reno928s

I have both units, which one of those would you install? The only neg that I heard of was with the LR unit, but I can't recall exactly what it was. TIA, Reno

Thom

I had many issues with the reliaboost ; boost spikes & inconsistencies.
I did not try the LR unit but I gave one I had to a friend who is well satisfed with it.
Currently very satisfied with an accuboost.

t34418l31

sell both and buy an accuboost. i have one, it works great.

KuHL 951

+1 The others are just boost enhancers, not boost controllers.

Acetylene

I had a LR boost Enhancer on the 951 and liked it. Now I have one on my 06 F350 and i still like it

Bri Bro

1+

UAZJ1

OT: LOL, go to accuboost.com. Not quite what I was expecting.

RPHARRIS

Joe P inline MBC works great and costs next to nothing!

hosrom_951

There is a review in the archives for someone who used the reliaboost as a boost controller, bypassing the Cv and such, don't recall what were his thoughts over all.

The LR unit is designed to work WITH the cv installed, not as a boost controller.

Keithr726

I'd like to read that. I've been thinking about installing my MBC with LBE because of the spool up characteristics.

lart951

Accuboost all the way, I have one for sell if you are interested.

KuHL 951

IIRC, you don't want to do that. It would be like running the Autothority jetted banjo bolt with any type of downstream boost control except the stock CV. They aren't made to work together.

Keithr726

yeah, I just did a search and decided against it. I think MBC with the lindsey dual port wastegate will be good enough.

RKD in OKC

If you are going to use an MBC do not use the LBE. It is totally unneccesary.

The CV sends pressure that starts opening the wastegate at as little as 2 psi when building boost. The LBE prevents the boost pressure that goes thru the CV from reaching the CV until 10 psi at factory setting. This allows boost to build faster with the CV still controlling maximum boost.

An MBC does not send pressure to open the wastegate until it reaches the set pressure of the MBC. Keeping pressure from reaching the MBC before a set pressure does nothing as it does not open until the set pressure in the first place.

I feel wordy today so I will continue...

The problem with an MBC is that it does not send the signal to open the wastegate until the maximum pressure set at the MBC is reached. It takes time for the wastegate to open and in that time boost increases past the set point. The MBC keeps the wastegate open until boost pressure drops below the set pressure, then opens again. This cycle repeats until the pressure is finally regulated. In valve design this is called hysteresis. The initial boost reached before the wastegate can react to the signal from the MBC is called a boost spike. Depending on your setup this spike can be either large or small, or your max boost may be that spike.

This problem is addressed with most electronic boost controllers. Infact, this is why the stock CV control opens the wastegate so early. In most EBCs there is an adjustment called the gate pressure. This is how close to the set boost pressure to start opening the wastegate. Too close and boost spikes, to early and it is slow to build boost.

The problem with most EBCs is understanding how they work when setting them up. EBC's do not have direct feedback. That means they are not actually maintaining a set pressure. Instead they are cycling a solenoid that maintains boost pressure. You have to intially set the EBC at the frequency of cycling the solenoid that maintains your desired boost pressure. The stock system of boost control is actually an EBC.

EBC is done this way for 2 reasons. One is the EBC reacts faster without having to interpolate the pressure to solenoid cycles. The second is the electronics are much cheaper to not do feed back inerpolation and calibration. It would be nice to just dial in 15 psi of boost and go, but would you pay $700 for it?

reno928s

I connected my reliaboost from the banjo bolt to the wastegate with a new direct line bypassing the CV and plugging the cv hole. Can the accuboost lines run the same way that I currently haver the reliaboost running?