How much HP gain?

[rockmanxl]

hey guys, im new to the forum, i just wanted your thoughts on the hp gains id get by installing the following on my 97 GT auto

Hawk's Racing Underdrive Pulleys
Ford Racing 4.10 Gears
Jet Power Module Racing Chip
Revo Sport Cold Air Intake
C&L Upper Intake Plenum
MAC 70 mm. Throttle Body
MAC Long Tube Headers
MAC H-Pipe w/ Hi-Flow Cats
MAC 3.5 in. Catback Exhaust

 

[rockmanxl]

and then how much more would i get if i add to that: PI intake manifolds upper + lower, PI cams and do a PI head swap

 

[3ponyshow]

By doing the PI cams, intake and heads first, you would realize more gains from the intake and exhaust bolts ons you have listed. I would do the long tubes at that time also just for simplicity sake.
I have a 2002 auto and started at 208 rwhp. I already have PI cams/heads and most of the bolt ons you mentioned. I've inquired about the TB, plenum, intake and LT's and was told that would put me at maybe 260 rwhp. So that's pretty much where I think you'd end up. Without the PI, your bolt ons would yield minimal gains.

Understand, This is based on my own experience. I'm no mechanic. Lots of inquiries to people that know. So I hope it helps.

 

[rockmanxl]

I was wondering which one I should do first... the PI upgrades or all the bolt-ons i mentioned in my first post... Im leaning more towards the PI upgrades... Im caught in the middle... your opinions on which I should do first would be really helpful too... thank you!

 

[3ponyshow]

PI's first. IMHO. With just those, you're going to notice a big difference. Then the additional bolt ons will be more noticeable also.

 

[LI98GTStang]

Some of those items come off when you do the PI headswap and some are easier to install when it's all apart or you would be reinstalling when you do the headswap i.e. LTs and pulleys. If you've got the cash, I would go with the PI parts with the LTs and mid pipe, then go from there.