Myvi top speed drop....

[wirahybrid]

hi zth members,

i've gt a little problem my hands right nw so i'm hoping tht all the myvi sifu's out there cn help me.....

so here's the prob...

my myvi is only 2 months old and i decided to swap my stock air filter wit a drop in open pod air filter.. the pick up is good but the top speed drop from approx. 160km/h to 130km/h only. once i reach 130km/h my speed doesn't build up anymore even though i step fully on the gas.. so is this norm or is there something wrong wit any of the sensors?? do i hav to do any settings?? pls help me out and cn anybody recommend me a workshop thts good wit myvi's around puchong area?? thx in advanced to everybody who gives their 2 cents....=):wavey:

---------- Post added at 05:22 PM ---------- 6 hour anti-bump limit - Previous post was at 05:14 PM ----------

any help pls??

 

[zenom]

err . i dunno bout that but can i know what is ur fuel consumption after changing the air filter ?
mine is fully stock 1.3 auto . full tank 200km only . me drive like grandma . max rev bout 3.5k .

 

[touge80]

My wife's '06 stock standard Myvi Auto 1.3 top speed 170km/h (at PLUS Highway). F/C for long distance about 550-600km, for city driving donno cause I rarely drive her car.

 

[wirahybrid]

zenom, my FC hasn't changed much but the only prob is my top speed. i dun wanna go 2 the workshop nt knowing anything, then 4 sure kena tipu kau kau by foremen.. better to know wat am i supposed to do first right???

---------- Post added at 10:12 PM ---------- 6 hour anti-bump limit - Previous post was at 10:11 PM ----------

and another thing, if rev too much the ur FC go up sky high la, but if u rev within 3.5k, not much diff in FC

 

[LittleWhiteWagon]

What brand of drop-in did you use?

 

[har1th7]

first thing, ur car manual or auto...

if manual - use open pod is ok, but open pod just can increase your pick up and in return, lower your top speed, same as straight piping exhaust...

id auto - jut use drop in ( do not use open pod - too much air)... auto car need a bit restriction to allow faster flow ( same concept as vacuum laa, suck & pull).... and s-type exhaust...

* must realize, must choose between pick-up & top speed.... can NOT have both... MUST choose ONLY ONE....

---------- Post added at 12:51 AM ---------- 6 hour anti-bump limit - Previous post was at 12:49 AM ----------

sorry, just wanna add.... if check engine is ok, then nothing wrong with sensors...

 

[wirahybrid]

thx har1th7.. nw i understand a bit better, btw my car is auto and the brand i'm using is jasma drop in air filter... and another thing if anybody cn help is wit my wira.... i always have the check engine light on all the time but if i press the acc a little harder it goes away but comes back wen i stay at a constant rev(ie, 3k rpm for about 5 mins) so which sensor is faulty. mine is a 4g92p and i dun hav a sensor at the end of the exhaust manifold(forgot wat its called..=( ) like the other models hav. the prob came after i did a grind valve and stage 1 pnp.. so cn any sifu out there help me out wit this prob also... thx alot for the feedback

 

[LittleWhiteWagon]

Oh dude... Jasma is pirated stuff weih -.-"
Suggest you stay away from it and get a branded one, I NEVER trust pirated stuff on my car haha

 

[BLANk]

fuh....didn't know that jasma also got drop in air filter...im so *outdated*...

K&N FTW...

if ur budget restricted...simota also not a bad choice...

 

[LittleWhiteWagon]

Haha I never buy 'Jasma' branded things UNLESS its on an exhaust

 

[wirahybrid]

really arr jasma pirated stuff??? didnt knw lor.. lot of ppl say gd 4 the price bt nvr say abt the quality...fuck... got ripped off i guess

 

[LittleWhiteWagon]

Haha chill bro, money you can get back anytime 1 , save and get a K&N lah ~~

Jasma is like SIRIM in japan, but instead of electronical devices its for engine parts I think, you google them up lah! Can find their Jap website. Sometimes it pays to do research before buying

 

[rewlie]

Bro,

I'm once used to be an active members also in myvi modder, this is the first time i hear an open pod filter with JASMA brand, go for Apexi or K&N, if you google Apexi is the best air filter beats all other brands, if pirated u know la how the production, never research one, just copy design only, they dun care either working effectively or not.

 

[wirahybrid]

little white wagon, saw ur post at thread where the guy selling c-tech braces.. so, have u used it and is it any better or ultra racing better?? i knw a bit out of topic la bt just wondering.. rewlie, i knw apexi is good la bro, using it on my wira, 3 years dy and a bit of servicing once in a while bt still going strong.... so lesson learnt, no more cap ayam for me bro

 

[LittleWhiteWagon]

Haha cap ayam parts are ok, but anything to do with ur engine try to stay away... Im guilty myself using 'Jasma' spark plug cables with grounding wires, but I bought them cause they were nice, not cause I expected them to work :rolleyes:

But after I installed it, it did give me extra power so ok lo, kill 2 birds with one stone.

I never bought C-Tech braces, however I did enquire for my Nissan since its rare. Of course they didnt have what I want so gotta custom, and more $$ fly out of my wallet hahaha

Chassis bracing as im taught, is just a metal bar to re-enforce wherever its bolted on to. It can be ultra racing, zender, Ctech or whatever brands out there, cusco, taiwan made cusco etc etc, I THINK they will still work fine.

As long as its made of a sturdy piece of metal, and its NOT adjsutable I think its ok, why not adjsutable tho?

If its adjustable theres more chance that 'bar' will flex at the adjustment points, if its 1 solid piece it shouldnt flex much

Anyways thats just my theory! I might be wrong so if any other chassis bar sifu wanna explain im okay too :hmmmm: