Dyno result sr20ve, 2.0L na

[Izso]

I tried two dyno, both dynoject.
One from Mpower, got 160 whp with worn engine after tuned.
After overhaul, when to D4 racing, first run without tuning I got 165 whp. Which means i gain 5 hp after overhauling my engine, which is logical. Finally after tune on the second dyno, the results are 180 whp.
Also a myvi 1.5L got 80 whp, factory rating 102 hp at the D4 racing dynojet.
So i think dynojet is quite accurate at the least.

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?

 

[brokenjars]

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?

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.

 

[gunnerzz]

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.

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.

 

[brokenjars]

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.

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

 

[gunnerzz]

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

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.

 

[Izso]

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.

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?

 

[Izso]

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.

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.

 

[brokenjars]

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?

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

 

[brokenjars]

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 mt benchmark of RM50 should get me above 300km. If not then something is wrong or i drive like a lunatic. Car is BLM auto.

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

 

[lsm1991]

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

cop = coil on plugs, didnt know the sr20 had those

 

[6UE5t]

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.

Use lightweight rims.

 

[gunnerzz]

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

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.

 

[brokenjars]

cop = coil on plugs, didnt know the sr20 had those

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

 

[brokenjars]

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.

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.

 

[sweelt]

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.

ehh u from penang ?

 

[vr2turbo]

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.

I carry my tool box, parts, bulbs, extra water bottle, etc, etc in my boot........lol

 

[brokenjars]

ehh u from penang ?

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?

 

[brokenjars]

I carry my tool box, parts, bulbs, extra water bottle, etc, etc in my boot........lol

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]

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

So I am not alone......hahhahaha

 

[vr2turbo]

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?

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?