Vipec V44 Boost Control?

[Mark-32]

Just wondering what peoples thoughts are on this.

I will be winding the boost up on my built 26 engine in a couple of weeks, just dont know if im better of geting a bleed valve and dyno it that way or buying a electronic solenoid and doing it through the ecu.

Havn't heard much about the boost control setup of the vipec ecu hoping someone with some knowledge can fill me in.

The engine has recently been run in and has -5's fitted with all the supporting mods.

Im looking to run up around 20-24 psi

Edited June 10, 2010 by Mark-32

[TiTAN]

i havent had any problems with it, mine gains 1psi in the midrange before falling back to the set PSI by redline, though i am running a single with external gate and havent fiddled with the finer points of the boost control (you can set the mac valves duty for every 1000rpm or which ever intervals you want to set it up as within the maps total cell limit)

[Mark-32]

i havent had any problems with it, mine gains 1psi in the midrange before falling back to the set PSI by redline, though i am running a single with external gate and havent fiddled with the finer points of the boost control (you can set the mac valves duty for every 1000rpm or which ever intervals you want to set it up as within the maps total cell limit)

Is there any particular solenoid i need to run with the vipec?

[TiTAN]

just a standard mac valve, should set you back ~$90 from memory.

[Mark-32]

just a standard mac valve, should set you back ~$90 from memory.

Is it possible to run a high and a low setup? Like an in cabin switch- low being what the actuators run standard, and high being what ever psi we tune it for?

[TiTAN]

if you put the switch inline with the valve to turn it off so you run actuator pressure yes.

[Mark-32]

if you put the switch inline with the valve to turn it off so you run actuator pressure yes.

This may seem like a dumb question but what does the 'mac' stand for when you say mac valve?

Im assuming a mac valve is just an electronic boost control solenoid....? And its this that gets wired directly to the ecu and the ecu controls it and does the rest?

And if I run the in cabin missle type switch inline with the valve i could turn the valve on or off with the switch?

On being the high boost setting, and off being stock boost?

Sorry for all the questions just trying to nut it all out!

[TiTAN]

mac is the brand.

[Mark-32]

mac is the brand.

Anyone know where i can get one of these from?

[STATUS]

http://cgi.ebay.com.au/MAC-Solenoid-Valve-...=item2c5489223d

Turbotech has them in stock $12 a pop

[Mark-32]

http://cgi.ebay.com.au/MAC-Solenoid-Valve-...=item2c5489223d

Turbotech has them in stock $12 a pop

Legend mate.

Man that was easy Its on its way $15.50 to my door.

[Mark-32]

http://cgi.ebay.com.au/MAC-Solenoid-Valve-...=item2c5489223d

Turbotech has them in stock $12 a pop

I forgot to ask will this be ok to use with two wastegates? 2860 -5's? Just had a look on the vipec website and there are two types of mac valves?

[soturi]

If you don't mind me asking...what would i expect to pay for unit + tune? (allow plenty for worst possible circumstances)...

I went to a rather big name workshop the other day and was greeted with blank stares when i asked if they tune vipecs....but i really want to jump on board....

Aiden

[TiTAN]

depends on the workshop. for the ecu + tuning & install on top budget around 3k +/- a few hundred if they run into issues.

[Guilt-Toy]

You can use a R33 GTST RB25DET standard solinoid with the vipec also.

You can use the RB26DETT solinoid as well. (better then rb25)

I tuned a car last night, it was using a solinoid that looks like the mac valve but it was stolen from a cheap chineese boost controller and it worked fine.

The car was running a 6psi spring in the external gate and i was able to get it to push out 26psi of boost with the vipec boost control.

Also if you want to have dual boost settings its very easy to setup, you setup a switch and wire it to Digital input 5 or 6 and then setup the vipec to run 2 maps for boost control which is changed just by flicking the switch.

Very simple to setup and works very good.

[TiTAN]

i wasnt aware that it had dual boost maps. Though it ties up a digital input which on the plugin version there is only 6 from memory and they are useful for other things like launch control/flat shifting/switching fuel maps. installing a switch inline with the valves signal wires means you just run gate pressure when the valve isnt powered (if that is what you are after in your dual boost setup.)

[Mark-32]

i wasnt aware that it had dual boost maps. Though it ties up a digital input which on the plugin version there is only 6 from memory and they are useful for other things like launch control/flat shifting/switching fuel maps. installing a switch inline with the valves signal wires means you just run gate pressure when the valve isnt powered (if that is what you are after in your dual boost setup.)

Yeah I think thats the way to go by just running the inline switch to the valve. Seems pretty simple.

Can anyone explain how the launch controll works? Never looked into this function but Im very interested in this as my rb26 is converted to rwd and this could be very usefull for me.

I would also like to set this up at the same time i retune the car to wind the boost up.

I must say I was already impressed with the vipec unit after my initial run in tune. It continues to impress me and i have only ever used power fc before and not bagging the pfc but compared to the vipec they are worlds apart.

Any info on the launch control setup would be greatly appreciated.

Cheers for the info guys.

[TiTAN]

you need to connect the switch at the top of the clutch pedal up to a digital input on the ECU (get someone electrically minded to do this it requires some rewiring of 12v supply etc), you can then setup the launch control/flat shifting to work when the clutch is pressed. my launch control activates after the clutch is held for 10 seconds, and my flat shifting activates over 3500rpm with more than 50% throttle. all of the settings can be changed to suit how you want it to operate.

[s2d4]

pretty sure the vipec's launch control is based on speed. As for flat shift, I only know of the bosch shift sensor setup.

you need to connect the switch at the top of the clutch pedal up to a digital input on the ECU (get someone electrically minded to do this it requires some rewiring of 12v supply etc), you can then setup the launch control/flat shifting to work when the clutch is pressed. my launch control activates after the clutch is held for 10 seconds, and my flat shifting activates over 3500rpm with more than 50% throttle. all of the settings can be changed to suit how you want it to operate.

[TiTAN]

if you have speed inputs from the front wheel/s you can do traction control with the launch control, my launch control is activated (armed ready to go) after the clutch is held for 10 seconds, then you can mash your foot to the floor and drop the clutch.