Lund Boost Box

eighty6gt

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I have a friend, built an EBO X.

It has never ran. He has been harassing the shop to finish it for YEARS. They burned the car once due to screwing up the fuel system.

Learn from my friend:

a) fix it yourself
b) find a new shop
 

JG-1

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I have a friend, built an EBO X.

It has never ran. He has been harassing the shop to finish it for YEARS. They burned the car once due to screwing up the fuel system.

Learn from my friend:

a) fix it yourself
b) find a new shop
Ain’t that the truth!

Well, I finally got ahold of them. Had to message them on Facebook...grrrrr. Anyway, dropping it off Friday.
 

JG-1

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Didn’t bring it to Evo. They are acting like they don’t want to be bothered. Threatening to charge me to fix the issue. Assholes.

I did a datalog for Lund and they said everything looks good and the car is making boost. Now, I have to do a video of the Ngauge while at WOT to send to Lund.
 

JG-1

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Question for you guys. Should I be making boost as soon as I hit the pedal? Like a medium roll from 2k to 6k rpm, should the car be making boost? Or only when at WOT?
 

01yellerCobra

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You'll have some boost past half throttle I want to say. I know at 3/4 throttle I see 8ish PSI out of my set up. Full throttle gives me the full 12psi. Basically once you go past 0" vacuum you should start seeing boost. Even if it's only 1 or 2 psi.
 

JG-1

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I made a video of what I’m seeing on the gauge. In real time it doesn’t appear like the gauge is reading correctly, but if I go frame by frame I can see it reaches 12psi. So I guess it’s working correctly?
 

eighty6gt

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When I'm blasting along in my cruddy 3v, I see 10-11 psi for quite a while thru 3500-6500+ rpm. On a similar digital gauge.

I believe due to that saying "analog1" there's a pressure sensor somewhere in your system and that the reading is not inferred from the fuel pressure sensor.
 

JG-1

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When I'm blasting along in my cruddy 3v, I see 10-11 psi for quite a while thru 3500-6500+ rpm. On a similar digital gauge.

And that’s what I would expect to see on mine. According to Matt Honeycutt, from Lund, who designed the boost box, the unit appears to be working as designed without issue. So idk. Seems not right to me but being told it’s right.
 

eighty6gt

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how much are you paying lund these days? They might be hoping you just go away.

Maybe find a lund user forum or someone else who has a "boost box" and determine if they experience the same behavior.
 

JG-1

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how much are you paying lund these days? They might be hoping you just go away.

Maybe find a lund user forum or someone else who has a "boost box" and determine if they experience the same behavior.
Exactly.

I’m hoping someone with experience with the nGauge/boost box combo sees this and comments.

I am taking my car early next week to a local Mustang shop for brakes and I might ask them about it while the car is there.
 

01yellerCobra

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Throw in a cheap mechanical gauge to verify you are making boost

This.

Hi. The car made 801/650 at Evolution.

That had nothing to do with him saying to throw a cheap mechanical gauge on it.

Did the dyno graph say 3psi (via sample port)? If it did, I would drop that all over the mopar forums and walk out.
:troll3:

So the boost reading is accurate?

I wonder if they'll install a mechanic boost gauge and verify boost pressure

Did anyone else notice a trend?
 

JG-1

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Is the mechanical gauge still warranted being the nGauge showed 12psi?

I’d have to order one as I don’t have one.
 

01yellerCobra

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Is the mechanical gauge still warranted being the nGauge showed 12psi?

I’d have to order one as I don’t have one.

Honestly, I would just to make sure everything on the blower side is working as it should. If you have an Autozone or O'Reilly's by you they should have a cheap "performance" gauge on the shelf.
 

RocketcarX

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Honestly, I would just to make sure everything on the blower side is working as it should. If you have an Autozone or O'Reilly's by you they should have a cheap "performance" gauge on the shelf.
I would install the cheap boost gauge in the same port you car using for the Boost Box, this will tell you if location is the issue with your sensor reading. If it shows 3psi then you know you need to move the sensor for the Boost Box
 

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