GT500 Fuel system question
01-13-2009, 03:56 PM
#2
6th Gear Member
Join Date: May 2006
Location: Nicely done
Posts: 11,881
hey rockgt, i've read that you do need
to update the tune when you add the
gt500 dual pump kit, i don't understand
why that is, just that it needs to be...
as far as, can you install them and still
drive around safely until you update the
tune? yes, that has been agreed upon...
to update the tune when you add the
gt500 dual pump kit, i don't understand
why that is, just that it needs to be...
as far as, can you install them and still
drive around safely until you update the
tune? yes, that has been agreed upon...
01-13-2009, 08:46 PM
#5
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
you should have the tune adjusted, I'm guessing you have 39# injectors? so the tune has to be adjusted to add more fuel pressure to make the injectors flow better and your MAF may need mapping above the 5800 area
01-14-2009, 05:23 AM
#6
2nd Gear Member
Thread Starter
Join Date: Aug 2007
Location: NY
Posts: 199
Every thing was done by JDM, the pump is maxed out. They tuned everything they could. They had to pull timing out or it would of leaned out earlier.
01-14-2009, 10:24 AM
#7
Retired Mod
Join Date: Jan 2007
Location: Long Island, NY
Posts: 7,658
have the tune updated for sure
timing = power so if the pumps were done and they pullled timeing, they probably were not able to work the tune above the 5800 area, you have around 500 more rpm there to use.
timing = power so if the pumps were done and they pullled timeing, they probably were not able to work the tune above the 5800 area, you have around 500 more rpm there to use.
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