RPM limits of a stock 4.6.

Smoothgrandmama · January 5th, 2008, 12:47 PM

Screw it get a honda engine.

StangAddiction · January 5th, 2008, 12:50 PM

Originally Posted by Smoothgrandmama

Screw it get a honda engine.

Goodbye torque & Traction...Hello wheelspin...

TheBusher · January 5th, 2008, 12:59 PM

Originally Posted by acmillr

Actually, the stock intake makes power to about 6700 and starts to fall off.

+1 You're more limited by the stock cams and heads then the intake manifold.

Smoothgrandmama · January 5th, 2008, 06:07 PM

I personally Would Rather A beast down low. Than a Screaming High revver.

acmillr · January 5th, 2008, 06:49 PM

Originally Posted by Smoothgrandmama

I personally Would Rather A beast down low. Than a Screaming High revver.

Exactly, that's why people buy and build what they want.

StangAddiction · January 5th, 2008, 07:44 PM

Originally Posted by Smoothgrandmama

I personally Would Rather A beast down low. Than a Screaming High revver.

+1...Gotta love tOrK

acmillr · January 5th, 2008, 08:07 PM

Originally Posted by StangAddiction

+1...Gotta love tOrK

Or liquified insta-torque.................

ModMustang97GT · January 6th, 2008, 12:34 AM

So it is not worth it to get an after market intake. The stock PI intake sounds like it will be plenty with a new plenum and TB. But wouldn't a longer runner intake like the trickflow piece would be better, anyone know. MM&FF did an article on one with a supercharged engine, but it didn't say anything about an N/A setup.

StangAddiction · January 6th, 2008, 08:02 PM

Originally Posted by ModMustang97GT

So it is not worth it to get an after market intake. The stock PI intake sounds like it will be plenty with a new plenum and TB. But wouldn't a longer runner intake like the trickflow piece would be better, anyone know. MM&FF did an article on one with a supercharged engine, but it didn't say anything about an N/A setup.

On a stock engine the stock intake is fine...and most Street N/A applications..For boost, aftermarket intakes do help although you should do reasrch before buying an intake. Some are good while others...well...aren't so good...

banned · January 7th, 2008, 01:39 AM

you need heads and cams to make it meaningful, but at the very least new springs to prevent breaking something... and then there is the rods which are crappy

ModMustang97GT · January 7th, 2008, 04:12 PM

I have a set of PI heads and Cams that I plan to Port and replace. The Heads will flow well after porting and I plan on getting a custom Cam. What I want to know is, do I need new rods and Pistons to survive a 7000RPM Redline. I personally like torque but if I have to sacrifice 10 lb. Ft of torque at 3000 rpm for 1000 more rpm and 50 more hp. That is worth it. The intake I was looking at is good all over the spectrum, but, it really blows the stock stuff out of the water past 6000 RPM, so I just wanted to know, what I need to do to make my engine survive that. Wheather its new rods and pistons or just taking off the rev limiter.

acmillr · January 7th, 2008, 04:46 PM

You will need rods, pistons, great bearings, quality valves and springs, and a cam without excessive lift to keep it together IMO.

January 5th, 2008, 12:47 PM	#21
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,161 iTrader: 6 reviews	Screw it get a honda engine. __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

January 5th, 2008, 06:07 PM	#24
Smoothgrandmama Assistant to the Manager 12 GT 8.46@88 1/8 Join Date: Apr 2007 Location: Willis,Texas Posts: 7,161 iTrader: 6 reviews	I personally Would Rather A beast down low. Than a Screaming High revver. __________________ Join The MM Facebook: Modded Mustangs Facebook Vote For Modded Mustangs Ride of the Month Eskimo Brothers To Smooth: Safi, Blitz34, Graystang01, WillTheThrill, Bwal, 101Fng

January 7th, 2008, 04:46 PM	#32
acmillr MM's Mad Scientist Slow Fella Join Date: Jul 2006 Location: Tupelo, MS Posts: 5,111 iTrader: 2 reviews	You will need rods, pistons, great bearings, quality valves and springs, and a cam without excessive lift to keep it together IMO. __________________

Threads Similar to: RPM limits of a stock 4.6.
Thread	Thread Starter	Forum	Replies	Last Post
Avatar and Signature size limits increased please?	Steam	Feedback Forum	9	November 10th, 2007 02:49 AM
tranny hp limits question	Plays With Squirrels	96-98	3	August 4th, 2007 04:04 AM
v6 motor limits	popmyclutch	V6 Mustangs	6	July 7th, 2007 12:41 AM
block/bottem end limits?	Orangester	V6 Mustangs	2	April 2nd, 2007 12:48 AM
Limits of the 4.6L 24 valve motor	OcOnnor220	99-04	11	December 31st, 2006 02:06 PM

January 6th, 2008, 12:34 AM	#28
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	So it is not worth it to get an after market intake. The stock PI intake sounds like it will be plenty with a new plenum and TB. But wouldn't a longer runner intake like the trickflow piece would be better, anyone know. MM&FF did an article on one with a supercharged engine, but it didn't say anything about an N/A setup.

January 7th, 2008, 01:39 AM	#30
banned Regular Join Date: May 2007 Posts: 461 iTrader: 0 reviews	you need heads and cams to make it meaningful, but at the very least new springs to prevent breaking something... and then there is the rods which are crappy

January 7th, 2008, 04:12 PM	#31
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	I have a set of PI heads and Cams that I plan to Port and replace. The Heads will flow well after porting and I plan on getting a custom Cam. What I want to know is, do I need new rods and Pistons to survive a 7000RPM Redline. I personally like torque but if I have to sacrifice 10 lb. Ft of torque at 3000 rpm for 1000 more rpm and 50 more hp. That is worth it. The intake I was looking at is good all over the spectrum, but, it really blows the stock stuff out of the water past 6000 RPM, so I just wanted to know, what I need to do to make my engine survive that. Wheather its new rods and pistons or just taking off the rev limiter.

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

All times are GMT -4. The time now is 06:01 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.