Just bought 06XRS last month

[ocioso]

So i decided to get rid of the celica gts and picked up a new XRS.

Though i havn't read much about it, i just did through other posts and learned a lot.


I've just been using regular gas. Not premium. Have i been killing my engine and filters? Second. Just picked up some new springs. going for a 2inch drop. Should i worry about my shocks, will they be able to handle the drop, i know it's not a standard 1 / 1.5 drop.


And uh..That's about it i guess. I'm good with cars, i just don't know much about the matrix.



P.S I just joined the forum.

[xrs22]

yes, use premium other wise it'll run shitty. run the lower octane out and fill up w/ 91 oct and run through a 1/4 or less tank then disconnect the battery and that'll reset the ecu. After that it should run the way it's supposed to. You can run the 2" drop but you'll still be using your stock shocks which will end up goin' bye bye in the long run. If you upgrade the shocks that you can run whatever you want. I don't think they have a cai for the '06 only short ram and everthing else is pretty much the same.

[ocioso]

Originally Posted by xrs22

yes, use premium other wise it'll run shitty. run the lower octane out and fill up w/ 91 oct and run through a 1/4 or less tank then disconnect the battery and that'll reset the ecu. After that it should run the way it's supposed to. You can run the 2" drop but you'll still be using your stock shocks which will end up goin' bye bye in the long run. If you upgrade the shocks that you can run whatever you want. I don't think they have a cai for the '06 only short ram and everthing else is pretty much the same.

What would you reccommend for shocks. Unlike the celica, i'm not going to use TRD parts this time around. They're great products and did wonders for me especially for shows, but i'd like to take a different road this time.

[ksbrace]

Using regular in a modern car that calls for high octane doesn't "hurt" anything except performance. The engine adjusts to it. At the first sign of light pinging, perhaps even before you hear it, the engine will do two things in some combination: It will retard the spark, and it will make the fuel/air mixture richer, both of which quickly eliminate the pinging, but also hurt your performance and fuel economy slightly. Now, the 1ZZ engine (and any other engine designed for 87 octane) will not benefit at all from higher octane fuel, because the compression isn't high enough to cause the pinging in the first place, but your higher compression 2ZZ engine was almost certainly "backing off" to adjust to the 87. It should quickly readjust to higher octane fuel when you put it in (but I don't know if it happens over a period of minutes or a whole tank for this car).
Here is a wikipedia entry describing octane ratings and how cars adjust:
http://en.wikipedia.org/wiki/Octane_..._octane_rating

[mistamatrix]

Welcome to TN, ocioso.

What springs did you get? I've had my Hotchkis springs on now for almost 3yrs and my stock springs are still going. Not sure how much longer they can last but it's all good. I've got a contingency plan. I have a spare used set of OEM springs. Unfortunately, there aren't any aftermarket shocks available for the Matrix. You'd have to go with a set of TRD or Tein coilovers.

[ocioso]

Originally Posted by mistamatrix

Welcome to TN, ocioso.

What springs did you get? I've had my Hotchkis springs on now for almost 3yrs and my stock springs are still going. Not sure how much longer they can last but it's all good. I've got a contingency plan. I have a spare used set of OEM springs. Unfortunately, there aren't any aftermarket shocks available for the Matrix. You'd have to go with a set of TRD or Tein coilovers.

Tein's. They were some sort of special order. Their average drop is like 1.5 1.3, these are 2.0 solid. So it says. I won't know till i put 'em on.

[357wheelgunner]

Tiens have a really soft squishy spring rate and give a bouncy bouncy ride. TRD chose Eibachs to go with for the TRD line because they have a stiffer spring rate and won't be as hard on your shocks.