Dyno result sr20ve, 2.0L na

Discussion in 'Car Talk' started by brokenjars, Jun 9, 2019.

  1. Izso

    Izso Boooooossst
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    I think since your engine has cam profiling the dip is normal. That kinda power on a stock NA engine is pretty healthy. Looks like you did a good job overhauling. Whats next on the engine list?
     
  2. brokenjars

    brokenjars 5 Year | Silver

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    I'm going to try improve my fc. Currently only at 7.5-8.5km/L. Change spark plug, spark plug cable, clean air filter and tuning already. I guess the next obvious thing is changing the oxygen sensor. So i bought one from china since i could not find compatible oxygen sensor at the spare part shop, and just fixed it yesterday. Will pump a full tank and monitor from today. Btw the sensor only costs me rm35 lol.
     
  3. gunnerzz

    gunnerzz 5 Year | Silver

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    Dont forget to change the fuel filter too.

    On oxygen sensor, its almost universal.
    Older model have 2 wire for reading only. Newer model have 4 wire for heater as O2 sensor needs to be so hot before it can provide the most accurate reading.

    Another way to improve fc and at the same time improve aircond cooling is to wrap the cold aircond pipping in the engine bay. Some here did that including me. Superlon is cheap. Your aircons will gets cool quicker, your compressor runs at shorter time which help reduce fc.
     
  4. brokenjars

    brokenjars 5 Year | Silver

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    Mine is a 3 wire type. Where to buy the superlon? Maybe i will try it. How much improvement did u get?
     
  5. gunnerzz

    gunnerzz 5 Year | Silver

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    u can try ask hardware shop. most shop carry the round type for home aircond usage. i buy the sheet type as i used it for other purpose too.

    I can confirmed the compressor runs at shorter period and the aircond cools quicker.

    How much improvement?
    Its been a while (years maybe) since i calculate my fc as now i mostly ride and does not fill up full tank anymore when driving. I just used benchmark of RM50 should get me above 300km. If not then something is wrong or i drive like a lunatic. Car is BLM auto.
     
    #25 gunnerzz, Jun 19, 2019
    Last edited: Jun 19, 2019
  6. Izso

    Izso Boooooossst
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    O2 sensor shouldn't be too much trouble if it's new. MAF/MAP sensor and fuel filter might be worthwhile changing to new as well. The SR20 uses COP I guess? Then better COPs?
     
  7. Izso

    Izso Boooooossst
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    actually there's damn a lot of things you can do to improve fc.

    1. Reduce overall engine load like what Gunnerz suggested. Aircon compressor kick. Check that your grounding is all good. etc.
    2. Lighten your car interior, remove heavy-ass subwoofers and spare tyres (replace with patch kit) and skip all the downforce mods.
    3. Fuel filter, ignition, fueling, air-intake - all these need to be in optimum condition.
    4. Spark - some say that bigger spark will help. I personally don't really know. Kits like those that increase spark help make things run smoother. Back then with my wira I tested and share in ZTH this spark plug cable that increased the spark and that seemed to work wonders with my power which indirectly helped my FC.
    5. Put a brick behind the accel pedal. Driving smoothly and non aggressively improves FC and keep revs below 3k rpm. You want FC you gotta live with the boring.
     
  8. brokenjars

    brokenjars 5 Year | Silver

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    Will changing thr maf sensor really help? What is a COP?
     
  9. brokenjars

    brokenjars 5 Year | Silver

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    Your blm is quite good. I always heard of horror stories regarding the blm auto
     
  10. lsm1991

    lsm1991 Senior Member
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    cop = coil on plugs, didnt know the sr20 had those
     
  11. 6UE5t

    6UE5t Senior Member
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    Use lightweight rims.
     
  12. gunnerzz

    gunnerzz 5 Year | Silver

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    I've edited my post as there is typo there which might confused u.

    My BLM is auto and it can go above 300km with RM50. Anything below 280km indicate something wrong if i drive as usual. So far i have never been able to reach 14km/l on it. Considering its a basic plain engine, thats a not to bad figure. My waja with single VVT is 14km/l anyday.
     
  13. brokenjars

    brokenjars 5 Year | Silver

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    The sr20ve 20v originally used coil on plugs. But mine has been modded to a distributor type..
     
  14. brokenjars

    brokenjars 5 Year | Silver

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    My friend had a blm before. Can hardly achieve your fc in penang traffic. His fc only average around 11km/L when new! And my another friend said his waja auto currently is at 8km/L.
     
  15. sweelt

    sweelt Well-Known Member

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    ehh u from penang ?
     
  16. vr2turbo

    vr2turbo 5 Year | Silver
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    I carry my tool box, parts, bulbs, extra water bottle, etc, etc in my boot........lol
     
  17. brokenjars

    brokenjars 5 Year | Silver

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    Yup I'm a penang lang, so to speak.

    Btw my car current has a squeaky clutch pedal. Applying white lithium grease at the push rod at the clutch pedal only helps a tiny bit. Any reliable mechanic to recommend in Penang?
     
    #37 brokenjars, Jun 19, 2019
    Last edited: Jun 20, 2019
  18. brokenjars

    brokenjars 5 Year | Silver

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    Same, I carry all my tools too. A full toolbox with allen key set, screw drivers, bots and nuts, electrical tester, tapes, wrenches etc. I also carry a full set of spanners, complete tools to change tires, big scissor jack, air pump, spark plug remover tool, spark plug puller, tire gauge etc. lol
     
    vr2turbo likes this.
  19. vr2turbo

    vr2turbo 5 Year | Silver
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    So I am not alone......hahhahaha
     
  20. vr2turbo

    vr2turbo 5 Year | Silver
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    Sometimes can be the spring, and worse case the internal part, meaning the rubber seal rubbing against the sidewall. The squeak sounds when press or release or both action?
     

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