Text only | Text with Images

Mazda Rotary Club

General => General Technical => Topic started by: Carrington on April 12, 2007, 06:33:43 PM

Title: Changing map for bigger injectors
Post by: Carrington on April 12, 2007, 06:33:43 PM
Hi guys, Im going to upgrade my primaries to 850cc from 550cc and was wondering if i can lower the duty cycle on them so it wont run to rich so i can drive to get it remapped? Or shall i just take the new injectors and car to a specialist to sort.
 
Any opinion welcome.
 
Thanks
Danny
Title: Changing map for bigger injectors
Post by: shaunwil on April 12, 2007, 08:23:14 PM
You ideally need a after market ecu to change the injectors and i think the primaries are different mount injectors (one side mount, one top mount) if your thinking of using another set of secondaries as primaries.

Do a search for additional injectors, you could increase fueling by adding more injectors and installing an extra injector controller.

How modified is you car ?

Shaun
Title: Changing map for bigger injectors
Post by: Carrington on April 12, 2007, 08:56:11 PM
Sorry i should have said that i have an Apexi PFC, Apexi filters and FMIC. I had a chat to Pip at WGT and he advised 850\'s for primaries if i wanted to increase the boost further the last time it was mapped as im still running stock twins.
 
I just had an idea that i could reduce the duty cycle by a certain amount because i know that im going from 550\'s to 850\'s if you know what i mean.
 
On my track civic i run AEM, on this ECU i can change the injectors and the fuel map will change according.
 
Thanks
Danny
Title: Changing map for bigger injectors
Post by: shaunwil on April 13, 2007, 08:13:09 AM
Your probably best getting pip to sort you out. I think you can swap the primarys size quite easily in the pfc, but im not completly sure about the injectors. Maybe pip can sort you out with the right injectors !

Shaun
Title: Changing map for bigger injectors
Post by: Ricco_04 on April 13, 2007, 03:37:47 PM
Dredging my memory.

You have to change from 550 to 880 like you say but there is also something else which you will have to chenge the figure for - damm it I cant remember.  If I do then I will post back up asap

lowsy brain! :(
Title: Changing map for bigger injectors
Post by: shaunwil on April 13, 2007, 05:04:36 PM
http://www.mazdarotaryclub.com/forums/showthread.php?t=28917&highlight=primary+injector
http://www.mazdarotaryclub.com/forums/showthread.php?t=21868&highlight=primary+injector
http://www.mazdarotaryclub.com/forums/showthread.php?t=8912&highlight=primary+injector
http://www.mazdarotaryclub.com/forums/showthread.php?t=3753&highlight=primary+injector
http://www.mazdarotaryclub.com/forums/showthread.php?t=1119&highlight=primary+injector

The search button is a wonderful thing :D

Shaun
Title: Changing map for bigger injectors
Post by: Carrington on April 13, 2007, 07:12:48 PM
Cheers mate your a genius, iv been searching for ages like "850cc" and "primary 850" but i couldn\'t find anything that told me the lag difference changes.
 
Thanks guys i owe you one.
 
Danny
Text only | Text with Images