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Discussion Starter #1
so every time i accelerate my evo makes a rattling noise but it only makes the noise when its under 2000rpm every gear except 1st does anyone know what it might be?
 

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Discussion Starter #3
i just got the car on monday so its not my driving i had evo 8 never had that problem
 

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If it's stock exhaust then yes, it's your driving. If it's a loud, rumbly exhaust then it's your exhaust.

If it's a vibration that you feel vibrating your entire buttocks, then you are simply giving way too much throttle at way too low of an RPM...
too much load under low rpm, kiss your rods goodbye.
 

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What are you doing driving under 2,000 RPM's in any gear but first? It's just how you're driving. Keep it no lower than 3,000.
 

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Discussion Starter #9
thanks dynastyx will not drive under 3000rpm any more i was trying to save gas by shifting early since the evo is horrible on gas but i see that is not worth it anymore rather spend money on gas than on repairing my car
 

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Keeping it >3k rpm all the time is a stretch to say the least. You can drive under 2k rpm no problem, I do it all the time... the throttle position is key though. I tend to gently caress the throttle when I'm that low, then at 2.5k rpm it'll take whatever I want to give it. I've logged what my tune is set up for and for my particular tune this is extremely safe. I only hit like 23psi on stock turbo until I'm well into the 3,000's where it ramps up to 27psi.

Stock tune is similarly safe. It is moderately rich and limited to what, 22-23psi depending on altitude and weather conditions?
 

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I also here a noise when pushing it sometimes! I noticed it happens exactly when I switch from first gear to second.. so it would be at 6.5-7k rpm. It sounds like its coming from the back of the car, My car is stock besides a cat back exhaust! I'm pretty sure I also heard the noise when I had the stock cat back. Am I crazy or is this common?
 

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I'm not telling him to cruise at 6,500. I keep it within 3-3,500 when I'm cruising. Car feels funky when I give it gas at 2,500 RPMs- hence I don't do it.
 

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I see you're new to the X. This car is the car of a thousand noises. It's either your driving or some heat shield somewhere rattling would be my best guess. The shield on my exhaust manifold is missing a bolt and it likes to rattle under very specific conditions.
 

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Discussion Starter #16
yea im new im going to take it to a mechanic and see whats wrong i hear the noise coming from the front of the car
 

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4 solid engine mounts pretty much only allows me to hear my engine running. I don't think I would even be able to hear a transfer case wine unless it was on the way out the door! :innocent:
 

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too much load under low rpm, kiss your rods goodbye.
Damn I didn't know this I'm also new to evos & sticks. I never drive at low RPMs because the car don't feel like it's driving right.
 

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Keeping it >3k rpm all the time is a stretch to say the least. You can drive under 2k rpm no problem, I do it all the time... the throttle position is key though. I tend to gently caress the throttle when I'm that low, then at 2.5k rpm it'll take whatever I want to give it. I've logged what my tune is set up for and for my particular tune this is extremely safe. I only hit like 23psi on stock turbo until I'm well into the 3,000's where it ramps up to 27psi.

Stock tune is similarly safe. It is moderately rich and limited to what, 22-23psi depending on altitude and weather conditions?

I'm stock now, but I had no idea we were running so much boost! This is my first Evo, but my eclipse's 4G63 ran 13-15psi stock, and I was running 22psi tuned with a EvoIII16G turbo. I was told if I used race gas I could turn it up to 26psi on my tune.

27psi on pump gas is impressive, and I guess a testament to how stout the 4B11 is.
 
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