Most boost on LY6 with MAF

Reply Subscribe

Thread Tools

Search this Thread

Jan 15, 2015 | 08:16 AM

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

Most boost on LY6 with MAF

I don't want to use an SD tune on my LY6 turbo build (if I don't have to). I like the driving characteristics of the MAF. At what hp/boost are people running into issues with the stock metering?

My goal is 800whp with meth through a 4l80e and S475

Jan 15, 2015 | 08:27 AM

JoeNova

Restricted User

Joined: Mar 2014

Posts: 7,192

Likes: 109

From: Ohio

I'm not going to say its impossible, but at that level its becomes a little impractical.

Jan 15, 2015 | 09:24 AM

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

...ok. Why?

Jan 15, 2015 | 09:30 AM

NicD

7 Second Club

iTrader: (7)

Joined: Nov 2001

Posts: 3,170

Likes: 690

From: Chandler, AZ

What ECM are you using?

Jan 15, 2015 | 10:58 AM

alocker

10 Second Club

iTrader: (10)

Joined: May 2006

Posts: 1,170

Likes: 8

From: NW Chicago Burbs

Quote:

Originally Posted by NicD

What ECM are you using?

It's probably an E38

Jan 15, 2015 | 11:18 AM

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

Yes, E38.

Jan 15, 2015 | 11:22 AM

NicD

7 Second Club

iTrader: (7)

Joined: Nov 2001

Posts: 3,170

Likes: 690

From: Chandler, AZ

Quote:

Originally Posted by kainedogg

Yes, E38.

Well if it's an E38 then depending on the OS it will go to the moon with the MAF and your goal is plenty doable.

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Jan 15, 2015 | 02:03 PM

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

Quote:

Originally Posted by NicD

Well if it's an E38 then depending on the OS it will go to the moon with the MAF and your goal is plenty doable.

I plan to use HPTuners

Quote:

Originally Posted by oscs

IIRC a large portion of the factory units start breaking up around 12psi? I don't remember which ones can handle a higher load.

The factory MAF, OSCS?

Jan 15, 2015 | 02:05 PM

#10

oscs

8 Second Club

iTrader: (19)

Joined: Jan 2013

Posts: 3,903

Likes: 6

From: Cypress, TX

Quote:

Originally Posted by kainedogg

I plan to use HPTuners The factory MAF, OSCS?

The PCM

Jan 15, 2015 | 02:15 PM

#11

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

I hope it can handle it. I want this car to be as streetable as possible on pump gas and meth. It is going in my '71 Chevelle and I refuse to lose to my buddy's '72 with a T-Trim. Gotta have goals right?

Jan 15, 2015 | 02:16 PM

#12

oscs

8 Second Club

iTrader: (19)

Joined: Jan 2013

Posts: 3,903

Likes: 6

From: Cypress, TX

Quote:

Originally Posted by kainedogg

Why are you so scared of SD tune? I can't tell the difference one way or the other when the right person gets a hold of it.

Jan 15, 2015 | 02:21 PM

#13

ZONES89RS

In-Zane Moderator

iTrader: (25)

Joined: Jan 2007

Posts: 11,941

Likes: 33

From: Conroe, Texas

I've heard that cold starts are barely a issue and everything else is the same otherwise.

Jan 15, 2015 | 02:38 PM

#14

NicD

7 Second Club

iTrader: (7)

Joined: Nov 2001

Posts: 3,170

Likes: 690

From: Chandler, AZ

Quote:

Originally Posted by kainedogg

I plan to use HPTuners

Then don't worry because the E38 will read well over 1000 rwhp with a MAF depending on the operating system used.

Jan 16, 2015 | 06:06 AM

#15

alocker

10 Second Club

iTrader: (10)

Joined: May 2006

Posts: 1,170

Likes: 8

From: NW Chicago Burbs

There are opinions on both sides here that makes this a little murky.

Quote:

Originally Posted by oscs

The PCM

Why is the PCM the limiting factor?

Quote:

Originally Posted by NicD

Then don't worry because the E38 will read well over 1000 rwhp with a MAF depending on the operating system used.

What OS is needed to make the MAF work?

Jan 16, 2015 | 06:40 AM

#16

oscs

8 Second Club

iTrader: (19)

Joined: Jan 2013

Posts: 3,903

Likes: 6

From: Cypress, TX

Quote:

Originally Posted by alocker

There are opinions on both sides here that makes this a little murky. Why is the PCM the limiting factor? What OS is needed to make the MAF work?

Not sure on the specifics. I'm not a tuner.

Jan 16, 2015 | 08:30 AM

#17

kainedogg

Thread Starter

TECH Fanatic

iTrader: (23)

Joined: Mar 2006

Posts: 1,313

Likes: 5

I have never driven in an sd car apart from the older 5.0 Mustangs so I don't know exactly what to expect. However if I can get what I need with the factory components then I am not opposed.

Jan 16, 2015 | 09:04 AM

#18

JoeNova

Restricted User

Joined: Mar 2014

Posts: 7,192

Likes: 109

From: Ohio

Quote:

Originally Posted by kainedogg

I have never driven in an sd car apart from the older 5.0 Mustangs so I don't know exactly what to expect. However if I can get what I need with the factory components then I am not opposed.

There are tons of factory cars that don't use a MAF. 99% chance you won't be able to tell the difference with an SD tune.

Jan 16, 2015 | 09:26 AM

#19

NicD

7 Second Club

iTrader: (7)

Joined: Nov 2001

Posts: 3,170

Likes: 690

From: Chandler, AZ

Quote:

Originally Posted by alocker

What OS is needed to make the MAF work?

I like the 2009 LS3 corvette OS for something like that since it already has the extended MAF table or maybe a 2008 Silverado OS with the enhancement applied to extend the MAF table. Either should work with a 4L80 TCM I believe if you are wanting to control the trans with the TCM, or run a manual OS with a MVB 4L80. A lot depends on your wiring harness, ECM/TCM part numbers, etc though so don't quote me on this.