Dbeck002

hey guys, i know this is a little late in the game to be mentioning this but I suspect that my 91 LX has an aftermarket cam. When I bought it the guy said the car was all stock which I still think isnt true. I believe it has a cam because the way the exhaust sounds as it goes from 1000 to 3500 RPM. I hear the air packing in the cylinders and make that 'muscley' sound. how can i check if i have a cam besides dynoing it? i also think this car has gears even though the guy said it had stock gears. anyway, how can i check if it has a cam?

cammedlx

have you ever heard a fox body with a cam idle

90Mustangfan

Go to somone that has a cam or somone who doesnt and see it It sounds the same. I had to do the same thing because the owner before me did engine work and I thought my car has a cam, and I heard a stock 5.0 and my car Idle is alot tuffer and rougher sounding, also people ask I if have a cam.

Dbeck002

well ive heard a fox without a cam idle and mine just sounds like it has a lope.

90Mustangfan

mabye you have a cam then, also if your car barely passes smog then you could have a cam.just some possiblities.

mdvaldosta

maybe its a skip

Dbeck002

nah its not a misfire, i hear all 8 cylinders firing and the tach reads steady...

90LX50

Well then bonus, one less thing to have to do, and buy

MurPHy

To know for sure, you will have to degree the camshaft. You'll probably find out what brand and type it is too from that information, if it isn't a custom camshaft.

roundman

pull the driver's side valve cover and use a magnetic base 1" dial indicator to measure the valve lift on one intake and one exhaust valve and compare this to the stock cam specs.