Boost Controllers

[newsh]

The day I have a Japanese boost controller fitted to my car you can give me a dry bumming with a lambda probe.

Each to their own - love, peace, whatever etc etc ! Life is too short...


Paul

I had fun reading this old thread again

I was wondering how to control boost on my car with the new pipe and 3071r untill I can get to MRC, Mihnea has said I should run it with the WGFV unplugged as there'll be possible surging and too much boost on the current map. The spring should give around a Bar and I was wondering how to turn it up "just a bit"

[audiman]

fit 2 springs? lol or just tweak the spring down a bit John (that was serious!)

@Mastermind, there must be a tuner in SA that can do the required tuning for you??? If not then get the chips from 034 and the same injectors.

SURGE is a massive problem on these GT turbos, if you run the turbo in surge for too long it will kill it. BTDT.

Aftermarket boost control will work ok, however, it wont alter the timing map, which is what it will need with that turbo.

Try using a simple bleed valve, will work ok as a test. What about your engine? Do you have uprated rods? If not, dont mess with boost, those turbos will boost hard low down and could bend your stock rods, even a pushed RS2 setup can do that.

[mastermind]

fit 2 springs? lol or just tweak the spring down a bit John (that was serious!)

@Mastermind, there must be a tuner in SA that can do the required tuning for you??? If not then get the chips from 034 and the same injectors.

SURGE is a massive problem on these GT turbos, if you run the turbo in surge for too long it will kill it. BTDT.

Aftermarket boost control will work ok, however, it wont alter the timing map, which is what it will need with that turbo.

Try using a simple bleed valve, will work ok as a test. What about your engine? Do you have uprated rods? If not, dont mess with boost, those turbos will boost hard low down and could bend your stock rods, even a pushed RS2 setup can do that.

I have uprated conrods and its Mapped to 1.75 max boost by FRC the SA tuner.
However the N75 doesnt seem to be quick enough to control boost as it spikes to 1.9bar at WOT and then has to tapper off to 1.3bar at red line . If we try and MAP it to anything above 1.5bar at redline it has a sudden boost cut at 6500rpm.

The chipset and matching injectors from Javad are the saving grace, if I cant come up with something I can have the local guys tune here in Cape Town.

I may look at the VEMS as it seems to cost just a little more than the HKS boost controller, but I am worried about open source and backup availability.

[A80Avant]

initially when i had the 3071R turbo and the old map,i bought a 2way turbosmart adjustable boost controller and i made it not go over 1bar of boost.That way i had wot with plenty of fuel(original injectors initially) so not to have big EGTs and used that method to go to germany for the tuning.After the tuning of course i did get some surging as well,but with a little tweek,i have no spikes,use the N75 and i usually never go wot on lower revs,as it tends to surge more.If i go WOT at about 3500rpm it is fine.

[newsh]

Cheers Tom, yes tweeking the spring down will do for me till I get up to see Mihnea.

[gedu]

I have uprated conrods and its Mapped to 1.75 max boost by FRC the SA tuner.
However the N75 doesnt seem to be quick enough to control boost as it spikes to 1.9bar at WOT and then has to tapper off to 1.3bar at red line . If we try and MAP it to anything above 1.5bar at redline it has a sudden boost cut at 6500rpm.

The chipset and matching injectors from Javad are the saving grace, if I cant come up with something I can have the local guys tune here in Cape Town.

I may look at the VEMS as it seems to cost just a little more than the HKS boost controller, but I am worried about open source and backup availability.

If you are going for completely another ECU, remember to check that some tuner "local" to you is willing to tune it. You can do fuel mapping "quite" easily with VEMS, but you do need know what you want, and how it's done in VEMS. (Or any other aftermarket ECU too). Ignition mapping is something I would leave to someone who really knows what he is doing

Siemens injectors have been run on many VEMS cars, so configuring those for VEMS isn't a problem.

[mastermind]

Cool, thanx for the advice guys.