Fresh Hondata 91 Tune - Stock BOV - "straining" noise when lifting throttle @ high load

[jcm]

Hi guys.

Just recently got my ECU unlocked and slapped a 91 base map on the ecu accounting for the current bolt ons I've got.

PRL hvi
PRL charge pipe
PRL intercooler

now, when I really stomp on it on the highway in 4th gear and hit higher RPM ranges and then shift up to 5th,
or just generally lifting at all after stomping on it, the resulting BOV noise has changed.
it no longer sounds like a clean exit of air.
it sounds strained and harsh. it's making me a little nervous.

the hondata tune does alter the maximum boost pressure and I believe there is an option for this.
from what i've seen, it's going up to around 24 pounds of boost after tune. previously maxed out around 20 pounds of boost.

am I headed for trouble with the stock BOV? I believe the stock valve is plastic.

any input greatly appreciated.

EDIT: important to note - the strain noise does not occur every lift. it is intermittent.
i assuime it is likely tied to events including boost pressure towards the above-stock new cieling at around 24 pounds.

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[princers]

any boost leaks? did you check to make sure the charge pipes are fastened securely?

 

[jcm]

I will examine chargepipe, and then I will examine the sleeve piping at the hot and cold side and report back. thanks much

 

[Two Step Performance]

The stock bypass valve is good for way more than the factory turbo could ever put it through. It's normal for the valve to sound different at higher pressure.

When we tested our TSP Stage 1 tune for the FL5 against the Hondata 93 octane basemap we found that the basemap used a lot more boost but ultimately achieved less power output. A more refined tune such as our TSP Stage 1 tune for the FL5 would yield better results at what is likely lower boost pressure if that is something you are interested in.

 

[jcm]

so ive taken a look at both the hot and cold side of the charge pipe sleeves as well as the charge pipe itsself, i have not yet observed any boost leaks occurring within that interconnectivity and the clamping looks ok on the intercooler side, and the bolts look ok on the charge pipe side. I assume at this point that the noise I am hearing is simply due to the heavier pressure events at 24-26 pounds of boost, my main concern was BOV failure as I am told the stock BOV is plastic. TSP i'm glad to hear that the stock bov is capable of taking pressure greater than what the stock turbo is capable of outputting.

I will eventually pursue a more refined tune, I am weighing my options as far as downpipes go as a preliminary step and at this time I have reviewed data for the TSP and RV6 downpipes, and for my goals with what I want to achieve with the car at this time these are the two options for the downpipe. after I figure out a situation for a downpipe i'll likely move forward with a custom tune of some kind.

much appreciated guys

 

[Car00071]

so ive taken a look at both the hot and cold side of the charge pipe sleeves as well as the charge pipe itsself, i have not yet observed any boost leaks occurring within that interconnectivity and the clamping looks ok on the intercooler side, and the bolts look ok on the charge pipe side. I assume at this point that the noise I am hearing is simply due to the heavier pressure events at 24-26 pounds of boost, my main concern was BOV failure as I am told the stock BOV is plastic. TSP i'm glad to hear that the stock bov is capable of taking pressure greater than what the stock turbo is capable of outputting.

I will eventually pursue a more refined tune, I am weighing my options as far as downpipes go as a preliminary step and at this time I have reviewed data for the TSP and RV6 downpipes, and for my goals with what I want to achieve with the car at this time these are the two options for the downpipe. after I figure out a situation for a downpipe i'll likely move forward with a custom tune of some kind.

much appreciated guys

TSP Downpipe ftw, GESI catted so its the way to go.

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