New project - Page 4 - RX7Club.com - Mazda RX7 Forum

Rotary Drag Racing The place to post your racing stories and info

New project

Reply

 
 
 
Old 06-26-18, 03:57 PM
  #76  
Brap Brap, Fap Fap
iTrader: (7)
 
Shainiac's Avatar
 
Join Date: Jun 2006
Location: Lyme, CT
Posts: 1,442
Thanked 4 Times in 4 Posts
The 4D maps are definitely cool, but I will say that the MS3Pro has every single feature on that list and is $700 cheaper than the Elite 2500

Here's a great example of MS3Pro dome boost control (target boost at launch, boost over time) and traction control (reducing boost and timing to reel in wheel slip)

Shainiac is offline  
Reply With Quote
Old 07-03-18, 10:36 AM
  #77  
Junior Member
 
Join Date: May 2018
Location: Indianapolis, IN
Posts: 28
Thanked 0 Times in 0 Posts
Hell of a build! I'm planning on doing something similar actually. Did you ever put this back on the dyno and figure out what kind of power its making? I'm in the process of buying my fuel system now and was looking into the Magnafuel 4303 as well, but I don't know if it will be enough.
2Lejit is offline  
Reply With Quote
Old 07-03-18, 08:53 PM
  #78  
Rotary Enthusiast
Thread Starter
 
sleeper7's Avatar
 
Join Date: Aug 2006
Location: San Antonio TX/Okinawa Japan
Posts: 1,208
Thanks: 0
Thanked 9 Times in 9 Posts
Last time it was on the dyno it made 560. And I think that was on the high side.

The 28x11.5 are hard on the launch. Making pinion angle adjustments for firday to see if that helps with the launch.

ECU choices are rough.
sleeper7 is offline  
Reply With Quote
Old 07-05-18, 08:15 AM
  #79  
Junior Member
 
Join Date: May 2018
Location: Indianapolis, IN
Posts: 28
Thanked 0 Times in 0 Posts
Originally Posted by sleeper7 View Post
Last time it was on the dyno it made 560. And I think that was on the high side.

The 28x11.5 are hard on the launch. Making pinion angle adjustments for firday to see if that helps with the launch.

ECU choices are rough.
That thing is running great for only making 560whp.
2Lejit is offline  
Reply With Quote
Old 07-07-18, 07:59 AM
  #80  
www.lms-efi.com
iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,077
Thanks: 0
Thanked 18 Times in 14 Posts
My advice would be the Elite 1500 and to setup 2 solenoid dome pressure control and throw a CO2 bottle in there. Regardless of the system you run, the dual solenoid dome pressure control with CO2 is going to give you the best boost control possible and allow you to make very fine adjustments throughout the pass. The added expense of the pressure sensor, extra MAC valve, and the CO2 rig is not that much and money well spent.
C. Ludwig is offline  
Reply With Quote
Old 07-09-18, 05:02 PM
  #81  
Rotary Enthusiast
Thread Starter
 
sleeper7's Avatar
 
Join Date: Aug 2006
Location: San Antonio TX/Okinawa Japan
Posts: 1,208
Thanks: 0
Thanked 9 Times in 9 Posts
Sounds cool but not interested in CO2 boost control.
sleeper7 is offline  
Reply With Quote
Old 07-10-18, 06:51 AM
  #82  
www.lms-efi.com
iTrader: (27)
 
C. Ludwig's Avatar
 
Join Date: Mar 2001
Location: Floyds Knobs. IN
Posts: 5,077
Thanks: 0
Thanked 18 Times in 14 Posts
Originally Posted by sleeper7 View Post
Sounds cool but not interested in CO2 boost control.
Just donít feel like keeping on eye on the bottle?
C. Ludwig is offline  
Reply With Quote
Old 07-10-18, 03:58 PM
  #83  
Automotive Designer
 
SirLaughsALot's Avatar
 
Join Date: Aug 2012
Location: San Jose, CA
Posts: 1,178
Thanked 16 Times in 16 Posts
This thread got me thinking about the Dual 3 Port MAC Solenoid configuration I'm running. It's a Push/Pull Configuration with zero CO2 involvement. Top Solenoid Adds Pressure, Bottom Vents. Here's an image I snagged off of Perrin (Subaru):


Shown above is the dual EBCS Pro system at rest controlling boost to 10psi, which is the wastegate spring pressure. EBCS Pro 1, is blocking boost diverting it through EBCS Pro 2, to the bottom port on the wastegate. The top port on the wastegate is vented to atmosphere through EBCS Pro 1.

Shown above is the Dual EBCS Pro system energized increasing boost beyond 10psi. EBCS Pro 1, is allowing boost to pass through to the top port on the wastegate. This pushes the wastegate closed. EBCS Pro 2 is now blocking pressure getting to the bottom port and relieving pressure from the bottom port on the wastegate. This applies all boost pressure to only the top port keeping the wastegate shut completely.

In this example you can see how this method is very powerful. With a properly designed wastegate with large diameter diaphragm, this can turn a 5psi wastegate spring into one that acts like 30psi! Add to that a very flat boost curve. On this Stage 2 (stock turbo) STI, we are NEVER able to get more than 1BAR / 14.5psi at 6800. With a proper actuator and the Dual EBCS Pro's we were able to hold 1.25BAR / 18psi at 6800. The best part is, there is even more boost to be gained!


So Haltech Elite 2500 w/ Dual 3 Port MAC Solenoids. Gives you three stages of injection, 4D tables (flex fuel yay!), and allows you to go as simple or as complex as possible. Of course, buy through Chris @ LMS-EFI too.

Hey, there's always really high end options like Syvecs S6+/S8 and Emtron KV8. Here's my thread on the Emtron: https://www.rx7club.com/engine-manag...hread-1124954/
SirLaughsALot is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
1cleancym
Build Threads
76
11-29-17 10:38 AM
Nelkel
Introduce yourself
6
11-03-16 08:11 AM
88 REW
Introduce yourself
0
10-16-16 04:03 PM


Thread Tools
Search this Thread
Quick Reply: New project


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.