3-Port Boost Solenoid vs MBC

Reply Subscribe

Thread Tools

Search this Thread

Dec 2, 2009 | 09:35 PM

#16

Clipse3GT

Account Disabled

iTrader: (10)

Joined: Dec 2005

Posts: 2,185

Likes: 2

From: Cleveland, OH

Quote:

Originally Posted by UT_EvoX

I paid $90... and it's plug-and-play. With fittings and bracketry.

Fact of the matter is that it controls my boost curve just fine, consistently. What else matters? You're not talking to some guy who pays somebody to tune his car, I datalog and tweak things almost every day of the week. This boost controller works fine. There's nothing wrong with the GrimmSpeed EBCS and it's completely worth the ~$100 price tag for being plug-and-play.

Care to share what your solenoid table looks like. I want to see if there is a difference in duty cycle to the other two valves I tried.

Dec 2, 2009 | 10:51 PM

#17

chriswolf81

Evolving Member

iTrader: (3)

Joined: Jul 2008

Posts: 313

Likes: 0

From: Santa Fe, NM

Any reason nobody recommends the perrin? I was leaning toward it.

Dec 2, 2009 | 11:04 PM

#18

stokEd

Evolved Member

iTrader: (3)

Joined: Sep 2008

Posts: 1,271

Likes: 1

From: Denver, CO

Quote:

Originally Posted by chriswolf81

Any reason nobody recommends the perrin? I was leaning toward it.

Here's a good thread if you're shopping for 3-ports: BCS Testing Data

Dec 3, 2009 | 04:19 AM

#19

MicMcKee

Evolving Member

iTrader: (8)

Joined: Sep 2009

Posts: 314

Likes: 0

From: Outside Ellicott City, MD

I ran the GrimmSpeed on my WRX build and it was great,

I'll be going that route when I get my Evo tuned...

Dec 3, 2009 | 09:05 AM

#20

chriswolf81

Evolving Member

iTrader: (3)

Joined: Jul 2008

Posts: 313

Likes: 0

From: Santa Fe, NM

Quote:

Originally Posted by stokEd

Here's a good thread if you're shopping for 3-ports: BCS Testing Data

Very interesting. Im still kind of lost. What are the benefits of GM over Perrin?

Dec 3, 2009 | 09:48 AM

#21

UT_EvoX

Evolving Member

Joined: Oct 2009

Posts: 438

Likes: 0

From: SL, UT

Quote:

Originally Posted by Clipse3GT

Care to share what your solenoid table looks like. I want to see if there is a difference in duty cycle to the other two valves I tried.

Code:

2000    80
2250    80
2500    70.5
2750    70
3000    66.5
3500    66.5
4000    70
4500    72
5000    76.5
5500    95
6000    100
6500    100
7000    100
7500    100
8000    100

That's for 4500 ft in the sky... we need a lot more duty cycle up here to achieve the same boost levels. That gets me 28 psi at peak torque and 20 psi at redline. My experiences from visiting lower places is that that would become 30+ psi and 22 psi at sea level.

Dec 3, 2009 | 10:07 AM

#22

stokEd

Evolved Member

iTrader: (3)

Joined: Sep 2008

Posts: 1,271

Likes: 1

From: Denver, CO

Quote:

Originally Posted by chriswolf81

Very interesting. I'm still kind of lost. What are the benefits of GM over Perrin?

Ah, my bad, I thought in that thread the Perrin/Ingersoll-Rand ultimately made into the test, but it didn't. If you really wanted to find out the performance difference between you'd have to find someone who's used both and get their opinion. Outside of that, the only difference is that the GM at ~$70 (w/PnP harness) is less expensive than the Perrin.

Dec 3, 2009 | 11:44 AM

#23

Clipse3GT

Account Disabled

iTrader: (10)

Joined: Dec 2005

Posts: 2,185

Likes: 2

From: Cleveland, OH

Quote:

Originally Posted by UT_EvoX

Code:

2000    80
2250    80
2500    70.5
2750    70
3000    66.5
3500    66.5
4000    70
4500    72
5000    76.5
5500    95
6000    100
6500    100
7000    100
7500    100
8000    100

You don't have a weird spike occur at 100%? Most people drive it to 99%.

Dec 3, 2009 | 12:11 PM

#24

UT_EvoX

Evolving Member

Joined: Oct 2009

Posts: 438

Likes: 0

From: SL, UT

Quote:

Originally Posted by Clipse3GT

You don't have a weird spike occur at 100%? Most people drive it to 99%.

*shrugs* nope, this is my boost curve in 4th gear:

Name: ebcs_boost_wgdc.jpg
Views: 0
Size: 38.2 KB

Dec 3, 2009 | 01:42 PM

#25

Clipse3GT

Account Disabled

iTrader: (10)

Joined: Dec 2005

Posts: 2,185

Likes: 2

From: Cleveland, OH

Quote:

Originally Posted by UT_EvoX

*shrugs* nope, this is my boost curve in 4th gear:

Looks good.

Dec 4, 2009 | 09:04 AM

#26

criptballer

Evolving Member

iTrader: (3)

Joined: May 2008

Posts: 472

Likes: 0

From: Utah

glad to hear the Grimmspeed works well since i'll be installing it today haha. any tips?

Dec 4, 2009 | 09:17 AM

#27

MicMcKee

Evolving Member

iTrader: (8)

Joined: Sep 2009

Posts: 314

Likes: 0

From: Outside Ellicott City, MD

It's pretty straight forward, you getting a tune?

Dec 4, 2009 | 09:29 AM

#28

criptballer

Evolving Member

iTrader: (3)

Joined: May 2008

Posts: 472

Likes: 0

From: Utah

i expect it to be, but just making sure haha : )

Dec 4, 2009 | 10:15 AM

#29

UT_EvoX

Evolving Member

Joined: Oct 2009

Posts: 438

Likes: 0

From: SL, UT

Quote:

Originally Posted by criptballer

glad to hear the Grimmspeed works well since i'll be installing it today haha. any tips?

If you use the values I posted above in your active/primary WDGC table and taper it to the left, you should be set for a 27-28 psi tapering to 20 psi at redline tune. It sometimes spikes to 30 psi.

Be cognizant that you will NEED to retune that map if you take the car down to sea level or near (Vegas for example). I would drop all wastegate duty cycles 10% for Vegas, and 20% for sea level. The active wastegate control will effectively do the same if your BTEL maps are good, but I would drop them regardless just to be safe.

If you want a copy of my current tune, just PM me. I'm not opposed to sharing this tune at all...

Dec 4, 2009 | 10:26 AM

#30

XEVOX08

Evolving Member

Joined: Apr 2009

Posts: 378

Likes: 0

From: queens

I have the AEM tru boost controller. It has this 3 port solenoid is this like the gm one? I spike 27 hold 19 forge wga..

Reply Share

First
Prev
2 / 7
Next
Last