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> Unichip vs. Custom Tune
zielritter
post May 21 2010, 06:46 AM
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Matt
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Well, after getting feedback from tuners and other forums I've posted on I've decided to scrap the ECU tune for the time being. Most everyone I've talked to said the bare minimum you need to get anything out of the tune is an I/H/E setup for an NA car.

I've got the intake and exhaust portion, and I went ahead yesterday and ordered the i30 header from sharkracing.com. For those who don't know, the i30sw is the Touring's European equivalent. The i30 hatch and sw wagon are identical under the hood given you shop for i30 parts fitting the 2.0L and not the 1.6L or CRDi engines we don't get. sad.gif

Anyways, after I install the header and o2 simulator I'll post pics and set up a garage on this site. I've been at Hyundaiforum.com for a while, but I like the feedback I'm getting here regarding performance parts. Maybe I'll stay a while. wink.gif


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streetfighterguy
post May 21 2010, 10:24 AM
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Well i have a header that i pulled off Ebay for about 120 dollars and you know what? It works great and i don't have issues with the O2 sensor after i welded the rear bung into place behind the new CAT.

Like the guys over at EXD were saying is if you want to buy the ECU for the NA system just get one that can be retuned for turbo later on the line if you want to take that route. You can build a motor anyway that makes you feel happy so just have fun with it as you go forward.


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zielritter
post Jun 6 2010, 01:24 PM
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I just installed my i30 4-2-1 header this weekend. Had to weld in the bungs for my two o2 sensors, and I purchased an o2 simulator (screw in "fouler" type) with 3 different inlets with varying diameters to choose from in order to fool the second (post former cat) sensor.

Everything fit perfectly and the new header is significantly lighter (and prettier) than the heavy cast manifold I removed. I got the dreaded CEL with the first size inlet I used, but I switched to another size and the CEL's been off since. Let's hope it stays this way.

On another note, my mpg's have shot up (with the CEL off) significantly with the header. On a 30 mile highway drive at 70mph I was getting 37+ mpg whereas I usually get between 33 and 34 on the same stretch. This was an unexpected, but nice, side effect.

Also, I'm definitely getting a 17in resonator put in next weekend to quell some of the raspiness on acceleration. After that I should be golden. Will take pics when I get back in town next weekend.


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Guest_XG0DZX_*
post Jun 6 2010, 08:40 PM
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Check with your tuner before buying any engine management system to see if they will actually install and tune it as i bought a unichip and the two authorized tuners wouldn't do it so i contacted the head office and they where no help either.
So if your not going to major mods maybe just a Digital Fuel Adjuster like http://www.jaycar.com/productView.asp?ID=KC5385

I was looking at something like the AEM Plug & Play piggyback Fuel and Ignition Controller (F/IC) kit ? http://www.aemelectronics.com/engine-manag...roller-f-ic-12/

This post has been edited by XG0DZX: Jun 6 2010, 08:46 PM
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zielritter
post Jun 7 2010, 11:57 AM
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QUOTE (XG0DZX @ Jun 6 2010, 09:40 PM) *
Check with your tuner before buying any engine management system to see if they will actually install and tune it as i bought a unichip and the two authorized tuners wouldn't do it so i contacted the head office and they where no help either.
So if your not going to major mods maybe just a Digital Fuel Adjuster like http://www.jaycar.com/productView.asp?ID=KC5385

I was looking at something like the AEM Plug & Play piggyback Fuel and Ignition Controller (F/IC) kit ? http://www.aemelectronics.com/engine-manag...roller-f-ic-12/


Man, that digital fuel adjuster is really inexpensive! does it actually work correctly for our car? I'm really not looking to go FI at any point so all I would be doing is fine tuning the AFR for my bolt-ons. This would be perfect for my application if it's functional. Anybody have any experience with it?


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Guest_XG0DZX_*
post Jun 9 2010, 08:10 AM
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QUOTE (zielritter @ Jun 8 2010, 12:57 AM) *
Man, that digital fuel adjuster is really inexpensive! does it actually work correctly for our car? I'm really not looking to go FI at any point so all I would be doing is fine tuning the AFR for my bolt-ons. This would be perfect for my application if it's functional. Anybody have any experience with it?

A guy on our aussie hyundai club swears by it http://www.hyperaustralia.com/forums/viewt...t=jaycar#p72057

QUOTE (zielritter @ Jun 8 2010, 12:57 AM) *
Man, that digital fuel adjuster is really inexpensive! does it actually work correctly for our car? I'm really not looking to go FI at any point so all I would be doing is fine tuning the AFR for my bolt-ons. This would be perfect for my application if it's functional. Anybody have any experience with it?



I'm looking at the AEM Plug & Play piggyback Fuel and Ignition Controller (F/IC) kit for my application but hav'nt received any replies from AEM
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zielritter
post Jun 13 2010, 03:17 PM
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Matt
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For anyone who is interested, I've uploaded some videos that let allow you to hear my current set-up. I know there aren't many, if any, Tourings in the U.S. with the modifications I have so let me know what you think. Hopefully, some time this fall I'll get a custom tune wink.gif

Exhaust Clip

Under hood shot


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Guest_XG0DZX_*
post Jun 15 2010, 07:43 AM
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Did you have cel codes when you got the extractors fitted ?
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zielritter
post Jun 15 2010, 10:17 AM
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Matt
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QUOTE (XG0DZX @ Jun 15 2010, 08:43 AM) *
Did you have cel codes when you got the extractors fitted ?


I purchased one of those mechanical o2 sensor foolers for the post-cat o2 sensor (basically like a spark plug fouler). It has three "jets" with three different diameters. The first one I tried gave me a CEL, but I switched to another size and have been fine for several days now.

I'll keep you updated if and when I get another code. Also, as a side note I've read that the second sensor only reports to the ECU if it thinks the CAT is broken or missing. In other words, the second sensor does not have an impact on the afr trims the engine uses.

I know that my mpg's didn't seem to take a dramatic drop when I got the CEL the first time around, which is to be expected if the ECU goes into open loop due to a primary o2 sensor malfunction. Just my observations, feel free to correct my understanding.


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Guest_XG0DZX_*
post Jun 16 2010, 07:05 AM
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We have just one o2 sensor here in Australia before the stock cat which I've had replaced with a hi flow cat , i got an error code after fitting my extractors previously 91 ron so i switched to 95 ron and the error code stopped
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