WOW $1,500. I think we are in the wrong business

WOW $1,500. I think we are in the wrong business

Rebel.....is that block a raise cam block? Reason I'm asking is you use the belt tensioner.

I ran an old Australian Muscle Parts belt drive. I felt like I was the R&D guy for him. I finally quit emailing and just made it work. Would like to see his come back just for some competition. As for the idler it is on ALL the raised cam BB Mopar Jesel. If you are patient they can be located from time to time, I will warn you if you buy a used one and it needs a belt or seals may as well buy new. They are quite proud of their stuff

I decided to buy a new Mildon gear drive for this motor, it should be here by Friday, I hope
I've installed and race them as well as KB and Donovan gear drives, this current motor will have a little over 850 Lbs. over the nose and around 300 Lbs. seat pressure
Thanks to all of you for your help

Try 1300+

was talking to Mike from 'Strayln Muscle parts today, said he is almost ready to release the new version of his belt driove for BBM's. we had a good talk & the new unit is going to have big improvements over the original. He's hoping the production will start in the next few months & hopefully priced better than the Jesel. He tells me Todd will probably be one of his dealers. watch this space

He send me a pic of his new Ford unit, said his new Mopar one will look similar.

Have never ran a belt drive but will be on my next engine. With that said is there a benefit with the idler. I know many of you have lots of experience with this stuff so I figured I will get the straight scoop.

Going to be completely honest, what are the advantages of the belt drive? Will you really see the horsepower per dollar?

I building a rather serious street car engine. I've looked at them, just hard to justify the expense. Especially since no one can give me any proven reasons.

100’s if not 1000’s of 8 second passes with my Mopar big blocks running roller timing chains with zero issues. Some get caught up in tricks, some don’t. Spend YOUR money wisely.

Jesel belt drives, just like Jesel rocker arms are used on serious race engines. You can put them on a street car just for show, but they are designed for hardcore applications.

i like the looks of the tensioner pulley, if you have a block that has been align honed more than once the crank to cam distance can be a challenge getting a timing chain the right length

i like the looks of the tensioner pulley, if you have a block that has been align honed more than once the crank to cam distance can be a challenge getting a timing chain the right length

I belt drive is always a good idea, for those who want the best and plan to actually try an make their car run as hard a possible. If you are a guy who screws or has stuff screwed together plugs it into the car and just runs it then by all means just use a timing chain. If you want the best use the best. If not then don't. I love those ads where people say "the best of the best" used to build. Then see things like timing chains, shelf pistons and eagle cranks. If you want the ultimate in adjustability and less variations in cam timing with BIG springs then use a belt. If you want rock solid timing that will not bounce around, then run a belt drive distributor, if not then don't. It really is just that simple.

If someone could give me back to back test proving hp or reliably/ longevity that would be something completely different, just not pure opinion.

Nothing I've read here has been informative as to why. All I'm seeing is that if you want to show how big your "wallet" is, it's the part to buy. A $20 hooker in a $1000 dress is still the same beast. I see a few guys here that assume that if you don't own one you are just running cheap junk. I assure you we didn't build a n/a 864 hp pump gas engine on cheap parts. The parts were selected very carefully, but not on the premises that just because it cost more, that it must be the best part. That's the way the government and unions work, and we don't cotton to that mindset.

That's the way the government and unions work, and we don't cotton to that mindset.

If someone could give me back to back test proving hp or reliably/ longevity that would be something completely different, just not pure opinion.

Machinist in town here has a 7 second car that had a fixed idler gear drive and he tried a belt drive to see what the hype was and his car lost a little 60 ft time. Put the gear drive back in and the car ran like it used to. His thought was the belt was stretching on launch and changing the timing.

Rubber belt would still stretch either way. All the idler would do is keep the belt from flapping around.

Belt drive ended up last here, but scored high in the fact that it was easiest to service.

https://www.hotrod.com/articles/ccrp-0510-camshaft-drive-comparison/

Machinist in town here has a 7 second car that had a fixed idler gear drive and he tried a belt drive to see what the hype was and his car lost a little 60 ft time. Put the gear drive back in and the car ran like it used to. His thought was the belt was stretching on launch and changing the timing.

So $1800 for a couple of extra horses going with a Jesel belt drive according to the chart.

The advantage of a belt drive is removing the harmonic transfer between the crank and the valve train

Has there been a proven study with actual data to reflect the difference?

Differences between building all out/max effort pieces VS bracket pieces. Everything has a place, OP asked about belt drives. Not are they better than chains or gear drives. But about belts and whast out there. He seems to be having an issue with Cloyes chains as well.

As I say each design has its place and function. Im not going to waste money on a belt when a chain will work just fine. Lower open spring pressures, street/strip type stuff why bother, but that was not the question. This became a pissing match over some people perceptions about those who use a Belt from what I see, from those who have never run one. You wanna run a timing chain on an engine like mine by all means go for it. Don't think you will find many people recommending them with spring pressures of 1400+ open, and as much on the seat as most have in their bracket cars over the nose. The question was about belt drives. I have used both of the available brands, Jesel and Australian Muscle Parts versions, as well as chains and gear drives. I prefer the Jesel over the rest. But I also understand they have their place and are not meant for all. I hope the Australian Muscle Parts one will be better than last time and come in at a lesser price. They will have their place just like every other cam drive choice out there.