Top Gear Z vs Z4

UNKNOWN_370

If you FI the Z, a lot of the harshness in the engine would resolve. Then people will say the Z motor sounds too sedate. When comparing asian to german, people will always nitpik the asian while letting a lot of things slide on the german car.

Red__Zed

UNKNOWN_370

Turbos change the whole sound of the car. It actually quiets down NA cars a bit, engine will sound smoother

Red__Zed

Pretty sure a turbo does not make an engine sound any smoother.

Hambone1

Unknown, are you thinking of some of the stock FI engines that are on the market maybe?

UNKNOWN_370

YouTube - GTM 370Z TWIN TURBO CUSTOMER TEST DRIVE

In this video, the first thing customer notices, his engine is smoother and a little quieter. Then he notices the adrenaline of his turbo. This is quite a normal effect for a v6.

Drive a 328 and a 335I. At WOT the 328 is louder.

Hambone1

No speakers at the moment, I'll take your word for it. I'm by no means an expert on turbos so I don't doubt you without listening to it

Red__Zed

Red__Zed

the smoothness he is referring to is the power delivery, by the way, and then the suspension at the end.

UNKNOWN_370

I'm no expert either but I have owned a couple of turbocharged cars. I've driven a few turbo and non turbo as well. I used to own a GN and I remember my 3.8 being smoother than the v8. I just had that turbo whistle.

Red__Zed

A turbo sitting on your exhaust pipe has literally nothing to do with engine smoothness. It may quiet down the exhaust note, and it will remove some high frequency components, but the harshness in the motor won't disappear with FI...

UNKNOWN_370

They didn't do any suspension work. That's the GTM garage and a stock Z with turbo. You can even here the engine is lower compared to other vids. The only turbo I've heard that's louder than stock is that one they remove the muffler to install.

UNKNOWN_370

I didn't say disappear I said smooth it out a lot... anyway red zed. the turbo is placed at the exhaust but there is a lot of prep that goes into the engine to make that turbo operaiional and reliable. But ok red. U know everything.

Let me just correct one thing. I been saying turbos. I should be saying twin turbos. Single turbos have a different effect. That part is my bad.

m4a1mustang

The harshness won't dissappear but it might abate some of it. I know when I added my CBE and Injens, the engine was not quite as harsh above 6k but it certainly wasn't smooth. There was a noticable improvement, though.

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Red__Zed

3:12 is were he mentions suspension smoothness relative to his car.