Are there any advantages/disadvantages with replacing the timing chain with the gear driven timing set? I know of the excessive gear whine (oh yea) but other than that? Thanks. ((Planning a rebuild soon))
A timing chain after a long azz time starts to loosen up "because its worn out" and so when that happens your timing starts getting off. A chain however wont loosen "unless the bolts come loose or whatever" so you timing will stay accurate for a long long time and you dont have to worry about breaking it either. BUT! a lof of places that sell a chain drive unit say "DONT NOT USE WITH EFI ENGINES" the whining will cause your "knock sensor" to go crazy and it will think the engine is denating all the time, so your engine will run like crap. I have a Ford Racing timing chain. It was 80 bucks off www.summitracing.com part# FMS-M6268B302
A timing chain after a long azz time starts to loosen up "because its worn out" and so when that happens your timing starts getting off. A chain however wont loosen "unless the bolts come loose or whatever"
I think you meant to say..."Gears however wont loosen"....anyway..
I use the Pete Jackson noisey gears, besides sounding cool,they have a tensil strength of 190,000 psi.....which pretty much means you can break them...ever. There rather easy to install and if you plan on running big numbers(like in my sig),I , along with most reputable engine builders would recommend them. The reason you dont see them coming with engines such as CHP and DSS long blocks is beacuase there most costly then the timing chain and require a tad bit of machine on the timing cover. I have an efi motor, but have never experienced problems, maybe due to custom chip. good luck
A timing chain after a long azz time starts to loosen up "because its worn out" and so when that happens your timing starts getting off. A chain however wont loosen "unless the bolts come loose or whatever" so you timing will stay accurate for a long long time and you dont have to worry about breaking it either. BUT! a lof of places that sell a chain drive unit say "DONT NOT USE WITH EFI ENGINES" the whining will cause your "knock sensor" to go crazy and it will think the engine is denating all the time, so your engine will run like crap. I have a Ford Racing timing chain. It was 80 bucks off www.summitracing.com part# FMS-M6268B302
good point cardudeusa.. I also didn't believe the 5.0 had a knock sensor.. Where is it? I think the only issue was the machining of the timing cover....
I had a gear drive in my old 89 notch, but I took it out. It sounded a little like a quiet blower. Another disadvantage I've heard is that they can transmit vibrations. I still have it if somone wants to try it. Not sure of the brand, but it said noisey on it and it didn't look like the cheap MAC one. I'd sell it for $50 if I can find it.
I had a post about this a while ago, and most of the responses I got was to stay with a timing chain instead of getting the gears. I don't remember all of it, but many people were saying that it will make it harder to diagnose anything in the engine bay since they are so loud. But in sirsureshot's case, he also has a blower which would be the same thing. Others said that it doesn't sound exactly like a blower like you are expecting, and it sounds like crap. I cannot confirm that though, because I never heard them. I guess it depends on what you want them for, the loud whine, or the more precise timing? I would say go for them, you just need to modify the timing cover a bit. I just wanted to give you a heads up on what others said though.