325 hp with bolt ons on 99-04 gt - MustangForums.com



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Old 12-14-2005, 12:40 AM   #1
sdsjr4
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Default 325 hp with bolt ons on 99-04 gt

Is it possible to get 325 hp with bolt on's and what parts would you put togeather to get it if so?
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Old 12-14-2005, 12:48 AM   #2
2000GT4.6
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Default RE: 325 hp with bolt ons on 99-04 gt


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ORIGINAL: sdsjr4

Is it possible to get 325 hp with bolt on's and what parts would you put togeather to get it if so?
No, it is not possible, rear wheel OR flywheel.

With my below listed mods (every bolton + cams and tune) I am making something around 322 flywheel horsepower, or 280 RWHP. Some people claim to have made/make 280 RWHP with no cams, but I stronly beileve (as do others) that their dynos were screwed up when they did this.

BTW this is for a SOHC 99-04 GT car, not a DOHC car or a 05+ GT.
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Old 12-14-2005, 12:50 AM   #3
nanaki
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Default RE: 325 hp with bolt ons on 99-04 gt

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Quote:
ORIGINAL: sdsjr4

Is it possible to get 325 hp with bolt on's and what parts would you put togeather to get it if so?
No, it is not possible, rear wheel OR flywheel.

With my below listed mods (every bolton + cams and tune) I am making something around 322 flywheel horsepower, or 280 RWHP. Some people claim to have made/make 280 RWHP with no cams, but I stronly beileve (as do others) that their dynos were screwed up when they did this.

BTW this is for a SOHC 99-04 GT car, not a DOHC car or a 05+ GT.


hahaha. the 05 can get right around there with a new intake and SCT and removing that little honey comb thing.

yes, i'm jealious of the 05s great power potential with just simple boltons. [:@]
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Old 12-14-2005, 01:27 AM   #4
czwalga00gt
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Default RE: 325 hp with bolt ons on 99-04 gt

LT headers, o/r xpipe, straight through catback, CAI, throttle body, plenum, u/d pulleys, tune.

You may possibly touch 320-325 at the motor.
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Old 12-14-2005, 01:52 AM   #5
code3GT
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Default RE: 325 hp with bolt ons on 99-04 gt

Right around 340RWHP here, but it has been a long and expensive road.
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Old 12-14-2005, 01:53 AM   #6
Fallstar01
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Default RE: 325 hp with bolt ons on 99-04 gt


Quote:
ORIGINAL: 2000GT4.6


Quote:
ORIGINAL: sdsjr4

Is it possible to get 325 hp with bolt on's and what parts would you put togeather to get it if so?
No, it is not possible, rear wheel OR flywheel.

With my below listed mods (every bolton + cams and tune) I am making something around 322 flywheel horsepower, or 280 RWHP. Some people claim to have made/make 280 RWHP with no cams, but I stronly beileve (as do others) that their dynos were screwed up when they did this.

BTW this is for a SOHC 99-04 GT car, not a DOHC car or a 05+ GT.
With 322 flywheel you're pretty darn close and you don't REALLY have every bolt-on. Where's your P-51 intake from Fox-Lake? How about the Mezie electric water pump? You have a manual Rack or still using that power steering? Have you bumped up your timing to near-ping on the highest available octane? You have a light-weight/smaller diameter flywheel?... All I'm saying is that there are still some options available. I think you're dyno results showed you had lean A/F ratio as well so I bet with some tweaking and timing you could get a little more power. For more power to the wheels, you can throw on some ultra light-weight small wheels with thin tread tires, ultra light weight rear brake discs, carbon-fiber driveshaft with aluminum yokes, lightweight clutch and pressure-plate (to go with the new flywheel). Afterthat you can go to dumps and get rid of your cat-back all together. You could remove your filter for the dyno for a couple more hp.... There's always a little more. Plus, how cold was your engine/intake when you dynoed it? Some people ice it down or let it cool off completly so that could explain their numbers.
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Old 12-14-2005, 01:58 AM   #7
krukster
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Default RE: 325 hp with bolt ons on 99-04 gt

im 286rwhp on a sohc..00' comp cams stage II, comp springs, C&L CAI, upper plenum accufab 75mm T/B, BBK LT Headers, BBK o/r X, maganflows, no cats, 4:10s, ram stage II, ram alluminum flywheel, SCT tune.. i think you could get over 300 at the wheels with some bad *** head pnp... patriot or fox lake..and a p51 intake...shizz easy if you have the $ abd the know how. wait..i take that back, that dyno was before the clutch and flywheel...
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Old 12-14-2005, 02:06 AM   #8
GrayGhost01GT
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Default RE: 325 hp with bolt ons on 99-04 gt

I would go with a Catback of your choice preferably Bassani and a nice mid pipe, Long tubes,Tunner,CAI,Throttle body,pleanum,gears wont give you no horsepower but will give you a nice boost in acceleration. probably be around 310HP just guessing? RWHP mybe 300
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Old 12-14-2005, 02:21 AM   #9
Matts00GT
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Default RE: 325 hp with bolt ons on 99-04 gt

Way off gray ghost. With those mods maybe 260 to the wheels.
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Old 12-14-2005, 02:38 AM   #10
Fallstar01
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Default RE: 325 hp with bolt ons on 99-04 gt

Let me take a stab at it.

P-51 Intake with a Lightning MAF, No Screen and a Huge Filter strapped on to it or no filter for that matter.
Stage II Naturally Aspirated cams and Valve springs to spin to 7k RPMs. A/C removed, Powersteering removed, Electric Water pump, Underdriven Alternator, lightweight billet idler/tensioner pulleys with the lightest, smallest diameter crank pulley that will still spin the alternator at the underdriven speed. L/T headers with dumps at the end. quarter-master button-style clutch assembly, PST carbonfiber driveshaft with aluminum yokes, slotted/drilled rear discs, 12 lb rear wheels, Spool, EGR delete, 75mm TB...
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