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How my tune and is this right??

Generation III Internal Engine 1997-2006 LS1 | LS6

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How my tune and is this right??

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Old

Mar 4, 2008 | 10:49 PM

#1

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How my tune and is this right??

I reciently got a mail order tune for my ls1 here are the mods
2000 LS1/ M6
TSP T2 Cam
1 3/4 long tube headers
2 1/2" custom x pipe
2 1/2" exit exhaust
Intake
Dyno results 271hp & 258tq

my question is I am only getting aroung 170miles to a 17gal tank or anywhere from 9-12mpg is there something wrong????? I attached my dyno and how is the air fuel ratio it it good or bad????

Thanks
Tony

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How my tune and is this right??-dscf0868.jpg

Old

Mar 5, 2008 | 12:36 AM

#2

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wow, it's wayyy to lean. It should be near that red-dashed line

Old

Mar 5, 2008 | 01:29 AM

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your good then your going lean later in the higher rpms

Old

Mar 5, 2008 | 07:24 AM

#4

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....??? so what should my afr be?

Old

Mar 5, 2008 | 08:00 AM

#5

BlackScreaminMachine

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Its ok to have a Lean tune in the lower rpm's and part throttle but when you got to WOT its gotta be in the 12.8 range for NA car and lower for FI applications.

I had a car that ran 14.8 to 1 from idle to 2.5k, as soon as WOT occured it instantly dropped to the desired range and it was safe.

Your running 14 to 1 on the WOT and its slowly going down.

Do you know if that dyno has an issue with their A/F meter??

Old

Mar 5, 2008 | 08:18 AM

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no this was a dyno day and one guy said his tune from another shop show the same thing so I m asuming that it was on point. also if mine is 14 -1 at idle and goes down at WOT is that good or bad, sorry if I sound confused but I just trying to understand the AFR

Old

Mar 5, 2008 | 08:38 AM

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Quote:

Originally Posted by fattony

I reciently got a mail order tune for my ls1 here are the mods
2000 LS1/ M6
TSP T2 Cam
1 3/4 long tube headers
2 1/2" custom x pipe
2 1/2" exit exhaust
Intake
Dyno results 271hp & 258tq

my question is I am only getting aroung 170miles to a 17gal tank or anywhere from 9-12mpg is there something wrong????? I attached my dyno and how is the air fuel ratio it it good or bad????

Thanks
Tony

Is it just me? I am seeing 371hp 356tq.. It is a bit lean, shouldnt the red dotted line be at 13:1? not 11.8:1 or whatever its at in the pic? It looks like you are starting out near 14:1, then at higher RPMs it looks like it lowers to 13:1 give or take.. at least it doesnt stay at 14 throughout the range

Last edited by ChrisH821; Mar 5, 2008 at 08:54 AM.

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Old

Mar 5, 2008 | 08:58 AM

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so 13:1 is optimal

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Old

Mar 5, 2008 | 09:11 AM

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yep...
as for your MPG, are you a "spirited" driver? or is that highway milage?

Old

Mar 5, 2008 | 11:45 AM

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you know what they say "redline a day, keeps the carbon away" but I am consertive driver and most of my driving is highway driving.

Thanks
Tony

Old

Mar 5, 2008 | 01:30 PM

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From: Hereford,Lubbock

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*EDIT* i didnt see that u had a mail order tune done

Last edited by GT Griller; Mar 5, 2008 at 01:45 PM.

Old

Mar 5, 2008 | 01:35 PM

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Where are you located ? You should get the car custom tuned , a mail order tune should be used to get you to the dyno and have it custom tuned .

Old

Mar 5, 2008 | 02:40 PM

#13

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It's not horrible, if you're not getting knock. From what I can see, it's like 13.8:1 at low rpms and begins to drop as the rpms rise. Although 170miles a tank seems low, it's not crazy. I typically see 230-250 depending on how I drive. If you are throttle happy, I can believe 170miles per tank.

Old

Mar 5, 2008 | 06:36 PM

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pcm for less did my mail order tune

I am located in northern VA and I am ordering Heads and and Intake manifold (on there way) so tune should be comming up shortly

considering this is my first V8 also it is in an RX7 so I get throttle happy frequently I need to control myself.

Old

Mar 5, 2008 | 06:44 PM

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Yea that wll do it...if you kept the throttle normal you should actually get pretty good milege being as your car weighs less than an Fbody.

Old

Mar 5, 2008 | 11:34 PM

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does any one here know who I can goto for a tune in the DC metro area ie VA, DC, MD also will I need to buy a tuner software or do places have software???

Old

Mar 7, 2008 | 01:25 PM

#17

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From: glenburnie,md

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call Jason @ F-Body Central they are around Baltimore 410-242-0404, this is what they do, so call `em

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