pls read this and post your comments

[phunky.buddha]

as i said earlier in this thread i had great results by istalling a a set of itr (jdm) pistons in a stock b16a1 that setup decreased my 1/4mile time from 14.2 to 13.6 with no other changes in the car.
now i dont know why you are saying that itr pistons have smaller dome .
when i did the swap i noticed that the itrs where higher by 1.5 -2 mm than the stock p30s

notice i had to machine out the rods to fit these bcos the itr rods are a bit narrower than the b16a.

could it effect the performance so much by having the rods a bit lightier???????????
dont think so!

You never said that earlier in this thread. If it worked already, why are you asking the question? Just go for it.

 

[Magana559]

if you had to machine the rods or pistons so you can get any other b series rod to fit you are running CTR pistons. Im going to run ITR pistons on LS rods and I didnt have to machine anyhing.

Did the pistons say PCT or did they say P73?

 

[Magana559]

and there was no tuning no fresh rings my driving is always the same

FUCK! you know I really hate people like you. TUNE THE FUCKING THING!
Didnt you learn from your 5th injector turbo build? It dosent fucking work you hard headed cunt!

 

[gatto-is-alive]

it is simple why i 'm asking the question. this time i'm gonna use a gsr head instead of the b16 one i thought something may be different from the other .

and sorry for the crappy turbo built now thats come to past.
pls dont mansion it any more 10x

 

[gatto-is-alive]

You never said that earlier in this thread. If it worked already, why are you asking the question? Just go for it.

yes i have go to the first post of this thread.

 

[gatto-is-alive]

the pistons i'm using are p73 (jdm ITR) stock b16 rods does not fit into any of the r pistons cos the r rods (including those from b16b and b18c5r) are narrower cos of the weight reduced to have better revving performance.

never had an ls or seen one in my county. here in MALTA all b series are vtec

 

[gatto-is-alive]

Ir-rizultat ghat-tfittxija ta' stampi permezz ta' Google ghal http://www.ff-squad.com/tech/pistons/Piston-lineup_1.jpg


for better piston guiding visit this link i have done some intensive research on those

 

[gatto-is-alive]

i was thinking of buying some ctr pistons now that had some advices about .


what about the nippon racing pistons are they worth for their price?
or shall i go oem
note i intend to it on low budget !!!

 

[phunky.buddha]

yes i have go to the first post of this thread.

Ah, you are correct. The basic difference between using the GSR head vs the B16 head is a 0.2:1 higher compression ratio. That's really about it.

 

[Magana559]

it is simple why i 'm asking the question. this time i'm gonna use a gsr head instead of the b16 one i thought something may be different from the other .

and sorry for the crappy turbo built now thats come to past.
pls dont mansion it any more 10x

I didnt want to, but you need to tune when ever you bump compression or do any major mods.

Nippon pistons are great pistons, Im using em for my build. They come with gas nitrate rings too! you can get them for 150 usd shipped!

socket your ECU and tune it your engine will perform better and will be reliable.

 

[gatto-is-alive]

10x magana i got it now!!!

 

[gatto-is-alive]

which one is higher the b16 s or the gsr s?

 

[phunky.buddha]

Higher what?

 

[gatto-is-alive]

compression ratio

 

[gatto-is-alive]

just bought the ctr pistons by nippon racing for my build

 

[pooksy64]

head was manually ported and port polished to mirror finish , got dual valve springs on the exhaust valves too, im is in progress to make it fit and then it will be ported too,then when finished i have to get it tuned for some more power

Did you test the flow of the head b4 machining?and after? How do you know if you over didnt bore the ports? ? ? ? .

you want more velocity flow(PnP), air is injected into the cyl much faster. You over bore it, your going to create a lot of turbulence where the air comes down from the intake runners and meets the head = poor performance.

 

[Magana559]

just bought the ctr pistons by nippon racing for my build

emember you will ahve to have the rods or pistons machined in order for them to fit on stock b16 rods.

I would also buy ARP rod bolts

 

[gatto-is-alive]

yes sure but i have to wait untill they arrive i think it will be around 15 days then straight to the machinery

i have to stop the build right now cos of them

 

[gatto-is-alive]

one other thig i have to ask here
today i picked up the itr cams but i not sure about them
the marks and grooving on them is that of the b17 , maybe because these where imported from the uk .can it be eu version?

 

[Magana559]

do they look like this??