the98stang said:
please don't post much about engines cause you really don't know what you are talking about.
the 3.8 does not need a forged bottom end at 11 psi. boost isn't the killer detonation is. i can take a stock 3.8 with 15psi and it will run forever with a good tune, and i can take a 3.8 with forged rods and pistons and completely wreck it naturally aspirated but running lean.
the 4.6 is a turd. i have one and it would be lucky to hit 14.5 in the 1/4. my 97 3800 firebird pretty much keeps within 1 car of it.
the 3.8 ford was copied off of the Buick 231 which became the 3.8L GN turbo engine. ford did away with the buick deficiencies and really came up with an awsomely strong engine.
my 98 3.8 with an 11 psi procharger lasted 40,000 miles on stock 14 lb injectors and no tune. try that with a 5.0 or 4.6. it won't happen. my 98 put down 226rwhp and almost 270 ftlbs of torque with just the procharger,1.8 rollers and dual exhaust. without the procharger it only dyno'd 123rwhp. i'm in the process of a build up right now with 8.5:1 ross pistons,eagle H-beams,ported RPM heads,custom home made EFI spyder intake,42lb injectors,Pro-M univer MAF,RPM cam,Reichardt racing pully to make 18-20psi,water/meth injection that i got off of a buick GN guy for $30
all in all i should have 450rwhp with only about $5500 invested in go fast parts.
the 3.8 and 4.2 cranks will hold far more power than a stock 5.0 or 4.6 crank and the 3.8 doesn't suffer from coreshift above 400rwhp like the 5.0 stock block does.
forst off a supercharged 4.6 won't hold 11psi unless you use forged pistons and aftermarket rods and no it will not make 400rwhp at 11psi. it might make about 340rwhp.the 99+ 3.8 at 11psi makes 300rwhp. the SOHC 4.6 really isn't a great engine. the small bore and long stroke doesn't make it a heavy breather and the heads really don't flow any better than 3.8 heads.
you say a 3.8 won't be insanely fast without boost and a forged engine. neither will a 4.6 or a 5.0. justin starkey from
www.vmptuning.com has an internally stock 3.8 with twin turbo's making 450rwhp at 17psi and running mid to high 10's. try 17psi on a stock 4.6. at 14psi he is at 400rwhp and pump gas.
matt with his white 4.2L singleport and twin turbo's ran 9.85 on a stock block and crank and 27psi and he has been running that car for quite while. he is making about 700hp at the crank and tom yentzner for supersix is running a 4.2 with stock block and crank with forged rods and pistons with a 150shot in a fox body runnign low 10's.
here is a link if you care to educate yourself.
www.supersixmotorsports.com
obviously you don't know your ass from a hole in the ground when it comes to engines and you make the redneck mistake of "don't waste your money on anything if it ain't a V8"
tell buick V6 owners that it isn't worth it to build a V6.
building a V6 isn't really that expensive to build and it gives excellent hp/dollar unlike the 4.6
i didn't even bother to build my 4.6 cause it pretty much is a waste of money to build a 2V 4.6 as it take alot of money to get power out of them. the 3.8 is only slightly more expensive to build than a 5.0 and far less than a 4.6 for the same powerlevels.
do us a favor and don't post anything technical cause you don't have the knowledge for it:Zip2: