Redlining
Thread Starter
Junior Member
Joined: Oct 2002
Posts: 29
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From: LA, CA
Redlining
I have a 97 accord Lx non-vtec. From time to time I have red lined and I was wondering how bad and what parts are involved in it. I mean is it that there is no oil at that rpm or that the internals on the engine are too week or can’t handle it. I know people change the valve and springs and that allows then to go farther on the rmp but is it only valve and springs or do u also need to do the piston and piston rings?
Any comments would be appreciated,
Edy
Any comments would be appreciated,
Edy
cx power!
Joined: Jun 2002
Posts: 2,435
Likes: 0
From: berkeley, ca --> la, ca representin' tha 510&626
nothing wrong with redlining if you keep your motor well maintained. dont rev your car too high until its warmed up too. drove my accord everyday, hitting reline quite frequently, and the motor is fine. 120kmi, and still as powerful as new. the auto tranny is a whole other story tho...
Rice Rocket
Joined: Mar 2003
Posts: 185
Likes: 0
From: Miami, FL
The reason an engines red line is set at a certian value is because that is the limit the engine will safely and reliably operate.
When you over rev an engine the engine can spin itself, run away, etc. there are many different terms but basicly it's when the interia of the moving parts acutally carries the engine past it's own power.
The reason the springs are changed first is because they are the first to fail. At high RPM they can drag and at that speed the pistons can litterly hit the valves. So buy putting higher tension springs the valves will seat faster, getting them out of the way so the engine can rev higher.
There is always a limit but I have seen a completely built engine built by JUN that reved to 13K. Pretty Impressive.
When you over rev an engine the engine can spin itself, run away, etc. there are many different terms but basicly it's when the interia of the moving parts acutally carries the engine past it's own power.
The reason the springs are changed first is because they are the first to fail. At high RPM they can drag and at that speed the pistons can litterly hit the valves. So buy putting higher tension springs the valves will seat faster, getting them out of the way so the engine can rev higher.
There is always a limit but I have seen a completely built engine built by JUN that reved to 13K. Pretty Impressive.
Senior Member
Joined: Mar 2000
Posts: 37,274
Likes: 0
From: Southern NH
Originally posted by BustedLX
The reason an engines red line is set at a certian value is because that is the limit the engine will safely and reliably operate.
When you over rev an engine the engine can spin itself, run away, etc. there are many different terms but basicly it's when the interia of the moving parts acutally carries the engine past it's own power.
The reason the springs are changed first is because they are the first to fail. At high RPM they can drag and at that speed the pistons can litterly hit the valves. So buy putting higher tension springs the valves will seat faster, getting them out of the way so the engine can rev higher.
There is always a limit but I have seen a completely built engine built by JUN that reved to 13K. Pretty Impressive.
The reason an engines red line is set at a certian value is because that is the limit the engine will safely and reliably operate.
When you over rev an engine the engine can spin itself, run away, etc. there are many different terms but basicly it's when the interia of the moving parts acutally carries the engine past it's own power.
The reason the springs are changed first is because they are the first to fail. At high RPM they can drag and at that speed the pistons can litterly hit the valves. So buy putting higher tension springs the valves will seat faster, getting them out of the way so the engine can rev higher.
There is always a limit but I have seen a completely built engine built by JUN that reved to 13K. Pretty Impressive.