stroker gas mileage - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

1JEWLDSSRS · 08-06-2022, 06:14 PM

Quote:

Originally Posted by morepowerjoe

I'm now concerned about my fueling. I'm expecting around 475 whp should I be considering a fuel pump and injectors?

Joe, I'm running a ZL1 pump with my setup and power level along with the stock injectors, and my Aeroforce gauges show about 65-70% on the injector duty at WOT...

1JEWLDSSRS · 08-06-2022, 06:16 PM

Quote:

Originally Posted by acammer

The most important measurement is SPG - smiles per gallon. Ain't seen a Prius touch my car for that yet!

^^^ This for sure!!! Mileage doesn't matter, it the FUN AND GRINS that never end!!!

morepowerjoe · 08-07-2022, 12:13 AM

Quote:

Originally Posted by 1JEWLDSSRS

Joe, I'm running a ZL1 pump with my setup and power level along with the stock injectors, and my Aeroforce gauges show about 65-70% on the injector duty at WOT...

Thank you sir for the info I appreciate it. That's what I figured I would eventually do is ZL1 fuel pump and injectors maybe after I get some new heads.

Vicster · 08-20-2022, 03:51 PM

Hello my friend,
I'm getting in on this kind of late. I have the livernois dual pump upgrade in my car right now and I get 22 miles to the gallon on the freeway doing 70. No e85 stations near me so I run 92 with boostane. But I'm having to put in larger fuel pumps due to my engine build, The fuel pumps lasted till about 950 horsepower which they're only rated for 800 that's pretty good. The engine I have in there right now should hit about 1100 horsepower. I am running ID850 fuel injectors and they should hit about 90% duty cycle. I am putting in the Holley dual 450lph pump set up with a return system. This pump is rated to 1700hp so it should be good for the 427ci I am currently building.
I will be selling the livernois pumps @ 50% off soon, if you are looking to upgrade the stock pumps.

But not in it for fuel milage, in it for the grin factor!

morepowerjoe · 08-20-2022, 11:58 PM

Quote:

Originally Posted by Vicster

Hello my friend,
I'm getting in on this kind of late. I have the livernois dual pump upgrade in my car right now and I get 22 miles to the gallon on the freeway doing 70. No e85 stations near me so I run 92 with boostane. But I'm having to put in larger fuel pumps due to my engine build, The fuel pumps lasted till about 950 horsepower which they're only rated for 800 that's pretty good. The engine I have in there right now should hit about 1100 horsepower. I am running ID850 fuel injectors and they should hit about 90% duty cycle. I am putting in the Holley dual 450lph pump set up with a return system. This pump is rated to 1700hp so it should be good for the 427ci I am currently building.
I will be selling the livernois pumps @ 50% off soon, if you are looking to upgrade the stock pumps.

But not in it for fuel milage, in it for the grin factor!

That's an insane amount of power buddy. I can't even imagine that. Yeah I've been watching your progress, awesome build!

InFiD3ViL · 08-21-2022, 01:03 AM

IDK about highway, cuz I'm never on it. City I am at 11.7 mpg on 93.

I am only driving her about 20 miles a week lately, so it lasts a while regardless.

bsn · 08-21-2022, 06:46 AM

Even though a stroker increases cubic inches over stock you can still retain the same or better fuel economy by making things more efficient and optimizing the tune. In theory most performance modifications work by making the engine more efficient, the problem is more power=equals a lead foot for most drivers and fuel economy takes a hit. There is no reason you can't have it both ways.

BehindBlueI's · 08-21-2022, 09:40 AM

Quote:

Originally Posted by SSE 4 2SS

If I babied her, with the A/C off (I don’t actually have A/C), in South Texas, I could eek out about 3 mpg… on C-16 race fuel…

On a mile long full send, I burned through 5 gallons of fuel…

I admit, she was kinda peppy… and thirsty…

417 CI, Solid Billet Cam, 10.5 : 1 compression ratio… roughly 27-35 lbs of boost… 225 lb/hr injectors…

I was once issued a V12 equipped work vehicle that had no AC and got 0.8mpg. I suspect who would win a race would be heavily influenced by terrain selection as it wasn't all that quick but it was a tank. I mean, literally, it was a tank. Mine clearing M60A3, to be precise.

0stones0 · 08-21-2022, 11:14 AM

Quote:

Originally Posted by BehindBlueI's

I was once issued a V12 equipped work vehicle that had no AC and got 0.8mpg. I suspect who would win a race would be heavily influenced by terrain selection as it wasn't all that quick but it was a tank. I mean, literally, it was a tank. Mine clearing M60A3, to be precise.

Do they even bother with a fuel gauge?

Danial · 08-21-2022, 11:48 AM

Quote:

Originally Posted by BehindBlueI's

I was once issued a V12 equipped work vehicle that had no AC and got 0.8mpg. I suspect who would win a race would be heavily influenced by terrain selection as it wasn't all that quick but it was a tank. I mean, literally, it was a tank. Mine clearing M60A3, to be precise.

I was a squad leader in charge of an APC. I think we used the phrase, "gallons per mile". Grin...

BehindBlueI's · 08-21-2022, 02:37 PM

Quote:

Originally Posted by 0stones0

Do they even bother with a fuel gauge?

Nope.

BehindBlueI's · 08-22-2022, 02:38 PM

This thread inspired me to check my average mpg. 21.3 was the reading. I do almost all highway driving with the car and am generally in the 80-88 mph range.

So just for funsies I dialed it back to 70 and reset the gauge. For 30 miles I did 70. Result was 26.3mpg. Almost no wind, no AC on, windows up, very light traffic. Essentially ideal conditions. I'm basically stock drive train wise, just an aftermarket intake. Indy 500 tires and a Peddars adjustable suspension that lowers the car about an inch so maybe a little less air resistance and probably not a ton of rolling resistance.

Not that I plan to eek out the best fuel economy I can and it'll be back to normal next time, but it was an interesting little experiment and pretty impressive what a car this heavy and with this much power on tap from the factory can manage economy wise.

1JEWLDSSRS · 08-22-2022, 02:53 PM

Quote:

Originally Posted by BehindBlueI's

This thread inspired me to check my average mpg. 21.3 was the reading. I do almost all highway driving with the car and am generally in the 80-88 mph range.

So just for funsies I dialed it back to 70 and reset the gauge. For 30 miles I did 70. Result was 26.3mpg. Almost no wind, no AC on, windows up, very light traffic. Essentially ideal conditions. I'm basically stock drive train wise, just an aftermarket intake. Indy 500 tires and a Peddars adjustable suspension that lowers the car about an inch so maybe a little less air resistance and probably not a ton of rolling resistance.

Not that I plan to eek out the best fuel economy I can and it'll be back to normal next time, but it was an interesting little experiment and pretty impressive what a car this heavy and with this much power on tap from the factory can manage economy wise.

Yes sir, that's pretty cool!!

08-20-2022, 03:51 PM	#46
Vicster 1000hp is NEVER Enough! Drives: 13' ZL1 Join Date: Jan 2013 Location: Seattle Posts: 665 View My Garage	Hello my friend, I'm getting in on this kind of late. I have the livernois dual pump upgrade in my car right now and I get 22 miles to the gallon on the freeway doing 70. No e85 stations near me so I run 92 with boostane. But I'm having to put in larger fuel pumps due to my engine build, The fuel pumps lasted till about 950 horsepower which they're only rated for 800 that's pretty good. The engine I have in there right now should hit about 1100 horsepower. I am running ID850 fuel injectors and they should hit about 90% duty cycle. I am putting in the Holley dual 450lph pump set up with a return system. This pump is rated to 1700hp so it should be good for the 427ci I am currently building. I will be selling the livernois pumps @ 50% off soon, if you are looking to upgrade the stock pumps. But not in it for fuel milage, in it for the grin factor! Attached Images __________________ 1,000hp IS NEVER ENOUGH!!!

08-21-2022, 01:03 AM	#48
InFiD3ViL Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016 Location: Spring Hill, FL Posts: 4,575	IDK about highway, cuz I'm never on it. City I am at 11.7 mpg on 93. I am only driving her about 20 miles a week lately, so it lasts a while regardless. __________________ 2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI

08-21-2022, 06:46 AM	#49
bsn Drives: 2013 ZL1 Join Date: Sep 2021 Location: Virginia Posts: 302	Even though a stroker increases cubic inches over stock you can still retain the same or better fuel economy by making things more efficient and optimizing the tune. In theory most performance modifications work by making the engine more efficient, the problem is more power=equals a lead foot for most drivers and fuel economy takes a hit. There is no reason you can't have it both ways.

08-22-2022, 02:38 PM	#54
BehindBlueI's Drives: 2011 Camaro SS Join Date: Dec 2016 Location: Midwest Posts: 314	This thread inspired me to check my average mpg. 21.3 was the reading. I do almost all highway driving with the car and am generally in the 80-88 mph range. So just for funsies I dialed it back to 70 and reset the gauge. For 30 miles I did 70. Result was 26.3mpg. Almost no wind, no AC on, windows up, very light traffic. Essentially ideal conditions. I'm basically stock drive train wise, just an aftermarket intake. Indy 500 tires and a Peddars adjustable suspension that lowers the car about an inch so maybe a little less air resistance and probably not a ton of rolling resistance. Not that I plan to eek out the best fuel economy I can and it'll be back to normal next time, but it was an interesting little experiment and pretty impressive what a car this heavy and with this much power on tap from the factory can manage economy wise.