View Full Version : Mustang info (not a race)


99RebelZ28
01-16-2007, 10:50 PM
Hi,

This post is for the people on this site that have knowledge on Mustang GTs. A guy that lives near me has recently bought a supercharged 99 gt, and from what I've heard from people that have talked to him about the car is that he claims he is running 10 psi? He has a catback exhaust and an intake, as far as I know, and he is claiming over 400rwhp (I think hes talkin out his ass but not sure) . I haven't got a chance to talk to the guy to get all the details on what kind of charger is on it but does the rwhp number sound correct? To me it seems high especially with the minimal amount of boltons and I was told that the bottom end of the 2V motor does not hold up at this level of power. Also how should my car hold up to this car in a drag race? ( I don't have any dyno #s for my car)

Sorry if this post is in the wrong section, but I really didn't know where else to put it.

Irunelevens
01-16-2007, 10:53 PM
Yes, that sounds about right. And yes, properly tuned (pump gas), the 2v 4.6 can support ~425rwhp on boost.

MeentSS02
01-16-2007, 11:21 PM
;)

http://www.modmotortech.com/forums/

MrDavid
01-16-2007, 11:33 PM
Hi,

and he is claiming over 400rwhp

:bs: I don't think so. I had a buddy with a 97 GT (not much diff in the motor from a 99) who had a supercharger pushing 6lbs through it and it only dyno'ed 290 on a dynojet dyno. I highly doubt that 4lbs more would have boosted it over 400. And my buddy also had full bolt'ons.

99RebelZ28
01-16-2007, 11:39 PM
Yeah, well I was thinking the car stock is only pushing like 220-225 hp to the wheels, its hard to believe that he improved his rwhp by almost 100% with a charger and minimal bolt ons

MrDavid
01-16-2007, 11:46 PM
its a REAL longshot, but since I haven't seen it on a dyno I can't be absolutly sure.

00cls1camaross
01-16-2007, 11:50 PM
i like pussy :chug:

Irunelevens
01-17-2007, 12:08 AM
Yeah, well I was thinking the car stock is only pushing like 220-225 hp to the wheels, its hard to believe that he improved his rwhp by almost 100% with a charger and minimal bolt ons
Stock, a 5spd 99-04 GT puts down 230-235rwhp normally. And a '97 GT is quite different than a 99-04. The heads in the later cars (PI- Performance Improved) flow quite a bit better, the cams are worth 10rwhp alone, and the intake manifold is a 20-25rwhp difference. And those differences become greater once you apply boost. So add 50-60rwhp to your friend's '97, and then add 4psi to that.

MrDavid
01-17-2007, 12:14 AM
still doesn't put it ANYWHERE near the 400 mark.

Irunelevens
01-17-2007, 12:19 AM
so 4psi can't add 40-50rwhp?

MrDavid
01-17-2007, 12:20 AM
what gave it the initial 60hp to put it at 350?

lynx853
01-17-2007, 12:22 AM
99 gt at school put down 302hp non-intercooled on 4psi

lynx853
01-17-2007, 12:22 AM
...only had intake too, no exhaust

Irunelevens
01-17-2007, 12:23 AM
Did you read anything I typed? 99-04 GTs have BETTER HEADS, CAMS, AND INTAKE MANIFOLD, WHICH IS WORTH 50-55RWHP ON AN N/A CAR.

MrDavid
01-17-2007, 12:26 AM
yea, i read. now I understand that you are stating that a 99GT has 50more rwhp than a 97 GT. I don't think so. I would love to see some proof of that. Then i'll stand corrected.

MrDavid
01-17-2007, 12:28 AM
enough debating for one night. maybe more tomorrow

Irunelevens
01-17-2007, 12:34 AM
Well as a former owner of a '98 GT, that personally researched/installed PI cams and a PI intake manifold on myself, and almost did the headswap (researched the shit out of that too), and a current owner of an '01 GT, trust me... I know :). And if you do a PI head/cams/intake swap on a non-PI GT, you end up with about 240rwhp, with no other mods. Swapping that stuff on bumps the compression from 9.3:1 to about 10.0:1.

mpe488
01-17-2007, 01:42 AM
I'm sure its possible, I've heard of mid to upper 300s on 8psi. But thats with headers and bigger than stock x pipe. 10psi on stock manifolds with a catback just sounds a little weird to me. Either way, a GT with 10psi will beat you.

Phil8616
01-17-2007, 03:07 AM
Stock, a 5spd 99-04 GT puts down 230-235rwhp normally. And a '97 GT is quite different than a 99-04. The heads in the later cars (PI- Performance Improved) flow quite a bit better, the cams are worth 10rwhp alone, and the intake manifold is a 20-25rwhp difference. And those differences become greater once you apply boost. So add 50-60rwhp to your friend's '97, and then add 4psi to that.

Am I lost here? You say 99-04 GTs make 230-235rwhp which I agree with. This guy has catback and intake and running 10psi...How is he getting 170+rwhp from that to push over 400?

AcE XBOX
01-17-2007, 06:04 AM
Well as a former owner of a '98 GT, that personally researched/installed PI cams and a PI intake manifold on myself, and almost did the headswap (researched the shit out of that too), and a current owner of an '01 GT, trust me... I know :). And if you do a PI head/cams/intake swap on a non-PI GT, you end up with about 240rwhp, with no other mods. Swapping that stuff on bumps the compression from 9.3:1 to about 10.0:1.
Thats the beauty about doing the head swap on pre 99 models. More power!

SilverStang00
01-17-2007, 07:47 AM
It is more than possible for a 2v running that boost to make that power. My best friend had a vortech that peaked @ 11psi, o/r x pipe, flowmaster muffs, 3.73 gears, and all the other bullshit that is needed when boosting a car on his 04 GT 5speed. With a tune his car put down 403 rwhp and 38x rwtq. This was with the engine otherwise untouched on the stock bottom end, he ran this setup for 15k miles before he sold the car with not one problem, it's all in the tune. This guy the OP is talking about might be lying, but they can reach that power level. Oh, and my friend would eat modded LS1's all day long in his car. Funniest kill was a 01 WS6 that had the license plate GTKILLR. So if he is telling the truth, watch out. People on this site always seem surprised that a blown 2 valve reaches that power, cuz around here they are everywhere. 8 out of 10 charged 2 valve(pi cars) I see make no less than 380 rwhp. Of course, we have some great Ford shops around here, that no there shit and how to tune., when it comes to Mustangs (Modular Powerhouse,Higgins, couple of others)

SilverStang00
01-17-2007, 07:49 AM
Oh and it's really no comparison of a 96-98 2 valve and 99-04 2 valve. They are totally different, as others have mentioned, so dont go off what you know of blown non-pi GT's, they are teh suck, and make no power.

ScreaminRedZ
01-17-2007, 08:21 AM
I must depend on the car and the tune. My friend had a 2000 Saleen vert with a Vortech blower. On 13 psi and race gas it made 403 rwhp. He put a larger pulley on it and tuned it for pump gas. Never redynoed it, but we raced about 10 times from a roll and everytime I would pull him about 1 to 1-1/2 lengths from 60-120. At the time my Z28 made 344 rwhp. He had his top down and I had my t-tops off. I had a 190lbs passenger and he had a 110lbs passenger.

MrDavid
01-17-2007, 09:14 AM
I'm sure its possible, I've heard of mid to upper 300s on 8psi. But thats with headers and bigger than stock x pipe. 10psi on stock manifolds with a catback just sounds a little weird to me. Either way, a GT with 10psi will beat you.

I don't know where you come in with this "GT will beat you" crap, because no GT with 10psi is going to touch my car. Mine lays down 520 on a 150shot so I don't think i'll ever see the back end of a supercharged GT on 10psi. I never said anything about beating one anyway, or getting beat by one. Again, upper 300's on 8psi, I would love to see some proof but I doubt you have any.

ScreaminRedZ
01-17-2007, 10:07 AM
I think he was refering to the original post question.

99Silverado5.3
01-17-2007, 10:18 AM
...how should my car hold up to this car in a drag race? ( I don't have any dyno #s for my car)

Sorry if this post is in the wrong section, but I really didn't know where else to put it.

Junk the jet and flowmaster and throw gmmg, magic stick, tune and tires and go eat some mustangs :devil:

...oh and make sure you race him for the most $$$ he will go

SnakeBite2k3
01-17-2007, 10:53 AM
400rw is a bit much for a stock 2V and if he does put down that power the block wont last long. a buddy blew his GT block with a blower and now has a 03 cobra bottom end

SilverStang00
01-17-2007, 10:57 AM
400rw is a bit much for s stock 2V and if he does put down that power the block wont last long. a buddy blew his GT block with a blower and now has a 03 cobra bottom end
It will with a good tune, trust me, I see them all the time :thumb:

SnakeBite2k3
01-17-2007, 10:58 AM
It will with a good tune, trust me, I see them all the time :thumb:

:cheers:

ponygt65
01-17-2007, 11:04 AM
First off....Intakes come with blowers...so that's not saying much. It is pretty much a given. Secondly....how do we know he only has a catback? Nobody has talked to this guy at all. So this is all hear-say shit.

Can a 2v reach 400RWHP blown..sure they can. Does this one?...I doubt it. (if he only has the blower and catback). IMO, he is ~380RWHP....but that's just me.

bottom line....we can speculate all day, until someone talks to him, and looks at his dyno run.

And I am glad to see this post......it helps weed out the LSx folks that really know mustangs, and those that have no clue. :thumb:

98Z28MASS
01-17-2007, 12:42 PM
I'm sure its possible, I've heard of mid to upper 300s on 8psi. But thats with headers and bigger than stock x pipe. 10psi on stock manifolds with a catback just sounds a little weird to me. Either way, a GT with 10psi will beat you.

+1 :judge:

ScreaminRedZ
01-17-2007, 04:11 PM
I think the car with the drag radials will win.

Irunelevens
01-17-2007, 04:25 PM
400rw is a bit much for a stock 2V and if he does put down that power the block wont last long. a buddy blew his GT block with a blower and now has a 03 cobra bottom end
He blew the block? Or blew a rod out the side of the block? Cuz a GT block is ALMOST as strong as an '03-04 Cobra block. It's the internals that are the weak link, and with PROPER tuning, 400-415rwhp is the limit I would go on pump gas, for a daily driver. I've seen plenty of stock-internal GTs with 390-410rwhp, as daily drivers.

SnakeBite2k3
01-17-2007, 05:14 PM
i dont know what he blew but i wasnt pretty. when i see him i'll ask him :)

"stock"
01-17-2007, 05:17 PM
:bs: I don't think so. I had a buddy with a 97 GT (not much diff in the motor from a 99) who had a supercharger pushing 6lbs through it and it only dyno'ed 290 on a dynojet dyno. I highly doubt that 4lbs more would have boosted it over 400. And my buddy also had full bolt'ons.

sorry buddy but 97gt's were non pi and dogs trust me i own a 96gt.The 99 with a pro charger at 10psi with a cat back and a good pump gas tune will make 415-430 easily.

"stock"
01-17-2007, 05:21 PM
I don't know where you come in with this "GT will beat you" crap, because no GT with 10psi is going to touch my car. Mine lays down 520 on a 150shot so I don't think i'll ever see the back end of a supercharged GT on 10psi. I never said anything about beating one anyway, or getting beat by one. Again, upper 300's on 8psi, I would love to see some proof but I doubt you have any.

im not on here to be a smartass or anything i own a mustang and i joined because i want a ls1.As for your comment about upper 300's on 8psi i can show you several got one friend with a 03gt vortech 8psi no aftercooler making 362, another with a 96 gt procharged 10psi making 427 and shane ONEMEANZ knows both of them.There are pics of these cars on here under local mustang club i think is the name of the thread.