Higher Milage Boosting
Thread Starter
Instructor
Joined: May 2019
Posts: 148
Likes: 35
From: Virginia
Higher Milage Boosting
Looking for opinions from real world users.... I have an 01 M6 with 149K on it, one owner before me, older gentleman bought it new. Its 100% stock except for a Ti exhaust. I wasn't interested in changing to headers, x pipe, hi flow cats, blah blah.... but I have been thinking of adding a supercharger after driving my friends that has an ECS supercharger.
Would the higher miles on a stock 5.7 be of great concern when thinking of adding a supercharger? I don't want radical, maybe 5PSI to get a bit more GRRRR out of the old girl..... Thanks guys!
Would the higher miles on a stock 5.7 be of great concern when thinking of adding a supercharger? I don't want radical, maybe 5PSI to get a bit more GRRRR out of the old girl..... Thanks guys!
Burning Brakes
Joined: May 2009
Posts: 1,180
Likes: 224
From: Austin Texas
If budget and reliability are your two main concerns on an older inexpensive car.... I would definitely consider doing:
-Long Tube headers / no cats
-4.10 gears
-Dyno tune
You will be amazed at the difference! Remember, even the cheapest and smallest C5 supercharger kits will get you over 500rwhp real quick! Now your next problem will be the weak factory clutch in the 149K LS1 C5 that will start to slip! That will be a VERY expensive repair bill not anticipated.
-Long Tube headers / no cats
-4.10 gears
-Dyno tune
You will be amazed at the difference! Remember, even the cheapest and smallest C5 supercharger kits will get you over 500rwhp real quick! Now your next problem will be the weak factory clutch in the 149K LS1 C5 that will start to slip! That will be a VERY expensive repair bill not anticipated.
Last edited by C6-LS2-MN6; Apr 1, 2022 at 02:25 AM.
Race Director
Joined: Dec 1999
Posts: 10,230
Likes: 885
From: Alexandria, Virginia, USA VA
if the engine has good compression and better still does a good leak down test I wouldn't hesitate
the blower will pick up the torq much more than the head cam and make for a nicer driving car
the blower will pick up the torq much more than the head cam and make for a nicer driving car
Running Guns & Moonshine
Joined: Aug 2001
Posts: 12,672
Likes: 7,304
From: CT
As Rkreigh said - if the engine is still happy, get the blower and don't look back.
My opinion remains that every C5 should have come off the factory line with 10psi of boost. They're just fun cars at that point.
My opinion remains that every C5 should have come off the factory line with 10psi of boost. They're just fun cars at that point.
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