Delicious Flash & GO Tunes for ALL FORCED INDUCTION Applications - Q&A

[DustinS]

Originally Posted by DeliciousTuning

We would even suggest to not run a BOV at all, since this will offer better drivability and more power between shifts.


Cheers,
William Knose
Delicious Tuning

Interested in your thoughts behind this.

Even when the Manufacturers say otherwise:

From Garrett Website,
"Blow-Off (Bypass) Valves
The Blow-Off valve (BOV) is a pressure relief device on the intake tract to prevent the turbo’s compressor from going into surge. The BOV should be installed between the compressor discharge and the throttle body, preferably downstream of the charge air cooler (if equipped). When the throttle is closed rapidly, the airflow is quickly reduced, causing flow instability and pressure fluctuations. These rapidly cycling pressure fluctuations are the audible evidence of surge. Surge can eventually lead to thrust bearing failure due to the high loads associated with it.
Blow-Off valves use a combination of manifold pressure signal and spring force to detect when the throttle is closed. When the throttle is closed rapidly, the BOV vents boost in the intake tract to atmosphere to relieve the pressure; helping to eliminate the phenomenon of surge."

From Turbonetics Website,
"Q: Should I run a Blow-Off/By-Pass Valve (BOV) on my turbocharged car? What does it do?
A: Yes, all turbo cars can benefit by running a BOV on their vehicle. A BOV works by relieving the compressed air pressure trapped in the piping when the throttle body closes. The turbocharger continues to spin from the exhaust gasses exiting the engine and the compressed air has nowhere to go. The BOV opens and prevents the compressed air from "backing up" onto the compressor wheel causing surge. By venting or re-routing the trapped air, the BOV allows the turbocharger to spool up quicker between shifts and prevents long term damage from continual surging of the compressor wheel."

[LS1M]

Originally Posted by DustinS

Interested in your thoughts behind this.

Even when the Manufacturers say otherwise:

etc.

I think he was referring to a belt-driven supercharger, not a turbocharger. Most modern superchargers include a bypass valve that opens on high vacuum, such as during deceleration. It goes between the s/c outlet & sends pressurized air back to the s/c inlet to prevent surge and over-pressuring of the intake tubing. The only application for an (additional) BOV on a supercharger that I've seen is one that would pop off at a certain boost level to limit maximum boost, so a smaller pulley can be used to build boost sooner w/o exceeding the limit of the injectors and/or engine.

[86 South Africa]

Originally Posted by DeliciousTuning

We are incorporating a Fuel Pressure Sensor kit into our tunes, especially high horsepower cars and Flex Fuel cars. The Fuel Pressure can be monitored by the ECU and if the fuel pressure drops too low (at varying thresholds), it will cause the ECU to go into limp mode and throw a Check Engine Light notifying the driver.

Cheers,
William Knose
Delicious Tuning

My car is in with RMS (South Africa) as we speak getting the FF kit installed... I really hope it have the pressure sensor in it (kit was ordered in Dec)!!

[DustinS]

Originally Posted by LS1M

I think he was referring to a belt-driven supercharger, not a turbocharger. Most modern superchargers include a bypass valve that opens on high vacuum, such as during deceleration. It goes between the s/c outlet & sends pressurized air back to the s/c inlet to prevent surge and over-pressuring of the intake tubing. The only application for an (additional) BOV on a supercharger that I've seen is one that would pop off at a certain boost level to limit maximum boost, so a smaller pulley can be used to build boost sooner w/o exceeding the limit of the injectors and/or engine.

That is why I deleted my original post, but I read over it again and he was talking about the Garrett Turbo Kit. I understand not installing a BOV on a supercharger kit, but what he said seems to be pretty much backwards from everything I have read.

Of course there are special cases. Low Boost Systems* and Anti-Surge Compressor Housings. Just a question, and I hope they don't take this as an attack or anything. Just trying to learn.

[DeliciousTuning]

Originally Posted by 86 South Africa

My car is in with RMS (South Africa) as we speak getting the FF kit installed... I really hope it have the pressure sensor in it (kit was ordered in Dec)!!

The fuel pressure sensor kits have not yet been released (even to our dealers) so your kit will come without.

Sincerely,

Zach
Delicious Tuning

[DeliciousTuning]

Originally Posted by DustinS

That is why I deleted my original post, but I read over it again and he was talking about the Garrett Turbo Kit. I understand not installing a BOV on a supercharger kit, but what he said seems to be pretty much backwards from everything I have read.

Of course there are special cases. Low Boost Systems* and Anti-Surge Compressor Housings. Just a question, and I hope they don't take this as an attack or anything. Just trying to learn.

We stand by our recommendation regardless of the manufacturer and their suggestions. They are in the business of making turbos; we are in the business of making cars drive smoother and faster than they were before we touched them. If it's any consolation, we have several cars we've tuned running for over a decade on the same turbo with NO BOV or BPV anywhere in the system, on much higher than stock boost. Without a bov or bpv, your turbo is likely to last upwards of 100,000 miles before it needs replacement.

Not to mention race cars typically don't run bov's either....the contrast to all of this is running a grossly oversized turbo on a tiny motor. That kind of setup can and may produce surge, which is the only time a bov/bpv will provide any sort of benefit.

Side Note: Toyota/Subaru specifically tell customers not to run E85 in their cars, but would you listen to them just because they told you not to? Or would you go ahead and get a flex fuel kit and tune anyways because you know it's going to make a good deal of power and the results have been proven?

Sincerely,

Zach
Delicious Tuning

[DustinS]

Thank You for the reply!

[DeliciousTuning]

Originally Posted by DustinS

Thank You for the reply!

No problem!

Sincerely,

Zach
Delicious Tuning

[SkAsphalt]

Hey Zach, quick question for you(or anyone who can help me here). I purchased a used electronic boost control solenoid but it did not come with a harness...
I am currently in the process of building my own harness for the kit and the only adapter/plug I need now is the one that would connect to the factory evap sensor wiring.

What is the name of that plug/adapter? This way I can just buy one from Canadian tire or princess auto and build my own harness.

FYI, I am running a prodrive/HOA 3 port

[DeliciousTuning]

Originally Posted by SkAsphalt

Hey Zach, quick question for you(or anyone who can help me here). I purchased a used electronic boost control solenoid but it did not come with a harness...
I am currently in the process of building my own harness for the kit and the only adapter/plug I need now is the one that would connect to the factory evap sensor wiring.

What is the name of that plug/adapter? This way I can just buy one from Canadian tire or princess auto and build my own harness.

FYI, I am running a prodrive/HOA 3 port

Great question, unfortunately I don't know the particular answer since we buy our boost solenoids from Infamous Performance. Our Flex Fuel kits are also rear o2 input, so different plug there too. If I knew the name or the source for those plugs, I'd be more than happy to share!

Sincerely,

Zach

[felixdecat]

Hi Zach & the rest of the Delicious team.

First of all wanted to report that my car has been running awesome on your flex tune for close to 12months now. On and Off track.
Chopping plenty of "faster cars" to great amusements.

Anyway I want to try swapping up-to (or is it down to) the 3.125" pulley on my vortech SC.
Want to know if this will need a re-tune from you guys?

Cheers
Solomon

[DeliciousTuning]

Originally Posted by felixdecat

Hi Zach & the rest of the Delicious team.

First of all wanted to report that my car has been running awesome on your flex tune for close to 12months now. On and Off track.
Chopping plenty of "faster cars" to great amusements.

Anyway I want to try swapping up-to (or is it down to) the 3.125" pulley on my vortech SC.
Want to know if this will need a re-tune from you guys?

Cheers
Solomon

Hi Soloman,

Go ahead and send us an email with the following information so I can get you the best answer possible : Which map sensor you're running, how much boost you'd like to run, what gas you're running. You can send this to sales@delicioustuning.com.com. Thank you, and we're glad you've been enjoying the tune!

Sincerely,

Zach
Delicious Tuning

[SkAsphalt]

Originally Posted by sales@delicioustuning.com

Great question, unfortunately I don't know the particular answer since we buy our boost solenoids from Infamous Performance. Our Flex Fuel kits are also rear o2 input, so different plug there too. If I knew the name or the source for those plugs, I'd be more than happy to share!

Sincerely,

Zach

Hey that is ok actually, the infamous performance boost controller would plug into the OEM wiring harness exactly where I want this one to plug into. from what I understand, it plugs into the evap sensor harness right? Does anyone happen to know the term for that style of plug/harness/pigtail?

[DeliciousTuning]

Originally Posted by SkAsphalt

Hey that is ok actually, the infamous performance boost controller would plug into the OEM wiring harness exactly where I want this one to plug into. from what I understand, it plugs into the evap sensor harness right? Does anyone happen to know the term for that style of plug/harness/pigtail?

That would be the CPC pressure sensor.

Sincerely,

Zach