Maybe you guys will know cause I have no clue and the dude I bought the car from doesn't know either. I got a 350 carb engine, it's definately not stock but the mods I put on wouldnt affect the RPM range much. So my question is, what is the redline for a 350?

 

Noone can tell you for sure but 5500rpm is usually pretty safe.

 

Yeah I know that every engines diff thats why i wanted an approx. Thx for your reply.

 

That guy with an 88 or 89 formula 350 who made it on Hot Rod cover awhile back (running 10s on stock shortblock) was turning all the way to 6700 rpms coming across the line I believe.

 

There were some smogger 350's in the 70's with redlines at 4500rpm.

 

Alot of times you can feel for the redline. Usually once the power drops off you're about at redline. Seldom does a 350 still make power up at it's redline.

If you have the valve components and it's in good shape 6500 isn't gonna hurt anything unless it's everyday and or for a sustained period of time.

If it's stock, leave her around 5-5500

IMHO

 

If it's a stock TPI not really much point turning it past 5k anyways.

I plan on being able to rev my Carb 383 up to 7500 rpms... course I'm not gonna shift out there.

 

I've been feeling for the redline for a long time, but the lower gears go far less rpms than 3rd or 4th, ive went up to 5k 3rd and i still feel power, didnt want to go past that so that's why i posted.

 

Depends on mods and engine condition. Lets say a typical high performance build you might find on the street, high as in the owner is hoped up on wisfull thinking pills. That type of engine with a RV cam and stock componets usually isnt good for more the 5k a tad over. A build like I do for my crap and most people around here do is good for around 6k. My old BB 402 made power farily high, I had a 7k pill in that hit it real quick and easy once had an 8k pill and shifted around 7400/7500 with no problems.

 

I got a fair amount of mods, and the engine only has 3k miles on it. So i wouldnt call it a ***** engine, but it's still nowhere near what i want it to be. But everyone always wants more .

 

As long as you remember that its not what shinny parts are bolted on the outside but whats inside that counts........... Unles were talking a shinny roots blower.

 

¿Redline?

What's that?

 

I always get my Chrome parts from APC.......

 

I dunno never seen one. I just assume is where the other guys car is when he's falling behind and theres blue smoke comming from it. LOL

 

haha that was ment as a joke right?

 

I don't really understand this "redline" thing.... doesn't make a whole lot of sense to me.... why would anybody be such a moron that they would continue to rev their engine beyond the point at which it makes peak HP anyway, which is always far below the survival limit of any motor remotely close to stock? Go take your car to the dyno, and find the peak power RPM; the car will go the fastest if shifted within a couple hundred RPMs of that peak, depending on gearing and such. Holding it in lower gear past that point simply slows the car down. For most cars on this board that will ocur at some RPM below about 5000, which is easily tolerated by a stock or mildly modified short block if kept lubed and cooled adequately.

Interesting that most people who talk about "redline" usually want to argue about some arbitrary marking on the inaccurate stock tach of their stock cars, and then somehow apply that factory trim detail to some property of a motor they build (or more likely, buy). Maybe I'm just more of an idiot than I usually give myself credit for, but I fail to comprehend how that factory appearance option applies to the real world of engine survival.

About 99% of the time a motor will quit making power before it reaches a point at which it's in danger of self-destructing. If it is capable of exceeding its durability llimits before it reaches its peak power RPM, then it's improperly built.

 

First off, yes the APC was a joke. Only retards buy APC.

Anyways RB83L69, I was asking because I got no money TO dyno my car. Obviously if I could I would. Peaking past redline isn't good for your car. It's set for a reason because that's almost the most RPM's the engine can take before soemthing goes wrong. No one wants the rod to break off because oil wasn't pumped fast enough. The motor WILL stop making power after it hits its peak limit, but that's because it can't go any higher. It's not like it'll keep making more and more power until it blows up. Every car and everything has its limits. Reaching that SAFE limit is fine but exceeding it could be disasterous for many parts. Finding where those safe limits are is the key to performance and the survival of the engine.