'03 & '04 tuning question - Chevy SSR Forum
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  • 2 Post By Texasbaehr
  • 2 Post By Auggie Doggie
  • 2 Post By MicDonna
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post #1 of 22 (permalink) Old 02-11-2019, 03:02 PM Thread Starter
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My SSR:
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'03 & '04 tuning question

As we know, one of the benefits of an '03 or '04 is that they can run on regular fuel. But I'm curious about suggested fuel octane ratings when pro tuners do a performance tune on an '03 or '04.

My hand held superchips tuner says to run 91 octane or better when installing the performance tune. Is that the same recommendation when one of the big boy tuners does a performance tune on an '03 or '04?

Inquiring minds want to know.

Thanks.
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post #2 of 22 (permalink) Old 02-11-2019, 03:21 PM
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My SSR:
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Joe Delano tuned my 04 at the last International. He can tune it for any octane level. I had mine tuned for 93 octane which is readily available. I wanted to get the maximum punch I could from pump gas. The extra few $ for fill up is well worth it.
Made a world of difference and really woke up that LM4.
Tuning it to still run regular will still provide some benefit, the fuel to air ratios and timing are changed, throttle delay removed and transmission pressures increased to firm up shifts. It will be more responsive with minimal power gain.

Insanity: Doing the same thing over and over and expecting a different result.
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post #3 of 22 (permalink) Old 02-11-2019, 03:23 PM
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My SSR:
05 Slingshot Yellow,Built 1-24-05,VIN120035,INDY500 Track/Festival/Parade Truck #32 of 74
91 minimum. Buy the highest octane gas you can get and no ethanol for best running and best performance. Couple hundred dollars a year difference and worth every penny of it.
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post #4 of 22 (permalink) Old 02-11-2019, 05:41 PM
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My SSR:
'04 Ricochet Silver and then along came. SINISTER
I use 90 or 91 octane gas without alcohol or 93 octane in my R, Donna’s R, my Colorado ZR2, and my wife’s Ford Edge. I don’t have any data as to power performance since I don’t run the quarter mile drag strip. I can tell you that we both get far better miles per gallon. The more energy or octane in a gallon, the more you are going to get out of it.
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post #5 of 22 (permalink) Old 02-11-2019, 06:18 PM
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My SSR:
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Mark I had mine turned for 87 octane. It made a world of difference in the giddy up. I also gain a little over 2mpg on it. If I keep the loud paddle soft I get 18.2 in town and 19.8 on highway. That's hand calculated. Tranny pressures up as well as shift points. Man when you do stomp it,the downshift and go is a blast.


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post #6 of 22 (permalink) Old 02-11-2019, 10:26 PM
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My SSR:
05 Slingshot Yellow,Built 1-24-05,VIN120035,INDY500 Track/Festival/Parade Truck #32 of 74
Quote:
Originally Posted by Daverobertson View Post
Mark I had mine turned for 87 octane. It made a world of difference in the giddy up. I also gain a little over 2mpg on it. If I keep the loud paddle soft I get 18.2 in town and 19.8 on highway. That's hand calculated. Tranny pressures up as well as shift points. Man when you do stomp it,the downshift and go is a blast.
Bump the octane up and after a couple of tanks it will re-adjust itself and you will really feel the power difference and it is only about $3 to $5 more per tank. Less then a beer now-a-days. It will love you for it also.

I can only get 91 octane here so I buy and add a quart of racing fuel each tank full and that bumps it up to about 93 and mine really loves that.


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post #7 of 22 (permalink) Old 02-12-2019, 11:08 AM Thread Starter
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My SSR:
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Thanks for the info guys. I'm pleased with the performance of my Superchips 91 octane tune. According to the manufacturer, it's about a 20 hp bump and allows for tranny adjustments too. That, along with the 4:10 gear, makes for a fun ride. I was just wondering if a pro tuner could get a similar performance and run it on lower octane. I guess I'd prefer to save the few dollars at the pump and go ahead and buy that beer.
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post #8 of 22 (permalink) Old 02-12-2019, 01:23 PM
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Good plan Mark.


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post #9 of 22 (permalink) Old 02-12-2019, 02:59 PM
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My SSR:
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Priority low cost servicing before you spend money on chips & high priced tuning: Just had my mass air sensor & throttle body cleaned along with the Dicktator throttle body heater hose bypass done. Nice improvement & still running on 87 octane.

"SJA"
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post #10 of 22 (permalink) Old 02-12-2019, 09:24 PM Thread Starter
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My SSR:
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Quote:
Originally Posted by SJA View Post
Priority low cost servicing before you spend money on chips & high priced tuning: Just had my mass air sensor & throttle body cleaned along with the Dicktator throttle body heater hose bypass done. Nice improvement & still running on 87 octane.

"SJA"
Yup... You're right. Gotta do the maintenance to maintain the factory settings. But once you've got that done, it's fun to take the trucks to the next performance level.
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post #11 of 22 (permalink) Old 02-12-2019, 09:34 PM
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My SSR:
05 Slingshot Yellow,Built 1-24-05,VIN120035,INDY500 Track/Festival/Parade Truck #32 of 74
On the 6.0 Liter it is pretty easy to squeeze another 50 horsepower out of them and gobs of torque with just a little tuning and work and a few parts. The difference is like night and day.


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post #12 of 22 (permalink) Old 02-12-2019, 09:46 PM Thread Starter
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My SSR:
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Quote:
Originally Posted by Auggie Doggie View Post
On the 6.0 Liter it is pretty easy to squeeze another 50 horsepower out of them and gobs of torque with just a little tuning and work and a few parts. The difference is like night and day.
Thanks for sharing, Auggie. Glad your 6.0 is running well. But how does that relate to '03's and '04's with a 5.3 running on lower octane fuel?
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post #13 of 22 (permalink) Old 02-13-2019, 07:12 AM
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My SSR:
04 Silver/Race Stripes 4:10 gears tuned at 130mph lowered 2"
5.3 liter (03/04)was designed to run on 87 octane.

I had mine tuned by Jeremy about 12yrs ago, first SSR Jeremy ever tuned.

Picked up 32hp, 3 more mpg, dropped (factory) 1 second throttle delay, remove screen on intake, port/polish throttle body, lowered fan speed setting to prevent overheating, change transmission setting to prevent "slip" in shift.

I changed rear gears to 4:10.

I have had Jeremy do "re-tune" every few years to adjust for wear.

I am and have been very happy with results.

I assure you, I can get "BLUE" lights to follow me anytime I want!

Dicktator
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post #14 of 22 (permalink) Old 02-13-2019, 07:29 AM Thread Starter
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My SSR:
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Quote:
Originally Posted by Dicktator View Post
5.3 liter (03/04)was designed to run on 87 octane.

I had mine tuned by Jeremy about 12yrs ago, first SSR Jeremy ever tuned.

Picked up 32hp, 3 more mpg, dropped (factory) 1 second throttle delay, remove screen on intake, port/polish throttle body, lowered fan speed setting to prevent overheating, change transmission setting to prevent "slip" in shift.

I changed rear gears to 4:10.

I have had Jeremy do "re-tune" every few years to adjust for wear.

I am and have been very happy with results.

I assure you, I can get "BLUE" lights to follow me anytime I want!

Dicktator
Are you still running on 87 octane?
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post #15 of 22 (permalink) Old 02-13-2019, 07:36 AM
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My SSR:
04 Silver/Race Stripes 4:10 gears tuned at 130mph lowered 2"
Quote:
Originally Posted by wizzr View Post
Are you still running on 87 octane?
Of course, 87 octane for 136,000 miles.

6.0 liter can be tuned to run on 87 octane but was not factory design. 6.0 was designed for 91 octane.

Dicktator


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post #16 of 22 (permalink) Old 02-13-2019, 07:39 AM Thread Starter
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My SSR:
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Thanks Dictator. Your testimony was what I was hoping to here.
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post #17 of 22 (permalink) Old 02-13-2019, 02:05 PM
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My SSR:
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Quote:
Originally Posted by wizzr View Post
Thanks for sharing, Auggie. Glad your 6.0 is running well. But how does that relate to '03's and '04's with a 5.3 running on lower octane fuel?
My bad. Forgot what the thread was about. It was titled 03 & 04 tuning question. I assumed, and we know how that works, when someone was asking about tuning usually that is for maximum performance and power, so I jumped to conclusions rather then just staying out of it. Sorry.
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post #18 of 22 (permalink) Old 02-14-2019, 07:17 AM
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My SSR:
04 Silver/Race Stripes 4:10 gears tuned at 130mph lowered 2"
Quote:
Originally Posted by Auggie Doggie View Post
My bad. Forgot what the thread was about. It was titled 03 & 04 tuning question. I assumed, and we know how that works, when someone was asking about tuning usually that is for maximum performance and power, so I jumped to conclusions rather then just staying out of it. Sorry.
Auggie don't worry about that, your input is always welcome.

You helped clarify the question.

Dicktator
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post #19 of 22 (permalink) Old 03-12-2019, 04:35 AM
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91 minimum. Buy the highest octane gas you can get and no ethanol
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post #20 of 22 (permalink) Old 03-12-2019, 07:50 AM Thread Starter
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My SSR:
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Interesting this old thread comes up. I've bee doing some seat of the pants testing the past month. I've been using 89 octane fuel with my 91 octane tune. For casual, around town driving, I can tell absolutely no difference in performance and I hear no pinging.
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post #21 of 22 (permalink) Old 03-12-2019, 07:14 PM
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My SSR:
2004 UV B105918 Born on 2/23/04 Standard upgrades Jeremy tuned
Jeremy tuned on 87 octane nice change from factory settings on transmission shifts and fan temp. settings, runs nice and kool and gets up and goes fast enough for me to get a ticket anytime I want.
Like having that xtra beer money too between fill ups......
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post #22 of 22 (permalink) Old 03-14-2019, 12:09 PM
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My SSR:
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I have a '05 SSR with the 6.0 liter. You can't get more than 91 octane around here on the high plains of Wyoming. Regular is 85 and it does not run well at all on that!

Since I am using 91, what sort of tune-up would improve the performance?
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