M20 - dry-sumped, ITB's .... in a Commodore?!

[gtdragon980]

if you really care, no chain or belt;Direct gear drive.

This would be so awesome if it could be done!

[Exodus_2pt0]

With all the modding geniuses why hasn't someone converted the belt to a chain or something stronger than rubber cause that sounds cheaper than a full motor swap. Or am i speaking from la-la land and what im saying is way too difficult?

There is nothing wrong with a timing belt. It is actually a more efficient design than a timing chain. Timing chains are for the masses who wouldn't even change their oil if it weren't for Jiffy Lube.

[LJ851]

Belts go 13k+ rpm on Ducatis...


Most of the times i have done a timing belt on an M20 the waterpump was worn and needed replacement.

[bmwstephen]

cost of changing my e46's waterpump costs as much as the whole timing belt job on an e30 anyway (which requires you to tackle the water-pump). their rate of failure is the same at 60k.. if not sooner since they are composite construction. Biggest difference is when the other timing components on an m54 fails, then it becomes diminishing returns.

[Wanganstyle]

^
Agreed
lighter weight stands out to me

It's so easy to change anyway

Seeing that makes me miss my old m20, those are great engines, just not really the fad right now
they sound awesome, sewing machine noise an all

Lighter AND Cheaper to keep in 100% condition. why bother caring if not 100%?

A worn out chain/timing set from some junkyard motor does not count as OK to me... a brand new timing belt and tensioner and a M20 is 100%; cost of a brand new chain/sproket/timing set is more $$$ and heavier rotational mass


Belts go 8,000-9,000 rpm+ all the time in subarus, hondas, mazda's. If one cannot afford a belt change in a M20 and wants to beat on the car - they cannot afford the car.

chains dont as much in OEM applications - my S54 could go 8400rpm daily but its overall cost could buy a s2k motor+subaru sti engine.


if you really care, no chain or belt;Direct gear drive.

Local M12 engine got converted to gear drive for efficiency

[BUDNUNTA]

belts are superior to chains in every aspect except for maintenance.

^
Agreed
lighter weight stands out to me

It's so easy to change anyway

Seeing that makes me miss my old m20, those are great engines, just not really the fad right now
they sound awesome, sewing machine noise an all

[Robotin]

love those medusa headers!!! wish my m10 could hace shitl ike that!

[CarsSuck]

belts are superior to chains in every aspect except for maintenance.

oh yeah, those are RD headers.

I kind of disagree. I would much prefer to change a belt and do a little other maintenance every few years compared to having to screw with chains, sprockets, rails, guides and oil seals once. So IMO, they're better in every way.

[nando]

With all the modding geniuses why hasn't someone converted the belt to a chain or something stronger than rubber cause that sounds cheaper than a full motor swap. Or am i speaking from la-la land and what im saying is way too difficult?

belts are superior to chains in every aspect except for maintenance.

oh yeah, those are RD headers.

[canakami]

Dem headers

[Jon325i]

That dry sump set up looks sweet, bet it cost some bucks too. One can really drop a motor down to lower CG with that configuration.

Jon

[slammin.e28]

That Commode was swapped to an M20 anyways.

[Mr_Tripp]

That's called an M30.

cause that sounds cheaper than a full motor swap.

[slammin.e28]

Well, belts are smoother than chains. If you expect to do lots of maintenance/other work, a belt is no deterrent.

I just hate that feeling in the back of my head that A) the belt breaking will grenade the engine, B) on my way to buy the belt it will grenade, C) I fuck something up dicking around changing the belt, D) I'm not going to find time to change the belt and it will grenade the engine.

[slammin.e28]

With all the modding geniuses why hasn't someone converted the belt to a chain or something stronger than rubber cause that sounds cheaper than a full motor swap. Or am i speaking from la-la land and what im saying is way too difficult?

That's called an M30.