Different Car=Different S/C Reaction?

[Motorhead350]

Alright this isn't about what it better... this is about how something functions. Now I'm not naming companies, but I have been reading magizines about the new Mustang GT having the same engine size as us however, it is 3 valve. Now why is it that when we put a blower on we can go from 15.5 to 12.9 just like that and a Mustang only goes from 13.6 to 13.0? I even see adds that say it gained 115hp or so, but why only .6 seconds are shaved off? Seems like we can get .6 seconds off with gears and a tune or lose more time possibly. What is so different about these Mustang engines from ours that shows a minimal reaction to a Supercharger?

[supa_carrot]

Good question, I'm kind of interested in the answer to this as well. I'm also curious as to why Mustangs that make about the same power to the wheels as us can absolutley roast their tires (if they are about the same tire size or larger) while we struggle to.

[rvaldez1]

Alright this isn't about what it better... this is about how something functions. Now I'm not naming companies, but I have been reading magizines about the new Mustang GT having the same engine size as us however, it is 3 valve. Now why is it that when we put a blower on we can go from 15.5 to 12.9 just like that and a Mustang only goes from 13.6 to 13.0? I even see adds that say it gained 115hp or so, but why only .6 seconds are shaved off? Seems like we can get .6 seconds off with gears and a tune or lose more time possibly. What is so different about these Mustang engines from ours that shows a minimal reaction to a Supercharger?
The mustang is already tuned up slightly, as apposed to the marauders being sorely detuned.
The marauder respondes well to performance upgrages, and so do other cars, but once you get into the 12 second range it is very hard to get lower times wih a big power upgrade by numbers alone, it has to be a percentage of HP TQ.


Good question, I'm kind of interested in the answer to this as well. I'm also curious as to why Mustangs that make about the same power to the wheels as us can absolutley roast their tires (if they are about the same tire size or larger) while we struggle to.

I would say weight, would be more than half of that. Then comes in the peak hp tq numbers, the marauder 4v builds peak numbers high in the powerband, the mustang, especially 2v does it much sooner.

[RR|Suki]

law of diminishing returns, at a certain point the pay back is less...

[Mad4Macs]

It's not just the 2v's that have more useable torque, the 3v use variable valve timing to broaden the curve. I haven't seen charts on the 3v 'Stangs yet, but even though they've got roughly the same numbers, having owned both cars, the Mustang sure feels like its torque is available way further down the RPM range.
I'd be curious to see what effect putting smaller wheels on the Marauder would have, too. Even the Mustang GT only runs 17's. Smaller wheels are easier to spin :D
On the flipside, I'd imagine that the Marauder 4v heads respond better to S/C, because they love to breathe!

PS
Who's only getting their Mustangs into the low 13's? Lidio's beast is running in the 10's, and he's got these monstrous 20' rims with street tires!

[Motorhead350]

I'm just saying with the blower and nothing else. Our 15.5 to 12.9 and the Stangs 13.6 to 13.0. I wanna know what that is.

[Mad4Macs]

And I'm just saying "Who's only getting their Mustangs into the low 13's? Lidio's beast is running in the 10's, and he's got these monstrous 20' rims with street tires".

Lidio's Vortech is running an automatic with the stock torque converter (stock gears, too, I think). Yep, he's got methanol, but even without that, he'd be waaaay faster than the 13's. Heck, if he'd lose the 20's, he could probably pick up a 10th, too!

[Marauderjack]

OEM setup is very conservative.....Longevity and warranty issues!!??:rolleyes:

Steve Babcock said they toyed with SC'ing the Marauder and the prototype made 375 CSHP or so but it never saw production......We all know any blower offered to us will make 400 RWHP or more right out of the box!!:beer:

Heck, look at the Lightnings......I think a good tune will pull another 75-100 HP out of them??:bows:

I suspect a smaller pulley and good aftermarket tune would put the GT deep into the 12's??:confused:

My $.02.......:D

Marauderjack:burnout:

[Drock96Marquis]

Good question, I'm kind of interested in the answer to this as well. I'm also curious as to why Mustangs that make about the same power to the wheels as us can absolutley roast their tires (if they are about the same tire size or larger) while we struggle to.The 3v is the best of both worlds, better low-end torque like a 2v (though, still no pushrod :D) and great top-end power like a 4v

It is completely different than your engine, so you can't really base a comparsion of it.


Now why is it that when we put a blower on we can go from 15.5 to 12.9 just like that and a Mustang only goes from 13.6 to 13.0?
All blowers are not created equal ;) The Mustang kit you are reffering to may be running lower 'boost' than the Trilogy or other offerings. A lot of it is also in the tuning.

The Marauder uses the 4.6l 4v, which is somewhat gutless in N/A trim low in the power band (IMO, no offense to any of you of course)
Add a root or screw blower, and you now have incredible low-end power with the great top end.

[94_302]

Forget about the time improvement what was the trap speed, 60' times e.t.c.

[Zack]

A mustang with a blower only and good tires will be high 11's easy.

[Mad4Macs]

A mustang with a blower only and good tires will be high 11's easy.
Now that's what I'm saying... if you're only into the 13's, you're doing something wrong!
:burnout:

[Motorhead350]

Then why does it say 13.6 to 13.0 in the adds? I agree, though it must be pushing only 6psi or something, but who would spend $6,000 for .6 seconds?

[Mad4Macs]

Then why does it say 13.6 to 13.0 in the adds? I agree, though it must be pushing only 6psi or something, but who would spend $6,000 for .6 seconds?

You're reading the wrong ads :lol:

http://www.whipplesuperchargers.com/product.asp?ProdID=1208

[Bull]

I imagine traction plays a big part. Having a heavier car helps plant the tires better. Power curves play another part, the 3v and 4v engines develop power very differently.

[ctrcbob]

Don't know if Motorhead is talking about the Mustang-GT or the Shelby-GT.
If he is talking about the Shelby-GT, to my understanding, the Shelby-GT has 20hp more than the Mustang-GT. Same engine but a "Cold Air Intake".
It also has a "Phony Hood Scoop" that is rivited on. (Looks tacky). Also has Hood Pins that the Mustang-GT (or Shelby-GT500) does not have. The 6speed manual I saw has a tacky shift knob that looks out of place in this car. A few suspension tweeks. A tenth of a second faster in the quarter than the Mustang-GT. All for about $8400 (MSRP) above the MSRP of the Mustang-GT, plus dealers around here are adding an additional $5000 "bump up sticker" on top of that.

If I were interested in a Mustang (or Shelby) (which I'm not), I would just get the Mustang-GT, at a discount, and take that discounted amount, plus the $8400 + $5000 and do my own modifications. You can do a lot with that kind of money.

[Mad4Macs]

Did you see the pic I posted here, the Shelby with the dealer mark-up tag? Our local dealership boldly advertises a $15,000 (not a typo, fifteen grand) markup.
Sheesh!

http://www.mercurymarauder.net/forums/showthread.php?t=33718

[94_302]

Then why does it say 13.6 to 13.0 in the adds? I agree, though it must be pushing only 6psi or something, but who would spend $6,000 for .6 seconds?

Again what was the trap speed forget about times for a moment. I could take a stock 03 cobra and run mid to high 13's, and what would that tell you? I should have saved money and bought an 01 cobra? No it would say that I am probably a crappy driver. Why do some people run slower times after they install gears? Does that mean gears are not worth it because they make you slow? No. Look at the trap speed for the real gain. It's not rocket science, I thought most people knew this.

[Skilz10179]

Again what was the trap speed forget about times for a moment. I could take a stock 03 cobra and run mid to high 13's, and what would that tell you? I should have saved money and bought an 01 cobra? No it would say that I am probably a crappy driver. Why do some people run slower times after they install gears? Does that mean gears are not worth it because they make you slow? No. Look at the trap speed for the real gain. It's not rocket science, I thought most people knew this.

X2, I concur.

[MarauderMarc]

Okay, that information is only right for maybe that specific application.

The 05+ Mustangs have the 3v 4.6. This car is a 13 second car out of the box. With a few bolt ons, a good tune and drag radials it is a 12 second car. With a blower its an 11 second car. With a blower alone its a 12 second car. Procharger has a 2005 Stang in the 11s. I believe its stock except the blower, tune, and drag radials.

Now the 99-04 Stangs are a bit different. They have the 2v, a 14 second car out of the box. 13s are easy with a few bolt ons. Supercharged they are 13.0 or lower.....in most case lower.

My 03 Marauder had the FIT Kit (Procharger) and it was a beast! I had alot of other things as well, but it did low 12s. After the Marauder was totaled, I took the supercharger off. I bought a 2001 GT Mustang and threw the blower on it along with some other goodies and now did a best time of 12.7. That was with the stock suspension.

[MarauderMarc]

check this out......read his times and then check out post #13 where he tells his mods.
http://www.southfloridastangs.net/sfsforum/showthread.php?t=15943

[Motorhead350]

Again what was the trap speed forget about times for a moment. I could take a stock 03 cobra and run mid to high 13's, and what would that tell you? I should have saved money and bought an 01 cobra? No it would say that I am probably a crappy driver. Why do some people run slower times after they install gears? Does that mean gears are not worth it because they make you slow? No. Look at the trap speed for the real gain. It's not rocket science, I thought most people knew this.

I'm still learning. I'll find the add tonight and tell you what it says. It's not for a Shelby I know that.

[RF Overlord]

...the Shelby-GT has 20hp more than the Mustang-GT. Same engine but a "Cold Air Intake"...
It also has a "Phony Hood Scoop" that is rivited on. (Looks tacky). A few suspension tweeks. A tenth of a second faster in the quarter than the Mustang-GT. All for about $8400 above the MSRP of the Mustang-GT That info, plus the fact the Carroll Shelby is a shill for Z-MAX, has made me lose a lot of respect for the man...

A freakin' RIVETED-ON phony hood scoop on a Shelby?... :down: :shake:

[Drock96Marquis]

You're reading the wrong ads :lol:

http://www.whipplesuperchargers.com/product.asp?ProdID=1208


+1!

Hell, CVN/CVU member Speedycop ran a 13.28 on his BONE STOCK '05 GT Manual!!

[Mad4Macs]

I was just re-reading that link from Whipple... 4.4 seconds 0-60! I've never owned something that fast (probably never will, either), but can you imagine the look on some poor $100,000 exotic owners face when he gets lit up by a $25,000 Ford?
Sounds like fun! :D