stroker motors and mpg
06-29-2011, 02:00 PM
#1
stroker motors and mpg i may be doing an ls3 build in the future, and plan on doing h,c,i and full exhaust to her. If i did the exact same mods to a 418 ls3 stroker, how much more gas will i use...will it be like a 1-2 mpg difference on the highway?
06-29-2011, 02:15 PM
#2
Lol if your building a 418 with heads,cam,long tubes and an intake, is gas mileage a concern?
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
06-29-2011, 02:20 PM
#3
Lol if your building a 418 with heads,cam,long tubes and an intake, is gas mileage a concern?
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
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06-29-2011, 05:09 PM
#8
I average about 15mpg driving to and from work. Mix of highway, local roads and stinking bumper to bumper traffic. Cruising on trips, etc - I average about 21-22MPG. Mine is a very mild build with a very small cam for a 427.
I can get it down to single digits very easily...
I can get it down to single digits very easily...
06-29-2011, 05:31 PM
#9
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I average about 15mpg driving to and from work. Mix of highway, local roads and stinking bumper to bumper traffic. Cruising on trips, etc - I average about 21-22MPG. Mine is a very mild build with a very small cam for a 427.
I can get it down to single digits very easily...
I can get it down to single digits very easily...
06-29-2011, 05:37 PM
#10
I know I don't have a stroker and turbo's are a lot more efficient in using exhaust gas you NA guys just waste
I can get 17-18 in town out of boost and 24-25 on the highway with the old 3.08's. Now that would drop to 12-13 and 19-20 if I get into boost frequently. With the 3.55's I expect it to drop to 22-23 on the highway and 16-17 in town, but I have 3 cars so it's not a DD by any means!
I can get 17-18 in town out of boost and 24-25 on the highway with the old 3.08's. Now that would drop to 12-13 and 19-20 if I get into boost frequently. With the 3.55's I expect it to drop to 22-23 on the highway and 16-17 in town, but I have 3 cars so it's not a DD by any means!
06-29-2011, 08:55 PM
#14
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Lol if your building a 418 with heads,cam,long tubes and an intake, is gas mileage a concern?
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
If it is just keep your 346 and build it, my old ls1 setup with tfs 220 heads,Lt's,VRX5 cam and a FAST 90 only gave me 12mpg city with 456 hp and 400 tq. It is still a weekend car so not too concerned about mpg.
06-30-2011, 01:54 AM
#20
