daily commuter and mods (reliability, gas milage, etc)
09-22-2008, 09:19 PM
#1
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daily commuter and mods (reliability, gas milage, etc) The current plan is to pick up a 06 cts-v after the first of the year (im out of town for 2 to 4 months starting mid october). When i get back ill be commuting roughly 80 miles a day.
Im planning on a few things to get right away. One is another set of wheels for winter (minnesota) and the other is the Kars III kit assuming i find a dealer that doesnt have warrenty problems with it.
From what i understand mot folks get a bit under 20 mpgs with mostly highwayh driving, and thats fine... But what happens when you do a few mods (assuming you keep your foot out of it
). So what effect might hearders, full exhaust, CIA and a tune have on that?
what effect would a maggie have on that :o im probably not going to do this (not right away thats for sure)
Ideally id like to have somewhere in the 500 crank hp range but i cant really live with 13 MPGs for a daily driver... maybe some head work and a mild cam? how would a dealer look that that? :o
waht do you think?
Im planning on a few things to get right away. One is another set of wheels for winter (minnesota) and the other is the Kars III kit assuming i find a dealer that doesnt have warrenty problems with it.
From what i understand mot folks get a bit under 20 mpgs with mostly highwayh driving, and thats fine... But what happens when you do a few mods (assuming you keep your foot out of it
). So what effect might hearders, full exhaust, CIA and a tune have on that? what effect would a maggie have on that :o im probably not going to do this (not right away thats for sure)
Ideally id like to have somewhere in the 500 crank hp range but i cant really live with 13 MPGs for a daily driver... maybe some head work and a mild cam? how would a dealer look that that? :o
waht do you think?
09-22-2008, 09:56 PM
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When I first got the V bone stock: 16 mpg
After headers, etc: 15 mpg
After maggie: 13 mpg
But 8 months into ownership and I can't keep my foot from mashing the pedal. That and my little highway driving is the reason for my mpg. If you can take it easy, you can definitely see 20 mpg + on the highway even with a maggie.
As far as mods & dealers - it all depends. Some will be fine with them, some won't. Post where you're from and maybe someone can tell you about the local dealers.
After headers, etc: 15 mpg
After maggie: 13 mpg
But 8 months into ownership and I can't keep my foot from mashing the pedal. That and my little highway driving is the reason for my mpg. If you can take it easy, you can definitely see 20 mpg + on the highway even with a maggie.
As far as mods & dealers - it all depends. Some will be fine with them, some won't. Post where you're from and maybe someone can tell you about the local dealers.
09-22-2008, 10:28 PM
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09-23-2008, 12:50 AM
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Wait...after headers and stuff your gas mileage went down? Did you have it tuned? I'm going to attribute that to changing how you drive. I would think your mileage should've increased. Mine has.
09-23-2008, 08:38 AM
#9
Right Foot Training Welcome to Mod Hell! 
Your right foot has everything to do with it, especially after any mods.
Right now, three or four hard trips through the gears (1-4), and my mileage is toast for that tank of gas.
I believe that a larger, milder cammed engine is a better solution than a 5.7 that's cammed to death for a high peak power dyno reading and by far, the driveability is better.
In your LS2 car, I feel that the LPE GT11 would be a pretty good choice for a DD/commuter. I've driven several LS2 cars (GTOs and a CTS-V) and they ran well with good driveability.
With that said, I would consult Patrick G before making any cam choices.
Your right foot has everything to do with it, especially after any mods.
Right now, three or four hard trips through the gears (1-4), and my mileage is toast for that tank of gas.
I believe that a larger, milder cammed engine is a better solution than a 5.7 that's cammed to death for a high peak power dyno reading and by far, the driveability is better.
In your LS2 car, I feel that the LPE GT11 would be a pretty good choice for a DD/commuter. I've driven several LS2 cars (GTOs and a CTS-V) and they ran well with good driveability.
With that said, I would consult Patrick G before making any cam choices.
09-23-2008, 08:46 AM
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I also drive about 0 highway miles so figure that in.
I'm probably not a good example because I don't drive enough miles to care about mpg. Listen to the other guys that can get 20 -26 mpg by taking it easy.
09-23-2008, 09:46 AM
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havent got em yet, but the long tubes on my truck were the same way. cant wait for the kooks. expect 18 average, 24-28 on the freeway if you're taking it easy. I actually bought this car for the mileage.
09-23-2008, 11:29 AM
#14
Welcome to Mod Hell!
Your right foot has everything to do with it, especially after any mods.
Right now, three or four hard trips through the gears (1-4), and my mileage is toast for that tank of gas.
I believe that a larger, milder cammed engine is a better solution than a 5.7 that's cammed to death for a high peak power dyno reading and by far, the driveability is better.
In your LS2 car, I feel that the LPE GT11 would be a pretty good choice for a DD/commuter. I've driven several LS2 cars (GTOs and a CTS-V) and they ran well with good driveability.
With that said, I would consult Patrick G before making any cam choices.
Your right foot has everything to do with it, especially after any mods.
Right now, three or four hard trips through the gears (1-4), and my mileage is toast for that tank of gas.
I believe that a larger, milder cammed engine is a better solution than a 5.7 that's cammed to death for a high peak power dyno reading and by far, the driveability is better.
In your LS2 car, I feel that the LPE GT11 would be a pretty good choice for a DD/commuter. I've driven several LS2 cars (GTOs and a CTS-V) and they ran well with good driveability.
With that said, I would consult Patrick G before making any cam choices.
I have a 5.7, with a high lift but low(er) duration cam (224/228 .588, .610 w/ xe-r/xfi lobes spec'd by Pat G). I was beyond surprised at what this cam did for my MPG. With me leadfooting it around, I gained 2 mpg. If I really try (flat surface, highway, 60 mph in 6th, windows up, no AC), I can get 32 mpg now with this cam. Cruising at 75 in 6th, with occasional passing, I can get 28 mpg.
It all comes back to that right foot though. If you get into it, MPG goes to shi!t real quick.
-Chris
