0001tmn

iTrader: (2)

alright i was wondering i searched for awhile never found the answer i needed i am working on getting my motor rebuilt and ready for boost..and i was wondering can you swap turbo 2 rotors into a 6port 13b? and would the effect of lower compression be worth it and if it is how much work does it take to do it. sorry if i sound stupid asking this but i just wanted to know..

RotaryRocket88

iTrader: (7)

You can, but what would be the point? The whole point of bolting a turbo onto a 6port motor is to take advantage of both the increased airflow and the higher 9.4/9.7 compression ratios.

0001tmn

iTrader: (2)

well i wasnt shooting for a ton of power and i thought lower compression would make it less chance to have detonation for daily driving

platinumyama32

if your just using the stock turbo, then there isn't much of a need to put the TII rotors in it.

you are ABLE to do it, but from the sounds of it, it's not necessary for your application

0001tmn

iTrader: (2)

well then i wont worry about it but atlesst i got my answer for latter on. thanks for answering so quick.

RotaryRocket88

iTrader: (7)

You're going to need some means of tuning the car anyhow, so the fuel can be adjusted so the AFRs are still rich enough under boost.

0001tmn

iTrader: (2)

yeah i'm still trying to find somthing to tune it with..i was thinking megasquirt but then i want somthing i can plug and play kinda deal.

SonicRaT

iTrader: (6)

It all depends on the wallet size really. The easier, the more expensive it seems.

0001tmn

iTrader: (2)

well at the moment i have no money..trying to get my fc running right now i'm most likely gunna buy another shell to put the boosted 6port in once i get a job..but if i go megasquirt, i dont think i could make a harness for it thats the only thing...

Mr.FC3s

im sure if you lower the comp and use the six ports your power would be more and reliable.

SonicRaT

iTrader: (6)

Power and reliability aren't dependent on the CR, more-so the wallet involved. I've ran many large turbos (GT35-42R's) on a S5 N/A stock block without blowing it up. It's all about knowing what you're doing and being prepared and tuning for it.

RRTEC

iTrader: (13)

PLease enlighten me on where you got the information to back up this statement...

bumpstart

i have done it many times, with 3mm and 2mm 9.4 rotors
and with 9.0 and 8.5 2mm turbo rotors

- first of all, all s5 rotors and mass weights are same , NA and turbo
same as the s4 NA and turbo rotors and mass weights are the same

use them, and move them as sets !
do not mismatch s5 and s4 moving parts with one another

- as for the motors, i have settled on the turbo de- comp rotors as the best comprimise
( i also use the turbo oil pump and turbo primary plate )

these will take some pretty normal ignition timing numbers and drive like a good extend port with minimal low down losses

the 9.4 rotors on the other hand do bite very well off boost
- but have a limit around 10 psi ( on 98 RON fuel ) before you find a need to get pretty radical in your retard with boost ignition numbers
( and it becomes a pointless exercise until more octane or WI is added )

if you planning for 1 bar boost, and especially if your ignition fidelity isn't great
( a lesser ECU )
then err to the turbo 9.0 rotor s if you can get them

if you plan on more than 1 bar boost, go s4 8.5 turbo rotors

i have built and owned and tuned all of the above combos, bar the 9.7 rotors
my personal rx2 motor is currently a 6 port turbo hybrid with 9.0 rotors

PS
i also try and get s5 front and rear plates if i can , the rear is significantly stronger than s4
the front has a superior oil passage O ring design

0001tmn

iTrader: (2)

is there any way to use the stock Turbo II ecu for the time being

misterstyx69

iTrader: (142)

heh..COUGH!..:/ https://www.rx7club.com/showthread.php?t=779685

0001tmn

iTrader: (2)

lol i wish i had the money right now i'd buy it.