Noise heard at 140km/h

[Nasrallah]

I have 99 EK3 sedan with tranny and no mods it is the same as when it came out the firm. I am using Super gas.

Question

Sometimes on the highway, when the car passes the 130km/h mark and its almost approaching 140km/h, a weird noise is heard. A noise I believe is coming from the engine area (I could be wrong) so I'll back off the accelerator and drop to 115-120km/h.....the noise stops.

The obvious solution to this is to slow down, which I do. But there are certain sections on the highway that you have to take it easy and some where you can "speed up". Sometimes you be cruising at say 120/130 and still see those bright lights in your rear, no problem an easy maneuver into the left lane........everyone is happy:I just want to be sure its not a major issue.

My mech told me that my car, in his opinion is in tip shape and it is probably because I am using Super. This is plausible but I want to get other opinions.

Have anyone else experience this?

Thanks to all

[VexXx Dogg]

can you describe the noise?

thump
clank
rumble
scream
whistle
...well you get the point

[JDM_GUY]

^^ what he said

[ksimon]

I 2nd what he said

[Nasrallah]

can you describe the noise?

thump
clank
rumble
scream
whistle
...well you get the point

sorry....

It sounds like a rumble....I wish i can record it...

[ingalook]

Sirens?

[JDM_GUY]

could it be pinging?

[Nasrallah]

Any recommendations for a good Honda mech?

much appreciated

[VexXx Dogg]

a rumble at 140km/h?
Does the engine lose power at this point??

if not - i will think:

wheelbearing needs checking
a slight tyre deformity perhaps due to bad shocks or uneven wear

[New Breed]

try a full tank of premium and rule out d pinging thing.