Best Boost Controller

[Duncan]

Hi ya'll.

I need to get hold of a good boost controller, but it needs to have an output so that I can log the boost level. I already have a logger with my wide band 02 sensor.

Any suggestions who makes something good?

[InterCooL]

logging boost level has little to do with a controller

e.g aftermarket computer usually can do this, best get one with a map sensor this way you can map rpm verse boost and see the whole thing (vs a/f ratio etc)

you could get an ebc with a max boost peak recall, or even just a defi gauge (or similar) that has a peak boost recall. but it wont tell you when it happened or for how long

Edited May 3, 2007 by InterCooL

[dead32]

the apexi el2 boost gauge with the control unit, has a boost recall. not sure for how long etc though..

[Birnie]

If you're hooked up thru the Power FC, the FC Boost Kit must allow you to log it thru Datalogit.

That's assuming you have Powefer FC and logging software, but that's a big assumtion

[Duncan]

Yeah I have standard ECU and a mechanical boost guage, neither of which are any good for me....unless of course I can use that map sensor that the standard boost guage uses (on the firewall).....anyone know what it outputs?

I don't just need peak recall, I need regular output to a proper logger (eg 10x a second). Required by the regs of our race category.

[Beer Baron]

yeah duncan, for the logging you will need a map sensor that can input to your logger. the factory map sensor should do the job. if you want another map sensor I have one here, you can have it for free (I still owe you for some sun visors from eons ago). I bought it when I though my map sensor was dead (turns out I was wrong). I use a defi gauge which doesn't just have peak, it records. can only record 5 minutes at a time, but it's cool cause I can do a few laps with it recording, then pull into the pits and play it back and watch boost, oil pressure, oil temp and fuel pressure in real time.

as for a good boost controller the HKS EVC IV and the Blitz SBC ID III are both supposed to be very good. I use a Greddy Profec B II and it holds my boost flat as a tack, so for me it's a very good controller. and they are cheap.

[Beer Baron]

here is the boost curve. it don't get much more stable than that and it brings on boost early, and hard.

[Duncan]

yeah I wouldn't be looking to run much boost either, 12psi when racing and 16-18ish when not running under 3e regs.

speaking of the standard map sensor, it doesn't seem to go to the ECU? is it only used by the stock boost guage?

[dead32]

its only used for the cluster, yes

[rb26s13]

Blitz SBC ID III has an awesome logging setup i had a fittle with one in my flatmates 180 and its awesme with its datalogging capabilities

[Beer Baron]

yep, it's cluster only. i've pissed mine off since running the defi gauges and never looked back

if you want this map sensor dunc, just give me a yell and I'll pop it in the mail for you to play with.

[Duncan]

nah its cool I've got mine still installed.

Can't find any info on the voltage output of the Map sensor or its range in the manual, I guess I will need to calibrate the output against the boost guage manually. Hope it doesn't max out at 14psi or somethign.

[Duncan]

I had a quick look at these, the "data logging" seems to be the same as the defi guages, ie the guage itself can play back what happened.

I need an output of boost level that I can run into my data logger insead

[rob82]

Just check the signal pin of the map sensor at ignition on - if its 2.34 volts then it only two bar which means it wont read over 15psi. I wouldn't think its over two bar though.