How my tune and is this right??
#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
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
#5
Internet Mechanic
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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??
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??
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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
#7
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
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; 03-05-2008 at 08:54 AM.
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#13
UNDER PRESSURE MOD
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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.
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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.
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.