cabech984
07-06-2009, 09:12 PM
I had my car dynotuned and it was around 50-100hp off of what I was expecting(350hp/350tq). I figured to lose some power due to the TH400 and 4400 stall. But, the car never went lean during the dyno tune.
Could the tune been based on my weak fuel pump? I dont really know much about tuning.
BTW, the engine is a H/C/Fast 92/92 setup.
Here is a little info on the the fuel system, from the tank
Walbro 340 fuel pump(hotwired)
Stock feed and return lines up to engine bay
-6AN Feed line
Fast LSx Fuel Rails(w/ -8AN crossover
A1000 Aeromotive Regulator
-6AN Return line
I recently had the walbro go out while driving for a few hours one day. Id let the car cool down and the pump would work again. Ive had this problem before with the walbro until it finally gave out. I replaced the bad pump with a Napa Fuel pump and never had the problem again.
Could the tune been based on my weak fuel pump? I dont really know much about tuning.
BTW, the engine is a H/C/Fast 92/92 setup.
Here is a little info on the the fuel system, from the tank
Walbro 340 fuel pump(hotwired)
Stock feed and return lines up to engine bay
-6AN Feed line
Fast LSx Fuel Rails(w/ -8AN crossover
A1000 Aeromotive Regulator
-6AN Return line
I recently had the walbro go out while driving for a few hours one day. Id let the car cool down and the pump would work again. Ive had this problem before with the walbro until it finally gave out. I replaced the bad pump with a Napa Fuel pump and never had the problem again.