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> Mods to increase gas milage/performance 08Elantra
CRF450Jim
post Dec 31 2007, 10:22 AM
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Just bought an 08Elantra and am looking for mods that increase gas milage and performance. Any suggestions?


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ricerrx7
post Dec 31 2007, 10:24 AM
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Not too much out there for your car yet.


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QUOTE (doc1987 @ Aug 29 2007, 02:33 PM)
call me a perfectsiotist but i...
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trololololo
post Dec 31 2007, 03:13 PM
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k&n air filter.

tires at proper pressure and aligned...

lowering springs (someone claimed better mileage due to less drag)

your car is too new to recommend anything else in good conscience.


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Oh no, I'm so sorry... the correct answer is The Moops.

The packaging clearly stated '100'. I'm short ONE luft balloon.
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cclngthr
post Dec 31 2007, 04:08 PM
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QUOTE (Cite 3 @ Dec 31 2007, 12:13 PM) *
k&n air filter.

tires at proper pressure and aligned...

lowering springs (someone claimed better mileage due to less drag)

your car is too new to recommend anything else in good conscience.


Regarding alignment on the HD. The ONLY adjustment is toe on the rear and this may pose a issue if the camber setting is not in spec. With lowering springs, you won't be able to get the alignment within spec unless you replace the upper control arm in the rear end.

I'm not so sure how that increases fuel mileage.

Easy on the right most pedal is the best bet for mileage.


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MidnyghtHD
post Dec 31 2007, 04:23 PM
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Welcome to the club. As for the HD there most all available mod parts are in Korea still and not available in the states. There are a couple of good sites in two posts you should be able to find in search. I would post them but can't remember right now and I am heading back to work.


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Modificate: The act of replacing or adding a part that required moding or custom fabrication and wasn't available for purchase at a store.
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IRUN619
post Sep 2 2009, 02:02 PM
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I just called the service department in my area and they told me that the Elantra HD's already have iridium plugs in the car. They couldn't tell me what brand. I'm sure that it couldn't hurt to make sure that they are the NGK iridium IX (which is what I will do when I get around to it) and change over the wires to either NGK or MSD. Of course if you go that route, a MSD ignition box couldn't hurt but I priced them out at PEP Boys for about $249.00 USD this will ensure the cleanest burn for your car. The K&N funnel air intake will save gas as well but someone already mentioned that.

If you want to go extreme gas saver mode (not recommended unless you're on the drag strip with anything over $10,000 at stake) then you gut the interior (do everything mentioned and remove the passenger and back seats, carpet & floor mats, spare tire, and change your hood to carbon fiber and buy bigger rims and tires and make sure they're inflated to the max allowable pressure and change out the drivers seat to a lightweight racing seat and buy a momo steering wheel and put yourself on a diet to shed as much weight as you can aka anorexic mode.)


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2009 HD GLS Black - I really don't know what I'm doing, I'm just adding & swapping parts that work.
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Tom06
post Sep 2 2009, 03:00 PM
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Just as an FYI, his post was from 2007.

I would also be careful about inflating tires to the maximum pressure that the tire can handle. They should be less, and closer to the amounts listed on the car, i.e. somewhere in the 30s PSI.


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"Last of the XDs."
2006 GLS, manual transmission, aftermarket wheels, aftermarket head-unit.
Future mods are cancelled so that I can save up for a house and my next car.
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IHeartMyRedCar
post Sep 3 2009, 08:47 AM
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wow old topic coming back. i drive a ton of highway. i kept my stock tires at 36-37psi


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JedimanGLS
post Sep 3 2009, 09:32 AM
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Proper inflation, a good air filter replacement, and don't speed.


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2005 Silver and blue Elantra GLS
114k miles now...at least 175k by the end of 2010!
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silet
post Sep 3 2009, 09:45 AM
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QUOTE (IRUN619 @ Sep 2 2009, 03:02 PM) *
I just called the service department in my area and they told me that the Elantra HD's already have iridium plugs in the car. They couldn't tell me what brand. I'm sure that it couldn't hurt to make sure that they are the NGK iridium IX (which is what I will do when I get around to it) and change over the wires to either NGK or MSD. Of course if you go that route, a MSD ignition box couldn't hurt but I priced them out at PEP Boys for about $249.00 USD this will ensure the cleanest burn for your car. The K&N funnel air intake will save gas as well but someone already mentioned that.

If you want to go extreme gas saver mode (not recommended unless you're on the drag strip with anything over $10,000 at stake) then you gut the interior (do everything mentioned and remove the passenger and back seats, carpet & floor mats, spare tire, and change your hood to carbon fiber and buy bigger rims and tires and make sure they're inflated to the max allowable pressure and change out the drivers seat to a lightweight racing seat and buy a momo steering wheel and put yourself on a diet to shed as much weight as you can aka anorexic mode.)


You don't need an MSD ignition box for cars with distributeless ignition systems.


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05 Tidal Wave GLS 5 spd
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IRUN619
post Sep 3 2009, 11:50 AM
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Oh yeah. I guess I still keep reverting back to my old Honda.


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2009 HD GLS Black - I really don't know what I'm doing, I'm just adding & swapping parts that work.
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RyanLJS
post Jul 31 2014, 02:47 PM
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Has anyone heard anything about the HD ecu overheating due to removing the old airbox for a new intake? I know a few members have done this to there Elantra Tourings like CRF450Jim did who had good results over 7000 kms but I was wondering if anybody else has longer test results?


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