rtek 2.1 with 720 +1000cc good enough for bnr stg 4? - RX7Club.com - Mazda RX7 Forum

Go Back  RX7Club.com - Mazda RX7 Forum > Tech and Performance > Engine Management Forum > Rtek Forum
Reload this Page >

rtek 2.1 with 720 +1000cc good enough for bnr stg 4?

Rtek Forum Discuss the Rtek 2.0 and other Rtek ECU's

rtek 2.1 with 720 +1000cc good enough for bnr stg 4?

Reply

 
 
 
Old 07-17-12, 02:14 AM
  #1  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
rtek 2.1 with 720 +1000cc good enough for bnr stg 4?

just like title says i currently have a rtek 1.8 and its leaning out pretty bad on anything past 6psi . i have a walbro and stock FPR . s4 t2 motor stock ports . car made some how 292 on accident on 14psi lol . so im not driving the car anymore till i get this sorted out . let me know wat u guys think . cause i plan to get the 2.1 .
bmwrx7man is offline  
Reply With Quote
Old 07-17-12, 11:42 AM
  #2  
Rotary Enthusiast
iTrader: (1)
 
Join Date: Jul 2003
Location: ..
Posts: 1,310
Thanks: 0
Thanked 2 Times in 2 Posts
The first two things I'd check, is it really 6 PSI, and is it really lean (wideband working correctly).

Lean at 6psi on a stock port and all that injector says there is something very wrong with the car, or the measurements.
turbo2ltr is offline  
Reply With Quote
Old 07-17-12, 12:43 PM
  #3  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
if its not 100 degrees today im gonna take it all apart again . injectors are 2 weeks old tlc perfomance ones . all new fuel lines etc .
bmwrx7man is offline  
Reply With Quote
Old 07-17-12, 12:44 PM
  #4  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
its not the wideband cause i can feel it driving the car . i dont even go into full boost in 4th gear anymore im scared of it just leaning out .
bmwrx7man is offline  
Reply With Quote
Old 07-17-12, 08:52 PM
  #5  
Rotary Revolutionary
10 Year Member
iTrader: (16)
 
sharingan 19's Avatar
 
Join Date: May 2006
Location: Jacksonville, Tampa & Tallahassee
Posts: 3,881
Thanks: 0
Thanked 0 Times in 0 Posts
2.1 has datalogging so you could see what is wrong w/ your setup.
sharingan 19 is offline  
Reply With Quote
Old 07-17-12, 09:51 PM
  #6  
Retired Moderator, RIP
iTrader: (142)
 
misterstyx69's Avatar
 
Join Date: Sep 2005
Location: Smiths Falls.(near Ottawa!.Mapquest IT!)
Posts: 25,758
Thanks: 0
Thanked 89 Times in 80 Posts
I had 1000's on my Stage 3 BNR and I had them maxed out on Duty cycle.
misterstyx69 is offline  
Reply With Quote
Old 07-17-12, 10:03 PM
  #7  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
ahh so 1200s? or 1600 to make my life easy? idk wat esle to check everythings hooked up right . i know my fuel pressure is good because i felt a diffrence when i changed the pump. now for these junk injector brand i got idk .
bmwrx7man is offline  
Reply With Quote
Old 07-18-12, 11:41 AM
  #8  
Rotary Enthusiast
iTrader: (1)
 
Join Date: Jul 2003
Location: ..
Posts: 1,310
Thanks: 0
Thanked 2 Times in 2 Posts
Are you sure you have the injector impedance matched?
turbo2ltr is offline  
Reply With Quote
Old 07-18-12, 10:57 PM
  #9  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
injector resitor box removed these are high impendence injectors . they were fine the first week or 2 . now i think one of them is bad. im gonna take them out tommarow and see wats up . either way im gonna change them
bmwrx7man is offline  
Reply With Quote
Old 07-20-12, 11:11 AM
  #10  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
ok i figured out one of the injecters were junk . so i want todo the 1000cc all around . if any 1 has advice thinks its ok to do let me know i plan on ordering this weekend
bmwrx7man is offline  
Reply With Quote
Old 07-20-12, 11:35 AM
  #11  
Rotary Enthusiast
iTrader: (1)
 
Join Date: Jul 2003
Location: ..
Posts: 1,310
Thanks: 0
Thanked 2 Times in 2 Posts
Seems like a lot of injector for a stock motor, but I'll let some other guys chime in here.
turbo2ltr is offline  
Reply With Quote
Old 07-20-12, 02:51 PM
  #12  
10th Mazda - 10th A.E.
iTrader: (2)
 
Join Date: Aug 2011
Location: Los Angeles
Posts: 215
Thanked 0 Times in 0 Posts
I accidently saw 7 lbs(remember I'm trying to keep it under 5 lbs during break in) and my afr's were 10.9 - 11.5. and I doen't even know what kind of fuel pump that I have, I think it's a Denso.

How much more than my T04e does that BNR stage 4 blow?
Wms10th is offline  
Reply With Quote
Old 07-20-12, 06:49 PM
  #13  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
no idea but it most likely does flow more considering myne is just a hybrid . so would like to know if the rtek can handle 4x1000cc injectors
bmwrx7man is offline  
Reply With Quote
Old 07-20-12, 11:32 PM
  #14  
10th Mazda - 10th A.E.
iTrader: (2)
 
Join Date: Aug 2011
Location: Los Angeles
Posts: 215
Thanked 0 Times in 0 Posts
I'm told it(2.1) can, you just have to compensate with adjustments. It's not as easy as it sounds if you do a thorough job of it.
Wms10th is offline  
Reply With Quote
Old 07-21-12, 08:39 PM
  #15  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
well ill do 1000 secandarys then . now for primarys im trying to figure out
bmwrx7man is offline  
Reply With Quote
Old 07-22-12, 03:22 PM
  #16  
Full Member
5 Year Member
iTrader: (3)
 
rex7tuner's Avatar
 
Join Date: Nov 2007
Location: Oceanside CA
Posts: 97
Thanks: 0
Thanked 0 Times in 0 Posts
Originally Posted by bmwrx7man View Post
well ill do 1000 secandarys then . now for primarys im trying to figure out
dude im sure you'll be good with 750 primaries. maybe even 550's. my buddy was running a T66 precision turbo with cleaned ports on his fd with his stock primaries and 1300 secondaries. so you really dont have to go too big with primaries. especially for a stock port engine.
rex7tuner is offline  
Reply With Quote
Old 07-22-12, 04:35 PM
  #17  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
how about the glse injectors the ones that are 600cc or something? im ordering the 1000cc tommarow .
bmwrx7man is offline  
Reply With Quote
Old 07-22-12, 09:29 PM
  #18  
Full Member
5 Year Member
iTrader: (3)
 
rex7tuner's Avatar
 
Join Date: Nov 2007
Location: Oceanside CA
Posts: 97
Thanks: 0
Thanked 0 Times in 0 Posts
if i remember correctly the gsl-se injectors are 720's?? someone needs to confirm but i think thats wut they r. hmmm
rex7tuner is offline  
Reply With Quote
Old 07-23-12, 01:29 AM
  #19  
Top Down, Boost Up
5 Year Member
iTrader: (7)
 
RotaryRocket88's Avatar
 
Join Date: Mar 2008
Location: San Diego, CA
Posts: 8,719
Thanks: 0
Thanked 2 Times in 2 Posts
gsl-se injectors are 680cc. You can use them on the 720 primary settings, but your mixtures will be 6% leaner at idle and under vacuum/low RPM boost. I would suggest 720cc or 750cc to prevent a ton of tuning the vacuum cells. It's not easy to datalog those areas of the map.

720/1000 may be a little short for ~350 whp. Don't increase primary size; increase secondaries to something like 1200c if you're worried about it. That's about the largest injector controllable on an Rtek 2.x.
RotaryRocket88 is offline  
Reply With Quote
Old 07-23-12, 10:54 AM
  #20  
Rotary Enthusiast
iTrader: (1)
 
Join Date: Jul 2003
Location: ..
Posts: 1,310
Thanks: 0
Thanked 2 Times in 2 Posts
Dont forget that we don't recommend using injectors more than two "steps" apart.
turbo2ltr is offline  
Reply With Quote
Old 07-23-12, 01:04 PM
  #21  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
well im getting a deal on 1000cc i seen people do 350 + on 1000 secondarys . im gonna be getting a meth kit too in coupe weeks . i want to make 320-350 no more . im scared of the rear plate cracking
bmwrx7man is offline  
Reply With Quote
Old 07-23-12, 02:39 PM
  #22  
This sh*t burns oil!
iTrader: (7)
 
Join Date: Oct 2006
Location: Charlotte, NC - USA
Posts: 1,197
Thanked 0 Times in 0 Posts
Originally Posted by bmwrx7man View Post
well im getting a deal on 1000cc i seen people do 350 + on 1000 secondarys . im gonna be getting a meth kit too in coupe weeks . i want to make 320-350 no more . im scared of the rear plate cracking
Thats pushing the utter limits of what rtek can handle, at that range the vaf is maxed out.
SpikeDerailed is offline  
Reply With Quote
Old 07-23-12, 06:36 PM
  #23  
Rotary Enthusiast
Thread Starter
iTrader: (2)
 
bmwrx7man's Avatar
 
Join Date: Jun 2004
Location: cranston rhode island
Posts: 891
Thanks: 0
Thanked 0 Times in 0 Posts
lol damm . so then should i limit it to 300whp saftly ? im not looking too boost more than 16psi or so . i will be leaving it btween 10-14 psi . i just want it to last till winter when i get a real standalone and redo my motor
bmwrx7man is offline  
Reply With Quote
Old 08-01-12, 05:32 PM
  #24  
Senior Member
iTrader: (4)
 
t2ae's Avatar
 
Join Date: Apr 2006
Location: durham, NC
Posts: 504
Thanks: 0
Thanked 0 Times in 0 Posts
yes, i am currently running 550cc and 1000cc injectors with a bnr stage 4. it was running great.....until the ecu took a dump lol. i am running resistors for the injectors
t2ae is offline  
Reply With Quote
Old 08-11-12, 12:00 PM
  #25  
Senior Member
iTrader: (4)
 
t2ae's Avatar
 
Join Date: Apr 2006
Location: durham, NC
Posts: 504
Thanks: 0
Thanked 0 Times in 0 Posts
new ecu will be back next week and i have a tune date on the 31st so ill let you guys know how it is
t2ae is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: rtek 2.1 with 720 +1000cc good enough for bnr stg 4?


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.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: