83mm piston on 20v

[normality78]

Some 83mm piston taikor, when you guys use Nissan / Mazda 83mm piston, do you guys mod on the piston to clear the additional valve seat? coz 20V is running 5 valve whereas those piston was taken frm 16v

care to share?

 

[KHWONG]

haha.. 1st concern is 20V block can bored 83mm or not ? if can reliable or not ?

am i right ? pls comment..

 

[normality78]

whahahah. cikopek u.... u bukan 83mm taiko... so shu shu...!! go away... whahahhaha

 

[AE75]

haha.. 1st concern is 20V block can bored 83mm or not ? if can reliable or not ?

am i right ? pls comment..

I think it can bore to 83mm because normally saw on magazine almost all is wrote 83mm piston. But I personally saw few people who did it, found all is facing reliable issue.

 

[normality78]

kind to elaborate more on reliability issue?

 

[KHWONG]

whahahah. cikopek u.... u bukan 83mm taiko... so shu shu...!! go away... whahahhaha

WTF

i knew i use 81mm only.. i better shut up

bye bye

 

[AE75]

kind to elaborate more on reliability issue?

I also don't know, because I only use 81.25mm piston nia.

 

[hon_cs]

there was an old topic created for this. since thread started for quite sometimes. you can ask the thread starter

http://www.zerotohundred.com/newforums/toyota/305860-4age-reliability-on-oversize-piston.html

 

[EFN]

For you to run 83mm safely without much issues, re-sleeving is a must. Sure you can rebore the block without any re-sleeving but then it will be VERY thin.

 

[huakenny]

anyone running wiseco 82mm piston on 20v?

 

[normality78]

EFN bro,
hm.... since the block is cheap, i may wanna try w/out sleeve and see how far it can hold

 

[AE101-Wong]

before u bore ur engine, u have to make sure ur engine block is VERY healthy...
better use on 7A block for better respond..
since spend money on bore the engine, why not try on 7A?

 

[normality78]

Hi Wong,
Yes, its targeted on 7a block

 

[normality78]

The last i found, synchron bro use 83.5mm. amazing... wonder what piston was that

 

[ngjenwei]

bro normality, change another car that already done modification la..... hehe