help!
1st Gear
Joined: Jun 2007
Posts: 34
From:
RE: help!
15 seems incredibly low for a chipped car... you should have someone go in and manually adjust the settings on that chip to support boost levels like that.
Taken from Modshack.info
Similarly, if your car isn't programmed for boost levels like that, you'll hit limp mode. If your chip is only set at 15 psi and you hit 24, you'll probably hit limp mode.
Taken from Modshack.info
Note: The BM is not meant to replace a chip. Stock tuning parameters have fairly low threshholds and will often put a car into limp mode with small amounts of increased boost. VW's are particularly susceptible to this and operation on a stock ECU will generally be disappointing.
I'm make believe
Joined: Dec 2006
Posts: 17,587
From: In my head
RE: help!
ORIGINAL: TTempted
15 seems incredibly low for a chipped car... you should have someone go in and manually adjust the settings on that chip to support boost levels like that.
Similarly, if your car isn't programmed for boost levels like that, you'll hit limp mode. If your chip is only set at 15 psi and you hit 24, you'll probably hit limp mode.
15 seems incredibly low for a chipped car... you should have someone go in and manually adjust the settings on that chip to support boost levels like that.
Similarly, if your car isn't programmed for boost levels like that, you'll hit limp mode. If your chip is only set at 15 psi and you hit 24, you'll probably hit limp mode.
I'm make believe
Joined: Dec 2006
Posts: 17,587
From: In my head
RE: help!
ORIGINAL: neur0tic
I had mine up at 25psi when I first installed my boost machine but I turned it down because it actually felt like I lost power.
I believe I read on here somewhere that the calculation goes like this:
1 Bar (14.7 psi) of boost = 100% HP increase.
I had mine up at 25psi when I first installed my boost machine but I turned it down because it actually felt like I lost power.
I believe I read on here somewhere that the calculation goes like this:
1 Bar (14.7 psi) of boost = 100% HP increase.
You cant use that formula, turbo size plays a huge part in power numbers along with head flow...etc
example: 20psi on a ko4 is about 100hp less than on a gt35r
1st Gear
Joined: Jun 2007
Posts: 34
From:
RE: help!
What exactly is your problem with what I said?
I believe your original response to the question of whether or not 15 psi was suitable for a chipped TT was "pretty much, so get that boost up". That seems a little weak considering stock numbers for a 180/225 are 11 to 14 respectively. Chipped, I'd expect 18-20 range.
So once again, what's your problem?
I believe your original response to the question of whether or not 15 psi was suitable for a chipped TT was "pretty much, so get that boost up". That seems a little weak considering stock numbers for a 180/225 are 11 to 14 respectively. Chipped, I'd expect 18-20 range.
So once again, what's your problem?
2nd Gear
Joined: Oct 2006
Posts: 1,362
From: Columbus, GA
RE: help!
ahhhh...
Well does the formula work on the K04? I can make a new formula when I go BT next spring. I like to be able to get some sort of estimate of what to expect with different changes. Plus... I'm all about numbers and being able to quantify my efforts. -shrugs-
**Edit**
Oh... and I think I'll be going gt2871r ( I think. I don't have it pulled up right this second). But I'm sure it won't work with that one either. lol
Well does the formula work on the K04? I can make a new formula when I go BT next spring. I like to be able to get some sort of estimate of what to expect with different changes. Plus... I'm all about numbers and being able to quantify my efforts. -shrugs-
**Edit**
ORIGINAL: cincyTT
You cant use that formula, turbo size plays a huge part in power numbers along with head flow...etc
example: 20psi on a ko4 is about 100hp less than on a gt35r. Good info, thnx. I was just trying to help... I can't help it if sometimes I'm wayyyyyy wrong. lol
You cant use that formula, turbo size plays a huge part in power numbers along with head flow...etc
example: 20psi on a ko4 is about 100hp less than on a gt35r. Good info, thnx. I was just trying to help... I can't help it if sometimes I'm wayyyyyy wrong. lol
Oh... and I think I'll be going gt2871r ( I think. I don't have it pulled up right this second). But I'm sure it won't work with that one either. lol
I'm make believe
Joined: Dec 2006
Posts: 17,587
From: In my head
RE: help!
ORIGINAL: TTempted
What exactly is your problem with what I said?
I believe your original response to the question of whether or not 15 psi was suitable for a chipped TT was "pretty much, so get that boost up". That seems a little weak considering stock numbers for a 180/225 are 11 to 14 respectively. Chipped, I'd expect 18-20 range.
So once again, what's your problem?
What exactly is your problem with what I said?
I believe your original response to the question of whether or not 15 psi was suitable for a chipped TT was "pretty much, so get that boost up". That seems a little weak considering stock numbers for a 180/225 are 11 to 14 respectively. Chipped, I'd expect 18-20 range.
So once again, what's your problem?
I'm make believe
Joined: Dec 2006
Posts: 17,587
From: In my head
RE: help!
ORIGINAL: neur0tic
ahhhh...
Well does the formula work on the K04? I can make a new formula when I go BT next spring. I like to be able to get some sort of estimate of what to expect with different changes. Plus... I'm all about numbers and being able to quantify my efforts. -shrugs-
ahhhh...
Well does the formula work on the K04? I can make a new formula when I go BT next spring. I like to be able to get some sort of estimate of what to expect with different changes. Plus... I'm all about numbers and being able to quantify my efforts. -shrugs-
1st Gear
Joined: Jun 2007
Posts: 34
From:
RE: help!
Huh, that's weird, because I don't have a boost machine but get 22 and all I've had done was a simple Revo flash.
And yes, peaking higher than the ECU feels comfortable delivering like that could certainly put you into an overboost situation, leading to a CEL and soft limp mode. It's also the same thing that could happen if you crank up your boost machine wide open, not like that's happened to anyone I know before either.
And yes, peaking higher than the ECU feels comfortable delivering like that could certainly put you into an overboost situation, leading to a CEL and soft limp mode. It's also the same thing that could happen if you crank up your boost machine wide open, not like that's happened to anyone I know before either.