Big Power with out Supercharger
- Thread starter hahnan03gt
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MyEarsHurt
New Member
- May 21, 2004
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Without a power adder like giggle gas or a supercharger, you will not be getting another 100+ horsepower anytime soon. A lot of people just go the bolt on route, full exhaust with an o/r x pipe will give you a little extra power, but your best bet if you want a LOT of power without a supercharger will be nitrous, dry or wet, your call...its the cheapest way...
hahnan03gt said:
hey hahnan03gt,
you might have saw my posts, talking about a big block swap, but thats just my own personal taste. however there are a TON of things you can do without going the forced induction route or the "Fast and Furiouis" way of juicing your engine every 10min which can lead to damage if not setup properly (did anybody else notice a rise in decked out eclipses with huge wings, painted crazy on the road after that movie came out!?).
You might want to consider having your small block V8 rebuilt, bored over, after market heads, cam. I'll be honest i'm not familiar with ford engines, i'm used to chevy small blocks b/c I had one in my last vehicle. But i assume its the same concept. Look into a stroker kit, i dunno if they make them for the 4.6L though (Someone please check me on the 4.6L rebuild kit if you can get engine kits for them). With a good engine rebuild its very common to hit the 400hp+ range. As for intake, if your GT has one of the false hood scoops on the stock hood, try to make it functional, with cold air induction, it should also give you nice gains. as for exhaust, try maybe adding headers and custom pipes. Even consider switching out your rear end, it won't give your any added horsepower, but it does give your car a better "get up and go" espeically in acceleration.
And then later on if you want to add some boost you'll be more than ready.
Someone please check me out on this. I don't want to give out info that isn't certain, but thats what i've done on small block V8's
Cold airs are worthless. Don't buy them, don't look at them, don't even think of them.
Don't bother with a stroker kit, ESPECIALLY if you're staying naturally aspirated. The bore is the problem with modular engines. Adding more stroke while keeping the heads suffocated (shrouded) by the small bore is just shooting yourself in the foot. The best way to do an N/A modular engine would be to go with a big bore setup. For that, you need an aluminum block (Cobra) to be resleeved (you don't acutally bore it out).
The big bore with some ported heads and cams, along with a Bullitt intake (until something better comes along) and full exhaust would make one bad ass N/A setup.
Of course that'll cost big $$$, and going the blower/nitrous route gives you more power for less money.
FallenPhoenix
New Member
Well the advice is sound for most engines, but for one there are no aftermarket heads for our engines, cams are just now developing, hell we have 2-3 intakes at the most.
You can bore and stroke the 4.6 out to 5.3 but it's expensive and will not net you a ton of power. It is however a good start on a naturally aspirated motor. A full exhaust will give you the best power gains right now, as for making the scoop functional, I wouldn't recommend it as it has a tendency to bulge and potentially fly off at highway speeds if the honeycomb is taken out.
CAI kits are questionable in thier power gains but you can pick up 5-10hp there. We may be limited by the cubes but our engines love boost for some reason so that's the way most people go for big power.
You can bore and stroke the 4.6 out to 5.3 but it's expensive and will not net you a ton of power. It is however a good start on a naturally aspirated motor. A full exhaust will give you the best power gains right now, as for making the scoop functional, I wouldn't recommend it as it has a tendency to bulge and potentially fly off at highway speeds if the honeycomb is taken out.
CAI kits are questionable in thier power gains but you can pick up 5-10hp there. We may be limited by the cubes but our engines love boost for some reason so that's the way most people go for big power.
VT is making alot of improvement twards the cylinder heads and cams, but the route in making alot of power in N/A form is going to cost alot.
FallenPhoenix said:
Cams have been out for the modulars for a little while now.
FallenPhoenix said:
On the contrary, take a look over at the Corral. There's some guy with a project, forget the exact name but is has "350" in it. He has a big bore 2V with mild headwork and cams, a few other things, the stock lower intake, and side exhaust. He's putting over 300HP and TQ to the wheels. There's still a good deal left on the table too.
FallenPhoenix said:
Any engine loves boost, as long as it's not high compression. Then it just doesn't love it as much.
CAI's aren't questionable, they're garbage. The majority of what little power they may make can probably be attributed to going from the paper air filter to a K&N-style one. You'll make 5-10HP if you're smoking a joint that came with it.
FallenPhoenix said:
FallenPhoenix,
That sux about the 4.6L! Then I would have to agree with getting Boost, and exhaust it would be considered "cheaper."
i don't mean to get off topic but as for removing the honeycomb on the stock hood, i actually considered that when I drop in my CJ. I thought it would be a great way for cold air induction hitting right on top of the air filter, until i heard that lol.
to get a gt into the 400-450hp range you will need a power adder, stock gt blocks cant take much more than 6-8psi of boost safely. A gt with bolts ons, cams, slick, supercharger at 6-8psi should make 400-450hp with a safe tune, it should be good for mid to high 11's to get low 12's you can do without the cams. nitrous in place of the sc should give you about the same results in the 1/4.
FallenPhoenix
New Member
GinoGT said:
I was under the impression that only regrinds were available until a couple years ago.
GinoGT said:
Right, big power can be had but a stroker kit is not going to give you that power alone. If mod A gives X amount of power on a 4.6 it should give X+ on a 5.3
GinoGT said:
The design of our heads is a large part of the equation, any engine will take boost, but some are more efficient at it. The 4v motor likes it even more.
GinoGT said:
Dynos are not the end all be all of power measurement, a CAI will not show gains until your actually on the track moving air and under real world conditions. The CAIs that make power on a dyno (LS1) have large restrictions from the factory and show even more power on the track.
jbrown said:
www.modulardepot.com Guys are running low 12's, high 11's, even mid 11's with N/A 2V's. You just need to really devote the car to drag racing.
FallenPhoenix said:
Our 2V heads suck. None of the 2VNA drag racers rave about cold airs either, so I guess their real world gains are nonexistant as well.
stang976
New Member
4.10 gears, plenum/tb combo. full exhaust (with of Xpipe), vt stage 1 cams, pulleys, K&N filter, a good tune
kah9911
New Member
it depends what you call big HP. you can get well over 300 with a n/a big bore w/ all the bolt ons and some head and cams. put the car on a diet and you will be running some good times.
Sage427 said:
So you think N2O is a buggus power adder that spread out thanks for the stupid movie F&F. N2O was first used in WWII in airplanes, because at certain altitude oxygen is almost non-existing. N2O allowed this planes to go gain more altitude. So I don't want to offend you (or anyone else who don't like N2O), but some of us like the gains we have with our N2O system and not to mention the torque.
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