Which Tuner For Me?

[GeeJay]

I don’t know much about tuners other than I will need to retune the for planned mods.so please bear with the uneducated queries. Time is short at the moment so I can’t wait until I have researched the ‘net and forums to educate myself.

 

I have:

 

2007 GMC Sierra Classic 2500HD SLT CrewCab Std Box, 8.1L V8 w/Allison 6 speed trans.

 

The truck is the tow vehicle for our 36 ft 5th Wheel Travel Trailer GVW 15,500# and daily driver.

 

Existing Mods: Airlift Air Springs 5000# capacity

 

Planned Mods ( in order of Installation):

 

1. Replace OE 245/75R16E tires with 265/75R16E (3500HD OE)

2.. Replace OE Air Intake with Volant Powercore CAI,

3. Replace Cat & 02 Sensor with straight pipe ( no emission regulations in Alberta)

& replace OE Exhaust with Cat Back type performance exhaust (make TBD)

4. Replace OE Exhaust manifold with headers (make TBD)

 

 

Q1. What tuner will reprogram for:

 

a. Tire upsize,

b . CAI

c. No Cat & O2 sensor + performance exhaust,

d. Headers

e. Increased HP & torque & MPG for towing 15.5K GVW 5W Travel Trailer w/ 87 Octane.

f. Increased MPG solo w/ 87 Octane

 

Q2. Will 1.e & 1.f be single program or separate and changeable programs for each?

 

Q3. Can the reprogramming be carried out in stages to suit the addition of modifications?

 

Q4. How, exactly, is the reprogramming done?

 

Q5. What is a “custom tune” as opposed to packaged tuners like Superchips et al and how does it work for future changes?

 

Thanks

 

GJ

[Mike@Diablosport]

I don't know much about tuners other than I will need to retune the for planned mods.so please bear with the uneducated queries. Time is short at the moment so I can't wait until I have researched the 'net and forums to educate myself.

 

I have:

 

2007 GMC Sierra Classic 2500HD SLT CrewCab Std Box, 8.1L V8 w/Allison 6 speed trans.

 

The truck is the tow vehicle for our 36 ft 5th Wheel Travel Trailer GVW 15,500# and daily driver.

 

Existing Mods: Airlift Air Springs 5000# capacity

 

Planned Mods ( in order of Installation):

 

1. Replace OE 245/75R16E tires with 265/75R16E (3500HD OE)

2.. Replace OE Air Intake with Volant Powercore CAI,

3. Replace Cat & 02 Sensor with straight pipe ( no emission regulations in Alberta)

& replace OE Exhaust with Cat Back type performance exhaust (make TBD)

4. Replace OE Exhaust manifold with headers (make TBD)

 

 

Q1. What tuner will reprogram for:

 

a. Tire upsize,

b . CAI

c. No Cat & O2 sensor + performance exhaust,

d. Headers

e. Increased HP & torque & MPG for towing 15.5K GVW 5W Travel Trailer w/ 87 Octane.

f. Increased MPG solo w/ 87 Octane

 

Q2. Will 1.e & 1.f be single program or separate and changeable programs for each?

 

Q3. Can the reprogramming be carried out in stages to suit the addition of modifications?

 

Q4. How, exactly, is the reprogramming done?

 

Q5. What is a "custom tune" as opposed to packaged tuners like Superchips et al and how does it work for future changes?

 

Thanks

 

GJ

http://diablosport.com/index.php?module=ht...play&pid=64

 

Let me know if you have any other questions.

 

Thanks

Mike

[Draenor]

Leave the Cat and O2 sensor in place. There not just there for emmissions. As for a tune, you in Alberta, head down to Westers and get them to do a custom tune for you.

[GeeJay]

Leave the Cat and O2 sensor in place. There not just there for emmissions. As for a tune, you in Alberta, head down to Westers and get them to do a custom tune for you.

 

 

Funny you would suggest that Draenor. A Wester dealer recommended removing the cat & O2 sensor and says Wester can tune for that and get better performance and mpg imrovements than with them in place.

 

As former competitor in National and International rallies for many years, I know that removing the cat alone improved performance on stock engines and if the Wester tune can compensate for no O2 sensor for fuel management then I have no reason to doubt the dealer. Can you explain why I should?

 

Thanks

 

GeeJay

[VMax2007]

As former competitor in National and International rallies for many years, I know that removing the cat alone improved performance on stock engines and if the Wester tune can compensate for no O2 sensor for fuel management then I have no reason to doubt the dealer. Can you explain why I should?

Thanks

 

GeeJay

 

I can....

 

Because they serve a purpose.

 

I am no "treehugger", but I don't believe in defeating a system that keeps our envronment clean for the sake of a few extra HP that you will never see/need anyway.

[omegafiler]

As former competitor in National and International rallies for many years, I know that removing the cat alone improved performance on stock engines and if the Wester tune can compensate for no O2 sensor for fuel management then I have no reason to doubt the dealer. Can you explain why I should?

Thanks

 

GeeJay

 

I can....

 

Because they serve a purpose.

 

I am no "treehugger", but I don't believe in defeating a system that keeps our envronment clean for the sake of a few extra HP that you will never see/need anyway.

 

 

Wow, I never thought I'd post in any thread with a topic regarding "tunes" and actually agree with Jeff. But I actually do agree 100%.

 

Unless you have something against trees and clean air, please leave the cats! Unlike cars in the 70's, modern day cats flow pretty darn well and any gains on a mostly stock vehicle would be minimal at best.

[zer0stew]

I've started tuning with HP Tuners with my son, on his 98 TA 5.7, learned alot from that.

But on my 04 Chevy 4.8, I bought a JET PERFORMANCE, Dynamic Spectrum Tuner. It has been fun...

I had it dyno ,(before and after mods.. cold air, 3" cat back, & more), and have more power than the 5.3 ,

and get better gas mileage!! I would keep all sensors on, too!! They do not hurt HP if tuned right.

This software, can change anything on the ECM, goes on your computer, so you can do it in stages

Be sure and save each time you change something. I started ...stock, stg 1, stg 2, stg 3, etc.