justinryckert

i have a 90 gxl with stock na engine. im wanting something with good power and reliability. i dont know if i should just port the na engine or get a t II engine. i have also wondered about getting a 3 rotor engine. which would be the best overall option?

Sideways7

iTrader: (7)

First, forget about the 3-rotor. Its overkill for most, and takes up a HUGE amount of time and money.
Now, what are your plans? Do you want a car you can take to the drag strip and smoke your friends with, or do you want a fun car to drive around?
If you want tons of power, then turbo is the best way to go since you just can't get a a whole lot from an NA. That said, you can still get plenty of power from an NA, and it can be tons of fun.
From a purely practical standpoint, rebuilding the NA is the best way to go. It is far simpler, and far cheaper to do. There's a whole lot of stuff that goes into a turbo swap that most people don't realize.

introVert

An old adage for ya-

cheap
fast
reliable

pick any two.

and another- read FAQs.

welcome to the forum. have a nice day.

justinryckert

im just wanting something that can kill about anything. im used to haveing fast vehicles. i used to have a 02 ranger with tons of mods and grand am that killed all that tried. i have alot of fun with my7 but it needs more. the main reason is my car has like 160000 miles on it and it starting to show its age. i want to mainly take my friends camaro on. it has been ported polished and nos. my plan is to change everything in it.

TehMonkay

iTrader: (-1)

How much you willing to spend?

As far as I know, for engine builders and tuners, the closest one to you is chris ludwig.

http://www.ludwigmotorsports.com/

You could have him build you an engine, he does some of the best work i've seen.

Or a stretport, an NA engine wont go very far past the 200whp mark if tuned well.

Go with a T2.

RyosukeD

iTrader: (2)

Realize that the n/a is not a straight line killer, and have him follow you into some corners. That's where your car will show itself.

phoenix7

you need a goal, and a budget.

what do you want?

justinryckert

my goal is to have any where from 300 to 400 hp. i dont want to spend alot but im willing to spend what i need to get it done right. their is a whole bunch of interior work on the car that needs to be done.

phoenix7

I think you can do 300HP under 5K.

rxdrift7

iTrader: (3)

Your best bet is a tII. You can get 300 or 400hp from a tII and probably spend less than the price of a 20b.

justinryckert

could i just add a turbo to the engine i already have or do i have to get a t II engine

phoenix7

yes, you can but you don't really want to.

best bet is engine swap IMO. I'd never try to turbo or SC an NA

justinryckert

dont u have to change the tranny and everything to do that. what all would i need to get. i thought about a jdm but i have heard alot of problems with that

phoenix7

oy man, if I had a dollar everytime that gets asked I'd have enough to buy AN FD.

It looks like you're a noobie that wants more power with less maintenance. If this is the case then the RX7 (any generation) is not the car for you.

Rather than thinking about more power right now, you should look into what it takes to make your car as reliable as possible. Once you've been around a while and you know what you really want ( after you search, read, and LEARN more about the rotary) then you'll be able to make an intelligent decision. Until you've done all this you're just wasting your time and ours. Go read up on the rotary and the swaps and come back in a month and tell me what you've found, what you want to do and what your budget is.

Let me point you in the right direction:
https://www.rx7club.com/search.php

for starters I'll let you know this:

If you want a quick swap that is good for up to 250 hp:

USDM or J-spec TII motor (same series as your NA), ECU, sensors, throttle cable, stock TII fuel pump, 550cc injectors and a boost gauge.

If you want more power then you'll need the drivetrain (tranny, clutch, flywheel, couterweight, driveshaft, rear end and halfshafts), bigger fuel pump, bigger injectors, fuel controller, boost controller, bigger turbo, wideband, FMIC, bigger radiator, Better brakes (if you don't already have the 4 caliper brakes), better tires, suspension.

That's on top of the regular maintenance in order for your car to run properly.

This, and more, could have been found by searching and I wouldn't have wasted my time writing this out for the 1000th time. Please stop asking and start reading or you're gonna **** me off even more.

justinryckert

i know the basis of putting turbos and sc on cars. im just not sure cause of the way a rotary works. i know how the engine works just not what happens when adding power to it. i was just asking cause i knew that the t II has a different trans in it. i have had my car since may and i have been reading up on it all. i was just asking on certain problems that people dont realize when adding power to it. tricks on working on rotaries. thats all

phoenix7

I gave you all the info you needed. You can do what you want now.

If you know about putting turbos on cars then you know that you need custom manifolds, custom fuel, custom oil/coolant lines, custom DP, custom piping, and you also know that it's recommended to go with lower compression pistons, reinforce the motor (internally) to withstand the increased pressure and all that BS, UNLESS you're the "let's slap on a turbo and drive the **** out of it type-of-person".


If you knew this why are you asking us about the rotary?

Same principles apply, just less moving parts internally. If you know how to weld and can source all the parts cheaply then it shouldn't be a problem for someone that has experience putting turbos on other cars.

I'm only going to say this ONCE:

for ease of installation and plug-and-play action do an ENGINE swap from the same series.