toofst4u666

im buildin my 97 4.6 and just lookin to get an estimate of what im gonna have for power heres the list of mods

hyperteunic pistons 2 valve reliefs
comp cams extreme energy cams
matching valve springs
adjustable cam gears
trickflow timing chains and guides
PI heads
21# injectors
8.8mm wires
75mm throttle body
trick flow upper air plenum
bbk cold air intake
bbk chrome shorty headers
2 1/2 inch exhaust no cats
just looking for an estimate car is a 5 speed btw

E714FEVER

280-290

Yellow Fever

Maybe...230 .

jivepepper

wow are you hard. A stock 99+ gt will almost put that out.


He'll bump up the compression putting pi heads on a 97 short. Which is good for 20+hp. He's going to a good sized cam and degreeing them in so 30 hp at least. Plus his boltons

I'll gusee 280-295. Maybe a tad more.

Yellow Fever

290 or so... Not a chance . I had a good selection of mod's on my 04' GT . Including a Saleen Series IV @ 11psi . And it was under 300RWHP . I wish you all the best . That's why I yanked my stock engine . Spent $15,000.00 on a Stroked Cobra with ALL the extra's .

defconfire

I'll say ~275.

I a using a CMS Stage 1 cams and Patriot Heads, and I put down 287. so i should assume he's putting down more than 230.



I know your supercharger was nothing but problems but did you ever do a leak down test. It may have been something physically wrong with the engine.

mustangman281

Wow your car was completely screwed up. I made 270 with just boltons and tune.

I would say the OP hp would be around 290.

Yellow Fever

I hope for his sake that it does put down 280-290 . I never did a leakdown test on my Saleen. I decided to go all out . And I must say that I have .

jivepepper

lmao under 300 with blower. Well the saleen blower does blow lol. I made 350 with a non intercooled vortech on a stock gt at 7psi. I have well under 15000 in my set up and make 600 rwhp.

Those heads alone will put him around 245-250

jivepepper

plus you didn't have the added benifit of the higher compression you get when put pi heads on a non pi shortblock.