Difference between s5 and s4 rotor housings/rotors?
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Difference between s5 and s4 rotor housings/rotors?
I've been searching this for a while and the only thing I could come up with is that the s5 has higher compression rotors.
I'm asking because I'm trying to figure out if I can use my s5 rotors with s4 rotor housings.
Is there any advantage between the s4 and the s5 housings or rotors?
I basically have a s4 and a s5 engine that are both blown, and I have 2 good rotor housings out of a s4.
I'm trying to rebuild an engine using the parts I have, plus a rebuild kit I'm buying off a friend.
I'm on a budget and would rather not sell my sevens.
I'm asking because I'm trying to figure out if I can use my s5 rotors with s4 rotor housings.
Is there any advantage between the s4 and the s5 housings or rotors?
I basically have a s4 and a s5 engine that are both blown, and I have 2 good rotor housings out of a s4.
I'm trying to rebuild an engine using the parts I have, plus a rebuild kit I'm buying off a friend.
I'm on a budget and would rather not sell my sevens.
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The timing is so slightly off it doesn't matter. You can use the S4 housings and S5 everything else.
The important part is that whatever rotors you use, you need to use that series front and rear counterweight
The important part is that whatever rotors you use, you need to use that series front and rear counterweight
I read a couple posts/threads about it but I haven't been able to find one that shows some results of if it runs funny.
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I am right now actually. I just didn't want to put everything together and have it run funny. (Not that it might not run funny anyways, lol.)
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Not true,The timing will be off almost by 20 degrees if you use the S5 front hub on S4 rotors.BDC confirmed that like 2 years ago and i did it myself 2.
I know I owned a miata for two weeks (I'll never drive another piston powered vehicle) and the timing was actually set a little bit off and it made it have an increase in power, but then the timing got worse and it felt like death.
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And to really make this discussion interesting, what if you have s6 housings and everything else s4?
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Yeah, I've been told the s4 rotors weigh a little bit more than the s5 rotors.
So does anyone know how the timing being will cause the engine to run?
So does anyone know how the timing being will cause the engine to run?
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I've never understood how the TIMING could be off by moving the sparkplug hole location. TDC is TDC is TDC is TDC is TDC is TDC.
Both series four and series five fire at 5 degrees ATDC for LEAD and 20 degrees ATDC for TRAIL.
Did I mention TDC is TDC is TDC is TDC is TDC??????? I don't give a flip where the sparkplug is in the housing, if Mazda wants the thing to fire at 5 degrees TDC.........where the plug is in the housing does not matter.
Mazda did NOT change the timing when they moved the sparkplug hole. It's still the same on a series five as a series four.
Both series four and series five fire at 5 degrees ATDC for LEAD and 20 degrees ATDC for TRAIL.
Did I mention TDC is TDC is TDC is TDC is TDC??????? I don't give a flip where the sparkplug is in the housing, if Mazda wants the thing to fire at 5 degrees TDC.........where the plug is in the housing does not matter.
Mazda did NOT change the timing when they moved the sparkplug hole. It's still the same on a series five as a series four.
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I've never understood how the TIMING could be off by moving the sparkplug hole location. TDC is TDC is TDC is TDC is TDC is TDC.
Both series four and series five fire at 5 degrees ATDC for LEAD and 20 degrees ATDC for TRAIL.
Did I mention TDC is TDC is TDC is TDC is TDC??????? I don't give a flip where the sparkplug is in the housing, if Mazda wants the thing to fire at 5 degrees TDC.........where the plug is in the housing does not matter.
Mazda did NOT change the timing when they moved the sparkplug hole. It's still the same on a series five as a series four.
Both series four and series five fire at 5 degrees ATDC for LEAD and 20 degrees ATDC for TRAIL.
Did I mention TDC is TDC is TDC is TDC is TDC??????? I don't give a flip where the sparkplug is in the housing, if Mazda wants the thing to fire at 5 degrees TDC.........where the plug is in the housing does not matter.
Mazda did NOT change the timing when they moved the sparkplug hole. It's still the same on a series five as a series four.
#19
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S5 and S6 rotor are the same with the only difference being some upgrades on the spark plugs area(coolant passages)TDC is TDC we all know that buddy but if you use the s5 housings with a s4 hub your timing wont be perfect,the hub size is different between series and the timing mark is in a different spot cause of the different spark plug locations.
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TDC is TDC we all know that buddy but if you use the s5 housings with a s4 hub your timing wont be perfect,the hub size is different between series and the timing mark is in a different spot cause of the different spark plug locations.
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S5 and S6 rotor are the same with the only difference being some upgrades on the spark plugs area(coolant passages)TDC is TDC we all know that buddy but if you use the s5 housings with a s4 hub your timing wont be perfect,the hub size is different between series and the timing mark is in a different spot cause of the different spark plug locations.
#24
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Ignition timing is determined by the CAS. The geometry of the motor has nothing to do with it. The front pulleys are slightly different diameters, and they have to be mounted on the corresponding hub, S4 pulley on S4 hub, in order for the little marks to be in the right spot. You can put a S4 hub/pulley on a S5 rotating assy though. But you HAVE to match the rotors and counterweights for the series or bad things happen.
All N/A have the exhaust diffusers.
All N/A have the exhaust diffusers.
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Ignition timing is determined by the CAS. The geometry of the motor has nothing to do with it. The front pulleys are slightly different diameters, and they have to be mounted on the corresponding hub, S4 pulley on S4 hub, in order for the little marks to be in the right spot. You can put a S4 hub/pulley on a S5 rotating assy though. But you HAVE to match the rotors and counterweights for the series or bad things happen.
It won't matter that I'm using the s4 rotor housings?
Now I'm very confused.