JDL 5130 Twin Scroll Turbo Kit - Page 16 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

ft_sjo · 03-22-2013, 06:10 AM

How did you melt a vacuum hose? Did something fail, or was it poor installation?

Sportsguy83 · 03-22-2013, 07:52 AM

Even if data logging was on and lets say it went BOOM at 20 psi it still does not necessarily mean the limits of the motor have been found. One thing is to break being tuned for those conditions and another is breaking because the motor went way off tuning conditions.

rusty959 · 03-22-2013, 01:15 PM

Quote:

Originally Posted by Sportsguy83

Even if data logging was on and lets say it went BOOM at 20 psi it still does not necessarily mean the limits of the motor have been found. One thing is to break being tuned for those conditions and another is breaking because the motor went way off tuning conditions.

Correct, but if multiple parameters were being logged we can have a bit of idea of what happened. For example, a massively lean condition at your example 20 psi could be thought of differently than could an only slightly lean condition at 20psi. We don't really know how useful the data will be until we can see it, assuming it exists.

SubieNate · 03-22-2013, 02:54 PM

Kaboom.

Is this the first motor to pop while being tuned for turbo?

mact · 03-22-2013, 03:01 PM

Is there such a thing as a redundant.. dual hose wastegate? Perhaps dual wastegates?

JDLAutoDesign · 03-22-2013, 06:22 PM

Let me be clear it wasnt the tune or the hardware. The car drove great after the tune. The car was fine until the line melted. If the line wouldnt have melted it wouldnt have over boosted and popped.

We have a full longblock on the way. Once its back in there it will go back to get tuned at the same boost levels on E85 ect.

Z0rr0 · 03-22-2013, 07:58 PM

You guys didnt have any sort of over-boost fuel cut set up?

OrbitalEllipses · 03-22-2013, 08:01 PM

Quote:

Originally Posted by SubieNate

Kaboom.

Is this the first motor to pop while being tuned for turbo?

Quirt Crawford blew one a little while back.

Murseman27 · 03-22-2013, 08:14 PM

Quote:

Originally Posted by OrbitalEllipses

Quirt Crawford blew one a little while back.

i heard that, how did that happen

Jesse@JDLAutodesign · 03-22-2013, 08:16 PM

Quote:

Originally Posted by Z0rr0

You guys didnt have any sort of over-boost fuel cut set up?

yes there was. There was issues with the fuel pump that we ran into after ~350whp...We ran a direct power source to it on the dyno to finish the tuning that night. The first things on our agenda the following day were braided AN wastegate lines and new wiring for the pump to support past 350whp...

OrbitalEllipses · 03-22-2013, 08:16 PM

Quote:

Originally Posted by Murseman27

i heard that, how did that happen

Detonation weakened a rod bearing and he spun it a week later.

Huehuecoyotl · 03-22-2013, 08:17 PM

what was the boost level when it popped?

Jesse@JDLAutodesign · 03-22-2013, 08:23 PM

Quote:

Originally Posted by Huehuecoyotl

what was the boost level when it popped?

no idea...The car would start to lean out after 350whp and 6000 with the OEM fuel pump wiring. That was at about 13-14psi..

sw20kosh · 03-22-2013, 10:17 PM

Quote:

Originally Posted by Jesse@JDLAutodesign

no idea...The car would start to lean out after 350whp and 6000 with the OEM fuel pump wiring. That was at about 13-14psi..

This is frightening! Why is the wiring not working? Is anyone else changing the wiring?

03-22-2013, 03:01 PM	#215
mact Senior Member Join Date: Feb 2012 Drives: 13 GTI Location: WI Posts: 416 Thanks: 119 Thanked 204 Times in 97 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Is there such a thing as a redundant.. dual hose wastegate? Perhaps dual wastegates? __________________

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03-22-2013, 06:10 AM	#211
ft_sjo Banned Join Date: Oct 2012 Drives: GT86 Location: The Motherland Posts: 1,398 Thanks: 140 Thanked 473 Times in 271 Posts Mentioned: 22 Post(s) Tagged: 0 Thread(s)	How did you melt a vacuum hose? Did something fail, or was it poor installation?

03-22-2013, 02:54 PM	#214
SubieNate Senior Member Join Date: Aug 2012 Drives: 2013 FR-S Ultramarine Location: Temecula, CA Posts: 959 Thanks: 288 Thanked 560 Times in 269 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	Kaboom. Is this the first motor to pop while being tuned for turbo?

03-22-2013, 06:22 PM	#216
JDLAutoDesign Join Date: Jul 2012 Drives: 13 FRS Location: Phx AZ Posts: 1,827 Thanks: 389 Thanked 1,437 Times in 652 Posts Mentioned: 104 Post(s) Tagged: 1 Thread(s)	Let me be clear it wasnt the tune or the hardware. The car drove great after the tune. The car was fine until the line melted. If the line wouldnt have melted it wouldnt have over boosted and popped. We have a full longblock on the way. Once its back in there it will go back to get tuned at the same boost levels on E85 ect.

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