Boost Control Systems

Rotrex Blackbird - Gearshifter

feeds@yuku.com (T66) — Tue, 22 Dec 2009 05:04:58 GMT

Hi All,

Not sure where to post this one so go easy....

I am building/having built a Rotrex Blackbird powered car, and have recently purchased a Trickshifter (http://www.trickshifter.com/) to deal with the gearchange.

This is a manifold vacuum system to operate the shifter, has anyone here got a similar setup on a forced induction bike ? I am happy if roll off the throttle I will get the...

MAP sencer how do they work?

feeds@yuku.com (te916) — Wed, 23 Sep 2009 02:43:57 GMT

I've a neat small speed controller, looking to build a water injection system with varied pump speed boost ref' via a MAP , problem is carn't get any ware with bench testing a MAP sencer. ( I have a couple to play with ),
I thought the Map worked like a trim pot with power through two pins with a vaired out put on the third pin, ?

Ps, I've checked this site and many others, carn't find any info. thanks

tial bov replacement

feeds@yuku.com (ghost0211) — Mon, 08 Sep 2008 01:20:47 GMT

im running 6psi @ 235psi on my bike and really dont need a bov but here i go. i need a replacement for tial bov with a 4lb spring but she doesnt make that lovely "pssst" sound. considering that im strickly a street rider and am tired of people asking, "wheres the sound?", id like to replace my top of the line tial 50mm with a loud performance worthy bov. does anyone know if a direct swap out that will fit on the tials 2'' v-band flange? see the pdf below for the...

Innovative MSBC

feeds@yuku.com (emarsh) — Sun, 27 May 2007 20:30:45 GMT

I'm kind of surprised that I'm not seeing any posts about the Innovative MSBC. It's impressive the creative solutions I'm seeing here to boost control, but why re-invent the wheel?

Anyhow, I've got the MSBC on my bike. It can be configured not only to adjust the amount of boost for each gear, but also the ramps - how fast the boost comes in.

I'll be happy to answer any questions about this product and/or post pictures.

Gear Based Boost Control

feeds@yuku.com (smithabusa) — Tue, 01 Aug 2006 17:22:14 GMT

Gary,

Again just wanted to thank you for your idea for boost control and help. My 6 stage is working awesome, and I love the gear position indicator I did as well, no longer reaching for 7th gear LOL.

Question for you, if you are only running 4 stages, Did you wire all 6 pins on the sensor and simply double or triple up the wires from your sensor onto the solenoid you want to run multiple gears from?

Greg

boost controller air pressure

feeds@yuku.com (tfracing) — Sat, 26 Nov 2005 17:51:15 GMT

Gary,

Got my stage 2 today. Well most of it. While I was there I discussed boost control and air pressure. (So far I have put a DOT bottle into the system for volume and have run a line to the double solenoid.) The guy told me to regulate my 160psi to 40psi at the solenoid. He told me to buy a small regulator to do this task. He also said to build / fabricate a resevoir to hold some air to help regulate the boost controller signal. Now all he said made sense but I am unable to find a...

boost controler ?

feeds@yuku.com (Gimp28) — Wed, 03 Mar 2004 17:00:54 GMT

Hello again, I am running an 01 busa with a Hahn kit with Gary's mods. I am working on a multi stage boost controler for my bike. I have all the stuff to build the setup. I am wanting It to work off what gear the bike is in. I have seen posts on here of guys doing it. How do you interface that ? (what tells the solonoids to open and when?) I know the bikes ecu is keeping track of what gear it is in. How do I make it open the solonoids?, Or are you using a seperate computer for this? If so...

Wastegate control with a non-boost pressure source

feeds@yuku.com (Gary Evans) — Sun, 18 Jan 2004 08:33:07 GMT

We have routinely run into high initial boost spiking with my bike on the dyno that doesn't occur on the road and the reason appears to be that the faster acceleration on the dyno is initially overwhelming the wastegate. I'm curious as to what others have encountered in this regard.
Who is controlling their wastegate actuator with a non-boost air pressure source? Are you doing it all of the time or only on the dyno and was that your reason for doing it?

Flow control for bleed style boost systems

feeds@yuku.com (Gary Evans) — Thu, 04 Dec 2003 08:13:07 GMT

On boost control systems using bleed valves it is often necessary to reduce the air flow to the system so it will be in the range of adjustability. Without restricting flow the wategate may still go wide open even when the bleed is open due to the high volume of air. In the past I have just installed a restrictor in the pressure line for this purpose but recently changed to a flow control valve shown in the center of this picture.

Boost adjustment

feeds@yuku.com (red00busa) — Tue, 18 Nov 2003 17:39:52 GMT

What is the least amount you can run with a full pipe and a dump pipe?

internal or external wastgates?

feeds@yuku.com (hondachopper750) — Sun, 16 Nov 2003 01:04:33 GMT

Out of all of the pics I've seen and research I can find, most people are running an external wastegate, is there a downside of an adjustable internal wastegate?I using an airesearch m10 turbo on my mid 70's cb750 honda, everything is handmade, it has an internal wastegate, but if an external one is better i'll change it.I have about another month of fab time so any change that will help performance out, I still have time.I know my system a little outdated compared to your guy's setups, the...

BOV why or why not??

feeds@yuku.com (big john 1300) — Sat, 15 Nov 2003 07:40:32 GMT

Should I run a BOV on my Hahn kit? I'm currently pushing 12psi through the kit @ 275hp!

Wastegate actuator modification

feeds@yuku.com (Gary Evans) — Fri, 10 Oct 2003 06:36:46 GMT

There are three basic potential problems with internal waste gates.

1) The first is regarding the minimum boost level. This is not a problem in an automotive application but on a bike in lower gears you may want the lowest possible boost or even none at all if it were possible. The difficulty in attaining low boost is the relatively small bypass hole in the turbine housing since they were designed for automotive use. Even with the gate wide open the boost level will often be higher...

Boost Controllers?

feeds@yuku.com (XX4me) — Wed, 03 Sep 2003 17:06:52 GMT

Are there any advantages to using the electronic boost controllers? Ever heard of any of them being weather proof i.e. bike mount?
If not which two stage manual is easiest to use?

BOV

feeds@yuku.com (XX4me) — Sun, 31 Aug 2003 04:42:30 GMT

Let talk Blow Off Valves.
On ebay there are a number of different manufacturers for sale JDM, Greddy, ADJ.
What do you guys know about them? Are there any to be avoided? I assume they all work the same off vacuum but other then that....?
Fitting on a Hahn XX is my intention.

Peak Boost Holder

feeds@yuku.com (GsxHyper) — Thu, 14 Aug 2003 17:25:31 GMT

Is this a good price for this holder?or is there a easy way to build your own?
Peak Boost Holder

Boost controller and gauge all in one

feeds@yuku.com (BEN1171) — Mon, 14 Jul 2003 13:45:53 GMT

Thinking of getting one of these controllers.It fits into a 2 5/8 pod or cup and is multi staged and has many cool features.Anyone heard of it?

www.turbosmart.com.au/

External-Gate or Swing-gate?

feeds@yuku.com (csm1690) — Sat, 12 Apr 2003 05:08:38 GMT

I have a Garrett GT2540 on my bike, with an internal waste-gate. I plan on running 18-22psi max. Will a external-gate give that much better control over the internal type? Worth the expense or not?

Boost Creep..what is it?

feeds@yuku.com (csm1690) — Tue, 08 Apr 2003 09:38:15 GMT

We have all heard of Boost Creep....I have thought this happens when you try running a low boost setting (i.e. 6psi) at a high RPM's. The exhaust pressure is very high (not being used to spin the turbine) so the pressure over comes the waste gate spring and leaks. This sound correct?
If the above is true, can you then conclude that "boost creep" really doesn't happen when you run high boost settings? Opinions?

boost gauge

feeds@yuku.com (julesbusa) — Sun, 09 Mar 2003 08:45:28 GMT

does it make a diference if the boost gauge is hooked on the tb or on the airbox????thanx