Go Back   Rotary Car Club > Tech Discussion > RX-7 2nd Gen Specific (1986-92)

RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.


Welcome to Rotary Car Club.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Reply
 
Thread Tools Display Modes
Old 06-06-2011, 09:01 PM   #1
tyler
Rotary Fan in Training
 
Join Date: Jun 2011
iTrader: (0)
Posts: 64
Rep Power: 14
tyler is on a distinguished road
Default N\A turbo question?

Ok guys so if just got a pair of s5 na rotors in great shape, I've been looking a lot into throwing them into my t2 engine. There are a lot of threads about this (mostly puting a turbo on a na engine) and most of them say extra fuel is needed past 8 psi. My question is could the t2 ecu run these rotors saftley at stock psi? I know all the high comp arguments and detonation risk but these sseem to only have been reported at 10psi+. I will eventually get a standalone or even a rteck as a intermediate step but wanted to know if its ok to run this setup






tyler is offline   Reply With Quote
Old 06-06-2011, 10:00 PM   #2
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

I'd use an RTek before throwing them in at the very least.
vex is offline   Reply With Quote
Old 06-06-2011, 10:02 PM   #3
blaen99
eibweN ehT
 
Join Date: Apr 2010
iTrader: (0)
Posts: 15
Rep Power: 0
blaen99 is on a distinguished road
Default

Quote:
Originally Posted by vex View Post
I'd use an RTek before throwing them in at the very least.
I'm curious - what's the hesitation in the rx7world for megasquirting?

The Megasquirt is both cheaper and a lot better than the Rtek. But everyone seems to recommend Rtek. Why is that?
__________________
Quote:
This message is hidden because yzf-r1 is on your ignore list.
blaen99 is offline   Reply With Quote
Old 06-07-2011, 04:34 AM   #4
RETed
RCC Addict
 
Join Date: Mar 2008
Location: Honolulu, Hawaii USA
iTrader: (1)
Posts: 1,813
Rep Power: 18
RETed will become famous soon enough
Default

Quote:
Originally Posted by blaen99 View Post
I'm curious - what's the hesitation in the rx7world for megasquirting?

The Megasquirt is both cheaper and a lot better than the Rtek. But everyone seems to recommend Rtek. Why is that?
Cause there is no support.


-Ted
__________________
reted_2000@yahoo.com
Technical Advisor
FC3S Pro
http://fc3spro.com/



Quote:
Originally Posted by TitaniumTT View Post
because you're only as good as your backup
RETed is offline   Reply With Quote
Old 06-06-2011, 11:11 PM   #5
85rx-7gsl-se
Mod With The Least :P
 
85rx-7gsl-se's Avatar
 
Join Date: Feb 2008
Location: Manchester, TN
iTrader: (2)
Posts: 1,649
Rep Power: 0
85rx-7gsl-se is on a distinguished road
Default

Rtek is easier to install?
__________________
Resident Post Whore
Polluting the environment one revolution at a time.

www.tennspeed.net
Quote:
Originally Posted by Wesley Carlock aka RotoriousRX7
"Rotarys come with built-in traction control, its called no torque"
85rx-7gsl-se is offline   Reply With Quote
Old 06-06-2011, 11:37 PM   #6
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

Quote:
Originally Posted by blaen99 View Post
I'm curious - what's the hesitation in the rx7world for megasquirting?

The Megasquirt is both cheaper and a lot better than the Rtek. But everyone seems to recommend Rtek. Why is that?
Quote:
Originally Posted by 85rx-7gsl-se View Post
Rtek is easier to install?
There's a few reasons. One of which it is easier to install.

Major things to consider with an RTek (I'm talking about v2.1 and higher) is that first and foremost you don't *have* to do any tuning with it. You literally can plug it in and go with the base map already set specifically for your stock car. There are of course a few little extras already included with it which can be viewed on the website. The other benefit is relative to that; you don't have to mess around with other sensors or modifying or constructing a new harness. In the amount of time it takes for someone to build a megasquirt, hook up the harness, tune it, and get all the kinks out. The Rtek could already have made a road trip to DGRR and back again.

This is not to say that megasquirt it not a great product. It is. The number of features and ability of the unit is hard to beat for the price. The balancing factor is the time required and familiarization with both the hardware and software aspect to make it beneficial. There are a slew of other products that fill a niche in the market but are a gradient of prices and performance.

The way I look at it is:

RTek
Megasquirt
Haltech Sprint 500
Motech MR2
Medium Entry Stand alones (Haltech PS1k, Motec M400, etc)
Expert level Standalones (Haltech Pro--Not yet released, Motec M880, etc)
From Scratch ECU's
vex is offline   Reply With Quote
Old 06-07-2011, 02:41 AM   #7
tyler
Rotary Fan in Training
 
Join Date: Jun 2011
iTrader: (0)
Posts: 64
Rep Power: 14
tyler is on a distinguished road
Default

I just mentioned rteck because once u get ur ecu back its just plug and go. If I didn't have a jspec n374 ecu I would have already sent out for a 1.x version just for the little extra. Plus the do the install and the whole 1.x lins is under 200$
tyler is offline   Reply With Quote
Old 06-07-2011, 07:24 AM   #8
N.RotaryTech
Home-brew Rotary
 
N.RotaryTech's Avatar
 
Join Date: Feb 2008
Location: GooseCreek SC
iTrader: (0)
Posts: 552
Rep Power: 17
N.RotaryTech is on a distinguished road
Default

Tyler,

My set-up is: a mild-street-port S4 6-port motor (9.4 comp rotors), T04 turbo, external wastgate w/10 lbs spring, 720cc secondary injectors, TII AFM, Stock S5 NA ECU, etc.

The build thread link below, start with post #52
http://www.rotarycarclub.com/rotary_...t=12895&page=3

This car has run great for me, even though I have to peddle it around 6 psi cause it has a 10 lbs wastgate spring.
After 6psi it starts running lean.
If I put a TII fuel pump in it, it would probably help.


So assuming you have a TII motor and TII ecu, then making sure you have the TII fuel components, you could run that motor with the 9.7 comp rotors on the stock TII boost (8 psi?) for now until you get a aftermarket ecu.

But don't take my word for it.
My motor is the spawn of 2 to 3 different rotary experiments over the past few years using what I have. One of my rotary friends calls it "satan's rotary", lol.
__________________
'89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior.
'83 RX7, The "this might take awhile" project.
'87 RX7 GXL, Rest In Pieces.
'98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair.
'94 Ford Ranger, daily.
N.RotaryTech is offline   Reply With Quote
Old 06-07-2011, 08:08 AM   #9
85rx-7gsl-se
Mod With The Least :P
 
85rx-7gsl-se's Avatar
 
Join Date: Feb 2008
Location: Manchester, TN
iTrader: (2)
Posts: 1,649
Rep Power: 0
85rx-7gsl-se is on a distinguished road
Default

Where does microtech fit in your list Vex?
__________________
Resident Post Whore
Polluting the environment one revolution at a time.

www.tennspeed.net
Quote:
Originally Posted by Wesley Carlock aka RotoriousRX7
"Rotarys come with built-in traction control, its called no torque"
85rx-7gsl-se is offline   Reply With Quote
Old 06-07-2011, 12:42 PM   #10
tyler
Rotary Fan in Training
 
Join Date: Jun 2011
iTrader: (0)
Posts: 64
Rep Power: 14
tyler is on a distinguished road
Default

Thanks N.RotaryTech. I do have all the fuel parts. But I think I'm going to pickup some spare housings and just swap the block. That way if something does blow I won't have alot of down time
tyler is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:31 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com
Ad Management by RedTyger