hi all.... i have a prob with my 2wd saff. its got a turbo technics t38 and i cant get the boost to go over 25psi. it should run 30 psi and is running air injectors. it runs 25psi with no pre load on the actuator and i was told to raise the boost a little by shortening the actuator arm. i have tried this and it makes no difference at all.. i have checked for air leaks and can find none. any ideas please..?
thanks

 

fit a bleed valve and see if you can up the boost if you can then its the air injectors

 

you mean fit in place of the injectors..? or in line ..

 

yes fit in place of injectors

 

well i have a tt t38 with air injector too and would like to know where 4 psi of my lovely boost has gone.....was 34 now 30

 

radiant red
you may have a air leak

 

had a good look about mate nothing obvious although im suspecting a possible bad seal of the air temp sensor under the inlet manifold (wrc copy)

looks like im up at 6 tom as its my rolling road day-booo!

 

you have to be careful as your tuner might have capped the boost at low revs to stop it surging and you are gonna fit a bleed valve and fook it up.

Shortening the arm will make no difference as the air's will compensate.

I would go see the person that mapped it as see what they say.

HTH

Daniel

 

good advice

 

when it was set up originally with my old turbo but still with air injectors they turned the boost up to fine tune it by using the actuator. it now has a chip to run the new turbo... when i rang last week for some info was told it should run 30psi and probably had an air leak .. ive checked and am sure their is not.. ill get on the phone tomorrow .... as soon as it starts making boost it flies straight to 25 and stays their.. if not ill just leave it as it is..

 

If i was you I'd take it there for them to look at/set up.

If air's are like boost controllers, actuator should not make a diff. from what I've been advised that airs run unlimited if a pipe comes off.

wouldn't risk it personally, did they not remap the boost curve for the new turbo if not whats the point of having them?

if it has an air leak and you turn it up in the meantime and you fix the leak it will overboost on next run and cost you.

 

gibbo frst
didn't realise you hade fitted a different turbo .. in that case best take it to a tuner that can re map and adjust it up other wise its bad news