Mods For 4g13, Is it worth it?

Good day,

After driving my father's old saga manual4G15 carb, i felt significant pickup and engine perform better than Manual Injection 4G13. Quite amaze me as that saga is all standard and mine had slightly change air intake, exhaust etc.

Is 4G13 is that much difference to 4G15?

Is it worth it to change the piston to 1.5 one and rebore? What can I expect if I rebore the block? Will it bring any difference?

I am considering to get some aftermarket parts,wondering if they can do better than oem....

JASMA ADJUSTABLE CAM PULLY 4G13/4G15
Pulley

Perfomance Highcam Jasma 275 For 4g13/4g15 12v
cam

Lightened Crank Pully Jasma
other cam

really need advice from WACian sifoo...

U'll be suprised to know that the carb'ed version of 4G1x is far more powerful than the Efi version. A healthy 4G15 carb in stock is comparable to 1.6 EFi 16V! Tested and proven, both Wira manual.

dokagot : the problem with carb is that it's mechanical. Either you have high fuel consumption but more power or you have low power and better FC. I mean, if you tune it rich, you can't really drive slow without wasting fuel.

Anyway, with twin webers (sound : orgasmic) the thing can be quite formidable.

But you'll reach a point where you'll want more and end up changing the car.

Personally - don't waste too much time or money on the 1.3 and save it up for a more modern car. I mean, Myvi 1.3Sxi has more power than a Wira 1.5 siemens on the dyno.

Modern engine K3VE vs super old technology 4G15....

Human will never be satisfied.... tht's for sure.

Yeah, I guess u r rite. I try to get more info on weber. and I think I will have to put a limit to what mods I wanna do.

With my hard earned money, Im gonna invest more on real estate, and less for my car.

Still searching for 1.5 piston, though.

If u still insist to tune your 4G13, I think PZ cams & FPR will certainly help to improve. Or turbocharged it, it's pretty common these days to have BOTs.

BOT...J*J will kacau onot?

Yeah, I guess u r rite. I try to get more info on weber. and I think I will have to put a limit to what mods I wanna do.

With my hard earned money, Im gonna invest more on real estate, and less for my car.

Still searching for 1.5 piston, though.

Erm.. I have 1.5 pistons at home. You can have them cheap if you're interested.

I really do not know if it's legal or not but you can see countless ad in local megazines and ZTH forums. I also see many Myvi having BOT nowadays. I think having around 120hp on wheel for Myvi or Wira 1.3 should be very fun to drive.

Yeah, I guess u r rite. I try to get more info on weber. and I think I will have to put a limit to what mods I wanna do.

With my hard earned money, Im gonna invest more on real estate, and less for my car.

Still searching for 1.5 piston, though.

Erm.. I have 1.5 pistons at home. You can have them cheap if you're interested.

Hehe, yup, im interested. Is it heavy to poslaju?


Btw, Im interested on the BOT too, but its cost too much, better save the money to get 4g93.

Now in my list is:
Lightened Pulley
Cams
Fpr

Im Gonna buy it one by one

I have FPR & CAM...u can PM me...hehe...

.....

This post has been edited by kazami32 on May 29 2010, 11:06 PM

If rebore 1.3 to fit 1.5 piston, can anyone give me info on the side effects, ive search alot in the internet,

some says it will be safe and the rebored block is more than enough to compensate the compression of 1.5 piston, just thin a bit, not much..

and some says the block become too thin and dangerous...
look at what xcheong said
http://z3.invisionfree.com/WiseAutoClub/in...showtopic=10463

i dont know which one is true?

tats y...dont confuse anymore bro...

aredy said thousand time at this forum by every 1...
include HEXA...

1.3 is no way can fit 1.5...dont even think can.

unless u get the 1.5 block.