Best method for FI fueling.
Best method for FI fueling. Been having trouble deciding on the what fuel system to run. Priority is given to simplicity and cost effective. My goal is 650-700 RWHP. However its hard to say what the car will really make because this particular combo has not been done yet. I have a few ideas and MANY hours of research.
1) Use the stock bucket with a Bosch 044 modified with a sock and a full return.
2) Use current bucket with Walbro 255 (bypassing the stock restrictive filter) with a direct line to feed an inline Bosch 044 to a full return.
3) Surge tank being fed by stock tank. Two external Walbro 255s with a boost referenced hobs switch.
4) Two internal Walbro 255 in stock bucket. Boost referenced hobs switch.
I listed them in the order of preference. There was a guy that did the first setup in a GTO and he was at the limit with 650 RWHP. However this was not with a return style system so Im guessing the was more room for the pump to grow.
1) Use the stock bucket with a Bosch 044 modified with a sock and a full return.
2) Use current bucket with Walbro 255 (bypassing the stock restrictive filter) with a direct line to feed an inline Bosch 044 to a full return.
3) Surge tank being fed by stock tank. Two external Walbro 255s with a boost referenced hobs switch.
4) Two internal Walbro 255 in stock bucket. Boost referenced hobs switch.
I listed them in the order of preference. There was a guy that did the first setup in a GTO and he was at the limit with 650 RWHP. However this was not with a return style system so Im guessing the was more room for the pump to grow.
external pumps suck I'd go with option 4. Why is it last on your list?
A single pump isn't likely to meet your goals.
Personally, I dislike external pumps for two reasons: First, they are noisy as heck, and not a fun kind of noise like an exhaust. Second, since they aren't swimming in fuel like the in tank pumps they will get hot and consequently heat up the fuel.
I'd give Lonnie @ Lonnie's Performance a call. He knows this stuff too well!
A single pump isn't likely to meet your goals.
Personally, I dislike external pumps for two reasons: First, they are noisy as heck, and not a fun kind of noise like an exhaust. Second, since they aren't swimming in fuel like the in tank pumps they will get hot and consequently heat up the fuel.
I'd give Lonnie @ Lonnie's Performance a call. He knows this stuff too well!
I would definitely go with the dual walbros. They have been proven. Im running them right now and my car made 754rwhp. I got the Lonnies Performance setup and it is NICE. Give Lonnies a call.
#1 will limit you to approx 650-700rwhp... you will be on the ragged edge with that system & will need some other components to make it work well.
#2 Running pumps in series is not a good combination & is still limited by the smallest pump. A second series pump is usually a cheap band-aid fix to a marginal fuel system. You should never design a system this way.
#3 is very complicated & the most expensive of all 4 ideas, plus it will not work any better than your last choice.
#4 is the way I do them, with many years of proven reliability & they work very well.
I'll be glad to help you out.
Feel free to give me a call if you want to discuss in more detail.
#2 Running pumps in series is not a good combination & is still limited by the smallest pump. A second series pump is usually a cheap band-aid fix to a marginal fuel system. You should never design a system this way.
#3 is very complicated & the most expensive of all 4 ideas, plus it will not work any better than your last choice.
#4 is the way I do them, with many years of proven reliability & they work very well.
I'll be glad to help you out.
Feel free to give me a call if you want to discuss in more detail.
Thanks guys. The reason the dual Walbros are option #4 because it is a bit of a pain with the tiny GTO fuel bucket. Plus I wanted to try something different. I think when it comes to fueling my new setup I shouldnt test theories and just go with whats proven.
