Haltech Forum Area is for discussing Haltechs

Haltech tuning questions

Thread Tools
 
Search this Thread
 
Old 04-15-06, 02:36 PM
  #1  
I have injector envy!

Thread Starter
 
yusoslo's Avatar
 
Join Date: Feb 2004
Location: virginia
Posts: 1,106
Received 6 Likes on 5 Posts
tuning questions

The online haltech manual is not working 100%. I wanted to know how can I change my fuel in PERCENTAGES. Instead of just upping the bar 5 times I want to be able to add say 15% more.

I read in the manual you can do this, but the hotkeys dont show up.

Also the car breaks up when you hold a rpm at idle...say 3k. we got the AF ratio right and it isnt lean. It revs great but when holding the idle I think there is a fuel cutoff happening. The only thing I can think of is my TPS reads fault sometimes when you dont have your foot on the gas. but it registers when you are holding a rpm...so I doubt it is directly related.
Old 04-15-06, 08:42 PM
  #2  
EFI Tech Wannabe

iTrader: (1)
 
Claudio RX-7's Avatar
 
Join Date: Sep 2003
Location: D.R., USA, the world...
Posts: 2,405
Likes: 0
Received 4 Likes on 4 Posts
Originally Posted by yusoslo
The online haltech manual is not working 100%. I wanted to know how can I change my fuel in PERCENTAGES. Instead of just upping the bar 5 times I want to be able to add say 15% more.

I read in the manual you can do this, but the hotkeys dont show up.

Also the car breaks up when you hold a rpm at idle...say 3k. we got the AF ratio right and it isnt lean. It revs great but when holding the idle I think there is a fuel cutoff happening. The only thing I can think of is my TPS reads fault sometimes when you dont have your foot on the gas. but it registers when you are holding a rpm...so I doubt it is directly related.
What ECU is this? did you calibrate your throttle properly? does it work right or if you press it back to its closed position does it move back a little?
Old 04-15-06, 09:09 PM
  #3  
I have injector envy!

Thread Starter
 
yusoslo's Avatar
 
Join Date: Feb 2004
Location: virginia
Posts: 1,106
Received 6 Likes on 5 Posts
This is the E6K ecu. I am using a s5 tps on a s4 throttle body. The tps was calibrated properly and the tps sits even and flush with the "cam" on the throttle shaft.

it reads a value of 6 at first untill I recalibrate it. When I floor it I get a reading of about 82.

at idle it occasionaly goes between 0% throttle input to fault. but never ever reads fault when getting on the gas. It just seems sensitive at the idle area.

The hot key for adding injector % would be a huge help
Old 04-15-06, 10:52 PM
  #4  
'Tuna'

 
crispeed's Avatar
 
Join Date: Feb 2001
Location: Miami,Fl,USA
Posts: 4,637
Likes: 0
Received 3 Likes on 3 Posts
Originally Posted by yusoslo
This is the E6K ecu. The hot key for adding injector % would be a huge help
'Alt' 'P'
Just enter the % increase you want. For less fuel you'll enter a minus in front of the % amount for example 5% less fuel would be Alt-'P" and enter -5. Remember the % increase/decrease is based on the actual injection time so if you were to add 5% and wanted to remove the 5% of fuel added it would minus the fuel from the new injection time. For example lets say injection time was 50 ms and you added 10% to that then the new injection time would be 55ms but if you were to remove 10% from 55ms then the new injection time would be 49.5ms.
I hope that helps.
Old 04-16-06, 05:43 PM
  #5  
I have injector envy!

Thread Starter
 
yusoslo's Avatar
 
Join Date: Feb 2004
Location: virginia
Posts: 1,106
Received 6 Likes on 5 Posts
thanks for that info.

Are there any other pointers out there for tuning? My friend has been doing this for 4 years never blown up a motor. But this is his first rotary.

I have the hitman stock map on a S4 with E6K. Wastegate is ported. Full catback exhaust.

WE can take care of the fuel. I was wondering do I need to mess with the stock timing maps as far as spliting etc etc. I will be running 12lbs on the stock S4 turbo. I think the stock timing in hitmans map will be sufficient. Am I horribly wrong?
Old 04-16-06, 06:43 PM
  #6  
EFI Tech Wannabe

iTrader: (1)
 
Claudio RX-7's Avatar
 
Join Date: Sep 2003
Location: D.R., USA, the world...
Posts: 2,405
Likes: 0
Received 4 Likes on 4 Posts
Originally Posted by yusoslo
thanks for that info.

Are there any other pointers out there for tuning? My friend has been doing this for 4 years never blown up a motor. But this is his first rotary.

I have the hitman stock map on a S4 with E6K. Wastegate is ported. Full catback exhaust.

WE can take care of the fuel. I was wondering do I need to mess with the stock timing maps as far as spliting etc etc. I will be running 12lbs on the stock S4 turbo. I think the stock timing in hitmans map will be sufficient. Am I horribly wrong?
HITman's maps are sometimes conserative, thats his way of making sure you wont blow it up if you abuse it. So you can, if you feel confortable, raise timing a bit to make more power. The split is a tricky part, honestly i cant say enough about it to make an accurate argument on what to set it too. People talk about 15 degrees of split all the way, some people now are talking about less and less split the higher the RPM load, etc., then there's what mazda does, and that is totally unknown to me. I hope to find something somewhere that tells me what they actually do.

Last edited by Claudio RX-7; 04-16-06 at 06:51 PM.
Old 04-18-06, 12:46 PM
  #7  
Lives on the Forum

 
RETed's Avatar
 
Join Date: Feb 2001
Location: n
Posts: 26,664
Likes: 0
Received 16 Likes on 15 Posts
Originally Posted by yusoslo
I am using a s5 tps on a s4 throttle body. The tps was calibrated properly and the tps sits even and flush with the "cam" on the throttle shaft.
You actually pulled all the little cams and springs off the S5 TB and moved it to your S4 TB???
Why not use the entire S5 TB in the first place?


-Ted
Old 04-18-06, 03:07 PM
  #8  
I have injector envy!

Thread Starter
 
yusoslo's Avatar
 
Join Date: Feb 2004
Location: virginia
Posts: 1,106
Received 6 Likes on 5 Posts
it was a TB from a S5 N/A. The throttle cable pulleys where upside down and the oil metering pump wouldnt match up.

Main reason I have ported, knife edged, and TB mod'ed the S4 TB so it was easier to fab up a bracket.

Also people said you couldnt do it, so I wanted to do it.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Daua118
SE RX-7 Forum
25
12-05-21 04:15 PM
Skeese
Adaptronic Engine Mgmt - AUS
65
03-28-17 03:30 PM
stickmantijuana
Microtech
30
04-23-16 06:37 PM



Quick Reply: Haltech tuning questions



All times are GMT -5. The time now is 04:13 PM.