MPG after LS6 install

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Oct 6, 2011 | 01:22 PM

Chaos07

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MPG after LS6 install

I noticed after my LS6 intake install my gas is being used more than before. Is this normal or should i replace something or get it tuned.

Oct 6, 2011 | 01:48 PM

LS1WS6dreamer

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I am sure it needs a tune. How many MPG's did it drop?

Oct 6, 2011 | 02:14 PM

Chaos07

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i dont know really, but when i turn the car off and then go abck to it later on the needle will be at a lower position than before.

Oct 6, 2011 | 02:38 PM

thegodfather899

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^^are you parked on a hill? mine moves a ton depending on the road grade

Oct 6, 2011 | 02:57 PM

redtan

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Quote:

i dont know really, but when i turn the car off and then go abck to it later on the needle will be at a lower position than before

So you think the ls6 intake is burning extra gas while the car is off?

If that's your only explanation to seeing an mpg decrease then you need to go back and figure some things out.

Oct 6, 2011 | 03:01 PM

jimmyblue

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Deleting EGR will add pumping losses at cruise. Did this attend
the swap?

Oct 6, 2011 | 03:01 PM

xX-Z28-Xx

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^lmao redtan

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Oct 6, 2011 | 05:51 PM

Chaos07

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i havnt had an EGR for a about a year now, but idk it just seems to use more fuel than before. Im going to replace the O2 sensors and see if anything changes.

Oct 6, 2011 | 05:51 PM

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Chaos07

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ill even replace the fuel filter

Oct 6, 2011 | 05:54 PM

#11

Chaos07

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Oh and also everytime i start teh car it has a funny smell to it, IDK the smells of too Rich or too Lean

Oct 6, 2011 | 07:56 PM

#12

xX-Z28-Xx

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Get a tune!!!

Oct 6, 2011 | 07:58 PM

#13

LS1121

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I Z06'd my LS1 and deleted the EGR and my mpg on the highway is 25. Yes that's gearhead code. lol lol.

Oct 7, 2011 | 11:38 AM

#14

jimmyblue

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Quote:

Originally Posted by omarrakeen

explain please?

At low MAP you do work pulling air into the intake. EGR
bypasses the throttle with inert (exhaust) gas and raises
MAP, decreasing the throttle pressure drop / pumping
loss.

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MPG after LS6 install

MPG after LS6 install

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