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Old 05-19-2020, 08:06 AM   #1
jimmyducati
 
Drives: 01 SS Camaro
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Stage 4 BTR cam for "daily driven" M6?

Im about to pull the trigger on a '13 ZL1 with a BTR Stage 4 cam and supporting mods (appropriate valve train, CAI, Kooks headers, 1000cc injectors, heat exchanger upgrade etc). Car will be a daily driver with a 50/50 mix of highway and city.

My concerns are the drivability and dare I say economy... I know we don't buy these cars to save money at the pump, but I don't think I could live with 10-12 mpg either.

Also, I see Gen 5 ZL1's go for anywhere from high 20's to high 40's. I know that being a kinda special version of the Camaro, KBB is likely way off on its valuation. What should someone pay for a low mileage example of a ZL1? I don't really consider mods to be value adders, so Im not taking that into consideration.
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Old 05-19-2020, 12:51 PM   #2
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That screen name is familiar...
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Old 05-19-2020, 01:19 PM   #3
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I have a TSP Stage 4 F35 cam in an M6 SS FBO. You will be in the 10-12 mpg range and that's if you're keeping your foot off the pedal.
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Old 05-19-2020, 06:58 PM   #4
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Even stock these cars don't get good gas mileage, so with mods (especially a cam) it can get worse depending on the tune. If you're even slightly worried about driveability and mpg and you've never driven a cammed car; you may not like it. You really need to test drive it. I have a baby cam in mine and it still puts down great power and drives great.
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Old 05-19-2020, 09:43 PM   #5
jimmyducati
 
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Originally Posted by larry_g View Post
That screen name is familiar...
Louisville sport bike perhaps? I’m not there a lot, but that could be it.
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Old 05-19-2020, 09:49 PM   #6
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Originally Posted by DrkPhx View Post
Even stock these cars don't get good gas mileage, so with mods (especially a cam) it can get worse depending on the tune. If you're even slightly worried about driveability and mpg and you've never driven a cammed car; you may not like it. You really need to test drive it. I have a baby cam in mine and it still puts down great power and drives great.
Im driving to see it in the morning, wouldn’t buy something like this without a test drive! I knew even mentioning mpg’s would draw fire, I get that these cars get terrible mileage, but there shouldn’t be anything wrong with trying to make power efficiently. since I have no experience with an LSA, I would be an idiot to not inquire about what I should expect, especially a modified car!
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Old 05-19-2020, 09:58 PM   #7
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^^^ True. I get better mpg now compared to stock when hwy cruising.
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Old 05-20-2020, 03:52 AM   #8
Vicster
 
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Stage 3

Quote:
Originally Posted by DrkPhx View Post
^^^ True. I get better mpg now compared to stock when hwy cruising.
I run something close to a stage 3 and over drive supercharger 41%. Lots of mods... drives nice as daily driver, 22mpg on highway, but give it some throttle and the monster comes to life!

More on my journal...
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Old 05-20-2020, 08:54 AM   #9
RobZL1
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I agree. I get 16.5 mpg on mine driving back and forth to work daily on country backroads- mostly 35-55 mph, with a bunch of stoplights and stop signs.
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Old 05-20-2020, 10:50 AM   #10
jimmyducati
 
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16.5 is more than I expected so that makes me happy! I’m not familiar with the guys who tuned it, so I’m going to have a new tune done at raceproven in Kentucky. I’ll try the stage 4 out for a while and if it’s not comfortable on the street I may go with a smaller cam.

Thanks for the replies guys!!
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Old 05-20-2020, 12:56 PM   #11
Little Walter
 
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I get 22 mpg cruising on the interstate at 78 mph with a .646 lift cam, heads ported, cold air with 2.55 upper pulley and 9.55 lower, ARH 2 inch headers cat delete. Auto Trans. Much better than when it was stock.
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Old 05-20-2020, 02:12 PM   #12
jimmyducati
 
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I get 22 mpg cruising on the interstate at 78 mph with a .646 lift cam, heads ported, cold air with 2.55 upper pulley and 9.55 lower, ARH 2 inch headers cat delete. Auto Trans. Much better than when it was stock.
Thanks!

If driven with a light foot, any car with a really good tune should become more efficient, even with a ton of mods. They usually don't because they are so much more fun to drive fast!
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Old 05-20-2020, 02:38 PM   #13
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Originally Posted by jimmyducati View Post
Thanks!

If driven with a light foot, any car with a really good tune should become more efficient, even with a ton of mods. They usually don't because they are so much more fun to drive fast!
I barely get double digits mostly because my commute is mostly city streets. Plus I like to have fun in this car.
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