top speed question, not how fast can i go

97 Stang · 09-18-2002, 08:57 PM

A few days ago I went for a top speed run, just to see if the heads pulled harder with speed up top. They definitely did. But, when I hit 130mph I was at redline in 4th gear. Now I've heard a lot of people talking about hitting 140+ a lot. To get that fast do you keep it in 4th and hold it in the redline or do you shift to 5th and wait forever. Cause when I shifted to 5th I hardly picked up any speed.

09-18-2002, 10:21 PM

You gotta shift man, because once you're in the red your done, otherwise you might damage the engine, or you'll bump the rev limiter which I I've heard is about 200 rpm's into the red.

97 Stang · 09-19-2002, 09:26 AM

I forgot about the rev limiter, guess you do have to shift then.

Badass_yellowGT · 09-20-2002, 10:48 PM

you need to find your engines sweet spot if your over it your actually losing power get it dyno`d and that should tell you when to shift and how do those heads feel can you realy feel it in the a** when you take off i `want to do the heads thing but it may interfear later with my supercharger plans

The Deuce · 09-21-2002, 12:27 AM

Quote:

Originally posted by 97 Stang
A few days ago I went for a top speed run, just to see if the heads pulled harder with speed up top. They definitely did. But, when I hit 130mph I was at redline in 4th gear. Now I've heard a lot of people talking about hitting 140+ a lot. To get that fast do you keep it in 4th and hold it in the redline or do you shift to 5th and wait forever. Cause when I shifted to 5th I hardly picked up any speed.

It's all about your gear ratio out back. With my mighty 2.73's I'd go a lot faster in 4th than the guys with 3.73's.

Titan · 09-21-2002, 01:10 AM

ya...but I get there faster

97 Stang · 09-21-2002, 01:20 PM

What's the top speed with the 3.73's? Do the gears make 5th useful or is still only for overdrive?

97ScottieGT · 09-22-2002, 11:55 AM

The fastest I have ever hade the B***S to drive my car on the road was 140mph but on the dyno running 3.73s out back I got a speed of 172mph @6000rpm.
I stopped after that cause the tires where smoking a little & I didn't think I would have gotten any more from her.

09-18-2002, 08:57 PM	#1
97 Stang Registered Member Join Date: Jun 2002 Location: Albany, GA Posts: 52	top speed question, not how fast can i go A few days ago I went for a top speed run, just to see if the heads pulled harder with speed up top. They definitely did. But, when I hit 130mph I was at redline in 4th gear. Now I've heard a lot of people talking about hitting 140+ a lot. To get that fast do you keep it in 4th and hold it in the redline or do you shift to 5th and wait forever. Cause when I shifted to 5th I hardly picked up any speed. __________________ 1997 Mustang GT 2001 GT heads MAC cat-back BBK H-pipe 4.10 gears

09-18-2002, 10:21 PM	#2
apenn Guest Posts: n/a	Your Done at Redline You gotta shift man, because once you're in the red your done, otherwise you might damage the engine, or you'll bump the rev limiter which I I've heard is about 200 rpm's into the red.

09-19-2002, 09:26 AM	#3
97 Stang Registered Member Join Date: Jun 2002 Location: Albany, GA Posts: 52	I forgot about the rev limiter, guess you do have to shift then. __________________ 1997 Mustang GT 2001 GT heads MAC cat-back BBK H-pipe 4.10 gears

09-20-2002, 10:48 PM	#4
Badass_yellowGT Registered Member Join Date: Jun 2002 Location: Western,MA Posts: 254	you need to find your engines sweet spot if your over it your actually losing power get it dyno`d and that should tell you when to shift and how do those heads feel can you realy feel it in the a when you take off i `want to do the heads thing but it may interfear later with my supercharger plans __________________ Rice Haters Club Member #55** For My car Specs Click the Home page link http://www.badassyellowgt.50g.com/

09-21-2002, 01:10 AM	#6
Titan Registered Member Join Date: Jul 2002 Location: Atlanta Posts: 296	ya...but I get there faster __________________ Current Sophomore -- Mechanical Engineering Black on Black 98' GT 5-Speed Mods = Stuff

09-21-2002, 01:20 PM	#7
97 Stang Registered Member Join Date: Jun 2002 Location: Albany, GA Posts: 52	What's the top speed with the 3.73's? Do the gears make 5th useful or is still only for overdrive? __________________ 1997 Mustang GT 2001 GT heads MAC cat-back BBK H-pipe 4.10 gears

09-22-2002, 11:55 AM	#8
97ScottieGT Registered Member Join Date: Oct 2000 Location: Norfolk VA USA Posts: 46	172mph baby. The fastest I have ever hade the B***S to drive my car on the road was 140mph but on the dyno running 3.73s out back I got a speed of 172mph @6000rpm. I stopped after that cause the tires where smoking a little & I didn't think I would have gotten any more from her. __________________ Keep It Fast.... 97 GT with Complete 2000 motor, Mass Air Meter, Flowmaster CAT Back, BBK Off Road H, Headers, Aluminum drive shaft, 160 therm, 3.73 gears, Steeda Underdrive Pulleys, MAC Lowering springs 2", 99 Cobra wheels, Saleen S351 wing, Cervinis ram air hood with ram air, White face gauges, Bullitt shifter knob, Aluminum radiator, 10mm Spark plug wires, K&N, Mobil One, B&M Ripper shifter, Steeda timing adjuster, Brushed Aluminum pedals, Rewired fog lights, 275/40/17 out back.

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