Problem with performance

[mgbk]

Hi Bros,

I drive a hyundai coupe and i noticed my top speed could only reach 130 max. The engine is pretty old with over 200000km done. Need some advice on how to increase the top speed as i have the need for speed. Would overhauling my engine help? As it is a pretty expensive procedure, i am hoping a cheaper alternative would help like maybe, A SAFC or e-manage, simple tuning or maybe port and polish. The engine is running smooth but the top speed is just devastating. I could use some advice on what to mod in my car.

Current mods to car
5zigen exhaust
4-2-1 extractor
Apexi carbon fibre air filter
Thermal wrap
Zaptor voltage stabilizer
Custom nylon bushing
Gab hi-lo suspension
17" rims

Please post any advice regarding my car. Thanks.

 

[LittleWhiteWagon]

Woah :O
130kmh or mph?

 

[tofu_manic]

Hi Bros,

I drive a hyundai coupe and i noticed my top speed could only reach 130 max. The engine is pretty old with over 200000km done. Need some advice on how to increase the top speed as i have the need for speed. Would overhauling my engine help? As it is a pretty expensive procedure, i am hoping a cheaper alternative would help like maybe, A SAFC or e-manage, simple tuning or maybe port and polish. The engine is running smooth but the top speed is just devastating. I could use some advice on what to mod in my car.

Current mods to car
5zigen exhaust
4-2-1 extractor
Apexi carbon fibre air filter
Thermal wrap
Zaptor voltage stabilizer
Custom nylon bushing
Gab hi-lo suspension
17" rims

Please post any advice regarding my car. Thanks.

one of the things u can do is a compression test to check the state of the engine

 

[DanzEterna]

is either done full overhaul on the engine or
plonk in VR4 engine.....lesser headaches...

 

[E-Tech]

Woah :O
130kmh or mph?

LOL...
LOL...
If 130mph= 208km/h I don't think he would ask for helppppppppppppppppppp.

Anyway 130km/h with ALL those mod is sad...very sad.
Surely something is wrong with the engine.
Pls first do compression test as advise! wet and dry..
It will roughly tell you what is the problem...

"badan tak sihat" where can lari kuat kuat...
makan maajun ke, tongkat ali ke will not help. (e-manage/safc)
Make sure body is fit first.... clear?

---------- Post added at 09:39 PM ---------- Previous post was at 09:34 PM ----------

Hi Bros,

I drive a hyundai coupe and i noticed my top speed could only reach 130 max. The engine is pretty old with over 200000km done. Need some advice on how to increase the top speed as i have the need for speed. Would overhauling my engine help? As it is a pretty expensive procedure, i am hoping a cheaper alternative would help like maybe, A SAFC or e-manage, simple tuning or maybe port and polish. The engine is running smooth but the top speed is just devastating. I could use some advice on what to mod in my car.

Current mods to car
5zigen exhaust
4-2-1 extractor
Apexi carbon fibre air filter
Thermal wrap
Zaptor voltage stabilizer
Custom nylon bushing
Gab hi-lo suspension
17" rims

Please post any advice regarding my car. Thanks.

Oh just notice another things.... you are running with 17" rims..
What is the tires spec you are using?- it will "slow' down the meter reading.
You could actually be doing faster then 130km/h...

Pls tell me you original tire specs.. e,g 195/55 15"
Pls tell me your currrent tire specs..

I will recalculate your actual speed best maybe.. case 143km/h. TQ

 

[veilsideboyz]

get a speed cut

 

[E-Tech]

get a speed cut

Sure onot?:hmmmm:
If speed cut and settle wan...
But if ring or valve already koyak... difficult lah...

 

[tofu_manic]

is either done full overhaul on the engine or
plonk in VR4 engine.....lesser headaches...

true true...but vr4 engine *may* come with its own set of headaches haha

 

[tigger5251]

Overhauling is the best thing to do. But if the price is comparable to a good halfcut/engine lantai, better swap the engine coz the amount u paying cud giv u a better kick. U must rectify the problem first n keep your engine tip top, only by then u add a piggyback. (And why would u want a piggyback on a stock engine ?)

@.@

 

[mgbk]

Little White Wagon - Yes its 130 km/h. very sad indeed

tofu_manic - Where can i do this compression test. Anywhere u recommend? Around PJ would be great.

DanzEterna - I dont want to change my engine as it is costly and i heard it cost more problems. I will changer to an evo engine in the future. but for now short on cash.

E-Tech - I have a feeling my engine is not healthy and do u have any recommendation to do compression test? The stock tired are 195/60R14 and now its 195/55R17. How do u calculate. Please share cause i want to know as well.

tigger5251 - Yeah thinking about overhauling and changing engine but it cost a lot therefore looking into other alternative and methods to identify the problem first. Thought simple tuning will help cause i read a lot of post that say tuning alone will help increase the performance. Am i wrong?

Thanks everyone for the comments.

 

[FVel]

get a speed cut

Hyundai Coupe is a chick's car. All looks, no grunt.......Even so, my stock Hyundai Coupe can get to 190kph before bogging down. So there is obviously something very wrong if he cannot get his car to go beyond 130kph. Nothing to do with any speed cut.

 

[tigger5251]

Little White Wagon - Yes its 130 km/h. very sad indeed

tofu_manic - Where can i do this compression test. Anywhere u recommend? Around PJ would be great.

DanzEterna - I dont want to change my engine as it is costly and i heard it cost more problems. I will changer to an evo engine in the future. but for now short on cash.

E-Tech - I have a feeling my engine is not healthy and do u have any recommendation to do compression test? The stock tired are 195/60R14 and now its 195/55R17. How do u calculate. Please share cause i want to know as well.

tigger5251 - Yeah thinking about overhauling and changing engine but it cost a lot therefore looking into other alternative and methods to identify the problem first. Thought simple tuning will help cause i read a lot of post that say tuning alone will help increase the performance. Am i wrong?

Thanks everyone for the comments.

Adoi, piggyback is to "manage" something NOT stock in your engine, like highcams, bigger pistons, port n polish, ignition bla bla bla. Its the internal upgrades gives u raw power, and the piggyback "manages" and make use of the mods to produce optimum power.

If u install piggyback alone, maybe u only improve 6-8%, not worth laaa

---------- Post added at 05:58 PM ---------- Previous post was at 05:57 PM ----------

Hyundai Coupe is a chick's car. All looks, no grunt.......Even so, my stock Hyundai Coupe can get to 190kph before bogging down. So there is obviously something very wrong if he cannot get his car to go beyond 130kph. Nothing to do with any speed cut.

Actually, it is borned with overheating problem.....hehe.....

 

[tofu_manic]

tofu_manic - Where can i do this compression test. Anywhere u recommend? Around PJ would be great.

At any reputable workshop with a compression tester haha

sorry im not from anywhere near that area so i have no idea

 

[LittleWhiteWagon]

Little White Wagon - Yes its 130 km/h. very sad indeed

tofu_manic - Where can i do this compression test. Anywhere u recommend? Around PJ would be great.

DanzEterna - I dont want to change my engine as it is costly and i heard it cost more problems. I will changer to an evo engine in the future. but for now short on cash.

E-Tech - I have a feeling my engine is not healthy and do u have any recommendation to do compression test? The stock tired are 195/60R14 and now its 195/55R17. How do u calculate. Please share cause i want to know as well.

tigger5251 - Yeah thinking about overhauling and changing engine but it cost a lot therefore looking into other alternative and methods to identify the problem first. Thought simple tuning will help cause i read a lot of post that say tuning alone will help increase the performance. Am i wrong?

Thanks everyone for the comments.

Wow... that sure will mess up your speedo readings. Where do you find tires for that size?

 

[K2 stanley]

Wah taiko, how u want to run the car with such big size rims. R u sure the size is 195.55.R17? Try change ur rims to 15inch, i sure it will make alots of diff.

 

[E-Tech]

Std coupe.....
Tire Width 195
Aspect Ratio 60
Rim Diameter (in) 14

Tire Height (in) 589.6

Distance per rot. 1852.28736


Rim beso...
Tire Width 195
Aspect Ratio 55
Rim Diameter (in) 17 inches =

Tire Height (in) 646.3 mm

Distance per rot. 2030.41608 mm


as i guessed.... your speedo is off about 9.6%
You actual car speed is 142.5km/h and not 130km/h(speedo only).
Anyway comfirm hv engine trouble...
Tq

before you ask me.... 2030/1852 X 130km/h=142.5
dun you me?

 

[K2 stanley]

E-tech u r the man.
His engine is very old, so i think the hp also bye bye de.

 

[E-Tech]

E-tech u r the man.
His engine is very old, so i think the hp also bye bye de.

Yar lo... but still his sayang car mah.
If can help, we help him.... very sad... 143kmh.. kancil/myvi will kacau him...
Tq

 

[mgbk]

Hey thanks everyone for the reply and E-tech, thank u so much for the calculation. Totally respect you man *Salute* lol. By any chance are u in the engineering field. Thanks for the calculation. Yeah please help. A lot of car has been disturbing me just cause my car looks like that. lol. I will get the compression test done first and see what is the problem. Anymore ideas do let me know. :)