Fenton-J-Cool

Hey all, it's been a while.
A friend of mine has been driving his 1995 Hyundai S-Coupe for a couple of months but he wants something more. It's in good condition overall and it's bone-stock, save for the NGK Iridium plugs we put in last week. He's noticed better pickup and significantly less rev drops when shifting gears. He definitely was bit by the tuning bug and wants to squeeze everything he can out of this car. Money isn't tight per se, but he is not looking to spend well into the thousands of dollars. Good suggestion: New K&N filter. Bad suggestion: Turbocharger. The car doesn't look like much as it is but we've been doing a bit of research into the subject, and we've seen the end results of other owners' tuning efforts, and we are quite impressed with what we saw.


So to sum it up, I'm looking for relatively low-cost mods that we might be able to do (all though any suggestions are welcome), and maybe some leads on where to start looking. As I mentioned in the title, the car is semi-rare, although they seem to be quite popular down in Australia. TFP, I need your help.

Thanks in advance,
Fenton

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wra

Fenton-J-Cool

And for those who are/aren't wondering:


Stock S-Coupe


Modified S-Coupe


Vive la difference!

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wra

Powderedmaggot

Semi Rare???????? WTF? There are tons of them in Canada. I'd start with the K&N filter, Gut the cat, insulated cold air in take. You are not going to get a ton of power out of it without spending more money than the car is worth. It's a Hyundai.

MSD

There are two easy things that you can do.

First is a low-restriction, cold-air intake so that you can get the most out of more expensive future mods and a gain of ~5HP (and a bit of an increase in gas mileage) now, and new exhaust. For every 10°F you cut from the intake temperature, you can expect a 1 to 1.5% increase in power and torque. This may not seem like much, but in that tiny, low-output engine, a gain of even a few horses or lb-ft is a big difference. If you can route the intake pipe from the stock location to either below the grille or under the fender, you can get as much as a 40° drop on a mild-weather day.

Right now, the exhaust system is designed for low cold start emissions and not for power gain. I don't know of any aftermarket manufacturers who produce headers, but a tri-y system would be preferable to the current setup.

If you want a ~5% increase in power and torque with a slight decrease in economy, you can experiment with timing advances of up to 5 or 6°. I wouldn't go much beyond that, but you can try if you want (at your own risk, of course.)

Fenton-J-Cool

I personally have never seen one except my friend's in Toronto, poweredmaggot, so I was just saying that based on my experiences.
Also I haven't found any shops that carry these kinds of parts for the Hyundai. There's ones that offer universal interior parts for it and that kind of crap, and a few air filters.
We both know that 'its a hyundai', and we're not expecting miracles. We just want to give it a little more character on the road as well as a little more pep.

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silent_jay

Ahhhhh yes the old Scoupe, tons of those around these parts a decent little car, I'll have to see if I can find anything on mods and get back to this thread.

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Absence makes the heart grow fonder

waltert

hyundaiperformance.com

beta engine swap?? I know they do that with the accents, but I dont know about the s-coupe

GetRdone

beta engine swap....ehh. Do the Mistubishi 4g63t swap (yeah, the gsx motor). Its been done on a handful of hyundai's. i dont see why it couldnt be done on one more. It makes one hell of a wrx killer.

HeLLVieW96

DUDE! ITS A HYUNDAI! aka CRAP. dont tune that.. please, for the sake of whats right.. dont...

GetRdone

HeLLVieW, judging by ur post, i can probably judge 2 things. You have no idea about this topic, since many people have made hyundai's somewhat fast (albeit usually not with the normal engine. And the second thing i can assume is that u probably like camaros? maybe mustangs? Just let him tune whatever he wants, besides a 4g63t powered hyundai WILL cause some havoc on the streets and strip./

stingc

Nothing you're going to do to that car will improve its performance noticeably unless you spend much more than the car is worth. Do a regular tuneup and be done with it (I'm sure that the only reason your "special" plugs did anything is that the old ones were shot). You will not feel 5 hp gains, and most of the cheap crap that aftermarket companies pawn off won't even get you that.

The only possible exception to this that I can think of is timing. If you have a mechanical distributor, it might be possible to improve your throttle response a little bit by messing with it. You could also artificially improve the throttle response by modifying the throttle linkage. This does absolutely nothing to make the car go faster, but it can improve feel a little. You can also modify the downshift mechanism if the car is an automatic.

I don't see the point of swapping in another engine. That will cost much more than the car is worth, it will probably be very unreliable, and most importantly, a Hyundai's chassis will not handle it properly. Even if the car turned decent times at a drag strip, it would still drive like junk. The only difference would be that the extra power would make all the chassis deficiences that much more obvious. There would be no comparison to a WRX no matter how much power you gave it.

MrSelfDestruct, all fuel-injected cars I've ever seen come from the factory with a cold air intake. They're mounted behind the grill or somewhere similar. That air is about as cold as you're going to get it.

GetRdone

Stingc, there was an article on a 4g63t powered hyundai in Import Tuner (i think) about 6 or 7 months ago. They said the car handled the power very well, and considering it cost less than 10g's including the price of the car, its pretty cool. It makes a good sleeper IMO.

stingc

Is this the article you mean? http://www.sportcompactcarweb.com/fe...11scc_hyundai/

FWD does not handle power well no matter what. Maybe a high-end acura could make it feel halfway passable, but it would still have very annoying power delivery at low speeds and uninspired handling (I know that some FWD cars can turn decent times both at the drag strip and at autocross, but it doesn't feel nearly as satisfying as it would in a RWD car). There's also nothing that you could do to the Hyundai's awful brakes, steering, suspension, or overall cosmetics that would make it come anywhere near said acura in overall driving feel (yeah, I know there's a price difference). I guess it's just a matter of what we're used to though .

GetRdone

Ive dealt with front and rear wheel vehicles alike. Sure, rwd is nice, but its hard to find an rwd vehicle....anything thats worth owning at least, at a decent price. The 240sx has become popular due to the sr20det swap, but that drove the price of the stock vehicle up.and a stock 240 is lethargic. I guess for what his situation is, if he wants to keep the car, the only thing i think that would make is stand out is the 4g63t, other than that selling it is the only step up he can take.

stingc

In the price range you're talking about, there are Corvettes, Mercedes, and BMW's that I would rather have (all RWD). I think the original poster wanted a much cheaper solution though.

GetRdone

mercedes for under 10g's? I worked at a mercedes dealer, and the only benz ur gonna find is really old, and prolly pretty beat up. I personaly put benz with luxury, not with speed......in general im not a huge mercedes fan tho. Bmw's are nice, and definetely fun for a low budget if u like the oldschool e30 style 325is. Godd motor and handles like a big go kart.

stingc

Dealers always mark things up too much. You can get lots Mercedes for way under $10k from the same era as the E30's (W124, W201, and some W126). Of course Benz is more luxury-oriented than BMW, but I actually think that certain models are more fun to drive than E30's if you know how to push them. Unfortunately, neither Mercedes or BMW are cheap to modify.

crxforum

Wow so the owner of that car went to the Ricer isle of Canadian tire (Canadian Pep Boys) got lowering springs, rims and fog lights. Whoop de doo. That is not modified. That is "universal part application". Oh and I did notice that the cars were European and the bottom one RHD.

GetRdone

um lowering springs arent exactly univeral, considering that the suspension setups (ie spring diameters, lengths etc) are different on most behicles. and how the hell can u tell the bottom one is rhd, u cant even see in the car from that view. and last, anything not stock is modified, see thats the whole idea. Not stock, means modified. Now, its not modified very cool or very fast, but it is modified.

crxforum

Ok technically they are not, but crap companies like APC, Tucan, Ractive, Weapon R, OBX R etc etc make springs that are so crappy, cheap, and for so many applications that anyone can get them for any car. Sure your car will be lowered, but good luck finding some decent shocks for the car. Your not going to find Tokico, Tein, Cusco, KYG (other than bottom line, and not for lowering) for any cars that dont have potential to actually gain from them.

How can I tell that its RHD? Well the License plate is a dead give away. Its not a Holland, or scandinavian coutry plate, or one of the big 5 which leaves it RHD.

With all the cars on the road today who went to their local parts store, ran up the isles with their wallets out and glimmer in their eyes looking for anything that they could stick on their cars to modify them makes it pathetic. I dont know, maybe this guy went all out and has the 3L engine under the hood (Sorry can remember the Hyndai engine code off the top of my head) but without it its just lame.

Maybe its his grocery getter, work car, or just A to B car. Then its cool. But if he thinkgs that rims and lowering springs make his car better then he is wrong. Its just lower and slower to accelerate.

waltert

you know, unless you have a dad or a mentor to help steer you on the right course, its easy to do stupid modifications and be a ricer...hell, I started out as one. I actually paid someone to install an aem short ram intake when I was 16...

I dont think that I really started learning until I discovered the endyn forum.

Larry widmer has done a great deal (though not personally) to make me interested in engines...I havent washed my car since.

just do the basic stuff if you're on a budget. intake, header, exhaust, lightweight flywheel, clutch, 14" wheels. ported intake manifold and *if necessary* a larger throttle body. call RPW to see if you cant get a street grind cam for it. get a simple fuel tuner (SAFC) and tune it with a wideband o2.

there's lots of little stuff you can do...it wont be a screamer, but it'll have more "go" if you do it right.

GetRdone

Do you mean the 6 cyl from the newer tiburons? I think thats the only 3l there is, if its not that then u might mean the Beta motor.

crxforum

Im not exactly sure. I quickly read an article while waiting for a buddy to get off work. It was something about 3000CC (3L) Hyundai Motor in a Pony that someone swapped in there. I dont think it was a Tiburon motor though but I could be wrong. All that sticks in my head about it is the 3000CC Hyundai motor part.

GetRdone

i did a search and it is really hard to find a list of hyundai engines and there codes. I tried a couple of hyundai forums but got lost and confused so i quit.

crxforum

Im thinking back and I keep coming up with 4AGE but I know that is a 1984-1987 Toyota Corolla (Sprinter Trueno) GT-S engine. For some reason Im pretty sure it starts with a 4 and has a g in it. Possibly something along the lines of 4gtz or something like that. I cant fine anything online either. Anyways I know it exists. LOL.

GetRdone

i looked at a series of used engine sites, and the one that was listed as a 3 liter was the "6g72" motor. There are some hyundai motors with a "4" and a "g", actually alot of them do, but most are small 4 cylinders.

waltert

any 3 liter would have to be one of the old mitsubishi motors.

hyundai only makes a 2.7 and 3.5 v-6

crxforum

I would like to appoligise. I found the same magazine I was reading the other week the motor is not the same motor that I thought. The motor was a Hyundai DOHC 16 valve (4g63) that was equipped with a custom turbo set up. The engine is used on Tiburons and Elantras as it says.

GetRdone

4g63 is a mitsu motor, its the n/a version of the 4g63t used in turbo talons.