Scramble Boost Button!

[Death By Thrash Metal]

Well im curious to see who uses it and who doesnt ect. Simple Enough!oh and please post what engine/mod you have if you do have one!~~~~~~~~~~~~EDIT~~~~~~~~~~~~~because i explained what a SB Button is, click the "What is a Scramble Boost Button?" if you havent heard of it before. I should have thoght of it before! Thank You!~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Modified by Death By Thrash Metal at 10:53 PM 8/8/2007

Modified by Death By Thrash Metal at 10:54 PM 8/8/2007
Modified by Death By Thrash Metal at 10:59 PM 8/8/2007

[240zac]

what is a scramble boost button?

what does it do?

[Death By Thrash Metal]

It is just a regular looking button that when pressed activates a miniture timer that increases boost for that duration of time.Basicly you can consider it an overboost on your turbo.For a set duration (usually you decide) you can have +xmore psi or Bar (which you can decide aswell).Technically you could just adjust your boost, but this is soo much simpler. The Porsche 997 has an overboost to give it like 450-500hp, and lbft torque.For many people the first time they ever see it is in a touge video, where a r34 is goin up against some car that i dont care about.It can be helpful, if you set your boost lower for quicker spool, and then press it when in higher/longer gears, for a better suited boost (you can afford a little more lagg for horsepower)Well so im told^^^ I could be wrong, but that should be pretty close to the right answer.

[S-13]

sounds pretty complicated. Is it similar to a piggy back computer like an electronic boost controller that will also adjust your a/f mixture in proportion to the amount of extra boost you want to run? Im sure there would be a limit to how many extra pounds you could run especially if youve already tuned your turbo to run at optimum hp output, the extra boost would be like the latter half of the "bell curve" and probably make your car feel slower even though your boost gauge might be reading pretty high. Who makes them btw?

[Death By Thrash Metal]

Its nothing all that special to be honest... its brute simplicity that makes this ***** great.Blitz should have at least one, some of blitz's arent that great i heard.I know that the HKS EVC III, and the V has one, and should be decent.But a little googleing will go a long way... I would definantly start there.It seems HKS EVCs have scramble boost buttons.Its good for fuel economy for "street rally" (Cought* street racing Cough*) because when you need more hp, and can afford less mpg, you just push the button, and when your not rallying (cough* street racing*) you have a lower boost which in theory gives beter fuel effectiveness.Also the higher the boost the shorter the engine lasts, so this is almost like a little tiny bit of NOS (really depending on the settings you put in)here is a vid of that skyline in action:google videos:type in: "Touge Battle Skyline GTR vs rx7"description: "it's a touge battle in initial d style"Again im NOT an expert with turbos or anything, its just a great idea (scramble boost)oh and the only reason the rx7 won is because of its smaller wheel base in such a tight quick weavey touge track. Had it been a little wider the R34 would have easily taken the rx7 on the straight, which if you cant tell then: .EDIT:i didnt really answer your questions did i? lol sorry... the button is part of the boost controller, which some of those boost controllers can top, with their RPM variable boost control. Yes if a car is tuned for max PSi it wont be effective, but for a daily driver it really is a great thing to have. Just do a little more looking into it if your interested, best to look at the boost controllers yourself, so I dont make something sound better or worse than it actually is!

Modified by Death By Thrash Metal at 12:23 AM 8/9/2007Oh and if you REALLY need some proof that even porsche uses it:google vids top gear porsche 911 turbo and just look around for the newest looking blue porsche (that IS the car to beat)
Modified by Death By Thrash Metal at 12:29 AM 8/9/2007

[S-13]

choice #2 and 6 are pretty much the same btw.

[CleanSfourteen]

Its good for fuel economy for "street rally" (Cought* street racing Cough*)

Ya thats something we uh (Cough* don't condone Cough*)

[Encryptshun]

i didnt really answer your questions did i? lol sorry... the button is part of the boost controller, which some of those boost controllers can top, with their RPM variable boost control.

You can get boost controllers that already have "low" and "high" programmable boost settings. I guess I don't see much point in just having it on a timer.

[wannaS13]

i have it but dont really use it all that much. i have only used it at the drag strip once or twice. think of it as running high boost (say 10 lbs) in 1st and 2nd gear then in 3rd you hit the sb button and it would 15lbs for a determined amount of time. this way there is less wheel spin and lag down low, its a good idea just not one that gets used much

[Encryptshun]

Your wastegate must look like Lance Armstrong.

[Dattebayo]

Let me get this straight...

You press a button and your turbo suddenly makes more boost?

Sure it does. That sounds like a whole lot of

[wannaS13]

yea is totally BS thats why i wated my time posting.....why dont you take the time to look up the older evc's and you would know what we are talking about. i personaaly have the older evc ATM which was developed for pikes peak. and yea it changes the reading in the stepper motor like any electronic boost controler does when switching from high to low except it does it for a certain amount of time

[karmakaze]

I have an EVC IV that supports it, however, i have not bought the harness to use it yet. Although I plan to.

[Dattebayo]

So its a electric motor that increases the speed of the turbine? Interesting...

[nwmrkt]

So its a electric motor that increases the speed of the turbine? Interesting...

Its just like boost controller, switches high to low....

[karmakaze]

So its a electric motor that increases the speed of the turbine? Interesting...

Not even close. all it does is increase the boost setting on your boost controller for X amount of time. It is nothing very spectacular or mind blowing.

[Dattebayo]

Okay, I get it. Thats why it seemed like some BS to me I guess then...

I may be able to help you get rid of that VLSD soon.

[Razi]

Is there a cold going around? Everyone is coughing.

[guillermoe]

Its so hard to understand? Its just one button that increases the maximum allowed boost for some time... the boost control will wait for an extra quantity of time before releasing pressure.

[Encryptshun]

Dude, Razi wasn't the one who muggled up your sh*t. Aim better.

[Death By Thrash Metal]

Its so hard to understand? Its just one button that increases the maximum allowed boost for some time... the boost control will wait for an extra quantity of time before releasing pressure.

exactly!But its HOW you use it that makes the difference. In your peak rpm range in a longer gear where the lagg isnt nearly as bad, is a perfect time to use it. Personally i would have to say that im surprised this type of boost controller isnt as popular as a very simple one. I do have to say the rpm dependant boost is great for track only cars, but they arent very fuel efficient.Well im sure there are more people who have it, and more that dont have a clue what it is... hopefully this will spread the word! Oh yah, I dont think its ia cold, i think its west nile cough* street racing cought* syndrom

[gripstr]

So its like the Over Drive button on my corolla?

[Death By Thrash Metal]

depends, but it could be? I really dont know squat about Koronahs ( no offense thou). It could very well be, but at the same time i cant detect sarcasm in text very well...It depends do you feel more hp? or do you feel more tq? if its on the shifter its an overdrive gear, which is somthing completly diff (it makes the wheels spin faster than the enine is making it- at least thats how it was on our old lincoln mark 8)dont press that button if its on your shifter, or at least don't expect to go fast, that thing is really more for fuel economy, and occasionally an actually helpfull last gear, but not so much. I think 350zs have it (manuals, but really dont know, autos might have it as their lastgear aswell)

[AE240SX]

The 997 Turbo is a very cool car. The overboost that you speak of is available as part of the Sport Chrono package. That package includes a analog and digital timer on the dash and data logging capabilities in the navi/headunit. More importantly, it allows the turbo's to overboost for 10 seconds, 17.4 psi instead of 14.5 psi. But the computer that controls all this could literally fly to the moon. The car's got a fiber optic CAN Data Bus network that shares information for all the control units. A scramble boost button could be easy to fit to a car with a turbo but the nessecary tuning to make it safe for the motor would be not so easy.

[Logan76]

I didnt read all the mumbo Jumbo, but how would you compensate for the added boost, You would need to add more fuel and pull some time, or atleast add fuel if you want to run higher boost from what your tuned at. Without a feature added to the "overboost button" that would allow your cars tune to change and adapt to the added boost while the button is depressed you would pretty much be running on the edge, because your AFR's would lean out and your current tune would be useless.

[Soravia]

I used it back in 93-94 when I was a teenager and my V12 car was a wild ride in the TopGear 2.LoL

What I'd like to see is the opposite button. 'High-Milage' That lowers the boost amount for day to day driving.Press both together for 'Normal Boost'.

[Death By Thrash Metal]

I used it back in 93-94 when I was a teenager and my V12 car was a wild ride in the TopGear 2.LoL

What I'd like to see is the opposite button. 'High-Milage' That lowers the boost amount for day to day driving.Press both together for 'Normal Boost'.

there is such thing. google it. dont be lazy.

[Redevil]

One of those option videos had a skyline with a scramble boost button. It still lost to the rx-7 in the touge though. Depending on the cost of the setup its most likely not worth bothering over

[Death By Thrash Metal]

One of those option videos had a skyline with a scramble boost button. It still lost to the rx-7 in the touge though. Depending on the cost of the setup its most likely not worth bothering over

i dont want to sound like an admin but read atleast the first post when you post. I specifically noted it. and later told how to find the video.Thanks!

[jdm_master_X]

well i would imagine during overboost the maf would detect more airflow and the ecu would command the injectors to run a higher duty cycle (assuming the tune is running larger injectors at a lower duty cycle).