Got fuel?

duramaxnate

Professional Amateur
Feb 18, 2014
513
0
16
32
Norco, CA
www.mcfooracing.com
Needs a little more fuel, What do you think? :confused:

Customer brought his truck in my shop for a water pump job, Asked if I can see what tuning he has (Has efilive but wasn't told by who, no Autocal or nothing) I normally don't just plug in and read other people's work but he asked me to and it made him feel better. Good thing I did. The rest of these are PPE Tunes.

And here I thought Betty's tune was pretty hot but damn...:roflmao::spit:
 

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2004LB7

Super Moderator
Staff member
Dec 15, 2010
7,138
2,229
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Norcal
Damm, looks like a quadruple stacked tuner :roflmao:

Whats the timing look like?
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,759
5,933
113
Phoenix Az
holy crap!!! damn near the H&S 40/40 tune! :spit:

Novak, your typical all out race tune is generally 3250 for pulse width MAX (some guys run 3350 but they know the risks lol) and timing at 32* at 3250rpm, most customer trucks get a 2800-2900uS max race tune though as stock CP3s with some miles cant really support much more. this is WELL beyond that! that much fuel and timing is an easy way to kill an engine if the CP3 can keep up
 

wilrob

Back in the Motherland
Sep 14, 2016
366
0
16
Dallas, TX
holy crap!!! damn near the H&S 40/40 tune! :spit:

Novak, your typical all out race tune is generally 3250 for pulse width MAX (some guys run 3350 but they know the risks lol) and timing at 32* at 3250rpm, most customer trucks get a 2800-2900uS max race tune though as stock CP3s with some miles cant really support much more. this is WELL beyond that! that much fuel and timing is an easy way to kill an engine if the CP3 can keep up

Is the x axis the pulse width?
 

Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,759
5,933
113
Phoenix Az
Is the x axis the pulse width?

no, X-axis is Rail pressure measured in mPa, y-axis is the demanded MM3 based on the throttle based injection quantity. Pulse width is the numbers in the table. As you approach WOT, MM3 will be between 100-120mm3 depending on how the tuner has it set up and rail pressure will be between 160-180mPa depending on how the tuner has it set up or year of truck (lb7-lly are 160mPa stock but can be increased above that if desired, LBZ and up start at 180 and go up).
 

Dozerboy

Well-known member
Jun 23, 2009
4,918
498
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TX of course
With a stock cp3 that truck never saw the big end of that fueling, but that timing... hope he wasn't spinning that thing over the 3400 table

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Chevy1925

don't know sh!t about IFS
Staff member
Oct 21, 2009
21,759
5,933
113
Phoenix Az
With a stock cp3 that truck never saw the big end of that fueling, but that timing... hope he wasn't spinning that thing over the 3400 table

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oh it saw the duration (assuming the retarded tuner got all the limiters out), it just didnt see the actual amount of fuel from pressure falling off lol
 

Novak

SQUIRREL TRYN TO GET A NUT
Jun 15, 2015
990
0
16
Cloud 9, IDAHO
holy crap!!! damn near the H&S 40/40 tune! :spit:

Novak, your typical all out race tune is generally 3250 for pulse width MAX (some guys run 3350 but they know the risks lol) and timing at 32* at 3250rpm, most customer trucks get a 2800-2900uS max race tune though as stock CP3s with some miles cant really support much more. this is WELL beyond that! that much fuel and timing is an easy way to kill an engine if the CP3 can keep up



Thanks for the schooling! Maybe it's their lucky number lol. Sounds like someone didn't like their customer


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2004LB7

Super Moderator
Staff member
Dec 15, 2010
7,138
2,229
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Norcal
holy crap!!! damn near the H&S 40/40 tune! :spit:

Novak, your typical all out race tune is generally 3250 for pulse width MAX (some guys run 3350 but they know the risks lol) and timing at 32* at 3250rpm, most customer trucks get a 2800-2900uS max race tune though as stock CP3s with some miles cant really support much more. this is WELL beyond that! that much fuel and timing is an easy way to kill an engine if the CP3 can keep up


My homebrew tune is maxed out at 2800uS and 32* @ 4800 RPM / 25.5* at 3200 rpm. rips pretty good with just a haze at the top end but get sh!t milage. holds rail pressure good. thought about turning it up a little bit more but I have LMM stock pistons, so i don't.
 

WVRigrat05

Wound for sound
Jan 1, 2011
3,081
4
38
36
French Creek, West Virginia
My homebrew tune is maxed out at 2800uS and 32* @ 4800 RPM / 25.5* at 3200 rpm. rips pretty good with just a haze at the top end but get sh!t milage. holds rail pressure good. thought about turning it up a little bit more but I have LMM stock pistons, so i don't.

Mine was 2300 us tune and 28 max timing. They still crack
 

Dozerboy

Well-known member
Jun 23, 2009
4,918
498
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Cracked pistons are a crap shoot. My truck hasn't been on a tune less then 2800us 28*(IIRC)in the last 100k. I'm an aggressive driver too.


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zakkb787

<that’s not me...
Sep 29, 2014
2,340
52
48
Granite Falls NC
Go figure. I'm still debating on a built motor or a junk yard motor and trade, either way it's more money and time than I want to waste.

You were already looking to sell or trade t either way so I'd just swap in a motor and trade it for something you're more satisfied with