The DDP tends to introduce boost creep from what I've heard on other people's setup, I don't actually know if they've found a way to cure it or not. Some people's boost creep is so bad that goes up until fuel cut.
how to determine the correct boost pressure
- Thread starter whenmunkysfly
- Start date
2543arvin said:
Similar, Heres my set up and i hope to be well over 300 horses
BIC DDP
3.5 exhaust
Intake
Cometic Head gasket
ARP headstuds
SAFC
LM-1 Wideband
550cc injectors
Lexus AFM
Intercooler
Hard pipes
Ported and polished manifold
Slightly higher compression
I beleive that people have stated that boring out the wastegate has helped to eliminate the boost creep. However, I have a DDP and this seems to be a minor problem for me.
Also, a wideband is merely a device to monitor your air/fuel ratio. This device can be used in combination with other devices to adjust your A/F ratio. With some searching you can find good info regarding this.
I am personally running a DDP, 3 inch exhaust, an intake and roughly 10 lbs of boost. I dynoed 281 hp and 330 tq.
Also, a wideband is merely a device to monitor your air/fuel ratio. This device can be used in combination with other devices to adjust your A/F ratio. With some searching you can find good info regarding this.
I am personally running a DDP, 3 inch exhaust, an intake and roughly 10 lbs of boost. I dynoed 281 hp and 330 tq.
This only happens when you have all the mods I mention - otherwise there is enough flow restrictions that it doesn't happen.starscream5000 said:
The nice thing is, by the time you have all these mods, it doesn't matter, you just crank up your boost to wherever it would creep to and it goes like stink.
With the mods I have listed, you just tell your Maft pro to keep the AFR at a specific number based on the WB input and go.
what i wana kno is how do you kno when 93 octane isnt enough and you need to start reducing timing.
as long as your air fuels and EGT's are good, with the right amount of timing and octane, and your not over poweing the bottom end, youll be good.
the problem is knowing how much timing you have/need octane you need and output liming for your bottom end.
as long as your air fuels and EGT's are good, with the right amount of timing and octane, and your not over poweing the bottom end, youll be good.
the problem is knowing how much timing you have/need octane you need and output liming for your bottom end.
Pro tuning shops have a device they attach to the engine that detects knock. The other possibility (that I haven't hooked up yet) is using the timing monitor in the MAFT Pro to detect when the ECU starts pulling timing to prevent knock.
s383mmber1 said:
For a stock CT, 16 PSI is too much. The efficiency of that turbo is 15PSI. Anything after that and you're just blowing hot air.