Hey guys...
My rx8's kaput already clocking at 110k mileage.... currently considering to change the engine.... the budget is 15k (stretchable to 20k)
already when to ah choy subang for his advice...
brand new rx8's engine is 25k...
rebuilt is around 12k..
change to halfcut engine around 15-18k...

i'm also considering to swap to piston type engine such as 1jz or sr20det.... bcoz rotaries does need more maintenance and can run only on ron97...

any suggestions n opinions are very much helpful... thanks...

Rebuilt it. The rotary sound and roadtax is awesome :drools:

Could RX8 it fit RX7 engine? I think u really mod/ abuse the RX8 engine kaw kaw to kill it.

20b

for me i'll go with low mileage halfcut if u could find one..
>100k km milage car, engine not the only one that kaput, the other wear and tear part should be replaced as well if necessary..
halfcut will cover almost of that if not all..

1jz and sr20det though they are good engines, u'll find difficulties is interfacing the electrical items..

Not that i'm skeptical on quality of malaysian mechanics but i'm sure the handling balance of already best on RX-8 will affected when swapped with those much heavier engine. I think that the main advantage of rotary, minimum engine weight thus contribute to good handling car, one of Japanese cornering machine ever

You can fit RX7 engine in but you will lose all the OE gauge cluster feature
I think rebuild stock engine is the best
Well,rotary engine have to take care of it nicely for prolonged life span
Always never shut off car when cold(Engine will flood),check oil and top up periodically(like say once in a 2 week) and always drive sprintedly after warm up to prevent carbon build up
Take care of it and it will take care of you
To TS,maybe can do street port while rebuilding or something but i am not sure if Ah Choy do it

the main things boggling my mind is the warranty,
if brand new engine only 1 week the most...

if got money -> brande new.. tight a bit budget recond engine (might fetch some goodies if half cut engine).. really no choice then rebuilt engine..

Rebuilt the engine with solid aftermarket parts such as RE Amemiya. Will be very reliable in the long run.

i rather put a rb26 in it..less hassle + more power....halfcut cheap oso

thinking bout it... cheaper in the long run...
how bout JPJ/Puspakom endorsement issues...

runner can kautim no worries....cause if want to do it by the book your ride can only up till 1.6cc ..lol ...

ar188 We need you here lol

20b or 1jz..

1jz seems to be overkill... 1300 jumps to 2500...
runner fees oso will be overkill the budget.. just found out it will cost me 2-4k for the fees...

then maybe SR20?

anyway you do 110k then mati not bad liao.. last time at ah choy, i see 70-80k already engine kaput.. luckily mine 146k also no mati , fast fast sold it off..

haha... the car adi 7month not in running condition, only hav the budget...

now got 2 workshop that r shortlisted...
if i wanna go with rotary must go to ah choy since he is the best...
if change to piston, a very well known rotary workshop that can do such wiring needed..

haha... if go for rotary will go for RX8's engine...
it is very troublesome engine to take care...
the fact of it use RON97 is a bit disturbing...

rebuilt.

1JZ in a RX8....
Credit to LSF Autowork....

sell it off ....nothing can be done , mazda without rotary are just like pondan
cheap rebuild then let it go . cover up plate so no 1 know . or let used car trade in. change engine then engine need endorse , mostly ppl see will stray away

So true.

Ever consider doing those reliability rebuild? Using exotic materials.
Read up on those build that mainly want more reliability.

Err... suggesting to change car as TS fell troublesome to take care of rotary engine...

i bought this car cheap already using student AP in 2010...
it is free from any encumbrances, only need this car to send my little sister to school n basic driving (point A to B)... no racing involve..
therefore im really keen to rebuilt/replace/switch the engine... no monthly installment is GOOOOOOOOODDDDD!!!!
bought new car need to wait next year la, whether PR o BN wins, car will be cheaper.. haha

This is the main problem. Rotary not for u to go point A-B . U have to occasionally rev up the engine to like 5k rpm to prevent carbon built up. At current ron97 price , it would be wiser to fuel up full tank ron 95 and add fuel booster

if really just wanna get from point a-b then put in rb20 lol. cheapest . ca18 also can.....lol

depends on the failure. U might want to know wat parts kaput first.
-rotation gear?
-seal?

cos rotary are not like piston where u have many linkage parts.Rotary are mechanically simple.maybe go for a second opinion .who knows it may just need some repair only.

B20b hybrid? This engine let you down to just a matter of time.
saw too many B20b are having problem of breaking blocks, valve, or crank. Finally the owners fed up with rebuilding it and sold off their rides.

Be my guest if you wanna try lol

I tot SR20 is better than RB20...

sorry no pistons here.

coz its only a to b purpose . so suggest ts the cheapest heheheh

i looking for the best solution,the cheapest one may not be the bestest solution...
need all the sifu's input to help me to make the best decision...

25k ? but mine i also change at ah choy place there about 15k...

mine only 62k+ then kong . lol ...though i may have found out why the engine kong ...

just get a new engine , cause you would not know the halfcut condition

why? share abit?

brapa ko angkat mazda ni? ap adik ko blaja kt jepun ke

back when first got the car , noticed that the engine temp would rise during traffic jams .s. had read that engine would tend to heat up in traffic conditions or hard driving so left it ..then after cny last year , driving to KL from PG , just before ipoh , there`s a section of the higway which goes up slope before the tunnel ... got caught in a massive jam , the engine temp had risen to maximum ( i know my mistake , should have pulled over and let it cooled down ) , reached the tunnel evrything cleared up and went back to normal ... reach KL already , suddenly the car stalled, but after a while it started back up , the quickly drove back home ...few days later noticed the temp still rising ...so masuk workshop (st wangan ) dianosed driver side cooling fan motor kong ... but i think by then the engine was damaged bdly ... lol

wah means fan indirectly injured the renesis then..15k fly away,.. steering rack got change ar?

nope, still the same ,though i suspect thats the next item to go , haha ..damn mazda and the electric sterring . ;;;lol

so engine working but you changed it anyway.. orang kaya is orang kaya..

i only changed after the ah choy took apart the engine and showed me the parts which were err...serisouly needed replacement ... worse part was the e-shaft bearing ... worn down till you can see the copper/brass color, the rotor housing got deep scratches,oil leak (which you know is disaster) .. and the car had problems starting ... i think due to the overheating incident . lol

25k is brand new zero milage engine, if change to recond engine it would be around 15k~ depend on replaced parts.. (quoted by ah choy last week)

haah, adik blaja jepon... kerete sahaja RM18k~ xmasuk tax n lain2...

mine it got stalled at traffic light in a hot sunny day somewhere in rawang, temp to the max, water tank suddenly burst, and that the story..

This post has been edited by budakhops: Apr 24 2013, 06:42 AM

anyone knew fuel consumption for SR20 & 1JZ per liter??

btw this is SR20 in a RX8...
credit to Vadim@SR20.com




This post has been edited by budakhops: Apr 24 2013, 08:58 AM

Time to install dual oil cooler like OE Mazdaspeed
Mazdaspeed one so sweet,even got duct that bolt up to Mazdaspeed bumper
@TS,going from point A to point B is why your engine kong
Need to rev the heck out of rotary to ensure reliability after the engine warm up of course
Another trick can use is pour some 2 stroke oil into fuel tank when filling petrol;Will help your engine reliability,especially rotary and make it perform better while at it too

I found a shop in Klang call Naga Motorsport already start install SR20 into RX8

https://www.facebook.com/media/set/?set=a.4...88552926&type=3

I heard some bad stories with Naga...

there is no update on the progress....

what kind of bad stories bro??


yesterday adi go to LSF, i have to wait into the waiting list, earliest on JULY...
only LSF can make the speedometer work properly, other workshop dont have the expertise to do such..

is it worth it to wait?

I wish I can find the story. But is in facebook.

y the heck do u wanna bother with using back the rx8 speedo? if u want to convert to SR or JZ engine, just use back the meter from the halfcut (if it can fit into the dash. i think S14 & S15 meter can fit). personally i won't be bothered with the wiring compatibility, if the meter can't fit into it, then use Apexi RSM and a fuel gauge to look at the fuel level. if u convert to other brand engine, must use back that halfcut's wiring, don't lek lek go and do hybrid wiring because that'll be idiotic, and it'll make your head bald.

personally, i'll go for the SR20det and make it around 280whp for street use. the Renesis engine is just too darn underpowered / under torque for everyday use, and too darn thirsty. not to mention the maintenance of the thing. and using SR won't hurt the balance of the car too badly. it's a lot more heavier than the rotary but at least u don't have to worry too much every day about maintenance, fuel and what road to rev the car to the max just to clear that carbon build up in the rotary.

1jz is just too heavy for that car, the balance of the entire car will be severly ruined, and every time u step on the gas a little bit, your tail will slide. i know, because i'm driving an E30 with 1jz vvti, and i don't have LSD, if have LSD like the RX8 u will be praying for survival every time it rains. and u have to use auto GB because the rear diff of your RX is not going to last even 1 week with a manual 1jz. use 1JZ only if u plan to drift the car.

if for weekend use of course use back rotary.

there are a few sports cars that are worth to buy starting this year, 1 is the fairlady 350z (which can easily be converted to RB26dett) and the other is the RX8 (which can plonk in the SR20det). both are very cheap to buy, both have big disadvantages using their original engines but will be awesome if u do an engine conversion.

the fairlady is it's stupidly high road tax but very low hp per CC. change to RB26dett although is a very expensive process, but every year u don't need to pay 4k for road tax, only pay 1k plus for 2.6. and u get tonnes of hp and tonnes of g-forces to play with. or u can just be a cheapo and convert to a 1jz vvti and save at least 5k on the conversion.

the RX is it's troublesome maintenance as an every day car. change to SR has a lot of benefits and only 2 downsides. it's easy to maintain, easy to feed, easy to drive every day. downsides are only u don't have the pure bred rotary goodness and that revving sound, and the balance of the car is kinda ruined (which i don't really care since drifting is more fun than pin-point precision driving)

Bro, u know a place that can mod external fuel gauge? my fuel gauge kong, and a few workshop doesnt know how to repair or cannot find whats wrong :facepalm:

bmw workshop says the wiring has been modified, so he scared want to do it. Another workshop says he cannot find whats wrong. Recommend me to strip the car and redo the wiring altogether (since my car wiring very )

using 1jz in e36

sorry, can't help u with that

its nothing wrong if i can used the ori speedo gauge...
since it is around the same price with other workshop that cant do it...
LSF can do some wiring modd to make it functional... but need to wait..

agreed with u bro... i may go for SR20 turbo... 1JZ seems to be very heavy...

the point of not using the ori speedo is to simplify the wiring system with the new engine. using back the meter from the halfcut is a plug and play process, no need to mod this mod that, and it makes future maintenance a whole lot easier.

Seem like the world worst trust engine.

Where got faulty issue on more or less clocks at 100k Kms mileage only..

Lol.

I agree but to disagree at some points. A brand new engine of any type can be damned too easily if the driver doesn't give a heck in caring nor servicing it. U don't need 100k of mileage to trash a brand new engine, just by 'violent driving' coupled with disregard servicing and the rising of engine temperature can kill a brand new engine in no time, needless to mention a fragile engine such as a rotary lol.

I suggest you overhaul the rotary engine at SC, safer and less likely you'll get conned. Rotary engine lifespan is 7 years, at least guaranteed could serve you well for another 7 years. If you sent to outside workshop, they'll charge you highly markup cut throat price for the parts and you don't know whether they really buy the parts or just re-fit the old part back to con you.

Price of overhauling Japanese engine at SC for totally blown engine:
- Inline4 engine around RM4k+ and never close to RM5k
- V6 engine range from RM5k-6k

Conman Ah Beng workshop could charge you RM6k for inline4 and RM8k-10k for V6. Also, many Ah Chong Ah Beng workshop are run by unqualified self claim foreman that don't even know what is Automotive Engineering course. Not even the minimum MLVK no CNG certificate with on job training.

Recond engine is nothing more than dead engine that they just fix to level where it can move but will give you headache shortly. Those old engines could be taken from cars that got total loss in Japan and given to you. Also, they don't even know how to calculate pressure, the air intake and exhaust manifold to muffler are nothing more than just sendiri tarik style that end up choking your engine. Either not enough pressure into engine or too much pressure into engine but exhaust pressure too low to pump out the exhaust causing carbon buildup and engine suffocate to die early.

Mind you, carmakers don't make straight air intake and exhaust with reason, curvy bengkang-bengkok tubes are there to generate enough pressure before pumping into engine and also creating pressure for exhaust gas to be pumped out of engine out through muffler pipe.

Don't pandai2 go change engine. That old SR20 engine or RB20 is too heavy for your RX8, you might understeer easily. Also fuel guzzling like mad. If you wanted to change engine, better you buy brand new Altis dual VVTi 1.8L or Korean Nu 1.8L or Theta 2.0L engine that save FC yet lightweight around 120kg or less.

Exhaust too, don't bother to change, more likely to cause pressure loss and the car can't digest exhaust properly.

This post has been edited by jayraptor: May 1 2013, 06:24 PM

Errr
FYI,Ah Choy is one of the best rotary specialist around i suppose
Most of malaysia rotary is maintained at there one

Frankly,i would be more worried if i drive RX8 and send it to service center
Ah Choy also got goodies up for sales one
R3 Recaro interior,19" wheel etc

Been into the same situation,too...(Massive CNY Traffic Jam when going to Kedah in early 2012)

No such problem happened....So that was my luck,also.

But to add one more thing,carbonized rotary are not good.So whenever I got a chance I would rev tha b1tch hard enough especially when I was driving more than 1 hour without any redlining...I would find my way to doing it.Luckily it also handle better in corner than my fat Z33 so it kinda easy to push the engine while having a road-worthy fun with that.

So far no problem with my RX8 but mine was revised & facelifted version so you can expect that Mazda has made some revision on the engine,ECU & such other than just a look.(first gen ECU reportedly had a problem especially on the AT version where the engine management system didnt pumped enough engine oil during high-speed engine operation but it happened on several chassis no. if my mind served me right...In US the problem has been led for some class action suit & Mazda does make sure all the infected' model no. are getting free software update...)

Changing engine is good for reliability & power but not sure how it would effect the chassis rigidty & handling.So far I love RX8 because of the handling,& sharp steering respond.Been into track for quite a time with my Z33 & Nissan sportscar always felt heavy & less steering feedback.

I can say the RX8 had the same steering feel & handling behaviour as the NSX....Only a lil' bit sharper',probably that just me,but smoothness of wankel engine(where the polar of momentum are not up & down,but rather spinning directly on one linear direction) are making me just a bit more confident on driving it to the edge rather than both NSX & Z33.(Which I also happened to own,as well)



Ah choy is a good wankel mechanic,go for him.Best rotard guy ever !

Regarding the RX8,I admit I was love the facelifted model in Nemesis Blue & R3 package...Look dammmn good!

the older also had issues with the stock battery and the starter ... for the pree 2005 batches if i remember .

1jz would probably be awesome...
but not sure if that massive 6 pot engine would affect the handling of the car....
hmmm

Guess generally RX8 as a driver's car that is practical for man in his late 20's ~ 40's is correct
Not so boy ricer image as EVO/STI and you get RWD fun(50/50 weight distribution,FR,LSD) in an attractive package
Also rotary sound is damn loud when decat
Overall it's an attractive ownership proposition for someone who know what they are getting into(Check oil level,top up oil accordingly,no cool shutdown,rev the heck out of it)
Also common issue like coolant reservoir,reinforced clutch pedal,steering rack,coil pack must be taken care of
Your RX8 is AT or MT??
For me,i would take a Mazdaspeed kitted one with R3 rim,interior

If Ah CHoy workshops is run by qualified engineers, that is fine.

Ah Beng workshop I'm referring are those with Kopi O' or Teh Tarik Lesen operators with trial & error education.

Conclusion is, send to workshops where qualified engineers with tech know how is ok. If not sure which workshop has qualified engineers, best to send to SC.

Recond the ori rotary engine is better than getting 2nd hand dying engines taken from wrecked cars.

If got PP, even more awesome.

Not just qualified engineers. Best if those engineers got rotary background.
Sadly, my university is not teaching rotary.

U may try this workshop from Seremban, Ah Loong if im not mistaken. He's very well verse with 1jz + BMW

PM me if u need his contact

PP not really streetable lah
Wonder why no one does PP Renesis + ITB + Dog Box rev to over 12k rpm
But frankly if intend to go to that extend i rather do 3 Rotor NA like Panspeed's one
Again kind of lari theme with fun street car
The whole point of RX8 is you need to learn how to drive properly to be fast utilizing the limited power you have at hand

aiyo too far la bro heheh

go LSF for rx7 engin
i bought a half cut from ah choy around 13k ..compression rate around 7.9 7.8

try Mazda 3 MPS engine?