It seems that in every gear besides 1st and 2nd im getting boost creep. By the time I hit 5000rpm im at 10psi and climbing. The car was tuned at gt motorsports by Sam. I told him about it so he made some adjustments with the gain, but I still have the problem. Any ideas?

 

Forge Actuator springs FTW... This should "help."

http://www.forgedperformance.com/sto...1&cat=0&page=1

 

What boost controller?

 

Unichip

 

Hmmm. I'd get a nice EBC too.

 

If I get a ebc, do I simply unplug the unichip boost solenoid, or would I have to integrate it.

 

How would that help? The unichip's boost control is pretty good... at least as good as most EBC's.

 

they say that the aps springs are pretty weak. i would go with a forge actuator. i can't speak directly on the unichip bcs because i scrapped it and went utec on my aps st.

 

i have the unichip with my aps st and haven't experienced any overboost issued, however, i have been thinking about going with the forged actuator.

 

i have 2 for sale. PM me.

 

Hey james ,as per our recommendations a forge actuator will defiantly have a little better control, the reason why you car is over boosting, when we did the initial install we had a problem building up boost, so we had to adjust the actuator rod a little tighter to fix that issue , so when you tighten up the preload it does fix the boost building issue but sometimes it will create over boost condition like you are having now, the ultimate fix is to take advantage of the aps new external waist gate. and you will never have any boost issue, external waist gate is the way to go specially on that system which it could be troublesome sometimes .

Sam

 

Can you pm with a price for the external wastegate, and also I sent you a pm about something else, thanks

 

I had the same problem.. until I bought a forge actuator. External wastegate would be even better..

 

External WG FTMFW... Internal WG setups have more problems than not...

 

I've never been a fan of EMS boost control. Too many issues that I've heard of... I'm not sure about the Unichip's boost control features, but a quality stand alone EBC is usually a better bet from what I understand.

Not trying to start a huge debate, and as always, just my

OP: if you can get away from the internal WG all together, then that's the way to go IMO. A quality external WG should give you far better control over boost fluctuation. However, if you're stuck with the internal setup, the forge actuator springs have worked wonders for several APS fans. The best shot is to get a spring that's close to your desired PSI levels, and then augment with a good EBC (Unichip EMS BC if that's a good option).

 

once again, i have 2 of the forge actuators for the aps single kit, for a cheap price.

 

whats cheap pprice, pm me tig488.. give me a good deal

 

Hey Tig,
I actually bought one from forged the moment it was suggested,

as far as the external WG, im going to probably get it anyways when I get my new motor, im assuming thats the unit on APS's website under options for the single turbo...

I'll post the results once I get the forge unit in, thanks for the replies

 

hey do let me know, im running into the same problem, towards the high rpm, its crreping up, im tuned aat 9lb boost, i wonder if its becuase of the cold nights in atlanta that it has been?
or maybe the blitz boost controler, may read a lil off???