General Supercharger Thread

And what fuel pump are you running?

 

Walbro 450.

 

You connect the other analog input from the prolink to the white wire coming from the map sensor, then create a new vcm channel using @blenton 's formula: (Input / .0689655 ) + (-21.75) = Output

 

Beautiful, many thanks!

 

Idk what the fuk is going on then Parameters in logs are great hit peak of 10ish psi but DC in 80s in 10's I give up lol. Is this spraying meth?

 

Have you tried pulling fuel in the MAF table? I have my PE at 1.4 almost across the board targeting 10.44 with A/F almost dead nuts commanded. I just add/take a few percent at MAF Volts. Seems to keep A/F pretty consistent.

At same time my MAF curve looks funky but I believe it's the initial surge and then leveling out once boost is built.....I think lol

 

Yes. Although before adding that to the mix it's pretty near that. I'm not doing 50% mix only 30% for cooling. It richenss afr's at about .3 to .5 difference.
Hmmm

 

Gottcha that makes sense.

 

Deaschwerks 380, after 2 direct from Walbro 450s and no semblance of customer service I said take your pump & shove it

I did become a master tank r&r craftsman.

 

I was thinking that I'd try pulling it from PE first and if the adjustments are to coarse, then work on the MAF table. My PE values are very low, I can't look at them atm as I don't have access to my truck which has my cord/MPVI2+ in it.

 

Understood. I tried PE but with boost reference I was having a hard time with A/F. Then again I'm the only dumbass with 750s hitting such high DC so who knows

 

FIFY…Only cause that’s what both I and @ZPhilip have, and well, I like accuracy.

 

I may encounter the same time nailing the AFRs that I want but I won't know until I mess with it. There are so many variables, we may each be seeing what's normal for our particular variables. My truck may come closer to mimicking yours once I try things at a similar elevation.

 

It was the one suggested via an old FB post posted by someone from Matt the SC guru

 

That is true. When I dropped from 5k to 3k elevation I had to richen up PE. That's when I decided to flatline PE and mess with MAF instead. Last fishing trip went from Denver to Deckers and A/F did not stray thank god

 

I'm a total newb at tuning and try different tweaks. But...wind up reverting back to @snivilous for some guidance and his thought process on getting a desired outcome.

 

The tank and you become one...haha
I've had decent luck with the 450 mod 267. Hope I don't jinx it.

 

Do not get me wrong I'm a weekend warrior tuner throw it and hope it sticksTaking what @snivilous told me and winging it And bullshit you know what you're doing you ain't tricking me lol

 

Does the MPVI3 not let you touch anything emissions related.. I’m assuming as far as CEL triggering goes?

 

No, you can, you just have to take a free course on their site to enable the emissions-related stuff. They don't corrupt or brick anything forcing you to upgrade, it's a course so they can cover their ass and tell the Feds "he took the course and signed the waiver, sue him, not us."

 

I thought that all that was needed was for a person to go through their Advanced Parameter Training, then they could.
https://www.hptuners.com/emissions/

 

Thanks! I was going to search for a DW 380 later tonight and check out its specs.

 

Ah yes, I think I remember that detail now. This is why asked. “You can’t believe everything you read on the internet.”

 

Both of mine were 267, When I was doing it weekly, I had it down to 20 minutes. Not a skill I want & I'm thrilled to not have touched it in almost a year!

lol

 

My 750s run high DC. I'm at 5500ft making 8psi and my 750s with boost reference are at 80%. If I drive down the hill to 2500ft and make 10-11psi then DC is at 90+ last I checked.

As @e30cabrio said, his is insanely low, but I look at cases like that as "well it's not broken and AFR is good so no point spending brain power on it". @Fastlane47 is a similar case, though his tune we're still dialing in. But boost referenced 750s and maxed duty cycle at like 6000rpm and nowhere near the AFR we wanted, he goes to 1000cc boost referenced and now it's at like sub-70% at 6800rpm----sure they're bigger injectors but they disproportionately decreased duty cycle.

All of that to say, your duty cycle doesn't sound off to me. But there's a lot about the tuning I don't understand, and I just take each vehicle on a case by case basis. Maybe I just suck at tuning, but it's actually quite rare that a truck is straightforward to tune, the amount of variations is amazing. For every truck that is a walk in the park to tune, another takes 20 iterations to get to run consistently and similar to another truck. To make matters worse, my own personal truck is one of the special walk in the park tunes, I could set it up 35 ways and it'd be happy as a clam which just makes it really hard to try and reverse engineer why other tunes act the way they do.

 

Thanks @snivilous not gonna lie thought I had something jacked off in fuel injector table somewhere. But fueling, trims, knock feedback looks great going off your methods. Even been able to add timing with zero knock feedback after KCL settle. And you know exactly what's going on with tuning these damn trucks come on man!

 

MAF Sensor Update - UPS changed the delivery date to Monday, but they are in transit (no these are no overseas cheapo knock offs). These are from Michigan! Anyway, as long as they come in early enough Monday, we should be able to turn all order shipments around same day. Thanks again!

 

Yeah buddy!

 

We figured no one would mind, as everyone loves videos!!! But if anyone wants this removed, just ask!

Just dumped a bunch of videos on our YouTube channel. Here they are as well.

Our Channel - https://www.youtube.com/channel/UCSPo3Lfg5o3Vi46mWA58N0A

Install, Rev and Drive T51R Mod on the 2014


2014 Stage 1 DYNO Run


2019 Stage 1 DYNO Run


2019 In Cab Drive


2021 Stage 1 DYNO Run


2021 Stage 1 DYNO Run *Open Dump


Quick Drive in the 2021


Messing with the 2008 and the intercooler on the DYNO, no numbers and this is from over a year ago, but another one in the stable running turbo. This is a 2008 with 230K


2008 Offroad Mudding Fun w- Boost
https://youtube.com/shorts/CSEKST1zK8U?feature=share

Something else fun we are working on!

 

No complaints here!