Performance issues???
 

I have a quad with the Iquad and have custom tunes installed. The truck has a FASS ddrp pump which seems to work. I do not have a fuel pressure gauge set up on it. The issue I'm having is under hard acceleration it flattens out mid way through. It will catch back up but then flattens back out. Its got a new fuel filter and new in line fuel filter. It doesn't seem to smoke much either.
Here are the tunes that are causing most issues.
Power levels: 5
Timing Limit: 10
Timing Scaling: 100%
Fuel Stretch: 2200
TPS Pump Max: 100%
TPS Pump Min: 30%
Can Max: 100%
Can Min: 30%
Boost Scaling: 20 psi

Smoke tune
Power Levels: 5
Timing Limit: 0
Scaling: 50%
Stretch: 2200
TPS pump max: 80%
TPS pump Min: 3%
CAN Max: 80%
CAN Min: 5%
Boost scaling: 20 psi
Boost is set at 40 psi
EGTS set at 1400
I think I'm dropping fuel pressure but unsure.:argh:

turn off quad and see how it runs

when I put the quad on my mileage tune it runs fine. Should have mentioned that.

I kinda have the same problem with my edge comp called edge n they said it was just turbo lag.

Id say it may be a fuel pressure deal. Id get a gauge asap. A DDRP really isnt a big pump and when demanding lots of fuel it performance can be lack luster

I'm definently getting a pressure gauge. Have to sneak it around the wife. :w2: I wondered if the ddrp had enough umph to keep up. If fuel pressure is the issue, any suggestions on a decently priced supply pump and what size. Thinking raptor 100, but might do fuel upgrades as things start to fail.

---AutoMerged DoublePost---

I'm game if someone has a used 100 gph pump that isn't junk.:tu:

i would get at least a 150 gph pump, i also have a quad adrenaline and in level ten with the 3000 tune my fuel pressure only drops about a half psi. the quad adrenaline calls for a lot of fuel in the higher levels and you do not want to run your vp44 dry.

Go with a raptor 150 if you dont wanna spend the big bucks on the AD or FASS! Thats way you will always have plenty of fuel

yea my truck with the smarty on five and the 150 hp injectors it gives out around 2500 if im in it to win it other then that its ok i dont have a aftermarket lift pump i will soon though!!!

So I have changed the inline fuel filter and the truck fuel filter. Truck is running a lot better. This will have to do til I get some snow to plow.