2008 Hyundai Accent GS (3dr)
 

I just purchased a 2008 Hyundai Accent GS (3dr) Hatchback and I'm already looking to add some minor modifications such as exhaust and intake system. I was wondering if anyone knew of a website where I can find the items I'm looking for. I've tried some of the big names but nothing for the 2008. Thanks for any help!

RE: 2008 Hyundai Accent GS (3dr)
 

I also want to do some larger tires but keep the same size wheel. Maybe 205/60-14's

RE: 2008 Hyundai Accent GS (3dr)
 

I also purchased the same & have the same ideas. I put a K&N air filter in. The cold air intakes I've seen, put the filter in the engine compartment, exposing the filter to all that HOT air! Not what I want. I may remove the air box bottom & drill out some material for better breathing,and at the same time,try to do this on a side where it can suck COOLER air. Not sure what I will do about the exhaust part. It's kinda nice quiet! I have other sports cars that are loud, so this one being the way it is is OK. I may look into a diff. muffler for better flow, but not for the sound of it!

RE: 2008 Hyundai Accent GS (3dr)
 

I can't see how a K&N replacment filter would help. The OEM one is huge.

The OEM air box also cools the PCM. I would not be drilling holes in it so the hot air comes in.

RE: 2008 Hyundai Accent GS (3dr)
 

My wife & I bought a 5 sp. manual 2008 Accent GS last December. With 8000+miles it has had no problems, squeaks, creaks or rattles. My wife loves it as she commutes to work. I thought it should get better MPG, till I recently took it on 3 daytrips over 1400, 3000, 4000, & 5500 foot moutain passes. Accent gota stunning 41.5.42.6, & 45.1MPG! Yeah,feather foot &Accent lets you pass up lots of gas stations. If I'd kept going on the 45MPG tank, I would have traveled 500+miles before needing to fill.

RE: 2008 Hyundai Accent GS (3dr)
 

What road speeds were you driving? What size wheels are on the car?

RE: 2008 Hyundai Accent GS (3dr)
 

Shoz....Feather foot. Simon & Garfunkle said it best. Slow down, ya move too fast. Ya got to make the morning last.

Here in Washington state you have to know how to take hills too, so you don't lose so many MPG.

On the GS Accent, the wheels are 14 inches to reduce angular momentum wheel energy.

45MPG is saving over $40 per tank full($2000 per year)compared to people getting 20MPG. Its time & long past time thatAmericadrives smaller, slower, & smarter. Accent, Prius, Yaris,Honda Fit, SmartCarpeople& otherhigh MPG people know all this....time & long past time.

RE: 2008 Hyundai Accent GS (3dr)
 

I've got an '08 3 dr. Drive on flat rural roads and highways about 15 miles one way to work. Even with the tires pumped up to the max and driving at speeds under 50 mph I can't get over 38 mpg.

RE: 2008 Hyundai Accent GS (3dr)
 

Your 38MPG to work is pretty good. Your work warmups are killing your MPG.

My 45MPG is Washington state daytrips which have few warmups & all warm day temperatures...no winter stuff. If you have lovely terrain,take some'FEATHER FOOTING'daytrips & you'll seemileage jump over 40MPG.You must accelerate much slower than most people. I think that low acceleration is more important than setting a low cruising speed, altho a low cruising speed is v. important to the manual Accent at highway speeds.

RE: 2008 Hyundai Accent GS (3dr)
 

What rpms do you have at 55 mph? I'm at 2750.

The trouble I see it is there doesn't seem to be an overdrive in the 5 speed.

RE: 2008 Hyundai Accent GS (3dr)
 

5th gear is overdrive:
- 1st = 3.615
- 2nd = 2.053
- 3rd = 1.370
- 4th= 1.031
- 5th = 0.837
- Reverse = 3.583
- Final gear ratio = 4.056

RE: 2008 Hyundai Accent GS (3dr)
 

Then the final drive is too high. There is only 500 rpm difference between 4th and 5th.

But thanks for the numbers.

RE: 2008 Hyundai Accent GS (3dr)
 

You should call Hyundai and let them know their engineers and designers are wrong. Maybe next time they will consult you first.

Actually, there is a 669-rpm difference.
60-mph in 4th gear = 3558 rpm
60-mph in 5th gear = 2889 rpm

Remember, this is a small displacement 4-cyl engine with limited torque. You don't want the rpms too low. Those engine make power and are more efficient at higher rpms.

RE: 2008 Hyundai Accent GS (3dr)
 

I tried calling them but they only take calls from you apparently.....

RE: 2008 Hyundai Accent GS (3dr)
 

I forgot about that. I'll call them on your behalf and make sure they take you calls from now on.

RE: 2008 Hyundai Accent GS (3dr)
 

I've thought about calling them. My Festiva had a 1.3L motor with a 5 speed. 4th and 5th were both OD and the car ran great, easily getting 45 mpg. The gear ratios on the Accent's 5 speed transmission are way to close for the most efficient economy. There is plenty of torque multiplication on this car. I didn't buy this car for its quarter mile performance.

RE: 2008 Hyundai Accent GS (3dr)
 

The last Festiva was in 1993 (it was called the Aspire after that). It had a curb weight of 1797-lbs and a 63-hp 1.3L engine rated at 35/42 mpg (source).

The 2008 Accent has a curb weight of 2467-lbs and a 110-hp 1.6L engine rated at 27/32-mpg (source).

The Accent is 670-lbs heavier than the Festiva. That's like driving your Festivia around with three extra 220-lbs guys. I'll bet you wouldn't get 45-mpg in your Festiva with all that extra weight. Plus, the Festiva had a better fuel economy rating to begin with.

RE: 2008 Hyundai Accent GS (3dr)
 

I guess I'll continue with my plan of going to taller tires then.

RE: 2008 Hyundai Accent GS (3dr)
 

Taller tires will throw your speedo and odometer off. They will both be inaccurate and therefor, you won't know the true mileage.

RE: 2008 Hyundai Accent GS (3dr)
 

I know that. But if the degree of error is known then the actual mileage can be extrapolated.

Whast's the 14" tire width stock?

RE: 2008 Hyundai Accent GS (3dr)
 

Easy, I was just making sure you knew.


Width? I thought you wanted TALLER tires, not wider.

The factory 14" tires are 175/70-14. That tire has a 602 mm (23.7") diameter.

How much taller are you going to go? 2%, 5%, 10%. I highly doubt the small tire height increase that will fit will have a large difference in fuel economy.

RE: 2008 Hyundai Accent GS (3dr)
 

Well if I can fit a 16x7" rim on the car I would go to a 205/50/16.

I really am not a nitwit.

RE: 2008 Hyundai Accent GS (3dr)
 

The stock 175/70-14 tire has a 602 mm (23.7") diameter.
A 205/50-16 tire has a 612 mm (24.1") diameter.

That's a difference of 10mm (less than 1/2") or 1.7%. You think a 1.7% tire height increase will help fuel economy?

Let's see:
- with the factory tires in 5th gear, at 60-mph the engine was spinning at 2889 rpm
- with 205/50-16 tires in 5th gear, at 60-mph the engine will be spinning at 2841 rpm

That's an RPM drop of 48 rpm. Do you really think a 48-rpm drop is going to save fuel? Even if it did, you will lose any gain because you are now running a tire that is 1.2" wider and has more rolling resistance.

RE: 2008 Hyundai Accent GS (3dr)
 

So just how much more is the rolling resistance all knowing one? A shorter sidewall hass less flex and you don't even know what kind of tire I'm planning on using.....

What are the OEM wheel widths and offset?

RE: 2008 Hyundai Accent GS (3dr)
 

Generally, the taller and narrower the tire, the less rolling resistance it has. As the tire gets shorter and/or wider, the rolling resistance goes up. Again, those are general statement. There are always exceptions. Plus, you have the factor in the added weight of a larger wheel and tire.

There are two 14" steel wheels listed for the 2008 Accent:
- 14 x 5.5 with an offset of 46mm
- 14 x 5 with an offset of 39mm

I believe the first wheel (the wider one) comes with a 185/65-14 tire while the second wheel comes with the 175/70-14 tire. You will have to physically check your tires to see which you have.

RE: 2008 Hyundai Accent GS (3dr)
 

I found this post v. interesting since I havea 1988 Ford Festiva & my wife has a 2008 Hyundai Accent. Here are some real-world comparisons.

For decades my Festiva has been the best MPG car I ever had & I still drive it. It averaged 45MPG for a decade. No, it didn't hit 45MPG loaded down with cool weather clothing, camping, camera, binocular & spotting scope optics & other gearfor a month ofadventuroustraveling. Itturned in 53+MPG on a thousand mile leg & 47 MPG overall which included climbing 12,000 foot mountain passes. Not too bad for an EPA rated 42MPG highway.

As for my wife's Accent, she averaged 32+MPG thru a long cold winter & stop & go highway commuter traffic. I thot Accent had more to give & my wife let me loose with Accentfor 3 daytrips over 1400, 3000, 4000, & 5500 foot mountain passes. Accent got 41.5, 42.6, & 45.2 MPG. Not too bad for an EPA rated 32MPG highway.

All in all, I love my Festiva & I suddenly love the Hyundai Accent!

RE: 2008 Hyundai Accent GS (3dr)
 

^^^ There is a lot of talk about how great fuel economy cars have now but in reality, they could be MUCH better if the cars were lighter. Your Festiva is a great example of cars that got equal or better mileage than a Hybrid Prius. Weight is the key. Today cars have multiple airbags, ABS brakes, traction control, A/C, etc.All those things add weight. Imagine the mileage the Accent could get if it was 700-lbs lighter (the same weight as the Festiva).

RE: 2008 Hyundai Accent GS (3dr)
 

Threereasons I got such good Accent MPGis thatour Accent doesn't have ABS, traction control or a/c. A fourth reason is the Accent has a much lower coefficient of drag than the Festiva(0.31 vs. 0.37). Afifth reason is the technology is 20 years newer.

RE: 2008 Hyundai Accent GS (3dr)
 

Does your car have an ATX or MTX tranny?

RE: 2008 Hyundai Accent GS (3dr)
 

He said in a previous post that it's a manual:

https://www.hyundaiforum.com/fb.asp?m=15233

RE: 2008 Hyundai Accent GS (3dr)
 

So what are the gear ratios and FD for the ATX?

RE: 2008 Hyundai Accent GS (3dr)
 

5-speed manual:
- 1st = 3.615
- 2nd = 2.053
- 3rd = 1.370
- 4th = 1.031
- 5th = 0.837
- Reverse = 3.583
- Final gear ratio = 4.056

4-speed auto:
- 1st = 2.846
- 2nd = 1.581
- 3rd = 1.000
- 4th = 0.685
- Reverse = 2.176
- Final gear ratio = 4.041

RE: 2008 Hyundai Accent GS (3dr)
 

Do you have the ratios for the 2009 models?

RE: 2008 Hyundai Accent GS (3dr)
 

They are the same 2006-2009 (Accent).