mberenis

iTrader: (5)

What kind of boost controller are you using?

I am close to finishing my build and before I go get tuned by John / Jestr at Titan Motorsports, I thought it would be a good idea to upgrade the oem ebcs to the GrimmSpeed three port electronic boost controller.

From what I've read, this is really the way to go. GrimmSpeed says it gives 10% more flow which in return gives you more precise boost controller and a quicker spool. Plus it has an OEM harness and built in resistor so I don't have worry about screwing up my ECU.

• I'm curious if anyone else out there in EvolutionM-land is running this boost controller and what you think about it. Did it really improve spool? Was it easier to tune?

• Any tips for tuning that I can let the guys know at Titan when I go to get tuned? Anything good/bad to watch out for?

• What is the general consensus about the GrimmSpeed three port EBCS? Is this a quality part or did I mess up when I ordered it?

• If you aren't using a GrimmSpeed three port, what are you using instead? Also, anyone still using a MBC? I ran a mbc on my WRX and I liked it. I never really pushed it as hard as the Evo though so I think i need an ebcs so I can get all out of it that I can. The WRX never ran 28+ psi, hell the most I got out of that was 18-20 pounds, 23 for ****s and giggles but then I'd turn it down. The evo is serious boost and I think an electronic boost controller is really the way to go.

Here's the review video I made when I got the part:

Here's the install video I recently made (updated 2/13/13)

Thanks for your feedback! I'm really pumped to get my car back on the road. It has been about two months now since I installed cams and introduced my valves to my pistons they didn't get along very well.

MaxedEvo

great review!

mberenis

iTrader: (5)

Thanks bro!

RussellDaniel

iTrader: (9)

I was using the same. Grimmspeed. Loved it.

dastallion951

Go 3port, that grimmspeed is nice, im using a gruppe s. Ive ran dejon toolmbc and profec b spec 2 ebc. Like gruppe s out of all 3 no problem, knobs to turn, electronics to go bad. Plus 3port workin with ecu allows same boost in different temps....

foxbat

I'm not sure the terminology is correct here, Grimmspeed offers a 3-port solenoid not a full, dedicated EBC, you still have to control/adjust boost through the ECU? I've used their 3-port solenoid on a 2008 STi & I tuned boost through the ECU setting it up at 27psi, GT3076, it worked like a charm, I'd recommend it.
Good EBCs that I have noticed on cars that I tuned, were the HKS EVC6, precise settings & extremely accurate digital boost gauge. Turbosmart also offers an excellent EBC, (kind of expensive though).

Ted B

iTrader: (6)

...and allows one to set the boost as he wishes for different gears.

mberenis

iTrader: (5)

Great feedback everyone thank you for your input! Thats pretty cool we can set boost by gear too. That makes a big difference in safely tuning for power too.

Here is a positive note i got on the video that is very inspiring in regards to quicker spool:

"You'll love it once you get it installed and tuned. I have one on my VIII, went from hitting full boost (23psi) on the stock solenoid @ 3500, to 24psi @ 3250."

mrfred

iTrader: (50)

i'm always impressed with how the grimmspeed is universally loved on evom. its a great 3-port, but the gm does everything as well or arguably better than the grimmspeed at half the price. the thing about 10% more flow is meaningless. there are mac solenoids that way outflow the grimmspeed and gm but they suck at boost control. the real truth is that there is a sweet spot for flow and the gm and grimmspeed are right in there. also, the resistor issue is a red herring. i'm not aware of a single blown boost control circuit from running a resistorless gm on an evo. the good news is that even at twice the price, the grimmspeed is still a low cost mod.

MrJuls

I'm using a Perrin 3-Port.Never had any issues with it.

ReaperX

iTrader: (5)

LOL that was me. Are you planning on tunning it yourself or having someone else?

mberenis

iTrader: (5)

I was going to tune it myself, but I have so much $$ wrapped up in this car and a lot of stuff has been changed I think I'm just going to take it to Jestr at Titan Motorsports in Orlando.

I will make tweaks to the map though to at least get it there. I read in the instruction manual it is a 30% reduction of WGDC for this boost controller. Is that that value that you used? I don't want it overboosting on my way to get tuned

ReaperX

iTrader: (5)

If your on a factory rom, set the WGDC to 0%. If you're on a V7 rom do the same as well as set the WDGC Always 100 Below This Load to under 100, it is under the global boost control settings header.

This will allow you to just run wastgate pressure. No worries of an overboost.

On the stock solenoid I was 100% WGDC to get 23psi. At the moment my curve is 68% at peak boost, to 62.5% at 5k, and 74% at 7k. I peak 24psi @ 3200, creeps to 25 in the mid range, and tapers to 22 by 7k. I use load based boost control at the moment on V7, I am able to hold a flat 260 load from 3250 to 6000.

mberenis

iTrader: (5)

Thank you sir I appreciate the info!

SmurfZilla

iTrader: (33)

Had a tactrix before. New car. Bought another one.