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SSHEL-B

Off topic......I have same exact set-up as you except pullies. What times you running and were the pullies worth the time/money?

Tires?


I did see a Mach1 running in Baytown,TX a month ago. 13.20s with drag radials.....I ran against him. He popped hood and bone stock except filter and DRs.
 
svtsnake01 said:
I am curious as to why all the Mach 1s I see running at the track are taping the scoop up. Does the scoop slow the car down? Too much drag maybe?

Also I believe the Mach 1s have different cams, making them more torquey than a 01 Cobra
The Mach I's (along with the '03 Cobra for that matter) both have the "truck" heads and cams, mated with 3.55 rear end gears.

Basically Ford scarificied some of the upper rpm's (they have a lower red-line) for better low-end torque.
 
Discussion starter · #25 ·
KeithCobraUH said:
SSHEL-B

Off topic......I have same exact set-up as you except pullies. What times you running and were the pullies worth the time/money?

Tires?


I did see a Mach1 running in Baytown,TX a month ago. 13.20s with drag radials.....I ran against him. He popped hood and bone stock except filter and DRs.
I run 13.20 On street Tires, 12.80 on slicks, I think the pullies helped, It seemed like the car wound out quicker.
 
just a quick question.... weren't the 96-98 4V engines overrated? i believe the were only dyno-ing at 240 horsepower which puts them at around 285 at the crank, considerably less than their 305 rating (which should be around a 260 dyno).

i would assume the mach 1's are actually producing 305, maybe more, making them considerably more powerful than a 96-98 cobra.
 
ElGranBicho said:
just a quick question.... weren't the 96-98 4V engines overrated? i believe the were only dyno-ing at 240 horsepower which puts them at around 285 at the crank, considerably less than their 305 rating (which should be around a 260 dyno).

i would assume the mach 1's are actually producing 305, maybe more, making them considerably more powerful than a 96-98 cobra.
Nope, most '96 to '98 Cobras put down 250-260 at the rear wheels on a dynojet bone stock to the paper filter. That equates to roughly 15% drivetrain loss which is pretty standard for an engine of this type.

Panoz Roadsters using the same engine put down 260-270 bone stock due to their less restrictive intake and exhaust.

On top of that, with shorty headers and pulleys together you usually get another 15 RWHP or so.

I think Bower got it right: the new Mach 1 is a bit lighter, has a bit more low end torque, and has a bit more gear, so it's easier to launch from a standing start and a bit quicker off the line.
 
Most of the bone stock dyno numbers of new Machs I have seen were around 275 RW. Dividing that by .85, using the popular 15% drivetain loss number , gives 324 flywheel HP.

I believe my 98 would dyno arounf 255-260 RW bone stock, which using same math gives about 300-305 flywheel.

That seems to be the realistic HP difference between the cars, though some stock Mach's have dyno'd a little higher than 275.

I would say the 3.55's are a big part of why they feel stronger than previous 3.27 cars, in bone stock form. edit addition...(and the 20 extra FT LBS TQ at 4200 VS 4800 on 98)
 
Well then, I'm looking forward to knocking the grin off a Mach 1 owner this spring (better remove the "supercharged" emblems first). Did it to a Z06 and Viper. Although I suspect the Viper guy didn't know what he was doing.
 
Ralph Greene said:
Most of the bone stock dyno numbers of new Machs I have seen were around 275 RW. Dividing that by .85, using the popular 15% drivetain loss number , gives 324 flywheel HP.

I believe my 98 would dyno arounf 255-260 RW bone stock, which using same math gives about 300-305 flywheel.

That seems to be the realistic HP difference between the cars, though some stock Mach's have dyno'd a little higher than 275.

I would say the 3.55's are a big part of why they feel stronger than previous 3.27 cars, in bone stock form. edit addition...(and the 20 extra FT LBS TQ at 4200 VS 4800 on 98)
Well put. Doesn't the mach 1 have a lower redline than the Cobra? If it's a 6000 RPM redline then the gear ratio / redline differences are huge and probably contribute to most of the SOTP differences.

The mach 1 has a lower redline and bigger ratio, so its shift points in each gear will be at significantly lower speeds. If we selected the differential ratio of the '98 Cobra so that the shift points were at the same speed as the Mach 1, then the Cobra would have a 4.1 ratio.

In other words, if you take a '98 Cobra with a 4.1 ratio versus a Mach 1 with a 3.55 ratio, they will redline 1st, 2nd, etc. gear at roughly the same speeds. And they both would be much closer in SOTP feel, since the 16% more gear in the Cobra will more than compensate for having about 10% less torque at the crankshaft, and when you take in the lighter weight of the Mach 1 you get something close to a dead heat.
 
Michael...RE the red line...I've heard that but....the red line on my stock tach starts at 6800, believe that's the same as my 98.

One may need to shift a little sooner for max performance, say around 6200-6500, VS whatever higher shift numbers older 4V cars go by. I shifted my blown SHM engine 98 at 7200, while others shifted much higher. But blown cars different deal.

Going by SOTP feeling, I'm guessing I would shift it around 6500 on a drag strip. I won't find out on this car, because it won't be on the dyno. It still has the paper air filter which I prefer for my use.

My only mod so far is a fancy polished alumunum plug that goes were the Heimholz (SP)resonator plugged into the intake pipe. It's just a fancy plug some enterprising person thought up that looks nice and has "Mach 1" etched on it. Removing the ugly resonator (on there to quieten intake air nose they say) has no effect on power. LOL
 
Why would you want a Mach1? Because; 1) they will be more rare than other models, 2) stock, they are already a beast compared with any other NA 32v. Small mods get huge gains. Take the $ diff and add a blower...now whose faster...not the '03 Cobra.

Barrett
'01 Cobra
 
i have a o3 mach 1

i have an 03 mach 1 azzure blue i run in the nmra unfortunately they make us tape off our shaker hood for factory stock. does it hurt it? im sure it does, pauls high performance says it does.
i ran a 12.49 1/4 mile at 109 mph in reynolds last weekend with a 4.56 gear bassani x-pipe, magna flow exhaust, underdrive pullys, spacer, 28 in tall bf goddrich tire, tokiko shocks, struts springs, upper and lower control arms, and a chip tuned by pauls high performance. dyno was 305 hp at rear wheel and 319 torque at rear wheel before we left. im happy with the car and knocking on the 11 second door.oh i had weld wheels on too.my partners black mach ran 12.27 1/4 at 111 mph about the same mods.

not to shabbey i would say.

looking at 11's real soon
 
wbpo said:
Why would you want a Mach1? Because; 1) they will be more rare than other models, 2) stock, they are already a beast compared with any other NA 32v. Small mods get huge gains. Take the $ diff and add a blower...now whose faster...not the '03 Cobra.

Barrett
'01 Cobra
Contrary to what some may think, It won't be so easy to strap a blower on this engine...........You have 10.1:1 compression which is not blower friendly, as opposed to the 9.85:1 compression the older 32V engines had...............So right off the bat, you're going to have to do some piston work.....While you're under there, might as well strengthen the rods, and you might want to do the rest of the bottom end...........that, plus the cost of your typical Vortech or Paxton kit, and you're talking about MORE money, less reliability, and NO WARRANTY, as compared to a stock '03 Cobra.

I don't think too many of us are buying Mach 1's to run 11's or 10's......................Cobra's and Lightnings take care of that. I bought this car because I wanted something different than your average Stang, I wanted to bang my own gears, and have something that is still fast enough to lay down a beating at a stoplight. Plus, I've never owned a Mustang before, and the sound of this car is intoxicating...........wait till I get my Magnaflows!! :D

I loved my Lightning, and the power that truck had is far beyond anything I could ever achieve on the Mach I, but the attention I get in this car ANYWHERE I go is unmatched.

JC
 
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