Horsepower Rating?
03-01-2006, 08:19 PM
#1
Thread Starter
Join Date: Jun 2005
Posts: 27
Horsepower Rating?
hey guys i orders a buntch of stuff today for my 98 GT. i orders a CAI, Xpipe, LT headers, Steeda underdrive pulleys and comp cams 270's. What do u think my horse power to the rear wheels will be at? and will i be close to the performance of a 99-04 GT? i already have 4:10 gears and a rear seat delete. Thanks Guys!!!
03-01-2006, 08:23 PM
#2
6th Gear Member
Join Date: Apr 2005
Location: Wilmington, NC
Posts: 5,608
RE: Horsepower Rating?
might wanna do a PI swap before you install your cams...
sn95s 98 gt comes with what 215? or so
CAI, Xpipe, LT headers, Steeda underdrive pulleys and comp cams 270's
CAI 1-3
XPipe 5-6
LT headers 9-10
UDP 5-6
Cams with no PI swap - ????
240ish maybe idk if you will make any gains with cams because you dont have pi swap.
sn95s 98 gt comes with what 215? or so
CAI, Xpipe, LT headers, Steeda underdrive pulleys and comp cams 270's
CAI 1-3
XPipe 5-6
LT headers 9-10
UDP 5-6
Cams with no PI swap - ????
240ish maybe idk if you will make any gains with cams because you dont have pi swap.
03-01-2006, 08:42 PM
#3
5th Gear Member
Join Date: Jun 2004
Location: fl
Posts: 2,485
RE: Horsepower Rating?
1998's came with 225 to the flywheel, so with a 15% drivetrain loss you have roughly 191 rwhp. All the additions (excluding cams) will probably get you 20 rwhp. Now to adress the cam issue...either keep your NPI heads and port and polish them (if you plan on supercharging in the future) or buy PI heads and intake (if you dont plan on supercharging). The addition of the things you already bought + p+p PI heads you would probably come out with around 280-290 rwhp. Good luck!
03-01-2006, 09:06 PM
#4
6th Gear Member
Join Date: Apr 2005
Location: Wilmington, NC
Posts: 5,608
RE: Horsepower Rating?
ORIGINAL: red2k1gt
1998's came with 225 to the flywheel, so with a 15% drivetrain loss you have roughly 191 rwhp. All the additions (excluding cams) will probably get you 20 rwhp. Now to adress the cam issue...either keep your NPI heads and port and polish them (if you plan on supercharging in the future) or buy PI heads and intake (if you dont plan on supercharging). The addition of the things you already bought + p+p PI heads you would probably come out with around 280-290 rwhp. Good luck!
1998's came with 225 to the flywheel, so with a 15% drivetrain loss you have roughly 191 rwhp. All the additions (excluding cams) will probably get you 20 rwhp. Now to adress the cam issue...either keep your NPI heads and port and polish them (if you plan on supercharging in the future) or buy PI heads and intake (if you dont plan on supercharging). The addition of the things you already bought + p+p PI heads you would probably come out with around 280-290 rwhp. Good luck!
03-01-2006, 09:10 PM
#5
4th Gear Member
Join Date: Jan 2006
Location:
Posts: 1,860
RE: Horsepower Rating?
ORIGINAL: rbstang
wow... i thought they had like 215 rwhp damn.. glad i dont have a sn95 gt. Ya i was off at the rwhp but i bet i was pretty close to the crank hp.
ORIGINAL: red2k1gt
1998's came with 225 to the flywheel, so with a 15% drivetrain loss you have roughly 191 rwhp. All the additions (excluding cams) will probably get you 20 rwhp. Now to adress the cam issue...either keep your NPI heads and port and polish them (if you plan on supercharging in the future) or buy PI heads and intake (if you dont plan on supercharging). The addition of the things you already bought + p+p PI heads you would probably come out with around 280-290 rwhp. Good luck!
1998's came with 225 to the flywheel, so with a 15% drivetrain loss you have roughly 191 rwhp. All the additions (excluding cams) will probably get you 20 rwhp. Now to adress the cam issue...either keep your NPI heads and port and polish them (if you plan on supercharging in the future) or buy PI heads and intake (if you dont plan on supercharging). The addition of the things you already bought + p+p PI heads you would probably come out with around 280-290 rwhp. Good luck!
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