240sx only hitting 70mph on 5th gear, at most. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Millie Kentner · 04-25-2013, 11:56 PM

Hey, just a warning: Do not scroll down unless you are prepared for major n00bage, I'm new to the world of Nissan, hell, I've only been driving for about a year.
+
Long description.

Okay, I recently bought a 1990 240sx(ka24e, single cam, you get the point.)
I'm no gear head, so when I saw this straight bodied 240 for $1300, I jumped all over my first opportunity to throw my money at the seller, and jump into the drivers seat. Also, it's aesthetically flawless for it's age. With 150k miles on it.
It needs a paint job, but that's beside the point.

It actually runs, with no real tech problems(does not break down).
However, it is EXTREMELY slow. And I don't mean that in a "ughh, Im a race car driver, and this is not fast enough for meee" kind of way, when I say it's slow, I mean that people honk at me whenever a light goes from red to green, because I take off so slowly.
I was wondering if anyone could give me some input on why my car may be acting so strange? At first I thought that the first thing I should do was get a new intake, but according to mighty car mods(Im sorry if that is super n00bish) intakes do not really do much for a car.

I'll sort the problems out in sections!

SLOW:
At max(on a GREAT day) it hits about 65 mph at top speed. (in a straight line, and it takes about a 45 seconds to hit 60)

NO POWER:
This probably goes along with speed, but this thing is highly underpowered. I know old cars are supposed to lose power after awhile, but let me explain.
Flooring it in this car does absolutely nothing. It does not push it, and it's impossible to redline.(Im not trying to redline it, but it's impossible. Haha)
As a matter of fact, when I floor it, it makes a weird noises, and it SLOWS DOWN.
Also, I take a hill up to school everyday(STEEP hill) and I could hear the fluids from my radiator boiling everytime I reach the top. (I know half of you want to kill me at this point, for abusing my car, but I have no other means of transportation

)

Fun fact:
I raced my mom's 2000 4runner, and well.... I got owned.

Also, one last thing, I hear sort of rumbling noises coming from behind me when I drive. (Assuming it has something to do with the exhaust?)

Here are some pictures of what I have under my hood.
And yes, that is duct tape on the intake pipe thingy.

https://sphotos-a.xx.fbcdn.net/hphot...89281812_n.jpg

https://sphotos-a.xx.fbcdn.net/hphot...16202124_n.jpg

https://sphotos-b.xx.fbcdn.net/hphot...70829731_n.jpg

THANK YOU FOR THE HELP!!!

04-25-2013, 11:56 PM	#1
Millie Kentner Join Date: Feb 2013 Location: Rosemead Age: 31 Posts: 8 Trader Rating: (0) Feedback Score: 0 reviews	240sx only hitting 70mph on 5th gear, at most. Hey, just a warning: Do not scroll down unless you are prepared for major n00bage, I'm new to the world of Nissan, hell, I've only been driving for about a year. + Long description. Okay, I recently bought a 1990 240sx(ka24e, single cam, you get the point.) I'm no gear head, so when I saw this straight bodied 240 for $1300, I jumped all over my first opportunity to throw my money at the seller, and jump into the drivers seat. Also, it's aesthetically flawless for it's age. With 150k miles on it. It needs a paint job, but that's beside the point. It actually runs, with no real tech problems(does not break down). However, it is EXTREMELY slow. And I don't mean that in a "ughh, Im a race car driver, and this is not fast enough for meee" kind of way, when I say it's slow, I mean that people honk at me whenever a light goes from red to green, because I take off so slowly. I was wondering if anyone could give me some input on why my car may be acting so strange? At first I thought that the first thing I should do was get a new intake, but according to mighty car mods(Im sorry if that is super n00bish) intakes do not really do much for a car. I'll sort the problems out in sections! SLOW: At max(on a GREAT day) it hits about 65 mph at top speed. (in a straight line, and it takes about a 45 seconds to hit 60) NO POWER: This probably goes along with speed, but this thing is highly underpowered. I know old cars are supposed to lose power after awhile, but let me explain. Flooring it in this car does absolutely nothing. It does not push it, and it's impossible to redline.(Im not trying to redline it, but it's impossible. Haha) As a matter of fact, when I floor it, it makes a weird noises, and it SLOWS DOWN. Also, I take a hill up to school everyday(STEEP hill) and I could hear the fluids from my radiator boiling everytime I reach the top. (I know half of you want to kill me at this point, for abusing my car, but I have no other means of transportation ) Fun fact: I raced my mom's 2000 4runner, and well.... I got owned. Also, one last thing, I hear sort of rumbling noises coming from behind me when I drive. (Assuming it has something to do with the exhaust?) Here are some pictures of what I have under my hood. And yes, that is duct tape on the intake pipe thingy. https://sphotos-a.xx.fbcdn.net/hphot...89281812_n.jpg https://sphotos-a.xx.fbcdn.net/hphot...16202124_n.jpg https://sphotos-b.xx.fbcdn.net/hphot...70829731_n.jpg THANK YOU FOR THE HELP!!!