RodgeRS_Turbo

Hi people

just new to the site. I bought an RS Turbo last night.
However I have a problem with it. Runs good, smooth etc but when you open it full throttle is just closes down, if you hold the foot down it will hardly go over 1500 rpm, its like its on a VERY low rev limiter. it does it in any gear, its weird cause it runs sound apart from that - as I say, its only when its on FULL throttle

any suggestions would be mush appreciated

cheers

SafeChav

Check the hoses aren't collapsing

RodgeRS_Turbo

will do cheers

RodgeRS_Turbo

the hoses SEEM fine but i could try replacing them. Any other ideas before I buy a new set? cheeRS

SafeChav

It's the hose from the metering head to the turbo thats going to be collapsing if this is the problem. They're always a bit kinked anyway cos its such a funny angle, and when the turbo starts sucking the air they collapse.

You could try putting a jubille clip in the middle of the hose to help retain its shape and take it for a test drive, if that makes sense?

HORNETS7

sounds like it need setting up

maybe the throttle position senosr is not set up right?

maybe its over boost protection?

is it chipped?

what boost you running?

RodgeRS_Turbo

its not chipped, tuned etc mate just running standard at the moment. Is there a way i can check the throttle position sensor myself?

also, how does over boot protection work? sorry im new to turbos, still doing alot of reading about them.

Its still the original amal valve etc so I dont think the boost has ever been tampered with

cheers for helping

Jamie

SafeChav

A faulty/incorrectly set-up TPS will not cause this.

RodgeRS_Turbo, boost limit only happens when you are running 10/11psi of boost.

See if you can find a way to support the hose and see if it happens then, sounds exactly like it to me

RodgeRS_Turbo

cheers buddy, ill see about getting the hose supported etc tonight. in the meantime ill try and get ssome samcos or something ordered. will check for sale section etc. Ive also got a boost gauge im going to fit, as soon as I know how

I know its to tee into the plenum chamber, is that the thing on top of the inlet manifold thats got 2 hoses coming from it? my DV is tee'd into the right one, do i tee into the left for the boost? cheers

SafeChav

Samco's will never go a miss and they look pretty too

Boost gauges....easy You will see a hose off the top of the plenum as you say, and it will run behind the heater box. Tee into that, and you will also find an un-used grommet in the bulkhead right by the hose aswell.

MAKE SURE you fasten the hoses to the t piece, cable ties would be ideal

RodgeRS_Turbo

cheers mate

RodgeRS_Turbo

is it this one im teeing into:

(this is not my engine BTW)

SafeChav

That one will do the job

RodgeRS_Turbo

i got the gauge on, and seems to be running about standard (7psi)

can the fuel pump be causing this? the fuel pump i think is on its way ot, makes dodgy noises etc

HORNETS7

i doubt it the fuel pump do make funny noises but they either make tyhe car run or not run ! so if your cars running then the pumps fine!

just go and have it set up m8 it will sort out all your problems!

SafeChav

Does the boost pressure drop when you go to full throttle and the fault happens?

RodgeRS_Turbo

nah mate sits in boost fine, as soon as the pedal hits the deck it just cuts out, then the boost obviously drops as a result of this. It happens regardless of what speed/revs your at, its just like theres a button on the ground and when the pedal hits it it just cuts out. thats why I didnt think it was overboosting, cause its not speed or rev related. I think ill take it to AVA and get it set up, any idea how much this will cost?

SafeChav

What about if you put your foot flat down before its spooled....will it cut out then, or only when the turbo is boosting?

RodgeRS_Turbo

will cut out mate, boosting or not.