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Supercharger to Engine Reliability Poll
Thread Starter
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Supercharger to Engine Reliability Poll
So I know we have all read plenty of "Miles on your motor and supercharger" or similar type of posts. My question and poll is simply, where does your motor stand after you got supercharged. I am very curious as to the results.
Instructor
Joined: Apr 2006
Posts: 137
Likes: 0
I chose to supercharge my stock bottom end car at 98k miles. after 6k it is still running strong @13lbs. of boost! I just got it dynotuned with the new exhaust, pushing 552 @ the wheels and I am confident it will last. I did about a 250 mile trip and got on it every chance I had and came up with a 22mpg average, so I feel it is a good combo. I did everything I could to stay safe though; I put meth on it, a liquid balancer, 8 rib setup, lockplate on stock cam, wideband failsafe and its just a street car. And I can say that I never fear to stand on it hard then drive it home, which is what I was going for in the beginning.
Thread Starter
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
I chose to supercharge my stock bottom end car at 98k miles. after 6k it is still running strong @13lbs. of boost! I just got it dynotuned with the new exhaust, pushing 552 @ the wheels and I am confident it will last. I did about a 250 mile trip and got on it every chance I had and came up with a 22mpg average, so I feel it is a good combo. I did everything I could to stay safe though; I put meth on it, a liquid balancer, 8 rib setup, lockplate on stock cam, wideband failsafe and its just a street car. And I can say that I never fear to stand on it hard then drive it home, which is what I was going for in the beginning.
Lockplate on the stock cam? Is this similar to pinning or keying the cam?
What is a wideband failsafe?
Team Owner
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
Liquid balancer has liquid in it to they say to bal it more when in high RPM. With a S/C in the car just put a good locktight on the cam bolt. w/b failsafe is wired into the wideband and if it falls below a set setting it will cut the motor. Also make sure you pin the crank also..Robert
Former Vendor
Joined: Oct 2007
Posts: 2,032
Likes: 6
From: longview tx
True! the Tune has a TON to do with it. You can run 525-575 RWHP for a VERY VERY VERY long time on your stock motor. What it comes down to really is boost level and tune. If we do a build and we put it t 7-9 PSI ill tell my customer to drive it ANYWHERE and dont worry about it, when you start getting over 10 PSI your really pushing a stock motor. Not saying it wont last , but thats alot of boost on the motor that was not made to handle that much.
Instructor
Joined: Apr 2006
Posts: 137
Likes: 0
A lockplate is an idea I got from when I used to build the old SBC engines. Comp cams sells them for the LS series, you use it to hold the cam bolts in place to prevent a loose cam sprocket.
A wideband failsafe is a gauge from AEM that displays Boost/A-F ratio and data logs these as well as engine speed, this will give you a good idea if your tune is continuing to preform how it should.
Also I would like to add that I relocated my intake air temp sensor to the manifold and had my tuner make a meth fail setting in my tune based on IAT, this is a good idea if you run meth.
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Thread Starter
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Liquid balancer has liquid in it to they say to bal it more when in high RPM. With a S/C in the car just put a good locktight on the cam bolt. w/b failsafe is wired into the wideband and if it falls below a set setting it will cut the motor. Also make sure you pin the crank also..Robert
I used a liquid balancer to prevent separation between the two parts of a stock balancer with the rubber in the middle. The Innovators West from ECS worked for me.
A lockplate is an idea I got from when I used to build the old SBC engines. Comp cams sells them for the LS series, you use it to hold the cam bolts in place to prevent a loose cam sprocket.
A wideband failsafe is a gauge from AEM that displays Boost/A-F ratio and data logs these as well as engine speed, this will give you a good idea if your tune is continuing to preform how it should.
Also I would like to add that I relocated my intake air temp sensor to the manifold and had my tuner make a meth fail setting in my tune based on IAT, this is a good idea if you run meth.
A lockplate is an idea I got from when I used to build the old SBC engines. Comp cams sells them for the LS series, you use it to hold the cam bolts in place to prevent a loose cam sprocket.
A wideband failsafe is a gauge from AEM that displays Boost/A-F ratio and data logs these as well as engine speed, this will give you a good idea if your tune is continuing to preform how it should.
Also I would like to add that I relocated my intake air temp sensor to the manifold and had my tuner make a meth fail setting in my tune based on IAT, this is a good idea if you run meth.
Cool thanks....Iam learning!
Thread Starter
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Racer
Joined: Oct 2011
Posts: 371
Likes: 0
From: Tucker Georgia
Nope. Completely stock engine. Just looks like bad luck. Block cracked, water got in the cylinder, broke the piston. 70,000 Mi on the engine. It was a zero drama failure. It just felt like it was missing a little bit at low rpm. I drove it from Mississippi to New Orleans at 70mph and it felt pretty normal. I was doing some ahem higher speed stuff in MS that day, though.
Last edited by Lloyd Christmas; Aug 10, 2012 at 04:34 PM.
Thread Starter
Original Founding Member!
Joined: Jul 1999
Posts: 9,037
Likes: 88
From: Granby, MA
Cruise-In 1, 3, 9. 10 & 11 Veteran
Nope. Completely stock engine. Just looks like bad luck. Block cracked, water got in the cylinder, broke the piston. 70,000 Mi on the engine. It was a zero drama failure. It just felt like it was missing a little bit at low rpm. I drove it from Mississippi to New Orleans at 70mph and it felt pretty normal. I was doing some ahem higher speed stuff in MS that day, though.
Race Director
Joined: Apr 2007
Posts: 18,049
Likes: 53
From: long Island NY
True! the Tune has a TON to do with it. You can run 525-575 RWHP for a VERY VERY VERY long time on your stock motor. What it comes down to really is boost level and tune. If we do a build and we put it t 7-9 PSI ill tell my customer to drive it ANYWHERE and dont worry about it, when you start getting over 10 PSI your really pushing a stock motor. Not saying it wont last , but thats alot of boost on the motor that was not made to handle that much.
Melting Slicks
Joined: Sep 2006
Posts: 2,728
Likes: 142
From: Iowa
I'm running 572rwhp at 10lbs. Do you guys think I should ever be concerned?
Racer
Joined: Oct 2011
Posts: 371
Likes: 0
From: Tucker Georgia
Nope. This was about 2500 miles after we put the supercharger on and tuned it. I don't think it had anything to do with the tune. The other cylinders and pistons looked fine, no signs of detonation.
Race Director
Joined: Apr 2007
Posts: 18,049
Likes: 53
From: long Island NY