65 mustang

You would problably want to put a real nice exhaust system along with a real good tune up, for starters anyways.
 
If im going to explain this to you Im gonna start by sayin that a I6 will not ever really sound like a V8 just like a eclipse will never sound like a mustang.

So that aside I think that they sound similar to the V8's. A good exhaust system will just make your engine flow better and depending on what kind of muffler you want it changes the sound of the exhaust. If you want something loud and head turning I would go with a dual out header and glasspack mufflers. You said "purr" like a V8 I have no clue what you exactly mean by that but if you want a quieter muffler search around and talk to people about there experiences.

I mentioned the tune up because that will make your engine perform better and work better. When it is working more along the lines of "good" or as close to the way it was when it was new will make the engine run like it should thus inproving intake and the exhaust will be the way it should too. Start with the basics you know all new spark plugs and maby wires too, change the oil and oil filter, you might want to put in a new fuel filter, and timing if you can or know how. Then if you can move on to bigger stuff like tuning the carb or even a carb rebuld. Whatever is in your own limits, I have no clue about you, your expereince, or your engine so Im just being as vague as I can.
 
mark22":1n6hwo94 said:
What can i do to make it run about like a v8

That's a loaded, and very vague question.
There are many 4 & 6 cylinder cars out there that can beat the pants off of a "typical" production V-8 car. At the same time, there are a lot of V-8's out there that one of our beloved I6's will never truly keep up with.
I guess what I'm saying is that you need to be a little more specific to get an accurate answer to the question.

What is the car, what engine do you have to work with, what's your general budget, and what are you trying to keep up with (what's your goal)?

That being said, a quick opinion here...
From a simplistic point of view, an internal combustion engine is really nothing more than a big "air pump" with the fuel being added to the air product it is moving to unleash the potential energy of the fuel and convert it to kinetic energy of motion. So, generally speaking, ANY engine will "run" better if you improve it's ability to flow air (its ability to "breathe").
The typical Ford I6 that we on this board are so fond of is a pretty bullet proof design as far as longevity, as most have a 7 main bearing bottom end (except the early 4-main 144 and 170's).
However, they don't breathe very well in their stock form. Improved induction and exhaust will really wake these engines up.
Will they keep up with a Z06 Corvette? Not likely, unless you put the car on a serious diet, AND go to a turbo, or blower, plus nitrous, or something along those lines.
But... A good intake and head, some porting, nice header and exhaust, a little cam action, maybe mill the head to get a little more squeeze, modern electronic ignition..., that could typically put one of these engines on par to keep up with a modern Mustang GT, unless it's in a really big, heavy car. A little "roundie" Falcon is only about a 2,400 lbs car, vs about 3,500 lbs in a new Mustang, so it only takes about 2/3 the power to achieve a similar goal.
Theoretically, if you could get 200+ HP at the wheels of one, it would give a run at the 'stang, and the torque of these engines is much better, so you could beat one if you set it up to wind properly. That is a bit of a chore, but still a realistic goal for a solid 200 or 250 that has been well thought out.

The kicker is that these are a lot easier to work on, create great torque typically, and get excellent mpg in most street applications.

Soooo... again, what are the parameters you have to work with, and what are your goals?

Mike.
 
If you are looking to keep up with the V8s in the power department, then with the restrictive log intake, a turbo seems to be the best way to go. The intake can be milled, drilled and adapted for a 2bbl carb but the runners are still a restriction. Forcing the air/fuel mixture through the intake alleviates a lot of the intake desgn flaws.

A turbo, small 4bbl, good cam and dual out header will net you plenty of power. Its a bit expensive but making some real power with these engines is gonna be spendy due to the poor head design.

"make it purr like a V8" "make it run like a V8" these are very vague questions. Tell us what you are really trying to do. Make it SOUND like a V8? Make POWER like a V8?
 
The only REAL way to make it sound, run, have the power and torque of a V8 is to do a engine swap. If your looking for a huge loud engine that blows any car you ever race or something your gonna have to switch to a V8. Just thought I might add that because it seems like that is where this discussion is headed.
 
I have a 65 mustang with a 170.It has a good tune on the motor using all stock parts,all parts working properly helps 10 fold!.I put a duel exaust on it using reversed glass packs that measure 14 inches long Exiting just before th tires.Idles very close to a v-8 sound wise although kind of loud and pipey sounding at speed.Overall sounds great even with using the stock exaust manifold.AS far as power like a v-8, it being in great running condition puts a lot of, but not all v-8s to shame.Make it run right and you should be happy 20 plus miles to the gallon and not having to do a motorswap is GREAT.if you want more put a turbo on it ,all your tuning efforts will shine here. :D
 
Go and rain on his parade why dont you.Why does this website even exist?
Clifford used to say that thier duel out header with turbo mufflers had a v-8 rumble at idle.Iget compliments on the way my 170 sounds on a reguler basis.Help him out,the hobby is not about give up and motorswap it,he knows thats the only way to get a v-8 im sure. :D
 
Dual-out headers sound good. On mine I have the stock manifold with a turbo-type muffler. It's got a deep idle and it's loud when I stand on it. There's a drone from 35-50 mph, but above that it's pretty quiet.

Here's some sound clips. Most of them still work.

Spences66six, true duals with glasspacks and turndowns just before the rear axle.

x21's stock inline six, 200 cid, one 1978 exhaust manifold, stock single pipe leading to a $20 cherry bomb with a turndown in front of the rear axle.

80Stang's 200 with a Dynomax Super Turbo and too many engine mods to list here. Go here to see them.

And lastly here is a video of Okefenokee Comet's 200 with dual out header and Borla XS mufflers.

Enjoy. I like those Dynomax the best I think...

EDIT: I agree with you Joe...there's been a bit of negativity around here lately.
 
Guys, you're forgetting about the new aluminium head, Buy the new head, DUI dizzy and pacemaker headers, instant pur V8. Mike is doing all this work for us to beat those V8's. (like the head and the DUI) for more guys get into the 6's and enjoy there ride. Yes, everyone likes to tinker but just adding these three pricey parts still gives you a lot of tinkering to do & still makes the best power without a lot of guess work.
 
I don't think anyone is trying to be "down" on the kid.(i'm assuming kid, sorry if I'm wrong)

I think they are being realistic while trying to provide accurate advice. Researching this site, getting the falcon performance hand book, and setting realistic goals with detailed information is the starting point for any I6 project.

You can't just throw parts at these cars like you can a v8, there are some tried and true "packages" that we have all found, but it isn't as cookie cutter as the v8 guys.

We can run and sound similar to v8's all day (that is similar... not exactly like), BUT, we need to know, what's his starting point, does it run well, is it in top tune, it's a 65 stang, 170 or 200, has it been swapped out before, does he want to go to a 250, what is his budget, does he want it to sound like a v8, or run as fast as a v8, 1/4, 1/8, auto-x, open track, N/A or forced induction, daily driver, has it already been chopped up as a project, does it need to stay stock.. there is a lot of info missing for us to provide good and accurate info.

We have several cars here running in the 14's or lower, the same as a modern "street stock" mustang, and a couple even lower, some cheap, some not so cheap.

we all love the i6 and not a one of us want's to see one swapped out for another 289/302/351, but on the other hand, we also can't just say, if you want to make your 6 _____ like a v8, go to napa, here's the parts list...

so mark22, we aren't being down, or trying to be rude, quite the oppisite!!

:D

We just want to make sure we give you the best information we can to reach your I6 goals. So give us a bit more info on what your intentions are and I'm sure we can all pitch in with the information to reach them.

Good luck and happy wrenching.
 
I've heard one of our forum members cars at HAN with a 264 cam and dual exhaust sounds like a warmed up small block enough to fool even V-8 owners they got a surprise when he opened the hood up and they saw a six :lol:
 
I get coments all the time that my engine sounds like a 351 v-8, well it's a inline six 200 cubic Inch, with a Paxton Supercharger! With six into two headers and dual exhaust, Your six can sound as good or beter that a eight, if you plan your build?
 
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