Mazda Furai Concept and New Mazda RX-8 to Make World Debut at 2008 North American Int
12-24-2007, 02:15 PM
#251
Registered User
iTrader: (1)
Join Date: Dec 2007
Location: Rancho Cucamonga
Posts: 110
Likes: 0
Received 0 Likes
on
0 Posts
The next generation Z should be coming out about the same time as the next gen RX-8, amirite? It will be interesting to see how they modify their V6, since that engine is so high output to begin with, and I doubt they'll ditch it. I'm willing to bet they'll keep all motor, and I bet Mazda will too. With the new federal fuel economy law that forces manufacturers to keep a 35mpg average of car sales, forced induction and high output motors will probably drop off significantly. However, this paves the way for efficiency gains, like the 16X's direct injection.
12-24-2007, 05:46 PM
#253
Administrator
interesting ash- from what im hearing the issue is airflow for the bigger engine. the face of the 8 doesnt allow enough airflow for the cooling requirements of the bigger engine.
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
12-24-2007, 06:06 PM
#254
Momentum Keeps Me Going
interesting ash- from what im hearing the issue is airflow for the bigger engine. the face of the 8 doesnt allow enough airflow for the cooling requirements of the bigger engine.
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
that is being talked about and in the photos being circulated.
12-24-2007, 07:27 PM
#255
Registered User
Join Date: Oct 2005
Location: Toronto, Canada
Posts: 2,047
Likes: 0
Received 0 Likes
on
0 Posts
interesting ash- from what im hearing the issue is airflow for the bigger engine. the face of the 8 doesnt allow enough airflow for the cooling requirements of the bigger engine.
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
sounds like they have some engineering ahead of them- much like a certain race team did. when you stick a rotary in a place that was intended for a different engine(even a different rotary) you need to spend most of your time not just fitting it in there but redesigning it for proper cooling
________
Big **** live
Last edited by Renesis_8; 09-11-2011 at 02:06 PM.
12-24-2007, 10:01 PM
#258
Registered
There is plenty of frontal grille area to cool down a much more powerful engine. The problem lies in the fact that air can't move very well after if passes the coolers.
12-25-2007, 12:07 AM
#260
Registered User
Join Date: Aug 2006
Location: Phoenix, AZ
Posts: 217
Likes: 0
Received 0 Likes
on
0 Posts
The next generation Z should be coming out about the same time as the next gen RX-8, amirite? It will be interesting to see how they modify their V6, since that engine is so high output to begin with, and I doubt they'll ditch it. I'm willing to bet they'll keep all motor, and I bet Mazda will too. With the new federal fuel economy law that forces manufacturers to keep a 35mpg average of car sales, forced induction and high output motors will probably drop off significantly. However, this paves the way for efficiency gains, like the 16X's direct injection.
12-25-2007, 04:51 PM
#262
Go Texas Longhorns!
If Mazda could get a 1.6L NA engine working with a less aggressive rear end ratio (due to more average power), a better cat (that can handle leaner fuel mixtures) and possibly a more efficient cumbustion chamber design, it might be possible to get nearly the same economy (as the current engine) with more power.
12-25-2007, 11:50 PM
#263
Super Moderator
More MA Gossip.
For cooling (coolant) improvements a larger radiator, higher water pump input/output, and slightly larger electric fans with more blades.
Yes, larger oil coolers and obviously larger intake vents/scoops/whatever you want to call them, part of the heating issues/problems are oil temps with the 16. motor.
I agree with RG, it is the dispersal of all that hot air under the hood, not so much the actual fresh air intake volumes.
For cooling (coolant) improvements a larger radiator, higher water pump input/output, and slightly larger electric fans with more blades.
Yes, larger oil coolers and obviously larger intake vents/scoops/whatever you want to call them, part of the heating issues/problems are oil temps with the 16. motor.
I agree with RG, it is the dispersal of all that hot air under the hood, not so much the actual fresh air intake volumes.
Last edited by ASH8; 12-25-2007 at 11:53 PM.
12-26-2007, 12:49 AM
#264
The forgestar be with you
Join Date: Jan 2006
Location: Miami, Florida
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
More MA Gossip.
For cooling (coolant) improvements a larger radiator, higher water pump input/output, and slightly larger electric fans with more blades.
Yes, larger oil coolers and obviously larger intake vents/scoops/whatever you want to call them, part of the heating issues/problems are oil temps with the 16. motor.
I agree with RG, it is the dispersal of all that hot air under the hood, not so much the actual fresh air intake volumes.
For cooling (coolant) improvements a larger radiator, higher water pump input/output, and slightly larger electric fans with more blades.
Yes, larger oil coolers and obviously larger intake vents/scoops/whatever you want to call them, part of the heating issues/problems are oil temps with the 16. motor.
I agree with RG, it is the dispersal of all that hot air under the hood, not so much the actual fresh air intake volumes.
12-26-2007, 09:13 AM
#266
The forgestar be with you
Join Date: Jan 2006
Location: Miami, Florida
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
12-26-2007, 09:57 AM
#268
Momentum Keeps Me Going
If they wanted to make that work, they need to open a larger area through the sheet metal with some type of intentional ducting to create a suction drawing air out. And I would guess the vent area would need to be totally redesigned as a backward facing one, not side facing.
12-26-2007, 02:27 PM
#271
The forgestar be with you
Join Date: Jan 2006
Location: Miami, Florida
Posts: 1,237
Likes: 0
Received 0 Likes
on
0 Posts
There are a couple of small holes from the engine bay to the inner fender area behind the vents. That's how I attached my Autoexe 4-point strut bar there. so basically bolt hole size. That couple sq ins of area though is really nothing, esp compared to the other huge areas of air escape from under the hood. In essense there is no passthru there, at least not any that has cooling effect.
If they wanted to make that work, they need to open a larger area through the sheet metal with some type of intentional ducting to create a suction drawing air out. And I would guess the vent area would need to be totally redesigned as a backward facing one, not side facing.
If they wanted to make that work, they need to open a larger area through the sheet metal with some type of intentional ducting to create a suction drawing air out. And I would guess the vent area would need to be totally redesigned as a backward facing one, not side facing.
Do venting similar to the Lotus Elise (no I'm not dropping this...It's a good idea
) in the hood to remove hot air from the engine bay. They open up the vents on the side of the car and make them functional...I don't care for what. I hate it when **** is put on a car and it's not functional. The comment before about it being used for cooling the breaks...I honestly have not seen much supporting data for this but I could be wrong. Not to mention the plastic covers in the wheel well don't have vents/slits in them to move the air through the side vents.It would not cost much to make these changes.
12-26-2007, 05:25 PM
#273
Momentum Keeps Me Going
Now that you say that I could see how that would be true but how bout this...
Do venting similar to the Lotus Elise (no I'm not dropping this...It's a good idea ) in the hood to remove hot air from the engine bay. They open up the vents on the side of the car and make them functional...I don't care for what. I hate it when **** is put on a car and it's not functional. The comment before about it being used for cooling the breaks...I honestly have not seen much supporting data for this but I could be wrong. Not to mention the plastic covers in the wheel well don't have vents/slits in them to move the air through the side vents.
It would not cost much to make these changes.
Do venting similar to the Lotus Elise (no I'm not dropping this...It's a good idea
) in the hood to remove hot air from the engine bay. They open up the vents on the side of the car and make them functional...I don't care for what. I hate it when **** is put on a car and it's not functional. The comment before about it being used for cooling the breaks...I honestly have not seen much supporting data for this but I could be wrong. Not to mention the plastic covers in the wheel well don't have vents/slits in them to move the air through the side vents.It would not cost much to make these changes.
12-26-2007, 07:30 PM
#274
Power!!
Cavemancan: I'm with you on ducting the radiator exhaust out the top of the hood ala Lotus Elise/Ferrari F50 etc.
I think it's a good look and would work very well.
As others stated there are some small exhaust holes in the sides of the engine bay behind our front suspention towers that exit to the fenders where our fender vents are. They work but need to be larger IMHO.
I think it's a good look and would work very well.
As others stated there are some small exhaust holes in the sides of the engine bay behind our front suspention towers that exit to the fenders where our fender vents are. They work but need to be larger IMHO.
12-26-2007, 11:06 PM
#275
Registered User
Join Date: Oct 2005
Location: Toronto, Canada
Posts: 2,047
Likes: 0
Received 0 Likes
on
0 Posts
Cavemancan: I'm with you on ducting the radiator exhaust out the top of the hood ala Lotus Elise/Ferrari F50 etc.
I think it's a good look and would work very well.
As others stated there are some small exhaust holes in the sides of the engine bay behind our front suspention towers that exit to the fenders where our fender vents are. They work but need to be larger IMHO.
I think it's a good look and would work very well.
As others stated there are some small exhaust holes in the sides of the engine bay behind our front suspention towers that exit to the fenders where our fender vents are. They work but need to be larger IMHO.
But the RX-8 isn't a F50, Enzo or Lotus Elise, the sales will even go lower with vented hood!
________
Vaporizer Television
Last edited by Renesis_8; 09-11-2011 at 02:07 PM.