IHE intake header exhaust availability and potential
- Thread starter chimchim
- Start date
eting_pro5
Member
- :
- '03 Pro5
Just curious because i know absolutely nothing about Thermodynamics or Material Sciences why would the all aluminum block be bad for turbo? does it have to do with heat?
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- 09 370Z Nismo
cast iron blocks blow at very high turbo PSI, PSI being pounds per square inch. Aluminum just can't hold as much PSI as cast iron. therefore will crack under less PSI. Although a lot of other things will go first before that block. I just wouldn't do it.
the point beingaluminum block is weight savings, yet for some reason the mz3 weighs more than the p5 =/
also a lot of the ford motors, like the 2.3 in the mz3 have platic intake MANIFOLDs, and would probably benefit best from replacement
the point beingaluminum block is weight savings, yet for some reason the mz3 weighs more than the p5 =/
also a lot of the ford motors, like the 2.3 in the mz3 have platic intake MANIFOLDs, and would probably benefit best from replacement
shaundarbie
Member
- :
- 2006 Mazda 3s Sedan 5-speed
Wasn't it the Mazda6 MPS concept that gets 280hp out of a turbocharged 2.3L? I would assume it's the same basic block as the 3...
I dont know where you heard aluminum blocks aren't good for turbo-charging, they would not break under pressure, unless your going to boost it at 22 psi. I heard in this months SCC magazine that they heard rumors of the Mazda speed 3. "Supposedly" they are looking for a turbo kit right now. And, since it is based on the Volvo s40 platform, you can expect all wheel drive. That would be ****** awsome. 230 hp (or so), all wheel drive and a six speed manual with paddle shifting option, I would be in heaven.
Aluminum blocks can withstand enough psi. My friend in san Jose is running 26psi on 8.0:1 Weisco pistons in his full aluminum Cosworth Vega (it has free standing cylinder walls like a Honda) and puts out 431 hp at the wheels.
It's all about tuning.
GM is putting out 1000 hp with fatory components on the Ecotech.
Britt
It's all about tuning.
GM is putting out 1000 hp with fatory components on the Ecotech.
Britt
There should be no problem with the aluminum alloy block. LS1's have had no trouble with forced induction at lower psi (4-7) stock. The only reason they have not gone higher is the fact that the compression ratio is already pretty high (10.1:1). Ford's 4.6 DOHC engine (pre-2003) has been boosted by many many people and that has an aluminum block as well.
Also, the plastic intake should actually benefit due to less heat soak than one made from metal.
Also, the plastic intake should actually benefit due to less heat soak than one made from metal.
The intake that your friends have had redone were probably ported for better airflow which is the main reason people buy aftermarket intake manifolds. That is where you see your HP gains from. The material that the manifold is of from should have no effect on power production. If you have two dimensionally identical intakes and one was made of aluminum and the other of plastic I would expect better numbers from the plastic one (maybe very small) because of less heat soak.
Anyway, my point is that people shouldn't be disappointed or think it is cheaper that you get a plastic intake manifold.
Anyway, my point is that people shouldn't be disappointed or think it is cheaper that you get a plastic intake manifold.
