Mx3 1,8 V6 to 2,5 V6

[mikeinaus]

running no o2's will make your car misfire and run like crap. that is your main problem atm. with no o2's the car runs on a basic tune to avoid any engine damage and reduces power and fuel milage.

your current ecu is tuned for a 1.8l not a 2.5l. using the proper ecu will give you the correct vris points and fuel maps. i highly doubt your putting 180hp to the wheels with your setup. a properly tuned system with a motor in great condition, exhaust and intake would be lucky to make 180hp at the wheels.

using a 2.5l klde airflow sensor AND ecu will give you better fuel maps but your vris points will still be off. like i said in the first reply you ideally want a probinator chip, but any combination will work.

to be honest most people on this forum are dicks in certain situations. if you want help you need to teach yourself. if and when you cant find the information you need, you can make a post and people will be willing to help. if its something thats been asked a million times and is easily accessible there going to flame you. if your arrogant and make cocky replies people loose respect for you and just choose to no longer participate in your threads. that being said: read the FAQ's, Search (google is an awesome tool) and teach yourself as much as you can.

[MrMazda92]

I haven't even put an airfilter on it.

I know how hard it can be to find time, but I can not stress the importance of this enough, filters can be extremely cheap, so just get a cheapie to hold you over until you can run the setup you want longterm!

I have no oxygen sensors as well.

This takes a little more time, but if time is the big issue you could always pay a shop... It's more expensive that way, but cheaper than complications that lead to mechanical failures.

I am eventually going to get a megasquirt and widebands...and airfilter.

Good goals, I hope you'll be able to get them going quickly, I honestly do!

[Pritchett]

180hp to the wheels?? I never said that. I was talking bhp. I know the 1.8l ecu isn't tuned for a 2.5l engine, it's telling the injectors that are 40cc bigger to pulse for the same length of time...resulting in a much richer mixture. I know all of the things I'm doing is wrong and stupid, however widebands and a PNP megasquirt and gonna run me a grand +, the dyno time and tune will run another 500 bones. Reality is..I've spent close to 3,000 including tools that I wouldn't have gotten otherwise. I have a family and I can't justify another 1000+ this year with christmas so close.

I have a pretty good ear and the motor is running good. I can spin the tires in 3rd at a 30kmph roll with a little rev and dump of the clutch. That might sound harsh but it isn't, cause the harder I am on this clutch the better it engages. It doesn't like to be babied at all. Thats telling me there's power, the k8 could barely do that in 1st, albeit at a little slower of a roll. I wish I had someone here with a mx-3 KL to compare it too. Maybe I'm dead wrong but when I have to feather the throttle to prevent wheel spin...

Thanks for all your warnings and input, the car is going up for the winter very soon however. I just wanted to let the OP know what my setup was and how it was performing for me.

[Rallebabz]

So you just put a 2,5 instead of standard 1,8 with 1,8 ecu and mass flow sensor?

[Pritchett]

Yes, the only thing I changed was the engine. Everything else is from my stock 1.8l. Well I changed out the manifolds for headers, but it would still run fine with the manifolds and stock exhaust...although it is more restrictive and you will lose a little power from it. My first swap I used the manifolds and stock exhaust, and intake...if it wasn't for the sludge it would have ran good, cause it did till it jumped it's timing....

[Rallebabz]

What Sound very good.

Is it the timing on the ignition i have to change?

[wytbishop]

Ralleballz...this is literally the easiest engine swap in the entire tuner car community.

-buy KLZE engine
-remove K8 engine
-install, distributor from K8 onto ZE. There is no need to change the timing, just take the one that came with the engine off and put your K8 one on.
-install ZE in your car.
-if the ZE you bought came with the air intake system, don't use it. Use your existing JE50 mass air flow sensor.
-if you don't have anything better, you can use the K8 ECU. If you have the option a K8 ECU with a probinator chip is better or a stock ZE ECU (KL31 or KL36 ECU) are also a good option.
-if you have the money, replace the stock exhaust manifolds with a tubular style header and have the exhaust system replaced to fit ($300-500 depending on what things cost where you live).
-if you have the money replace as many of the used accessories on the ZE as you can: water pump, oil pump, timing belt/idler/tensioner, spark plugs and wires...all available on ebay at reasonable pricing.

If you have specific questions they have already been answered so see what you can find before posting...but we will help you if you can keep your cool.

Charlie

[Rallebabz]

Thank you

[Daninski]

Its hard to find out what to dó SBS what i have to buy to make it work when i dont understand one thing of what he write. I dont know what a kl35/36 EMC is and i dont know what a je50 is

When I first decided to get back into the automotive scene a few years ago after being out of it since the 70's I was where you are so, I read and researched and read some more. If you don't educate yourself first your doomed to fail. Read through some of our posts, Google the terms your not sure about like, ECU, VAF/MAF, Oxygen Sensor, fuel management, and on here you can start here, http://www.mx-3.com/phpBB3/viewtopic.php?f=23&t=34783. I read posts like that over and over again until I understood every word of what they where talking about.

Remember GrassHopper, the wise man wipes his azz after he sheets not before.

[Nd4SpdSe]

Its hard to find out what to dó SBS what i have to buy to make it work when i dont understand one thing of what he write. I dont know what a kl35/36 EMC is and i dont know what a je50 is

When I first decided to get back into the automotive scene a few years ago after being out of it since the 70's I was where you are so, I read and researched and read some more. If you don't educate yourself first your doomed to fail. Read through some of our posts, Google the terms your not sure about like, ECU, VAF/MAF, Oxygen Sensor, fuel management, and on here you can start here, http://www.mx-3.com/phpBB3/viewtopic.php?f=23&t=34783. I read posts like that over and over again until I understood every word of what they where talking about.

Remember GrassHopper, the wise man wipes his azz after he sheets not before.

Well put Dan, well put! If you don't understand what an ECU is, and you can't reference part numbers like KL31, KL36 or JE50, swapping a motor is going to be WAY over your head. You need to learn to crawl before you can walk, but personally, Dan said it way, way better! Lol.

I've said it before and I'll say it again. It seems that the newbies that come on here are asking for literally for someont to talk their hand and guide them the entire way while they make no effort. I persoanlly like to help those who help themselves. There are things that I understand are harder to find than it seems (the search on here can be picky on what should be simple searches), but even tho we're reading text on a computer screen, we CAN read between the lines and know if that person made a valid attempt at trying to get the information they're looking for. It's easilly reflected in what you say and the attitude that you portray in your topis and your responces.

[Ryan]

Aaand this dude didn't.

But he's on his way now

[Nd4SpdSe]

But he's on his way now

With a little bit of tough love

[MrMazda92]

180hp to the wheels?? I never said that. I was talking bhp. I know the 1.8l ecu isn't tuned for a 2.5l engine, it's telling the injectors that are 40cc bigger to pulse for the same length of time...resulting in a much richer mixture. I know all of the things I'm doing is wrong and stupid, however widebands and a PNP megasquirt and gonna run me a grand +, the dyno time and tune will run another 500 bones. Reality is..I've spent close to 3,000 including tools that I wouldn't have gotten otherwise. I have a family and I can't justify another 1000+ this year with christmas so close.

I have a pretty good ear and the motor is running good. I can spin the tires in 3rd at a 30kmph roll with a little rev and dump of the clutch. That might sound harsh but it isn't, cause the harder I am on this clutch the better it engages. It doesn't like to be babied at all. Thats telling me there's power, the k8 could barely do that in 1st, albeit at a little slower of a roll. I wish I had someone here with a mx-3 KL to compare it too. Maybe I'm dead wrong but when I have to feather the throttle to prevent wheel spin...

Thanks for all your warnings and input, the car is going up for the winter very soon however. I just wanted to let the OP know what my setup was and how it was performing for me.

1st, my K8 will spin my tires in 2nd if I dump it, haven't tried 3rd...

2nd, I'll send you a used cone filter for shipping cost and no more if you are willing, simply because the engine deserves it, and I understand how tough times can be. Chances are the filter needs a cleaning, but it beats not running one right? PM me if you're interested.