Forced Induction Discussion of turbos , superchargers , and nitrous upgrades on the G35

Supercharged Guys...

Old Feb 24, 2008 | 07:05 PM
  #2  
BoostinJaxLR's Avatar
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That could posssibly be due to gearing of the 5at being on a slight incline. There isnt a lot of low end torque down there anyway.
 
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Old Feb 24, 2008 | 07:06 PM
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I don't know, I wish I can tell you but I havent seen my car for a month Sounds like you need more Power!!! JK
 
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Old Feb 24, 2008 | 07:33 PM
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5th gear going 45mph @ 2000rpm, your car is gonna feel sluggish. We all know that power is linear on a SC'd car. That's the beauty of being a 6MT, just to a quick downshift to 4th or 3rd and the sluggishness is gone.
 
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Old Feb 24, 2008 | 07:38 PM
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my car never get sluggish, even when i am on the highway in 6 gear and i push it, it respond right away
 
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Old Feb 24, 2008 | 08:12 PM
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at 2k rpm, my turboed car is sluggish also. I so badly want a TT set up. maybe that will help it out a little. As for the sc'ed, i thought you had a lot more power in the lower end than you are talking about.
 
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Old Feb 24, 2008 | 09:35 PM
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why would your car's acceleration out of boost be any different than a stock car?

are you thinking it should?
 
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Old Feb 25, 2008 | 12:46 PM
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problem is you're in 5th gear
try downshifting a gear or two and you'll get power

other thing contributing to the issue is the 5AT does not lock up the tq converter below 3400 rpms. So you will not get the full power to the wheels until it locks up. Despite the engine actually working hard, the transmission will not allow the power to transfer through to the driveshaft until the tq converter locks.

Also, there is a slight lag while waiting for the 5AT to lock up the tq converter

final drive swap to shorter gearing might help
 
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Old Feb 25, 2008 | 01:16 PM
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I don't have any FI, but maybe its just relativity, where you feel so much more power while you're in boost that when you're not, it just feels sluggish. Add that on top of being low mph, low rpm and in high gear. Its like when I went from driving my G back to my stock integra. That car used to feel a certain way when I drove it, but when I got back into it, I'd mash the pedal and the car would make all this noise and not go anywhere.
 
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Old Feb 25, 2008 | 01:22 PM
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What sentry said is what I was trying to say earlier. Your only problem is being in 5th gear @ 2000rpm going 45mph. Any car would feel sluggish. Just downshift and you should be okay.
 
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Old Feb 25, 2008 | 07:21 PM
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trq converter has nothing much at all to do with it . Think about it....5th gear is the overdrive gear and is made for 50 mph or faster . If you kick it down to 3rd where you should be going up a hill going 45 mph , the rpms will jump and power will be had
 
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