Gizzmo Ms-Ibc

[J'son]

I got this second hand via SAU, there is a small chance something is wrong with it, even if was working fine for the previous owner... Things happen during tranit, car getting smashed, removal from old car, re-installation in to net car ect.

Ok so after some dramas, got it installed. At first the solenoid was setup wrong, and I had some wiring issues... Still not 100% happy with the wiring, but it should be ok (due to how was cut when removed before, and me having to reattach bits). And also some hassles with the boost gauge pressure line (still want to check and see if another spot that wanted to attach it is a good or bad choice or not too...but for now it is on the same spot the stock one comes off.<br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); "><br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); ">But so at first when the solenoid was wrong, there was no boost limiting, but i had aimed to start low, so worked it out as soon as went above stock boost (it has 3 ports, but you only use 2 at a time - 2 and 3 for internal wastegate, and 1 and 2 for external). Now that have the solenoid right, it boosts at stock levels. I then set each of the 6 memory slots with duty cycles 10, 20, 30, 40, 50, 60 (min is 10 max is 90, and read boost shouldnt increase until bout 20), yet at all 6 settings (With gain set to 0 as i have read everywhere, until i get my desired boost, then to slowly raise it until i begin to get a spike or overboost and then take it back a couple), i was still only getting stock boost.

I have tested the solenoid worked, from both the solenoid end and the units wiring loom. It clicks, and i've also tested blowing through one port, putting power to it and seeing that the air flow diverts to the other port, which it does. I have been told by the previous owner and confirmed with Gizzmo, that the solenoid has no specif positive and negative (both wires from it are grey), so i've not hooked it up backwards.

Maybe i still have something setup wrong? I can post pics if needed.<br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); "><br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); ">Advice, info, or someone in Canberra with the ability to have a look at it all with me?<br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); "><br style="color: rgb(28, 40, 55); font-size: 13px; line-height: 19px; background-color: rgb(250, 251, 252); ">Cheers

[W0rp3D]

you do realize there is 2 settings that you have to adjust, duty and gain, from memory the first setting controls the boost level and the second controls how fast the controller lets it get there, the higher the second setting the more chance of spiking.

[W0rp3D]

Is it this one? http://www.gizzmoelectronics.com/Product_MSIBC.html

[Moodles2]

Contact Ray at Gizzmo, he has always been helpful when I had problems with my MS-IBC

[J'son]

you do realize there is 2 settings that you have to adjust, duty and gain, from memory the first setting controls the boost level and the second controls how fast the controller lets it get there, the higher the second setting the more chance of spiking.

Dammit, I just typed a response and had the browser crash. This is most of what I said.

Yes know the settings, was told to set the duty with the gain on 0 then roll it up til it spikes then take it back 2-3 steps. However i have also tried with more duty, and decent level of gain. And nothing.

The solenoid appears to work as tested it with power at the solenoid and even did a blow pressure test to see that it changes ports. I also power tested it from the unit ends socket. And it clicks over still. I am pretty positive i have the pipes on the right ports, that the stock solenoid had already been removed from the car and that it is using the right lines from the manifold to the actuator.

The unit seems to be powered right as i can set it up, use the scramble button (to change through memories) and use it as a boost gauge (it seems to read 0.8psi higher than the good quality manual one i have still got installed also.

I spoke to Ray a little, but he seems a little more reluctant to help as i have a second hand unit that i was doing the install of rather than an autoelectrician or garage. I feel it is all installed right, but some one checking it over for me may be good as i may have done something simple wrong....

This is what Ray last told me "try cranking the duty up to 90 and if the boost doesn't rise hold power on the solenoid (whilst disconnected from the unit) and SLOWLY and CAREFULLY roll power on to see if the boost goes up. If not you'll have a mech fault", so next week will get a mate at work to help me make up a switch where can slowly wind in power into the solenoid from the unit end wire harness and see if that works so i know if the unit is not controlling the solenoid or if the solenoid just is not functioning.....

Edited January 1, 2012 by J'son

[Moodles2]

The MAC valve that came with my unit stopped working after 5-10mins on the dyno, but I haven't had a problem with my MS-IBC since then.

[J'son]

The MAC valve that came with my unit stopped working after 5-10mins on the dyno, but I haven't had a problem with my MS-IBC since then.

Can you explain more please?

[Moodles2]

The controller was sending pulses (confirmed by led test light), but the solenoid wasn't responding. Had to send the whole unit (controller + solenoid) back and got a new controller & solenoid which has been running flawless for 2 years.

[J'son]

So i should led test the controller? Since the solenoid seems to work.... But can test that as mentioned above.

[J'son]

BTW what sort of settings are you running on your unit and what levels of boost?

Cheers

[W0rp3D]

Im running 30 & 40 and getting 18-19psi with a gt3540

[J'son]

30 duty and 40 gain? I was told the gain should never be above the duty or will just get lots of spikes, but cool cool, thanks for the info.

I'm still running the stock S2 turbo, so aiming for 11 psi and a low boost of stock 6-7 psi.

Cheers, will run some tests asap.

Jase

[QWK32]

Funny you said your unit is reading pressure slightly off, my MS-IBC reads about .12 bar lower than my gauge.

You won't get anywhere copying someone else's settings, it all comes down to the setup ie good exhaust flow, tune etc.

My gain figure is also higher than my duty by 5, 38 duty 43 gain. Basically I left the gain on 0 and lifted the duty until i hit my desired boost level of 1.5 bar, then kept lifting the gain till it started spiking, and backed if off a touch. There is no rule that says the gain has to be lower.

When you power up your unit can you hear the solenoid buzz (pulse really fast) for about a second? Mine does.

Edited January 3, 2012 by QWK32

[W0rp3D]

30 duty and 40 gain? I was told the gain should never be above the duty or will just get lots of spikes, but cool cool, thanks for the info.

I'm still running the stock S2 turbo, so aiming for 11 psi and a low boost of stock 6-7 psi.

Cheers, will run some tests asap.

Jase

I have heard the same but from what i read the duty relates to how much boost you run and the gain relates to how quickly it gets there, you up the gain too much and you get spiking, i played around with mine a fair bit and found that theory to be wrong, for some turbo set ups it may be that way but for mine (and QWK32) it is not, maybe its also down to the wastegate you run, maybe some are less responsive so need the control to come in earlier to compensate for that.

[J'son]

I have heard the same but from what i read the duty relates to how much boost you run and the gain relates to how quickly it gets there, you up the gain too much and you get spiking, i played around with mine a fair bit and found that theory to be wrong, for some turbo set ups it may be that way but for mine (and QWK32) it is not, maybe its also down to the wastegate you run, maybe some are less responsive so need the control to come in earlier to compensate for that.

Yeah, what you said is right on, duty is the boost (percentage of the time the solenoid opens), and the gain how fast, and if gain is too high, then you will get spikes, but that is odd that can get the gain higher than the boost, but if it works it works... The guys at gizzmo and all the forums i read before got the unit say it will often be bout 3 or so below your duty, but some also said it wont be much above 20-30 gain... *shrugs*

I wonder which reads off, the electronic gizzmo or the manual gauge... For you and for me as they both are different.... Opposite ways infact...

Any hoo, i did some tests with an electrician friend of mine, the solenoid is fine, the unit is not sending a signal to the solenoid though, so regardless of my settings, it is not sending the pulse to activate the solenoid at all... And there is the issue... Now to see if can get my money back cos got it off here..... or if can get it repaired or if i'm now out $200..........

[J'son]

Ok, my mate who does a lot of work on circuits and electrical items opened it up and we did a bunch of tests with the unit and car and he believes a transistor is blown as only 0.26v goes out to the solenoid... which is why that was.not even enough to trigger a test light.

Aside from that the unit is functioning, it just isn't sending enough power ta make the solenoid work (works as a gauge and the negative signal pulses then cuts when the unit is turned on, or air is blown in to the boost pipe, but it only triggers a 0.26v power from the unit).

[J'son]

Ok, my mate who does a lot of work on circuits and electrical items opened it up and we did a bunch of tests with the unit and car and he believes a transistor is blown as only 0.26v goes out to the solenoid... which is why that was.not even enough to trigger a test light.

Aside from that the unit is functioning, it just isn't sending enough power ta make the solenoid work (works as a gauge and the negative signal pulses then cuts when the unit is turned on, or air is blown in to the boost pipe, but it only triggers a 0.26v power from the unit).