Chevrolet Optra [Merged]

[Mamar]

guys may VGis na ang optra ah! ang nakita ko lang na difference is ung dashboard pareho na sya dun sa wagon na bilog ung aircon vents! anu kaya difiference sa engine, higher HP kaya or mas matipid sa gas?? sana pwede upgrade ung mga lumang optra para maging VGis din!

[kmo]

depends on the car ata yan e .... on my xtrail, it lights up when it nearly touches the E mark, on my altis, medyo 1/4 pa umiilaw na, on the rav4 pag nasa E na tsaka iilaw pero it has still s couple of liters left mga 10 or less siguro on the bmw, mga 1/5 tsaka mag ilaw na malaki e hehe so no missing na iilaw

[Mamar]

Guys anu ba pinag kaiba ng 1.8L at 1.6l engine ng optra?? kasi may frend akong na binebenta optra nya na 1.8 A/T eh parang gusto ko gawin kunin ung engine nya kasi sakin 1.6 na M/T! pwede kaya yun ang gagawin ko engine lang kunin ko tapos tranny ko gagamitin para maging manual ung 1.8 tapos sa oto naman nya ililipat ung 1.6L na engine! so pag ginawa ko un malamang yung ecu nung 1.6 parin kelangan ko gamitin kasi pang matic ung ecu nung 1.8!

Anu tingin nyo guys possible kya tong convertion na iniisip ko??? Hinde kaya masyadong mahirap ung convertiion??

[niky]

The 1.8 and 2.0 engines don't really have that much more power than the 1.6 (from feedback abroad).

For all the trouble you'd be going to, it might be easier just to turbocharge your 1.6...

[Mamar]

Grabe kasi pag ka underpowered nung 1.6 eh kahit nka IHE nako sa optra ko! 108hp ung 1.6L nasa 125hp naman ung 1.8L at syempre mas malik potensial nung 1.8L engine!
Pero niky wala naman convertion na gagawin dun diba kasi pareho lang naman sila displacmemt lang naman diff. nila!

[OTEP]

I see some brand-new looking Optra units parked at the Rapide (?) near Ortigas. Are those brand new units?

[niky]

You have to check on Chevy/Daewoo sites and make sure they're from the same engine family.

For example, with the Lynx, the 2.0 is a different engine from the 1.6... completely... nothing is interchangeable. Same with the Civic... the 1.8 and 2.0 are completely different engines.

If they're the same engine family, with the exact same mounting points and accessories, and share the exact same ECU connections, this could work, except your friend would have a 1.6 AT with a non-AT box.

What IHE have you got? I could help you determine where you could get more power... ...usually, it's a matter of restricted breathing. You could also try another ECU reflash (not at the factory) to work on your timing and fuel maps, to optimize your engine... but that's a lot of expense for little result.

But then, there's always turbo...

[Mamar]

OT: hahaha... tlagang dinedemonyo moko mag turbo ha! malapit nako bumuo ng turbo pero nde sa optra sa bago kong project car!

Ok back to topic bale hinde kami mag palit ng ecu gamitin kong ecu is ung pang 1.6 na manual kasi nde ko pede ilagay ung ecu ng matic sa manual eh or vice versa. Uumm... medyo magulo na to ah, engine lang pag palitin dude wala na iba para walang maging convertion un eh kung same engine nga sila!

OT: sa ECU reflash naman may tropa akong nag proprogram ng mga ecu un nga lang honda lang ginagawa nya, sana kaya nya din kalikutin ung pang optra!

[niky]

I really don't know. I can't find anything about it online.

Personally, I'd be more comfortable with finding a way to stroke your 1.6 to a higher displacement, as I don't know if the 1.6 ECU has the proper fuel maps to run the 1.8... there really isn't much tuning information on the Optra series engines.

Redo your IHE... maybe you're piped too big or have some restrictive crushed bends. You could also port and polish some to get a little more "oomph".

[ale828]

The problem with the Optra is its heavy body, but a turbo or supercharger would solve some of its lack of power but not the heavy body. That heavy body will always hamper its performance. I suggest your better off getting another car with a lighter body, maybe a toyota vios, honda civic, ford lynx RS or something else.