stroker motors and mpg
Thread Starter
Joined: Mar 2011
Posts: 3,699
Likes: 168
From: Wilmington, DE
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?
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.
Thread Starter
Joined: Mar 2011
Posts: 3,699
Likes: 168
From: Wilmington, DE
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.
Thread Starter
Joined: Mar 2011
Posts: 3,699
Likes: 168
From: Wilmington, DE
o wait that wasd city....so you shoulda been seeing about that....nah i mean unless im wrong here, i think a 376 with big cam, heads, and intake should still see like 17-21 highway i would think
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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...
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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...
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!
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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iTrader: (14)
Joined: Nov 2004
Posts: 1,653
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From: Michigan (Macomb or Lansing)
my 404 /w torquer 3/ls6 intake/241 heads got 14/24 highway m6, 3.42s. Not too shabby.
I got a sick new topend, i dont think it changed all that much to be honest.
I got a sick new topend, i dont think it changed all that much to be honest.