2G IPT restall

[Tyler Davis]

Hello, just installed an IPT restall in my 2.3 2G to try and spool the fp red off the line and still am only foot stalling to around 3100-3200 and only building 3-4psi. Any tips or things to look out for. I’ve boost leak tested it and it does come out of the actual compressor side of the turbo and that’s the only thing I can think of that would be causing this issue

 

[1990TSIAWDTALON]

The tune for stall up is the key.

 

[Tyler Davis]

The tune for stall up is the key.

Yeah I was trying to mess with doing more timing/less fuel and other way around but even at AFR around 12.5 and 20+ timing it still wasn’t changing anything

 

[1990TSIAWDTALON]

Are you tuning yourself or do you have a tuner?

 

[Tyler Davis]

Are you tuning yourself or do you have a tuner?

The car was originally tuned by a local guy McKenzie Lange, but it was still on the stock converter and it would only stall up to 2700ish and only build 1-2lbs but I just tried to mess with it myself today

 

[motomattx]

Just how big is this turbo?

 

[Tyler Davis]

Just how big is this turbo?

It’s the FP Red UHF 57S, it’s a 54.8mm compressor wheel, I figured with a 2.3 and a restall it wouldn’t have much of an issue

 

[motomattx]

It’s the FP Red UHF 57S, it’s a 54.8mm compressor wheel, I figured with a 2.3 and a restall it wouldn’t have much of an issue

Yeah, that shouldn't be an issue on that turbo.

 

[CrackedDSM]

There's another problem, because it should easily stall with that engine/turbo combo. When you say it has a boost leak at the compressor side of the turbo, how bad is it? Because that could easily be the problem. Also, any exhaust leaks? Verified timing?

 

[Tyler Davis]

There's another problem, because it should easily stall with that engine/turbo combo. When you say it has a boost leak at the compressor side of the turbo, how bad is it? Because that could easily be the problem. Also, any exhaust leaks? Verified timing?

IMO I would think the leak is pretty bad, when boost leak testing it will start to leak around 5psi and by the time you build to 20psi it will be back down to 5 after 10 seconds, give or take,coming from nowhere but the turbo itself I contacted FP about the issue and they made it sound like that isn’t uncommon for there to be a slight leak where the compressor side meets the center but they could check it out, I said I would be interested in them taking a look but got no response after. I’m almost certain it is that, just was hoping it wasn’t cause it’s a next to brand new relatively expensive turbo

 

[1990TSIAWDTALON]

Can you post a log of you trying to stall the converter?

 

[Tyler Davis]

Yeah I will try to later tonight, I’m at work at the moment

Can you post a log of you trying to stall the converter?

 

[Tyler Davis]

Can you post a log of you trying to stall the converter?

sorry this log is very long but this was one of the attempts, 335 seconds is where its at. all attempts pretty much looked the same as this one regardless what i did with the tune

 

[1990TSIAWDTALON]

It's late but I will see what I can see tomorrow. Thanks for the log!

 

[Tyler Davis]

It's late but I will see what I can see tomorrow. Thanks for the log!

No thank you for helping! I am inexperienced with trying to troubleshoot the auto trans

 

[1990TSIAWDTALON]

There is a lot of things not being logged but I can see that you have a lot of timing when you are trying to build boost. I have found that retarding timing in the area of your timing table that you are at, but I can't see that in your log. No MAP sensor, no boost reference (there is ECUBoost I see), no Wideband for tuning and I understand maybe it is a all stock car.
I would turn your launch limit down to 3000 or 2800, and enable Antilag with adding 2%-5% extra fuel (I don't remember what it defaults to). Just stuff I would try.

 

[Tyler Davis]

There is a lot of things not being logged but I can see that you have a lot of timing when you are trying to build boost. I have found that retarding timing in the area of your timing table that you are at, but I can't see that in your log. No MAP sensor, no boost reference (there is ECUBoost I see), no Wideband for tuning and I understand maybe it is a all stock car.
I would turn your launch limit down to 3000 or 2800, and enable Antilag with adding 2%-5% extra fuel (I don't remember what it defaults to). Just stuff I would try.

Yeah I’m still on the stock MAF, but the car is a built 2.3 with an FP red, I just haven’t wired any of my sensors into link because I haven’t done much looking into how to do it but those link estimates for boost and AFR are actually pretty much spot on

 

[1990TSIAWDTALON]

I was looking for the air fuel ratios and your VE table but we can't see them yet.
Here is a test for getting the car to get into boost. On your timing tab, pull the slider down and take 10* out at 3000 then test the car to see if she will give you more boost. I actually run the antilag to get my 60mm to spin up.

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[1990TSIAWDTALON]

You obviously can't leave it that way but would give you an idea of if pulling timing in the correct area would get it to spool.

 

[Tyler Davis]

You obviously can't leave it that way but would give you an idea of if pulling timing in the correct area would get it to spool.

i will have to try that, and what do you suggest I run for parameters for logging? Eventually I want to wire in my WB and Boost gauge, I just didn’t know how easy it was. And I actually have my speed density stuff coming in tomorrow so I would assume I would have to basically retune the car after that’s setup

 

[1990TSIAWDTALON]

Retuning shouldn't be necessary. You are just changing the way the motor reads its inputs. Wideband logging is needed for tuning (although I have one car that I have ECMLink in that I tuned but has no wideband) and can be input into the rear O2 sensor input, I believe, and boost is usually logged also under MAP. You have a 2g car so I am not familiar with the pins for those to be installed on. I only have 1990's (and a 1992).

 

[Tyler Davis]

Retuning shouldn't be necessary. You are just changing the way the motor reads its inputs. Wideband logging is needed for tuning (although I have one car that I have ECMLink in that I tuned but has no wideband) and can be input into the rear O2 sensor input, I believe, and boost is usually logged also under MAP. You have a 2g car so I am not familiar with the pins for those to be installed on. I only have 1990's (and a 1992).

Just an update, pulled the turbo off and found the internal gate was not sealing all the way which I’m guessing is my problem, sending it to FP anyway to have them check it out and see if there’s any damage and to check out that wastegate. I’m guessing the turbo is working much harder than it would normally to build 25-30psi with that always being open