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KL-ZE Fuel economy in MX3

Posted: June 11th, 2003, 4:16 pm
by Gro Harlem
What kind of fuel economy can I expect with a KLZE in my 93 GS 5spd? What have you guys with this swap been getting?

Re: KL-ZE Fuel economy in MX3

Posted: June 11th, 2003, 10:57 pm
by MrMX3
I got 10.4mpg last summer. It was HORRIBLE. But this year I got new plugs, wires, o2 sensors, and the proper ecu so hopefully that'll fix that!

Re: KL-ZE Fuel economy in MX3

Posted: June 11th, 2003, 11:33 pm
by mitmaks
10.4?????????!!!!! you better be pushing around 300whp with that kind of mileage. even dodge charger gets more than that and its heavy V8 beast.

Re: KL-ZE Fuel economy in MX3

Posted: June 11th, 2003, 11:45 pm
by Zoso124
As odd as it may sound most MX-3'ers who do the swap tend to get better gas mileage then they did with the 1.8L.

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 12:24 am
by C-MX-DA3
i think i only get 140 miles full tank, which is horrible, maybe i need to get the klze ecu. anyone selling it? i need one right away.

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 12:51 am
by Buff1110
rite now im getting like 200miles b4 the lite comes on. but i get on it all the time and shift hard. im running ze,ze ecu, clogged cat, leaky headers.

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 2:02 am
by lazzyie
Ecu makes all the difference man. Went from 15 to 20 mpg in town :) . I sell ecus :shrug:

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 2:34 am
by killerpickle
i get 27 mpg highway consistantly and accurately. 440 km a tank +<p>2.5 a spec ecu and 2.5 vaf.<p>i got 16 with the 2.5 ecu and 1.8 vaf

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 4:43 am
by Gro Harlem
yeah i read that if you use the k8 ecu it gets ****ty mileage.<p>I plan on running a KLZE with k31 cams, curved neck IM, 10:1 compression and the KLZE ecu. <p>I deliver pizzas so i don't want hte mileage to be too horrible, but i don't think it would be that bad since the motor is moving a less heavy car than it was designed for.<p>The stock ratings for the KLZE are 21/26.....i'd be happy getting low 20's city and I don't drive hard when i'm normally driving...<p>
Thanks for your input!

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 4:44 am
by Gro Harlem
BTW: Layzzie: IM me when you see me online..need to talk about the motor and ecu you are getting me. I need to know a general timeframe b/c i think i alrady sold my GTR motor :)

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 5:44 pm
by C-MX-DA3
did anyone ever try running with the k8 ecu and 1.8 vaf. im using the a spec 2.5 ecu from probe gt with the 1.8 vaf, maybe this is what causing the car to burn so much gas. any help and opinion would be great. thanks

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 7:02 pm
by Nd4SpdSe
whats involved in changing the 1.8vaf to a 2.5?

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 10:47 pm
by C-MX-DA3
this really sucks i just put $10 gas and its already empty, i only ran 50 miles. does anyone else have this problem with there ze.

Re: KL-ZE Fuel economy in MX3

Posted: June 12th, 2003, 11:58 pm
by lazzyie
<blockquote><font size="1" face="Verdana, Arial">quote:</font><hr>Originally posted by C-MX-DA3:
did anyone ever try running with the k8 ecu and 1.8 vaf. im using the a spec 2.5 ecu from probe gt with the 1.8 vaf, maybe this is what causing the car to burn so much gas. any help and opinion would be great. thanks<hr></blockquote><p>That is your problem get a 2.5 liter air sensor, KL-02 is the correct number I think.

Re: KL-ZE Fuel economy in MX3

Posted: June 15th, 2003, 5:03 pm
by Cage
I have a KLZE W/ J-spec ECU, 1.8 VAF. I get 254-266 Miles a tank, Gas Light on to Gas Light on with 93 octane gas, all highway @ 70 miles per hour. New O2's Mx-3 5 speed.<p>Cage