Hondata s300 and rc750s fueling issue
#1
Honda-Tech Member
Thread Starter
Hondata s300 and rc750s fueling issue
hello everyone
i am having some trouble with a car i'm tuning with a s300 v3 and rc750's.
while i am using the hondata supplied offsets for the rc750's, i cant get the car to have normal idle afrs until i put -90 at the overall fuel trim tab, anything lower then -90 give me afrs of 13.0-12.0
when using crome/neptune offsets i can get normal afrs (13.7-15) with -30 overall FT.
any idea on how to solve this?
all my tests were in open loop. and everything in the options is disabled, this car was running mint with crome,
thanks
i am having some trouble with a car i'm tuning with a s300 v3 and rc750's.
while i am using the hondata supplied offsets for the rc750's, i cant get the car to have normal idle afrs until i put -90 at the overall fuel trim tab, anything lower then -90 give me afrs of 13.0-12.0
when using crome/neptune offsets i can get normal afrs (13.7-15) with -30 overall FT.
any idea on how to solve this?
all my tests were in open loop. and everything in the options is disabled, this car was running mint with crome,
thanks
Last edited by RACEPAK; 02-03-2016 at 02:31 PM.
#3
Honda-Tech Member
Thread Starter
Re: Hondata s300 and rc750s fueling issue
#4
Honda-Tech Member
Re: Hondata s300 and rc750s fueling issue
I'm looking at the map right now. what engine is this? and what did you use for a base map when you created this map?
#5
Honda-Tech Member
Join Date: Jan 2015
Location: Buenos Aires, Argentina
Posts: 168
Likes: 0
Received 0 Likes
on
0 Posts
Re: Hondata s300 and rc750s fueling issue
Do you have an aftermarket fuel pressure regulator? Which fuel pump are you running?
Maybe you need to set a higher value when you scaling injectors (like 800cc)
Maybe you need to set a higher value when you scaling injectors (like 800cc)
#6
Honda-Tech Member
Thread Starter
Re: Hondata s300 and rc750s fueling issue
the car was running on crome and made 370whp on a mustang dyno with my last tune, before the hondata swap, we wanted to "upgrade"
thanks
#7
Honda-Tech Member
Thread Starter
Re: Hondata s300 and rc750s fueling issue
hello
i'm using a genuine walbro 255lph and a holly bolt on regulator,
about the scaling, i find it odd to have the need to "change" the injector size for it to work, i never had this issue on neptune ectune or crome,
thannks
Thread
Thread Starter
Forum
Replies
Last Post
MadVTI
Engine Management and Tuning
7
01-31-2009 10:59 PM
eg:R
Forced Induction
5
06-11-2006 04:10 PM
turbosi03
Forced Induction
4
05-21-2003 06:00 PM