donny

Anyone in here running a higher HP Mazda 2mm re-man?
Have you had any problems?
The reason I ask is my motor is a Mazda re-man with very, very good compression and I want to make 350-400 rwhp with either the twins or thru a single turbo. The twins being more on the 350 side and the single closer to the 400. Or should I just spend my money now and get a good 3mm street port re-build thru RX7.com.

Mahjik

iTrader: (1)

https://www.rx7club.com/showthread.p...hreadid=128190

Trexthe3rd

Mine is running 350 on stock twins and re-man. No problems so far. (make sure ALL of the reliability mods are done first)

donny

I suppose if it is tuned properly it should be fine

Mahjik

iTrader: (1)

That's true of any engine.

donny

I really want to go single, TO4S. I am just dont want to do a re-build shortly after.

Mahjik

iTrader: (1)

Nobody does. However, ports and seals have nothing to do with that; it's all about the tuning. You can have the best seals in the world, but they won't hold up to improper tuning.

cournal

i have a mazda reman, mazda new turbos, and mods as seen in list below. running 15psi no problems at all. the motors r good make sure everything else is done properly also, tuning.

GoodfellaFD3S

iTrader: (213)

My dad made 290 at the wheels on his stock reman that he installed himself. stock rebuilt twins at 12 psi, intake, dp, catback, profec b, purple box.

With all of the remans we open up, everything is always in good shape......typically new rotors and rotor housings, and the irons and e shaft are used but within spec. Scrub here on the forum had a new motor. New everything. That was a nice surprise .

One thing that seems hit or miss is the factory clearancing of the side seals--sometimes they are a bit too tight between the corner seals and need to be ground down. That's another advantage a ported motor has over a stock reman......if your builder has his **** together, the motor will be put back together in better shape than it was taken apart.