[SBNFRH86]

Can i get a count who uses the 91 perf. tune & 93 perf. tune w/ 3 degree advance timing.

Which one is truely better (more power)?

Any problems w/ pinging, fan, no throttle, etc.

I currently have the 91 perf. tune w/ wot restriction disabled, raised rev & speed limiter. I am impressed with it. Just seeing if can get even more out of the tuner.

I realized that everywhere i live the gas stations sell 93 octane.

Thanks

 

[woodb01]

Can i get a count who uses the 91 perf. tune & 93 perf. tune w/ 3 degree advance timing.

Which one is truely better (more power)?

Any problems w/ pinging, fan, no throttle, etc.

I currently have the 91 perf. tune w/ wot restriction disabled, raised rev & speed limiter. I am impressed with it. Just seeing if can get even more out of the tuner.

I realized that everywhere i live the gas stations sell 93 octane.

Thanks

Here is the deal, EVEN with the 2 - 3 degree timing advance I don't think that anyone ever needs to use premium gas.

Higher octane fuel prevents detonation and is not as "volatile." It is usually used in high compression applications, usually MORE than 10.5 - 1 ratios. Even most 10 - 10.5 -1 ratios can use regular pump gas rather than premium.

~~~~~~~~~~~~~~~~~

I have a cortex tuner and I have no fear or concerns running the 87 performance tune with a 2 degree advance.

In fact, until summertime comes, I'm TEMPTED (haven't done it yet) to run the 85 octane fuel in the truck but cut back the advance to 1 degree. The only time you should ever consider cutting the timing back, or even remotely considering premium is when the outside ambient air temperature is near or over 100 degrees. I lived in Arizona for a long time so there it might make some sense to run premium in the summer to prevent any detonation.

Also, as a sidenote, the 2nd Gen Frontiers (and probably the 1sts, I haven't checked) ALL have detonation retard built-in so that if the engine detects any detonation it will automatically retard the timing to protect the engine.

~~~~~~~~~~~~~~~~~~~

If you're looking for power then work on the exhaust first. And I don't necessarily mean an aftermarket setup. I have seen absolutely AMAZING results with my custom setup. I'm not even sure there is much of a need for headers. The primary cats have a 2 3/8 outlet but they are piped to a 2" pipe. What a waste!

SEE WHAT I DID HERE:

http://www.clubfrontier.org/forums/f11/stock-exhaust-piping-measurements-48416/

Click on the pictures to enlarge them. You can probably have something similar done at nearly any exhaust shop for much MUCH less than what I paid.

The results WITH a Cold Air Intake are VERY good. I'm thrilled and after several months of testing it out I'm now going to go to the next level.

I'm now going to go with 3" pipe and a 3" muffler from the Y back. That 3" pipe will then flow well because the cross - section will be at least 80% of the two custom pipes there now...

~~~~~~~~~~~~~~~~~~~

Here is a thread about making power and a LOT of the basics that most folks don't know.

http://www.clubfrontier.org/forums/f11/understanding-horsepower-torque-how-make-more-44747/

 

[Higgs Boson]

The only way to tell which is better for your truck is to do two things.

1) go to the track, change no other variables down to tire pressure and how much fuel is in the tank (weight), and run with 91 and then run with 93 and see which is faster. the problem is you will run on different days unless you drain your tank and that will inevitably create different times.

2) drive part throttle cruise on the highway with two different fuels and measure mileage for the exact same distance and conditions and see which is better.

the truck will pull timing if it starts to ping (more likely under heavier throttle loads) so you shouldn't blow up on 87. i run 93 bone stock w/2 deg advance. i can tell a difference from 87. from 91? never tried but I doubt I could tell.

the truck is tuned from the factory to be safe/run well on 87. if you bump the timing i def recommend you bump the octane.

 

[Newman]

Ive messed around with 2,3, and 4 degree advance running 93.

2 feels the best all around.

 

[cjkarling]

Here is the deal, EVEN with the 2 - 3 degree timing advance I don't think that anyone ever needs to use premium gas.

Higher octane fuel prevents detonation and is not as "volatile." It is usually used in high compression applications, usually MORE than 10.5 - 1 ratios. Even most 10 - 10.5 -1 ratios can use regular pump gas rather than premium.

~~~~~~~~~~~~~~~~~

I have a cortex tuner and I have no fear or concerns running the 87 performance tune with a 2 degree advance.

In fact, until summertime comes, I'm TEMPTED (haven't done it yet) to run the 85 octane fuel in the truck but cut back the advance to 1 degree. The only time you should ever consider cutting the timing back, or even remotely considering premium is when the outside ambient air temperature is near or over 100 degrees. I lived in Arizona for a long time so there it might make some sense to run premium in the summer to prevent any detonation.

Also, as a sidenote, the 2nd Gen Frontiers (and probably the 1sts, I haven't checked) ALL have detonation retard built-in so that if the engine detects any detonation it will automatically retard the timing to protect the engine.

Actually, your vehicle probably did ping, and the computer dialed the timing back faster then you could notice.

I hear some people saying the 2 degree advance is not that noticeable... well, I did the two, then I tried the three and HOLY CRAP can you say POWER!?!?!? I run the 93 tune with 93 octane and I went from 2-3 degrees. WOW That truck is like a rocket! As the signature says, 6.37 0-60. I pull on all of the big V8 trucks out there that are not Heavily modded out. I have about 13k miles running my current config. on the truck. No pinging, problems, or hiccups whatsoever. Cannot wait to hit the Dyno. Highly recommend the setup!

 

[Relic]

Yes, running Sunoco Ultra 94. Great low-end with +3. Whenever I do something stupid like run 87 tune or mileage God kills a kitten.

 

[nismo08frontier]

91 is the highest we got here in california

 

[cjkarling]

Yes, running Sunoco Ultra 94. Great low-end with +3. Whenever I do something stupid like run 87 tune or mileage God kills a kitten.

ROFLMAO:laugh:

I just run my 93 all the time. Small price to pay for all the goodness. I never tune for economy. When I am going for mileage, I just take it easy, try and keep the RPM's below 2500, below 2000 on the HWY I get 20.5 in town averaged over 2 tankfulls and 22.2 on the HWY averaged over 60 miles.

91 is the highest we got here in california

That is because California sucks donkey ***. No offense.

 

[VoodooSaint]

Don't hate me for taking this slightly off topic, but after running 91 Perf I switched to 91 tow, has a much better feel to me ( more torquey) but I also found my MPG went up noticeably as well, well worth the extra dough for the octane

not gonna be faster on the track but for daily driving it's the poop

 

[cjkarling]

Don't hate me for taking this slightly off topic, but after running 91 Perf I switched to 91 tow, has a much better feel to me ( more torquey) but I also found my MPG went up noticeably as well, well worth the extra dough for the octane

not gonna be faster on the track but for daily driving it's the poop

Hmm, Interesting... will it let you do a 3 degree timing advance with the Tow Tune?

 

[nismo08frontier]

ROFLMAO:laugh:

I just run my 93 all the time. Small price to pay for all the goodness. I never tune for economy. When I am going for mileage, I just take it easy, try and keep the RPM's below 2500, below 2000 on the HWY I get 20.5 in town averaged over 2 tankfulls and 22.2 on the HWY averaged over 60 miles.



That is because California sucks donkey ***. No offense.

with vehicles and emissions yes sir

 

[cjkarling]

with vehicles and emissions yes sir

Don't forget the taxes, bankrupt economy, immigration, Only the criminals can have guns... well, any one they want anyhow, earthquakes, Incompetent government and law enforcement, What else... there is more. :thatswck:

Heck, the only thing yall got going for you is some good real estate, Beach front property, good off roading, Prerunner Greg, and some good looking women!

 

[Relic]

and some good looking women!

pics or ban.

 

[cjkarling]

pics or ban.

HAHA, I do not have any, I do not live in California, was just making an observation.

 

[woodb01]

What a DIFFERENCE!!

I work out of town Mon - Thurs every week. Last week I had off for a change and ended up driving my wife's Expedition all week.

This morning on the way into the airport early in the AM there was a light rain. Wow, what a difference. Getting onto one of the cloverleafs I got sideways WITHOUT TRYING TO in that turn. Scary. Then, when I straightened up on the highway to go I gave it a little gas to pick up speed and at literlly 30+ MPH, and headed STRAIGHT, both back wheels broke loose. Got a little sideways again.

Today for the first time I was actually a little scared to drive my own stinking truck!...

===================

I TRULY was not trying to drive aggressively. I attribute it to a few things:

1) The roads were wet.
2) I had just driven the Expedition (bigger, heavier, etc.) all week before.
3) I **think** when I straightened up, the gas bump caused the truck to drop a gear at the same time, maybe that was the cause.

Anyway, I love my truck and it runs like a scalded cat!

I have a customized Cold Air Intake system, I have a customized and specially designed exhaust, and I am running a Cortex with the performance tune AND a 2 degree advance.