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Author
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Topic: reach 500hp
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NonOpSlow2V
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Member # 6111
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posted
 
 
what am i gonna need exactly to get my gt at 500 hp...as of now my block is stock...
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1997 Autumn Orange GT vert
1996 Mystic Cobra
2005 95ci Harley Road King
2011 F150 Raptor
Posts: 2139 | From: San Francisco | Registered: Oct 2005
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CDT
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Member # 5004
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posted
are you talking 500hp at the flywheel or at the tires?
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Custom Dyno Tuning
510.331.0608
Home of Flat Fee Tuning For All Cars, Trucks and SUV's, EFI & Carb, SCT, AFR, Dynatech, STS Turbos, N2O Refills
Posts: 1053 | From: Hayward | Registered: Nov 2004
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Apexmotorsports
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Member # 5307
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posted
quote:
Originally posted by autumnstang97:
what am i gonna need exactly to get my gt at 500 hp...as of now my block is stock...
Put PI heads on your 97, if you don't have them already, and get a Kenne Bell 1.7 and you will have very close to 500HP at the flywheel.
[ November 15, 2005, 08:51 AM: Message edited by: Apexmotorsports ]
Posts: 957 | Registered: Feb 2005
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92stangLX
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Member # 3252
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posted
Lots of boost ![[Big Grin]](biggrin.gif)
Posts: 5302 | From: San Francisco | Registered: Sep 2003
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1EVLSNKE
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Member # 4789
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posted
putting p.i heads on a 97 gt and adding a blower is not a good idea. the compression is gonna up to 10: something and thats not good for blower.the engine will probably blow up..
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LS WHAT
ORGANIZATION
VICTORIES:
GM INC,1 Sic formula(FRDEATR)
Posts: 422 | From: SAN JOSE | Registered: Aug 2004
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NonOpSlow2V
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Member # 6111
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posted
i''m looking for 500+ at the wheels....my plan is to definetly go with the KB 1.7L...now what if i throw on PI heads and intake...or a bullit intake with low conpression pistons...and a cobra krank...and a KB 14 PSI pully on the 1.7...will that work?...along with a 255lph in tank fuel pump..does the KB come with 42lbs/hr injectors?...hopefully it does...and with all that will my 97 push 500rwhp?...i'm also goin to have 3"73...C%L CAI, and i want a powerfull...strong clutch...mine right now is still perfect....whats a good clutch for my 97 even without the blower and then with the blower?...i'm goin to APex for the tuning and stufff and for the clutch installation....and if they do internals then also the crank and pistons...and the blower will be done here at home...so let me know if all these things will work out or if u suggest something else in addition to what i have listed or if u want to include something...thanks guys...
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1997 Autumn Orange GT vert
1996 Mystic Cobra
2005 95ci Harley Road King
2011 F150 Raptor
Posts: 2139 | From: San Francisco | Registered: Oct 2005
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CDT
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Member # 5004
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posted
yeah with a built engine and blower you shouldnt have much troubles.
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Custom Dyno Tuning
510.331.0608
Home of Flat Fee Tuning For All Cars, Trucks and SUV's, EFI & Carb, SCT, AFR, Dynatech, STS Turbos, N2O Refills
Posts: 1053 | From: Hayward | Registered: Nov 2004
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Apexmotorsports
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Member # 5307
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posted
This is what I would do since you want to replace the pistons....
#1-Get a built CHP 5.1L Stroker short block
#2-Get some nice heads
#3-Dump the C&L and get a Lightining, SCT, OR Pro-M MAF
#4-Slap on the 1.7L Kenne Bell
#4-Get a new Kevlar clutch
#5-Get a nice tune
This combo should give you a RELIABLE 500RWHP and show be drivable like a normal car. We have this EXACT combo going into a car.
Posts: 957 | Registered: Feb 2005
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NonOpSlow2V
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Member # 6111
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posted
isnt there anywasy i can do i using my stock 4.6L block...i can probably stroke it to a 302 and go from there...i want to feel the power and drag it occasionally at the track once in a while...but overall i want to be able to drive it around 4-5 days a week and be able to eat chevys all day cuz at work i'm the only Ford guy...and everyone else is a chevy or ricer...so i want to suprise them o ne day when they notice my stang in the lot...thyey're gonna notice it aint a joke when u look at a mustang...with a fully modified sc motor...they'll kall me daddy when i go to work...lol...ok sorry that was a little story...back to reality...so is there anyway i can achievee 500rwhp with my stock block...PI heads...ect...or how much does an 03 cobra motor cost...i have the catolog but it didint say a price...its its reasonable with the computer and wiring harness...shit i might as well toss that in the engine bay and slap on a 2.2L KB...cams....full bassani exhasut...ect...
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1997 Autumn Orange GT vert
1996 Mystic Cobra
2005 95ci Harley Road King
2011 F150 Raptor
Posts: 2139 | From: San Francisco | Registered: Oct 2005
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Apexmotorsports
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Member # 5307
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posted
The problem is your stock block with the PI heads will have a high compression ratio, which is NOT optimum for high-levels of boost. 500RWHP is alot to get out of a 4.6 and will not be cheap to do right. If you want to do it cheap just do a PI swap and get like a 200 Shot of Nitrous and you still WILL NOT get 500RWHP...
You can keep your stock block but you still have to buy the kit and have your block machined. Give HCI or CDT a call about the machining costs and they should be able to give you an idea of what a kit for a 4.6 would costs to make it capable of 500RWHP. Everyone wants 500RWHP BUT are you also going to beef up your suspension, chasis, clutch and brakes to support the engine? If you are going to dump all the money into the engine with out making the other necessary upgrades you are wasting your money. Do your brakes, chasis, and suspension first.. do the engine LAST.
Posts: 957 | Registered: Feb 2005
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WILDTHANG
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Member # 4441
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posted
This may sound like stupid question, but why is it that people put lower compression pistons in a blown motor? It doesn't make any sense to me to lower the compression and then boost it? What is the point and why is this nessecary?
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07 GT500
66 Drop
Posts: 882 | From: Lafayette | Registered: Apr 2004
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92coupe
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Member # 1957
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posted
quote:
Originally posted by WILDTHANG:
This may sound like stupid question, but why is it that people put lower compression pistons in a blown motor? It doesn't make any sense to me to lower the compression and then boost it? What is the point and why is this nessecary?
thats not always the case, for a reliable daily driven capable car you need to lower compression for high boost. straight drag cars use high compression with o-ringed block and heads with wire lock head gaskets. but like i said you need a very strong bottom end.
Justin
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94-GT BLOWN & STROKED
Posts: 1209 | From: antioch | Registered: Oct 2002
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bunchmyfunky
CAFords Drag Racing Mod
Member # 360
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posted
Heres another way to get 500rwhp. Built short block, Patriot stage II heads, Custom or Comp cams, plus all the standard boltons , exhaust and that should get you around 310rwhp or so. Then put a 200shot to that. But like said before, there are alot of other things to upgrade to be able to support that. Maf, injectors, tune fuel pump etc... the list just goes on and on. You will spend alot of money to get the car to the 500rwhp and to be able to support that HP. It will cost you more then what your car is worth.
Posts: 2433 | From: Vacaville | Registered: Jul 2001
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AJBlackGT
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Member # 3936
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posted
quote:
Originally posted by WILDTHANG:
This may sound like stupid question, but why is it that people put lower compression pistons in a blown motor? It doesn't make any sense to me to lower the compression and then boost it? What is the point and why is this nessecary?
Because you will have problems with detonation with ~10:1 compression and a reasonable amount of boost unless you have something to prevent that, like race gas, or water/meth injection.
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90 Notch
Posts: 1896 | From: Sacramento | Registered: Dec 2003
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NonOpSlow2V
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Member # 6111
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posted
ok...what if i upgrade my cams...port match heads...intake....70mm throttle...80mm maf...internal upgrades...stroke it to a 302...42lbs injecors...1.7L kb with 14psi....custom dyno tune......or am i better off in dropping in an 03 cobra motor...
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1997 Autumn Orange GT vert
1996 Mystic Cobra
2005 95ci Harley Road King
2011 F150 Raptor
Posts: 2139 | From: San Francisco | Registered: Oct 2005
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1Sicgt
CAFords OG
Member # 714
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posted
You can buy complete 03-04 cobra motors with blower and computer for around 8g now. It's WAYYYYY more reliable, and has enough power on tap to make your balls tingle.
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14 Focus TS ST3 full Stg3, ready for bigger Turbo
2003 Cobra Track Car
Posts: 8145 | From: Hitting the Apex | Registered: Jan 2002
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CLEEN 50
CAFords OG
Member # 5867
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posted
quote:
Originally posted by 1Sicgt:
has enough power on tap to make your balls tingle.
RMFAO ![[Eek!]](eek.gif) ![[worship]](graemlins/worship.gif)
Yea this motor/block definately has the capability of handling 500hp w/ ease. I say go for the 03 cobra motor ![[burnout]](graemlins/burnout.gif)
[ November 16, 2005, 12:49 PM: Message edited by: CLEEN 50 ]
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91 GT
(cafords reg date: 6/02)
Posts: 2534 | From: Peninsula | Registered: Jul 2005
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WILDTHANG
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Member # 4441
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posted
quote:
Originally posted by 92coupe:
quote:
Originally posted by WILDTHANG:
This may sound like stupid question, but why is it that people put lower compression pistons in a blown motor? It doesn't make any sense to me to lower the compression and then boost it? What is the point and why is this nessecary?
thats not always the case, for a reliable daily driven capable car you need to lower compression for high boost. straight drag cars use high compression with o-ringed block and heads with wire lock head gaskets. but like i said you need a very strong bottom end.
Justin
Why not just run standard pistons and turn the blower less? Run a bigger pulley, less slipage.
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07 GT500
66 Drop
Posts: 882 | From: Lafayette | Registered: Apr 2004
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BlacksheepMod50
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Member # 2378
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posted
quote:
Originally posted by bunchmyfunky:
Heres another way to get 500rwhp. Built short block, Patriot stage II heads, Custom or Comp cams, plus all the standard boltons , exhaust and that should get you around 310rwhp or so. Then put a 200shot to that. But like said before, there are alot of other things to upgrade to be able to support that. Maf, injectors, tune fuel pump etc... the list just goes on and on. You will spend alot of money to get the car to the 500rwhp and to be able to support that HP. It will cost you more then what your car is worth.
![[patriot]](graemlins/patriot.gif)
Thats what I did... and I somewhat kick myself for it, spent too much money, Im over 20K deep in mods (some of that because I got screwed on parts, or something broke etc) It just isn't cost effective to mod the 4.6 GTs and try to get LOTS of HP out of them without blowing your cash for several years.
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98 4.6, stroked to 5.0, all forged, 11:1 comp, cams, LTs, Tubular K-member & A-Arms, Coilovers, Saleen rims, 99+ mani., ported F150 heads. And more..
Posts: 288 | From: Fair Oaks (Sacramento) | Registered: Jan 2003
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88gt
Custom
Member # 579
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posted
So you want to more than double your horsepower that you currently have in your 97? Are you doing that because you want to get a certain time/trap speed at the track, or because you want that magical dyno sheet with the big 500 on it?
This might help people give you some better advice.
Posts: 1482 | From: Santa Clara/Bay area | Registered: Nov 2001
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tonster
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Member # 6093
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posted
quote:
Originally posted by 88gt:
So you want to more than double your horsepower that you currently have in your 97? Are you doing that because you want to get a certain time/trap speed at the track, or because you want that magical dyno sheet with the big 500 on it?
This might help people give you some better advice.
i agree. i mean if you're looking for some 1/4 mile time then there's a lot of other things that can help you achieve your goal in addition to a powerful motor. if you're looking for 500rwhp n/a, it won't happen without a lot of though. if you're gonna get blown then that's another story. my suggestion, get a built block from someone like mph, vt, etc. or go local with hci and blow the hell out of it.
Posts: 321 | From: Fremont | Registered: Oct 2005
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X97headswap
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Member # 5210
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posted
Port match your heads? What would you be port matching them to? You need either ported pi heads (then you will have to worry about dropping compression), or the expensive frpp heads. I ran into this problem with my 97GT......so I bought a trans am.
Posts: 181 | From: Citrus Heights | Registered: Jan 2005
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rico91stang
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Member # 2389
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posted
quote:
Originally posted by Apexmotorsports:
#1-Get a built CHP 5.1L Stroker short block
UH OH!! Where's 93pony.
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"My shit ain't stock. Shits got a cam yo."-Archie Saleen (Union city)
Posts: 388 | From: Oakland | Registered: Jan 2003
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rico91stang
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Member # 2389
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posted
Oh and I would go with what works. Forged pistons, rods stock crank. Stock heads. Blower grind cams. Stock intake. Novi 2000. 17 Lbs of boost, tuned on pump should be MUCH over 500rwhp.
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"My shit ain't stock. Shits got a cam yo."-Archie Saleen (Union city)
Posts: 388 | From: Oakland | Registered: Jan 2003
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SPEC -Fabrication
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Member # 4980
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posted
quote:
Originally posted by rico91stang:
quote:
Originally posted by Apexmotorsports:
#1-Get a built CHP 5.1L Stroker short block
UH OH!! Where's 93pony.
LOL
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1999 Saleen#124
1997 Tahoe
2006 ZX636R
CWS certified welder
Posts: 1321 | From: drinkin BEER! | Registered: Oct 2004
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