97 GT PI HEAD SWAP DYNO SHEET INSIDE

[theosan]

Hopefully someone will find this usefull. The car originally dyno'd ~186 HP bone stock and rated at 215 Crank HP.

Before the head swap (everything else already on the car) it dyno'd
213.4 RWHP / 282.6 FT. LB

All in all car feels very fast and strong...and I'm happy with the result. I will be removing the C&L mass air meter and get a new dyno tune. Should be able to squeeze out 270 RWHP.

 

[NiteRydaGT]

Nice numbers.
Do you have a 5 speed or automatic?

 

[tomustang]

did you regap the plugs to .40?

 

[Sick96Stang]

#'s are looking a little low. I have the mods listed in my sig and made 212 rwhp and 284 rwtq. Most 99+ GT's are making right around 250 rwhp stock right?

 

[NiteRydaGT]

#'s are looking a little low. I have the mods listed in my sig and made 212 rwhp and 284 rwtq. Most 99+ GT's are making right around 250 rwhp stock right?

Most 99+ dyno around 230-240 RWHP.
The owner of a local Mustang shop dyno'd his 01 5 speed at 233 RWHP stock.

 

[Sick96Stang]

Most 99+ dyno around 230-240 RWHP.
The owner of a local Mustang shop dyno'd his 01 5 speed at 233 RWHP stock.

Wow those dyno alot lower than I thought they did.

 

[FST BLK Pony]

Wow those dyno alot lower than I thought they did.

they are rated at 260 crank hp why would they dyno 250 rwhp? that makes no sense

 

[Sick96Stang]

they are rated at 260 crank hp why would they dyno 250 rwhp? that makes no sense

For some reason I thought I remeber numerous people saying there 99+ GT dynoed at around 250 rwhp but you are right that would make no sense since there crank #'s are 260.

 

[billyfe390]

With no other mods than the PI swap I went from 189 to 230 after the tune it was 242. Nice numbers man and get rid of that maf its worthless.

 

[Blue97GT]

good numbers man! hopefully you squeeze out that 270rwhp...thatll be sweet!

what do you guys think my 97 will dyno at??

MODS:

trick flow upper plenum
bbk 75MM throttle body
bbk cold air intake
bbk underdrive pullies
bbk off road h-pipe
american thunder catback exhaust
4.10 gears (dont matter in hp numbers)
bbk timing adjuster
frpp aluminum driveshaft....

last 3 dont really matter.
But how much you guys think i will pull???

oh almost forgot! all that PLUS my PI swap.

 

[MyEarsHurt]

What does it take to get 300 HP at the wheels with a PI swap, Porting? Mild/Agressive Cams? Miracle? I am shooting for 300 rwhp in my 98 gt, and I was planning on a PI headswap with either porting or aftermarket cams....whats it gonna take to get to 300?

 

[NiteRydaGT]

What does it take to get 300 HP at the wheels with a PI swap, Porting? Mild/Agressive Cams? Miracle? I am shooting for 300 rwhp in my 98 gt, and I was planning on a PI headswap with either porting or aftermarket cams....whats it gonna take to get to 300?

Pretty much everything you can think of minus a blower. P/P heads, cams, every bolt on in the book, and a great tune. It's tough but it has been done.

 

[billyfe390]

What does it take to get 300 HP at the wheels with a PI swap, Porting? Mild/Agressive Cams? Miracle? I am shooting for 300 rwhp in my 98 gt, and I was planning on a PI headswap with either porting or aftermarket cams....whats it gonna take to get to 300?

Ask nickthegenius his is at 290 I believe.

 

[theosan]

Nice numbers.
Do you have a 5 speed or automatic?

Thanks. I have a 5 Speed.

 

[Darkhorse845]

Yes nice numbers!

 

[Mel96GT]

Very nice but how do you pass CA-smog with that beast?

 

[98stangv8]

Pretty much everything you can think of minus a blower. P/P heads, cams, every bolt on in the book, and a great tune. It's tough but it has been done.

what is yours dynoing at?

 

[theosan]

Very nice but how do you pass CA-smog with that beast?

The beast is completely street legeal and always pass smog test. The h-pipe has cats and I went with shorty headers instead of long tubes for the same reason. Everything looks stock, you can't even tell that I have new heads and intake unless I tell you.

BTW, I didn't change out the cam to some of the nice aftermarket ones but I know I will eventually have to inorder to break 300 RWHP.

 

[Gearbanger 101]

Most 99+ dyno around 230-240 RWHP.
The owner of a local Mustang shop dyno'd his 01 5 speed at 233 RWHP stock.

I've even seem them dyno as low as 220-225rwhp, so his numbers are actually pretty good.

 

[FST BLK Pony]

What does it take to get 300 HP at the wheels with a PI swap, Porting? Mild/Agressive Cams? Miracle? I am shooting for 300 rwhp in my 98 gt, and I was planning on a PI headswap with either porting or aftermarket cams....whats it gonna take to get to 300?

if you get every bolt on including long tubes...you could probably do it with VT Stage 2 cams and stock PI heads.