miles, also the engine is for sale soon
lol, any1 wana buy it?
#24
Too many posts.. I need a life!!
Joined: Sep 2005
Posts: 673
Likes: 0
From: barnsley, south yorkshire
like am guna think u want it when u put a crying face at the side of what u said!!lol
i got a question 4 ya tho, my car only starts now and again on the key, i have to use a button start otherwise, any ideas..
i got a question 4 ya tho, my car only starts now and again on the key, i have to use a button start otherwise, any ideas..
Thread
Thread Starter
Forum
Replies
Last Post
Mark RS
Ford RS Cosworth Parts for Sale
7
12-10-2015 06:01 AM
SMILER258
Restorations, Rebuilds & Projects.
36
28-09-2015 09:04 AM
Russ Payne
Ford Sierra/Sapphire/RS500 Cosworth
1
25-09-2015 08:29 PM