Acura at NSXPO
#42
Senior Moderator
I have that paint on my 22 MDX but I’m not in love with it. (My dealer stated that it’s their most popular color, which baffles me.) I’ll probably return to black on my next go around.
#43
Air Vice Marshal
#44
Moderator
I can see the Type S with all the Advanced features in a couple years.
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F23A4 (08-31-2021)
#45
Senior Moderator
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#46
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F23A4 (08-31-2021)
#47
Moderator
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#48
Senior Moderator
#49
Suzuka Master
Join Date: Sep 2006
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The cylinder head does not look promising for inexpensive power. Very small ports looking at the picture. Might be deliberate to prevent overpowering the drive train. Nothing a CNC program can't handle if there is enough meat to shave off. But not cheap.
#50
10AT is probably OK, since the Accord folks have been able to make big power on it without blowing anything up. It's the SH-AWD system I think that's the bottleneck, considering Honda didn't have to pull power on the Accord in lower gears but did for the RDX/TLX that have SH-AWD...
#51
Air Vice Marshal
I suspect the small exhaust ports are to get the gas velocity up to spin the turbo faster to minimize lag. I think they are protecting the SH-AWD with software. I remember reading somewhere where Acura was bagging about power, but threw in a caveat about all the power while also maintaining reliability.
#52
Air Vice Marshal
More engine power is unlikely in this version of the car. The engine is brand new, so new cylinder heads and other changes are a big deal. Engineering, testing, EPA certifications, etc. etc.
#53
Suzuka Master
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I suspect the small exhaust ports are to get the gas velocity up to spin the turbo faster to minimize lag. I think they are protecting the SH-AWD with software. I remember reading somewhere where Acura was bagging about power, but threw in a caveat about all the power while also maintaining reliability.
#54
Air Vice Marshal
Agree, Its just like the venturi's in a carburetor sized to the engine to keep velocity up. And just like a 650CFM will pass less air than an 850CFM small ports will pass less boosted air than larger ports. The have small ports running 15.1PSI with no top end now, where are they going to go with these heads? The 3L S58 is putting down a lot more power with slightly more boost & the B58 is more powerful with slightly less boost.
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#55
Racer
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pyrodan007 (09-02-2021)
#56
They've succeeded in sending me to BMW to purchase a car that the Base and Type-S TLX are only pretending to be. For me, the TLX is too slow, too big, and too heavy. Its major positive features are appearance (the sheet metal is writing checks that the car can't cash) and the SH-AWD. The car does handle well for such a big Bertha, but even in the base TLX, one is always aware of its weight.
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