HELPPPPP Can't Exceed 180Kmph by b16a

ECUs, intakes, turbos, fluids, transmissions, exhausts etc.
MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 10:48 am

Hay guys,
I do have really had a problem in my car, and I'm looking forward to have help from you.
When I bought the car from a year ago, it was amazing and hit the 220kph in not time.
Now the fourth gear is too slow, and when I put the fifth it stops on 180 and no more.
Some Notes:
It's daily drive car, and in the city I'm not exceeding 100kph.
I decided to with it, and make it alive again.
I ordered Completion Clutch, spark plugs (Radian heat 7) with cables, K&N air filter
Applied all together with new gas filter and cleaning the injectors and the ideal vacuum, and the throttle body.
Note:
The exhaust is 2 inch (Stock size) but the headers are 2.5 inch 4-2-1.
I don't know what to do, and it getting me crazy.
Please guys any one give me a hand, I don't know what to do with that :$ !!!!!!

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alexEF
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Post by alexEF » 28 Nov 2010, 11:21 am

first time i heard about completion clutch...

MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 12:34 pm

Sorry;
it's competition clutch
and new engine oil with filter and new gear box oil (80w/90w sheall)

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wek-236
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Post by wek-236 » 28 Nov 2010, 12:36 pm

have you tried changing the ECU?

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RasHooD
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Post by RasHooD » 28 Nov 2010, 12:47 pm

Since you say it wasn't like this earlier, all you need is a compression test to determine the exact problem. Most common power loss is due to improperly sealing valves (means you need to change valve seats) or a change of piston rings.

Cheers...

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dohc
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Post by dohc » 28 Nov 2010, 1:09 pm

^^ afaik
problem with piston rings, valve seals can be noticed with white/blue smoke on your exhaust and excessive oil low level. Wek is correct, can be in the ecu. Have you already chipped your ecu?

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Eleanor
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Post by Eleanor » 28 Nov 2010, 2:27 pm

i noticed this with my D15 engine.
i use to touch 180 with no probs.... but after i installed my AEM V2 CAI, i could touch 160 and no more.....

Try putting ur oem intake back on and try ..... im sure its gotta be it

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albertho555
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Post by albertho555 » 28 Nov 2010, 2:41 pm

are you very sure it was touching 220 before?

MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 3:38 pm

Thx guys for fast reply
I have mentioned all the modification done to it,
The ECU is stock, so chipping done to it.
And the smoke is good, more than perfect and gets a lot of water out of the exhaust, and the oil level is perfect.
But as I said I used to drive it in the city with normal driving (without high RPM) for a long time.
Is it needed to run on a high RPM for a time? Or what!!!!!!!
I hit the 220 on a high way in the last summer. And it was accelerating perfect on the fifth gear (the torque was alive)

MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 3:39 pm

Thx guys for fast reply
I have mentioned all the modification done to it,
The ECU is stock, so chipping done to it.
And the smoke is good, more than perfect and gets a lot of water out of the exhaust, and the oil level is perfect.
But as I said I used to drive it in the city with normal driving (without high RPM) for a long time.
Is it needed to run on a high RPM for a time? Or what!!!!!!!
I hit the 220 on a high way in the last summer. And it was accelerating perfect on the fifth gear (the torque was alive)

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Exquisite
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Post by Exquisite » 28 Nov 2010, 4:41 pm

Good luck Mobar in finfing the problem :wink:

Guys...I have a problem too.....The stock dodge ram should accelerate from 0-100 kph in 9 seconds and also spins its tires when accelerating from a stop...but mine doesnt spin its tires and it takes 14 agonizing seconds to reach 100 kph...does anyone know what might cause the car to be this slow..oil levels are good, and no smoke what so ever.

toleg
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Post by toleg » 28 Nov 2010, 4:54 pm

there is no torque on b16a :grin: :grin:

ECU stock then chipping done to it (if its stock how come it was chip) :roll:

you can hit the floor to extract those little dirt out, maybe it will help

MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 5:10 pm

Sorry; I mean there is no chipping done to it,
About the torque, I mean that, when it's on the fifth gear the power is available, when u hit the paddle, it gives more and more, but now it dead, totally dead.
What should I do,
By the way, the stock of the EK can't be chipped, cuz it's OBD2, to tune it I should have new OBD1 ECU to do the job.

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RasHooD
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Post by RasHooD » 28 Nov 2010, 8:28 pm

If there is no chipping and never was, it is supposed to ideally run the same as always. Since it has not thrown up any error codes, it is not very probable. Get a scan tool test done anyways.

Yes its right the compression leak problems are easily determined due to smoke and drastic decreases in oil levels but not when it is minor.

Also, have you recently changed to heavier/larger rims? The difference in unsprung weight counts for a huge amount and can affect performance by quite a noticeable difference even if the change in weight is not much.

MOBAR_EK
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Post by MOBAR_EK » 28 Nov 2010, 10:56 pm

All what u said is right, and I believe it.
But the oil is good and there is no smoke.
And about the rims.
Its stock size is 195/55R15
When I hit 220 was 205/50R15 with Taiwan rims
Now Enkei rims 205/45R16
And it's light wait rims, (Race edition) I saw it in many Hondas racing on the youtube in Japan



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