RS2 Overboost issue - newbie

[LunarWolf]

Update from my previous post...

earlier, i said that i remember that my cousin's late RS2 had a digital boost readout, although i was aware that others i had seen did not.

I was both right AND wrong!!!

I called him late last night (oops)! and he did confirm that his car DID have a digiBoost.
However, it was aftermarket.... it was, in fact, the console from a urS4, which i believe fits right in with minor modification!
So no... the consensus is that there were no digi boost readouts, as standard, on the S2, Or RS2.
My sincere apologies to anyone i contradicted or misled!
I already have my coat on.... so shall now exit the building!

[tscheel]

Update from my previous post...

earlier, i said that i remember that my cousin's late RS2 had a digital boost readout, although i was aware that others i had seen did not.

I was both right AND wrong!!!

I called him late last night (oops)! and he did confirm that his car DID have a digiBoost.
However, it was aftermarket.... it was, in fact, the console from a urS4, which i believe fits right in with minor modification!
So no... the consensus is that there were no digi boost readouts, as standard, on the S2, Or RS2.
My sincere apologies to anyone i contradicted or misled!
I already have my coat on.... so shall now exit the building!

Thanks for the tip - I'm considering to make that mod - I'm not in need of the "in your face" meter, but it would be nice to have the option. No need to leave

[wowow]

Thanks to many of you and especially URs4Boy's post, I finally get the car running ok. I replaced the N75, all air hose and vacuum tubes...etc. I even installed a modern boost gauge ( waiting for Rusty's RS2 gauge ). Now the car gets power at around 3.5k rpm. but the problem is, the max boost is only 0.9-1.0 bar. I am pretty sure the system is not leaking. Question : should I play around with the wastegate spring tension ? I turn the allen screw a few rounds and it doesn't seem to make any difference. Could the spring be too weak ? I have no idea if it has been changed by the last owner, but if he did, I would have guess he put in something harder to improve power.

[prj]

No, don't touch the wastegate.

Pressurize the intake and fix leaks.

[wowow]

Am I correct in say that the few possibilities that i am getting only 1bar of boost are :
1. Waste gate spring not strong enough ( but it used to be ok )
2. Air leak
3. Turbine problem ( just replace faulty shaft ) if everything else is ok, can a healthy shaft spin but not getting beyond 1bar( maybe faulty bearings ?) this may sound stupid but I am just trying to narrow down the possibility.

[Lloyd]

Hi, as Dmitri suggested above, I would focus your energy on doing a complete thorough boost leak test. Don't pressurise over 1 bar. Use lots of very soapy water in a spritz bottle and take your time. Once you have done this and got the results you can look elsewhere (if needed). Good luck