dyno after tune
dyno after tune 
cam only setup. G5X4, FAST 90 intake, NW 90mm T/B, Kook LT, Mufflex 4" exhaust, strange 12 bolt, 17x11 ZR1s with 315 nittos.
I am running 921 springs that have like 7000 miles on them. just replaced the lifters and head gaskets.
Yes, if you're still running the 75mm MAF, you can pick up some additional ponies by going MAFless speed density. Your driveability will increase as well.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
Originally Posted by bad95killer
Impressive numbers thru 12bolt man , Congrats 
What gears & How much of timing she's running ??
peace
What gears & How much of timing she's running ??
peace
I have 4.33 gears.
Before with the G5X2, LS6 intake, and ported stock T/B I was putting down 373HP and 358TQ so that is a healthy jump with the X4 and ported 90 intake with T/B
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Originally Posted by BIG_MIKE2005
Don't gettin rid of the MAF cause tuning issues in different weather??
Good numbers through a 12-bolt. Congrats.
Good numbers through a 12-bolt. Congrats.
Originally Posted by Thimble
Who can explain why this hp curve drops off so sharply at 6500 rpm, while most every other X4 out there pulls strong to over 7k?
Easy letoff of the throttle while still charting?
Easy letoff of the throttle while still charting?
Originally Posted by BIG_MIKE2005
Don't gettin rid of the MAF cause tuning issues in different weather??
Good numbers through a 12-bolt. Congrats.
Good numbers through a 12-bolt. Congrats.
Originally Posted by Thimble
Who can explain why this hp curve drops off so sharply at 6500 rpm, while most every other X4 out there pulls strong to over 7k?
Easy letoff of the throttle while still charting?
Easy letoff of the throttle while still charting?
Christian
I wish i could go MAF less but from what i have seen and heard about autos and found to be true through experimentation is the computer takes a reading from the MAF for the auto trans and by eliminating it or even going with an aftermarket one it screws up the trans fast. I switched to a GMS type mAF and my trans felt like it was slipping changed back to the stock MAF and it ran great again even though my car is tuned with a speed density tune. The mAF is just there for idle and the trans. ANy thoughts into this??
Originally Posted by bandit1
I wish i could go MAF less but from what i have seen and heard about autos and found to be true through experimentation is the computer takes a reading from the MAF for the auto trans and by eliminating it or even going with an aftermarket one it screws up the trans fast. I switched to a GMS type mAF and my trans felt like it was slipping changed back to the stock MAF and it ran great again even though my car is tuned with a speed density tune. The mAF is just there for idle and the trans. ANy thoughts into this??
Originally Posted by MeentSS02
You can work around it...in SD, the line pressure goes up to max on an auto, making it shift really hard. They have a fix for that...
Not sure on the details as I don't own or tune autos, but if you look here:
http://www.hptuners.com/help/
Click on "What's new in Version 2.1?"
Scroll down a little bit to the list for 2.1.12, and you'll see "Added - Steady state trans pressure for GM Gen3 vehicles."
http://www.hptuners.com/help/
Click on "What's new in Version 2.1?"
Scroll down a little bit to the list for 2.1.12, and you'll see "Added - Steady state trans pressure for GM Gen3 vehicles."
Originally Posted by bandit1
Well please help me out an tell me how