No air pump?
12-24-2002, 12:26 AM
#1
VW coulda had it...
Thread Starter
No air pump?
So, I haven't seen a reference to it in print yet, but all the pictures I've seen so far of the Renesis are missing one very critical item - The air pump! Could it be, the Renesis is a clean enough running engine that this parasitic, wheezing, needs one extra belt to drive it, space taking up, hydrocarbon-reducing and sometimes thermal-reactor cooling, heavy lump of metal that has been present on all rotaries (I think) that have been imported to the United States; been eliminated? (It was by me on my first RX-7, which caused me major grief later on)
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
12-24-2002, 12:33 AM
#2
Re: No air pump?
Originally posted by KKMmaniac
So, I haven't seen a reference to it in print yet, but all the pictures I've seen so far of the Renesis are missing one very critical item - The air pump! Could it be, the Renesis is a clean enough running engine that this parasitic, wheezing, needs one extra belt to drive it, space taking up, hydrocarbon-reducing and sometimes thermal-reactor cooling, heavy lump of metal that has been present on all rotaries (I think) that have been imported to the United States; been eliminated? (It was by me on my first RX-7, which caused me major grief later on)
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
So, I haven't seen a reference to it in print yet, but all the pictures I've seen so far of the Renesis are missing one very critical item - The air pump! Could it be, the Renesis is a clean enough running engine that this parasitic, wheezing, needs one extra belt to drive it, space taking up, hydrocarbon-reducing and sometimes thermal-reactor cooling, heavy lump of metal that has been present on all rotaries (I think) that have been imported to the United States; been eliminated? (It was by me on my first RX-7, which caused me major grief later on)
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
12-24-2002, 12:50 AM
#4
VW coulda had it...
Thread Starter
Air conditioning is a given these days, but if I could, I'd probably not get A/C if I could have a sun roof!
I meant the vane (I think) type pump bolted to the engine to provide low pressure air to the intake manifold and catylists to help burn the gasses left over from incomplete combustion.
I meant the vane (I think) type pump bolted to the engine to provide low pressure air to the intake manifold and catylists to help burn the gasses left over from incomplete combustion.
12-24-2002, 01:07 AM
#5
Originally posted by KKMmaniac
Air conditioning is a given these days, but if I could, I'd probably not get A/C if I could have a sun roof!
I meant the vane (I think) type pump bolted to the engine to provide low pressure air to the intake manifold and catylists to help burn the gasses left over from incomplete combustion.
Air conditioning is a given these days, but if I could, I'd probably not get A/C if I could have a sun roof!
I meant the vane (I think) type pump bolted to the engine to provide low pressure air to the intake manifold and catylists to help burn the gasses left over from incomplete combustion.
12-24-2002, 02:33 AM
#6
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Re: No air pump?
Originally posted by KKMmaniac
So, I haven't seen a reference to it in print yet, but all the pictures I've seen so far of the Renesis are missing one very critical item - The air pump! Could it be, the Renesis is a clean enough running engine that this parasitic, wheezing, needs one extra belt to drive it, space taking up, hydrocarbon-reducing and sometimes thermal-reactor cooling, heavy lump of metal that has been present on all rotaries (I think) that have been imported to the United States; been eliminated? (It was by me on my first RX-7, which caused me major grief later on)
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
So, I haven't seen a reference to it in print yet, but all the pictures I've seen so far of the Renesis are missing one very critical item - The air pump! Could it be, the Renesis is a clean enough running engine that this parasitic, wheezing, needs one extra belt to drive it, space taking up, hydrocarbon-reducing and sometimes thermal-reactor cooling, heavy lump of metal that has been present on all rotaries (I think) that have been imported to the United States; been eliminated? (It was by me on my first RX-7, which caused me major grief later on)
Also, I know this has been discussed, but has it been stated in print, what octane fuel the engine will require? I know NA rotaries happily burn lower octane gas, but it has been noted a couple times anyway, the Renesis has higher compression.
no, this sucker won't have an airpump, and i don't know of many cars that have any (if one does at all anymore...)... the port layout on this engine allows the HC rich gas, which stays near the trailing tip of the rotor, to be blocked from entering the expiration port in the first place, to be recycled and (eventually) properly combusted. this measure in itself is responsible for the huge reduction in HC emissions...
also, Buger (a while ago) posted a link to an article on Mazda's latest 3-way cat, which was some big leap over "conventional" 3-ways, with some sort of core material eureka factor... it's late, and i can't remember details...
so, this above technology MIGHT be making a difference, but don't forget that the cats of today are leaps and bounds above the cats of only ten years ago...
12-24-2002, 12:16 PM
#7
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Re: Re: No air pump?
Originally posted by Hercules
I'll probably just wind up putting 93 octane in it; it's now become quite a habit and I don't forsee anything BAD happening by putting a cleaner gasoline in the tank.
I'll probably just wind up putting 93 octane in it; it's now become quite a habit and I don't forsee anything BAD happening by putting a cleaner gasoline in the tank.
I thought that higher octane gas actually was a worse polluter.
12-24-2002, 12:54 PM
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when were they used last??? holy smoke man, what a question...
well, i dunno that much about it, but i do know that there were air-pumps in the FC's, and i'm pretty sure those were gone by the FD (which was saddled with a choker of an exhaust system, which was also CAST IRON!! :p)
well, i dunno that much about it, but i do know that there were air-pumps in the FC's, and i'm pretty sure those were gone by the FD (which was saddled with a choker of an exhaust system, which was also CAST IRON!! :p)
12-24-2002, 01:08 PM
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Re: Re: Re: No air pump?
Originally posted by Aesculapius
I thought that higher octane gas actually was a worse polluter.
I thought that higher octane gas actually was a worse polluter.
if i were to put in 93, i'm sure that combustion wouldn't be nearly as complete, as the flashpoint of the fuel is so much higher, and the compression of the engine is mid 9's and the air/gasoline mixture wouldn't reach tempuratures necessary for complete combustion in the cooler spots of the combustion chamber... the timing is wrong, the fuel curves are wrong, etc, etc... it's not made for it.
now, i dunno about the yankee regs, but i know that Canadian gas is about as clean as a mud-puddle, rife with sulfur, which contributes greatly to acid rain (and can quickly render catalytic converters, AND emissions equipment useless)... maybe this higher octane fuel is of a higher standard and contains less sulfur??
12-24-2002, 06:34 PM
#11
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Originally posted by wakeech
when were they used last??? holy smoke man, what a question...
well, i dunno that much about it, but i do know that there were air-pumps in the FC's, and i'm pretty sure those were gone by the FD (which was saddled with a choker of an exhaust system, which was also CAST IRON!! :p)
when were they used last??? holy smoke man, what a question...
well, i dunno that much about it, but i do know that there were air-pumps in the FC's, and i'm pretty sure those were gone by the FD (which was saddled with a choker of an exhaust system, which was also CAST IRON!! :p)
3.5 L V6 to pass emissions
12-24-2002, 11:20 PM
#12
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heh, like i said, i don't know all that much about it...
but, <<snicker snicker>> American cars, eh??
the worst imports in existance... :p
heh heh heh!! i'm such a Canadian snob...
but, <<snicker snicker>> American cars, eh??
the worst imports in existance... :p
heh heh heh!! i'm such a Canadian snob...
12-25-2002, 12:07 AM
#13
VW coulda had it...
Thread Starter
I thought I had seen an air pump in a picture showing the FD engine, but I'm not sure. I don't know what other cars had or have them, my 1969 Datsun 510 did.
Anyway, I'm glad they aren't necessary on the rotary any more!
Anyway, I'm glad they aren't necessary on the rotary any more!
12-25-2002, 12:32 AM
#14
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Octane is all about rate of burn, not cleanliness. And yes, some engines will be cleaner with lower octane, as it burns faster.
http://theoildrop.server101.com/cgi/...c;f=5;t=000144
http://www.faqs.org/faqs/autos/gasoline-faq/part3/
http://theoildrop.server101.com/cgi/...c;f=5;t=000144
http://www.faqs.org/faqs/autos/gasoline-faq/part3/
12-25-2002, 11:44 AM
#15
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Originally posted by randyc
Octane is all about rate of burn, not cleanliness.
Octane is all about rate of burn, not cleanliness.
thanks for the info bro.
12-26-2002, 10:27 AM
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Originally posted by randyc
Octane is all about rate of burn, not cleanliness. And yes, some engines will be cleaner with lower octane, as it burns faster.
Octane is all about rate of burn, not cleanliness. And yes, some engines will be cleaner with lower octane, as it burns faster.
Thanks for the info!
06-25-2008, 11:13 PM
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KKManiac was probably refering to this...
http://www.mazsport.net/store/index....t_detail&p=154
There is an air pump in the RX8, it's on the passenger side, right under the strut bar.
http://www.mazsport.net/store/index....t_detail&p=154
There is an air pump in the RX8, it's on the passenger side, right under the strut bar.
06-26-2008, 12:35 AM
#24
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