1996 V6 Mustang - What is the RPM Limit for a Stock Bottom End? - Ford Mustang Forum
 
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post #1 of 5 (permalink) Old 02-21-2011 Thread Starter
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1996 V6 Mustang - What is the RPM Limit for a Stock Bottom End?

I just had my son's 96 Mustang with a 3.8L rebuild and the car pulls strong up to the redline (5000) and it seems like it wants to keep going past redline, but I haven't taken it beyond that yet.

I wanted to know what the RPM limit is for a stock bottom end.

FYI - the cam and valve spring power range is 1500 - 5800 RPM.


I need to know how safely I can spin the engine (what RPM).


Last edited by Snackmaster; 02-22-2011 at 09:05 AM. Reason: merged back to back posts
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post #2 of 5 (permalink) Old 02-21-2011
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The rev limit is at 6000RPMs and you can turn it up to the point.
However, you are not making any more power past 5000 or so RPMs. So turning any more than that is pointless.

In this video I am pushing the car deep into the red and shifting at almost 6k.
YouTube - 2001 Mustang 3.8L w/Cherry Bomb Extremes #2

post #3 of 5 (permalink) Old 02-21-2011
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are you saying you have an upgraded cam from stock? and wanna know how far you can push the rotating assembly before it self destructs?

2003 3.8L V6 4R70W
Windstar Upper Intake with cool-air intake, MAC LT headers, BBK O/R H-pipe, and flow 40s, SCT tuner, FRPP Alum. D/S, 3.73 gears, Auburn HP limited slip, and Team Z LCAs, Eibach sway bars.
Best 1/4 time: 15.036 @90.92mph, 2.148 60'
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post #4 of 5 (permalink) Old 02-22-2011
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Stock 94-98's only make power to 5k primarily to do with small, single-port heads. 99's improved basically on the split-port design which involved more intake/exhaust volume......

Do not take a single-port past 5k rpm's. It will do you no good. You really need ported heads and intakes like Tom Jr to make real power.....

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post #5 of 5 (permalink) Old 02-22-2011 Thread Starter
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Quote:
Originally Posted by Markstang690 View Post
are you saying you have an upgraded cam from stock? and wanna know how far you can push the rotating assembly before it self destructs?
Yes that is exactly what I am wanting to know. It is definitely making power up to redline and I need to know if it will stay together if pushed harder.

Thanks in advance for you input.


Quote:
Originally Posted by shinerstang View Post
Stock 94-98's only make power to 5k primarily to do with small, single-port heads. 99's improved basically on the split-port design which involved more intake/exhaust volume......

Do not take a single-port past 5k rpm's. It will do you no good. You really need ported heads and intakes like Tom Jr to make real power.....

Maybe I should have stated some of the other modifications. There has been head and intake porting, 19 lb injectors, 56 MM throttle body and 3.5" cold air induction, as well as true dual exhaust and H-pipe. Dyno tune coming this Friday and 3.73 gears next month.

So I really just need to know what RPM the bottom end will safely handle.

Last edited by Snackmaster; 02-22-2011 at 01:42 PM. Reason: merged back to back posts
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