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Forced Induction Turbochargers and Superchargers..Got Boost?

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Old Dec 12, 2008 | 10:11 AM
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Posted here by request.



I had the opportunity to drive TerryCS's car about half an hour ago.

[TEASER]

I can sum it up in 1 word.

OMGWTFBBQ.


This is unlike any turbo car I've driven before. I've been in 600whp Supras, 500whp STIs, 480whp S2000, reflashed 335s, vipers, z06s, etc. I knew it wouldn't be the typical lag lag lag lag lag lag WOOOOAH feeling of a typical low compression high boost car. Realistically, I was expecting it to feel close to the turboed s2k. Smooth power, with a small surge of power as the turbos spooled.

Boy, was I wrong.

It felt... stock. I drove around normal. It felt stock. It didn't even feel or sound like a fast car. Then I floored it. Other than really crisp shifts, the car felt.... stock. There was no increase in power. Okay, cool. Maybe the boost is off. At least the car looks and sounds cool.

Then it dawned on me. This car is going through gears faster than the 7AT does. I'd been used to faster gears since the 7AT gearing is rather agressive on the first two, but this was different.

I went again. Redline first. Redline second. My eyes were pinned on the speedo; it was moving at the pace a stock G would be going from 40-60 in second gear. Except I was in third. 70, 80, 90, 100. 110. DOMO No ****ing way. I'm in 4th gear, and the acceleration STILL isn't decreasing.

Then Terry tells me "You gotta do it with VDC off. It's way faster. Oh, and it's on the lowest boost setting." :icon09:

[/TEASER]

Impressions.

The car is incredible. I've driven high boost cars. This does NOT feel like one. It retains every bit of power a stock G has. The turbo spool is SO smooth and fast that... I really have no idea when it spools. I was paying attention to specifically try to see when it spools, but without looking at readouts, I wouldn't be able to tell. It's power on demand. The 335 has minimal lag. This has NO lag. Remember, even NA, this motor's power rivals that of the 335 under boost. A NA 335 has less power than a 328.

The tranny shifts like stock. Normal driving? Normal shifting. Normal driving in DS? Normal DS shifting. WOT? The thing shifts like you're powershifting a MT. Except it's built to do that, and its a HECK of a lot smoother. DSG/SMG/SST has nothing on this slushbox. Hell, you can't even call it a slushbox anymore.

Infiniti, you need to be listening. A TT VQ37HR is in order from the factory.

I want a G37TT. I'll be first in line to buy one.

Oh, and even though I know 9psi is faster than 5, I couldn't FEEL a difference. It's that smooth.

Hell, if I didn't see the FMIC and didn't know it was boosted, I'd think this was just another G sedan with an exhaust.


Videos to come later. :BOUNCE: I'm off at 9 and I don't have a card reader on me.

Terry




VIDEOS:

First try...

This run was shut down to to excessive wheelspin.

5 PSI.



Attempt #4.



After... like 8 tries, success!

1st Gear: me feathering the throttle; I'm fighting to keep traction, and I'm not an experienced drag racer, but I'm staying around 60% or so.

2nd gear: about 80-85% throttle

3rd gear is when I get to finally open it up 100%

Oh, and still 5 PSI.




This car is tuned for up to ~9 psi boost....
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Old Dec 12, 2008 | 10:37 AM
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You make no dam sense. You say its so fast but you cant feel that its fast? lol...
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Old Dec 12, 2008 | 10:47 AM
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Originally Posted by juicedZ
You make no dam sense. You say its so fast but you cant feel that its fast? lol...
Exactly. Passengers would never know it's even boosted other than the loud (relative to stock) exhaust.
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Old Dec 12, 2008 | 10:50 AM
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'refined'


turn up the boost and you should hit some lag>BOOM effects. so you can get what you want. (or so I suspect).
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Old Dec 12, 2008 | 11:02 AM
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Even at high boost (~9.2 PSI), you don't really notice it.

Total boost is simply just too low to feel

Talk about sleeper.... hehehe
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Old Dec 12, 2008 | 12:04 PM
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Nice!
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Old Dec 12, 2008 | 12:10 PM
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Mike...come to ZdayZ Big Dawg event...there will be a lot of cars there that will let you forget about that ride.....and without lag also..
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Old Dec 12, 2008 | 12:24 PM
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25psi+ FTW

Originally Posted by XKR
Mike...come to ZdayZ Big Dawg event...there will be a lot of cars there that will let you forget about that ride.....and without lag also..
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Old Dec 12, 2008 | 01:17 PM
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Originally Posted by XKR
Mike...come to ZdayZ Big Dawg event...there will be a lot of cars there that will let you forget about that ride.....and without lag also..
are you claiming no lag?
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Old Dec 12, 2008 | 01:39 PM
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All turbo cars have spool up time.

This particular VQ is not running reduced compression, so between that (all of the stock power), and being an automatic, the spoolup time is virtually gone.

I'm not amazed at the power; I've been in plenty of faster cars. The delivery of the power is what is amazing. It is SMOOTH. There is no huge surge.

It is very refined, as stated above. This G maintains its refinement; it's not an all out performance car.

Other mods on this car include Stoptech BBK and some other goodies...
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Old Dec 12, 2008 | 01:52 PM
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nice car and all but that last video posted looks slow as hell. look how slow it takes hitting from 80 to 100 mph. i can understand the slow 0-60 since you said you weren't flooring it and also traction issues.
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Old Dec 12, 2008 | 02:07 PM
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What turbo kit is in this G?
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Old Dec 12, 2008 | 05:25 PM
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Originally Posted by DanielW
are you claiming no lag?
Well not the "lag lag lag lag lag lag WOOOOAH " Mike claims he is use to

The only turbo that have almost zero lag is turbos with a sequential setup like the 93-95 RX7 has.....all these new BB turbos have around the same amount of minimal lag.

If you watch the last video...you can tell when the turbos come online....and it looks about the same as Redash's car.

Last edited by XKR; Dec 12, 2008 at 05:54 PM.
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Old Dec 12, 2008 | 05:33 PM
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i know lag is bad but thats what makes a turbo feel like a turbo and not a supercharger. I love it when my cars spooling up and then just takes off, feels like such a violent amount of power coming on. I know its not ideal for racing but thats the fun of it for me :/ (when u want instant power just brake boost)
just my .02

Last edited by juicedZ; Dec 12, 2008 at 05:41 PM.
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Old Dec 13, 2008 | 04:07 AM
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Does this car have the new 7sp transmission?
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Old Dec 13, 2008 | 06:20 AM
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Originally Posted by captj3
Does this car have the new 7sp transmission?
No. It's an 07 with 5AT.

Last edited by terrycs; Dec 13, 2008 at 06:35 AM.
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Old Dec 13, 2008 | 07:00 AM
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Nice how much $$$$ of you don't mind ?
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Old Dec 13, 2008 | 07:19 AM
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Originally Posted by RudeG_v2.0
What turbo kit is in this G?
Originally Posted by terrycs
No. It's an 07 with 5AT.
^ *cough* *cough*
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Old Dec 13, 2008 | 08:08 PM
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*cough* * cough* ok thanks. I was curious because I have the new 7sp in my FX 50. I wanted to know how it handled boost. I think it will do better than the 5sp.
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Old Dec 13, 2008 | 08:15 PM
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Originally Posted by captj3
*cough* * cough* ok thanks. I was curious because I have the new 7sp in my FX 50. I wanted to know how it handled boost. I think it will do better than the 5sp.
That wasn't directed at you. Sorry for the misunderstanding. That was directed at terrycs, since he came on here and answered your question, but didn't answer the question about which turbo kit is on his car.
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