dale rs1989

hi im new to this and i have just bough an rs turbo iv had it for 3 days and it stops idleing wen its warm it has a bigger turbo and a boost valve apart from that it is standard it hasnt got a dump valve or any thin any ideas any one

mark106mark

Check the dump valve vacuum pipe is properly fitted and the oil filler cap is not leaking. Although it could be a other things these are worth double checking as these will stop the car idling

dale rs1989

hi mark my car will idle fine wen its cold and warm it seems like it gets to hot. it just really struggles to idle wen its hot it allso cuts out in 4th and 5th wen u go over 70mph it will just cut out wen it reaches 4 thousand revs wen the boost valve is turned up

mark106mark

I should of read you first msg properly sorry I was half asleep....... is the car chipped? what boost is it running?

dale rs1989

hi yer its not chipped and wen i got it 3 days ago 19psi but i dont no anything about it or turbos yet but im learnin quick tho. the person said it was runin at 19 but i think its runin more at 15 now.he had the boost valve turned write up iv turned it down now to save the turbo umtill i get a dump valve

Chopshop85

iTrader: (4)

is there anything to suggest said boost? i.e boost gauge?
if its not chipped the boost will cut off after 9 or 10 psi iirc.
also i would strongly suggest not touching a boost valve yourself as turning the boost up or down also requires fueling, timing etc to be compensated for the higher airflow on mfi models as the metering units are quite old.

also what turbo is fitted?, as im just thinking why fit a bigger turbo but not get it chipped, as the bigger turbo will not be able to run anymore than standard boost so all you'll gain is more turbo lag??! :s

mark106mark

as above really it sounds like the ecu is stopping it overboost which means it might not be chipped..??

grayzo

iTrader: (1)

as u said mate the most boost u can run is 9.5 psi on a standard ecu without the boost cut cutting in

mark106mark

turn that bleed valve all the way in and see what happens...

dale rs1989

the person that had it before put the turbo on it some one said its a cosworth turbo or stage 3 turbo like i said i dont no much about em.wen i got it he said it would cut out bec of the ecu witch it does cut out in 4th wen u hit 4 thousand revs and 5th but now iv turned the boost down it does a 100mhp as wer wen i got it it would only do 70. i dont think it cuttin out on top end is to do with it not idleing wen its hot.but as soon as i can keep it tickin over il send it in to a garage to get set up.some one said it could be the icf or some in ?????/??

dale rs1989

do u mean up ????

Korda

iTrader: (1)

if i was you i would take it to alan jeffery and let him set the car up for you. if you try and do it yourself it could end up with a dead turbo or engine.

dale rs1989

were he to im in devon

Chopshop85

iTrader: (4)

By you turning the boost down is stopping the ecu from cutting the overboost sooner i should think as the turbo is not boosting as hard.

One thing to check with cutting out idleing when the car is up to running temperature is your oil pressure. Ive had the same problem twice, one turnt out to be a blocked oil scoop, and the second one was big end bearings on their way out causing a big drop in engine pressure, hence the stalling.


And as said above, i would wind the boost valve all the way in until you can get someone to set the car up properly on a rolling road or something. You'd be amazed how much damage can be done by not having it done properly.

dale rs1989

[quote=Chopshop85;4092378]By you turning the boost down is stopping the ecu from cutting the overboost sooner i should think as the turbo is not boosting as hard.

One thing to check with cutting out idleing when the car is up to running temperature is your oil pressure. Ive had the same problem twice, one turnt out to be a blocked oil scoop, and the second one was big end bearings on their way out causing a big drop in engine pressure, hence the stalling.


And as said above, i would wind the boost valve all the way in until you can get someone to set the car up properly on a rolling road or something. You'd be amazed how much damage can be done by not having it done properly.[/

i dont think its the big end bec i think u would here it i think.the engine sounds sweat.wat is the oil scoop then ? and were is it ? wen i sort the idle out it will be goin in to get set up properly

Chopshop85

iTrader: (4)

Well you can hear big ends when they are dead cos the engine sound like a tractor. But not when they are on their way out. Like the symptoms leading up to it. That is only a worse case scenario tho, im sure its something much simpler.
The oil scoop is the return in your sump. looks like a small hoover nozzle. However, start by checking the easiest thing, dipstick in properly, oil refill cap is snug yada yada. u know

dale rs1989

checked the cap and dip stick il prob ckeck the oil sump tomorow could u just give me bit more info on and wat u got to do to clean it ? it funny how it only does it wen its warm

could save me a lot of money i hope

Korda

iTrader: (1)

hi mate alan jefferys is in plymouth,

Chopshop85

iTrader: (4)

is the oil light flickering when the car is warm? if not i shouldnt think it'll be the oil scoop. best to check as it will save you pulling the sump off etc..

dale rs1989

no oils lights are comeing on so do u think i should take the sump off to check the oil scoop ???

Chopshop85

iTrader: (4)

nah i wouldnt bother then mate, its clearly not an oil pressure idle issue. it must lie else where.

not sure tho with the whole it getting hot before it does it. how hot does the engine have to be for it to cut out?

lurch1977

iTrader: (1)

Possibly shot actuator

rst-s2

http://www.enginetuner.co.uk/home.htm

Only place around devon which will do what you need mate