Basic camshaft installation guide

[hamtaro00]

hi, any1 have idea on JASMA camshaft? i believe its the cheapest around, but somehow unable to get any feedback at the moment.

by the way,izso and other members who had installed Hello Kitty cam,does it sounds rough and for normal cruising drive, FC big diff?

rgds

 

[lkeong88]

I think you only need to change spring when you mess around with lift not highcam alone.

Anyway I think you can use rubber gloves especially those medical grade - there is no contamination of the gloves, and you protect yourself from cancer.

Another thing is, from what I know, minor knocks are inaudible, but you can see them when you hook up a standalone ECU that enables you to read the knock sensor (minor knocks may shorten the engine life but so does most modding)

 

[Izso]

aiyo, taiko, no proper procedure for noob/beginner ah??
did some tappet adjustment at shop really not satisfying..

Drex and I did some tappet adjusting on my car but it still needs some fine tuning so when I find the time, I'll try it again and post it up for show later. It's not hard to do, just to get the best feel it's trial an error imho.

hi, any1 have idea on JASMA camshaft? i believe its the cheapest around, but somehow unable to get any feedback at the moment.

by the way,izso and other members who had installed Hello Kitty cam,does it sounds rough and for normal cruising drive, FC big diff?

rgds

Erm.. no difference in FC... if I control my right foot It's quite addictive (the roar of Hello Kitty.. haha) so I tend to rev it quite a lot. Recently did 11km/L which is out of my usual 15km/L.

I've got no solid information on Jasma cams so I won't comment. But from what I've heard it's just a rebranded Piper regrinded cam. If that's true, then it's value for money if you're in the market for a regrinded cam.

I think you only need to change spring when you mess around with lift not highcam alone.

Anyway I think you can use rubber gloves especially those medical grade - there is no contamination of the gloves, and you protect yourself from cancer.

Another thing is, from what I know, minor knocks are inaudible, but you can see them when you hook up a standalone ECU that enables you to read the knock sensor (minor knocks may shorten the engine life but so does most modding)

True that on the gloves. But rubber gloves tear easily and since there about a thousand things that can cut you, I'd rather just go bare handed.

Good info on the knocking. In my case my VDO won't let it knock that badly / long anyway since it's adaptive.

 

[punk]

If have time, I will get izso to post something about that. But the info is already widely available in teh web so do some personal research first lah.. okay?
Not satisfied with a shop's work? I hope that it's not my shop LOL!!!

okok..surely not ur shop..

so to make thing more clear ..i want to ask some question:
in the pic i upload the manual says no.1,no,2,no.3,no.4 should be piston number.

the second pic the marking to the Top Dead Center(TDC) should be piston no.1..
if i turn more 90degree clockwise should be piston no.2 ? another 90degree piston no.3 ? lastly 90degree more is piston no.4?

 

[1JZtezza]

okok..surely not ur shop..

so to make thing more clear ..i want to ask some question:
in the pic i upload the manual says no.1,no,2,no.3,no.4 should be piston number.

the second pic the marking to the Top Dead Center(TDC) should be piston no.1..
if i turn more 90degree clockwise should be piston no.2 ? another 90degree piston no.3 ? lastly 90degree more is piston no.4?

Hmm V engine??? V four???

DREX when you are not doing this answer him!

 

[punk]

Hmm V engine??? V four???

DREX when you are not doing this answer him!

not V engine..same engine with the wira drex doing with it..4G13/4G15..

 

[1JZtezza]

Pistons 2 and 4 are 180 degree opposite on crank to piston 1 and 3

You adjust tappets when its 'free' NOT TDC

 

[punk]

Pistons 2 and 4 are 180 degree opposite on crank to piston 1 and 3

You adjust tappets when its 'free' NOT TDC

so u mean piston no.1 & no.3 is on 3o'clock and piston no.2 and no.4 is on 9 o'clock ?
u mean it's free is when the valve doesn't go up is it??newbie here

 

[gaza]

hi, any1 have idea on JASMA camshaft? i believe its the cheapest around, but somehow unable to get any feedback at the moment.

by the way,izso and other members who had installed Hello Kitty cam,does it sounds rough and for normal cruising drive, FC big diff?

rgds

i think jasma camshaft increase horsepower too.but i have no idea is it tahan lasak or will kaboom your engine after couple year running with it.this blog give dyno chart after installing jasma camshaft.


Jasma Performance Camshaft 4G13 & 4G15
thx syazwan

 

[drexchan]

When the cam gear is aligned to the marking, it marks the TDC of Piston #1 & #4, turn the cam gear by 180 degrees you will get TDC for pistons #2 & #3.

You only adjust the tappet when the rocker arm rollers are NOT being pushed by the cam lobes. This happens when the valves are close. So you only adjust the tappet for those valves that are completely closed.

If all valves are close at TDC - end of compression stroke.
If only intake valves are close at BDC - end of power stroke.
If only exhaust valves are close at BDC - end of intake stroke.
If no valves are close at TDC - end of exhaust stroke.

Step 1) Adjusting the first 6 valves
When you align the cam gear to the marking, you will get:
cyl. #1: end of compression stroke - all valves close (adjust all)
cyl. #2: end of power stroke - intake valve close (adjust intake only)
cyl. #3: end of intake stroke - exhaust valve close (adjust exhaust only)
cyl. #4: end of exhaust stroke - all valves open (do not adjust)

Step 2) Adjusting the next 6 valves
Then you turn the cam 360 degrees (after 2 strokes), you will get.
cyl. #1: end of exhaust stroke - all valves open (do not adjust)
cyl. #2: end of intake stroke - exhaust valve close (adjust exhaust only)
cyl. #3: end of power stroke - intake valve close (adjust intake only)
cyl. #4: end of compression stroke - all valves close (adjust all)

When aligned to the cam marking (without checking the crank marking), cylinder #1 can be either in the end of compression (all valve close) or end of exhaust (all valve open), so you may start with either steps first.

You'll realize that tappet adjustment is always done with piston #1 in the TDC, so that you can do all 6 closing valves at the same time.

 

[msharif]

hi bro...can you mention where can i get that hellokitty?is it jasma..?

 

[Izso]

hi bro...can you mention where can i get that hellokitty?is it jasma..?

I got it from EA Autoworks, Pipercam billet camshaft. Not Jasma regrinded cam. PM Drexchan for more details on the cost of the cam.

 

[msharif]

where is EA AUTOWOKS?if ur engin can hve it why not my 4g93...is it also available too..

 

[HaziqRais]

I need to get a set of cams that are made for my car right?
Or can use any cams on any engines?
And does regrinding the stock cam can make it better? More hp?
Thanks!

 

[hamtaro00]

guys, correct me if im wrong.

adj.cam pulley 'able to manipulate' the cam timing, hence the effect will be similiar to changing a wilder cam? how an engine with stock camshaft can benefit from adj cam pulley then? sorry if off topic

 

[Veloc]

guys, correct me if im wrong.

adj.cam pulley 'able to manipulate' the cam timing, hence the effect will be similiar to changing a wilder cam? how an engine with stock camshaft can benefit from adj cam pulley then? sorry if off topic

Bro...

Adjustable cam pulley can alter the "timing" but not the "duration" and "lift". So the main function is to shift the powerband (whether further up/lower down) and not really increase power.

It des increase power a bit, but not as drastic as changing to a wilder camshaft.

 

[saicomos]

nice mild cam bro.. hehehe

 

[ldhong]

Besides matspeed, what cams can put into CPS? Piper ada ka?

 

[quicksilver7]

Hi Izso, just wondering if your engine has the capabilities of the mivec or vtec to change to the wilder camshafts after a preset RPM? Or is it 260/288 all the way? Thanks!

 

[Izso]

Hi Izso, just wondering if your engine has the capabilities of the mivec or vtec to change to the wilder camshafts after a preset RPM? Or is it 260/288 all the way? Thanks!

Nah. It's an archaic 4G15 SOHC. it's 260/288 all the way.

 

[drexchan]

Nah. It's an archaic 4G15 SOHC. it's 260/288 all the way.

That, was a test question.

 

[Izso]

That, was a test question.

Uh.. it was?

 

[LittleWhiteWagon]

I hate to dig up an old post but Izso! I need to ask you, what is your cam timing set at currently? And where did you set your powerband to? I'm just curious to know haha.

 

[Izso]

I hate to dig up an old post but Izso! I need to ask you, what is your cam timing set at currently? And where did you set your powerband to? I'm just curious to know haha.

Uh.. cam timing? Do you mean cam angle? If yes then it was at retard 2 degrees when I was using my auto GB. Powerband was between 3k to 5k rpms. Now with manual I'm using 0 degrees but it's completely useless at 0. I have to fiddle with it and try advancing or retarding. Haven't really had to time to mess with it.

 

[LittleWhiteWagon]

Uh.. cam timing? Do you mean cam angle? If yes then it was at retard 2 degrees when I was using my auto GB. Powerband was between 3k to 5k rpms. Now with manual I'm using 0 degrees but it's completely useless at 0. I have to fiddle with it and try advancing or retarding. Haven't really had to time to mess with it.

Whoops yeah I meant cam angle. Okay thanks for the info! I'm thinking of saving up to get one myself.