Rmp
Thread Starter
Intermediate
Joined: Jun 2018
Posts: 25
Likes: 1
Rmp
hey guys,
I have a 75 stingray and I feel my ramps run high when I’m on highway. If I’m going 90mph, should my rpms run around 4,500 rpms? I’ve adjusted my rpm screw on the driver side of my carb but I didn’t adjust the one on the right side of the carburetor.
On another note, I’ve got a massive screeching coming out of my speakers when my rpms are running. I have a suppressor connected to my alternator. So I believe, it’s something to do with my wiring. I’ll probably take it somewhere that can deal with that.
I have a 75 stingray and I feel my ramps run high when I’m on highway. If I’m going 90mph, should my rpms run around 4,500 rpms? I’ve adjusted my rpm screw on the driver side of my carb but I didn’t adjust the one on the right side of the carburetor.
On another note, I’ve got a massive screeching coming out of my speakers when my rpms are running. I have a suppressor connected to my alternator. So I believe, it’s something to do with my wiring. I’ll probably take it somewhere that can deal with that.
Tech Contributor
Joined: Aug 1999
Posts: 14,356
Likes: 6,332
From: At my Bar drinking and wrenching in Lafayette Colorado
If you have a 3.90:1 rear end and 27-inch tires, your engine will turn 4500 rpm at 90 mph.
Lars
Last edited by lars; Dec 17, 2018 at 01:56 PM.
