Need help with fuel system
Aug 2, 2017 | 08:02 PM
Thread Starter
Joined: Feb 2012
Posts: 193
Likes: 8
From: Canada eh
Need help with fuel system
I'm getting a built block and aiming for more power.
My current setup is walbro 255lph, CJM stage 0 return/regulator, DW 600CC injectors. Stock rails.
What would be the max power I can expect from the current fuel system? What should be upgraded next? rails? Injectors? lines or pump?
Also any idea whats the max power/boost from a Greddy kit with TD05-18G?
Thanks
Aug 3, 2017 | 06:36 AM
Joined: Nov 2002
Posts: 968
Likes: 61
From: Nashville/Tupelo
Have you contacted Charles....THE Charles who is CJM?
Dude knows his fuel ****!
Aug 3, 2017 | 10:42 AM
Joined: Apr 2010
Posts: 6,504
Likes: 1,325
From: North Denver
with a stage 0 and 600cc injectors you may be able to hit 425whp.
upgrade your fuel system, fuel pump, and injectors simultaneously.
what are you using to tune?
Aug 3, 2017 | 10:55 AM
Joined: Nov 2002
Posts: 968
Likes: 61
From: Nashville/Tupelo
I have same fuel pump with 800 injectors and Haltech dynosty tuned my 18g's to 503 whp.
I've wondered if the new walbro (what-is-it?) 485 would be worth a retune or if I'd have to go twin pump for any real gains.
Aug 3, 2017 | 01:48 PM
Thread Starter
Joined: Feb 2012
Posts: 193
Likes: 8
From: Canada eh
Quote:
I have same fuel pump with 800 injectors and Haltech dynosty tuned my 18g's to 503 whp.
I've wondered if the new walbro (what-is-it?) 485 would be worth a retune or if I'd have to go twin pump for any real gains.
What held you back from going for more power? Fuel?
Aug 3, 2017 | 01:53 PM
Joined: Apr 2010
Posts: 6,504
Likes: 1,325
From: North Denver
Quote:
I have same fuel pump with 800 injectors and Haltech dynosty tuned my 18g's to 503 whp.
I've wondered if the new walbro (what-is-it?) 485 would be worth a retune or if I'd have to go twin pump for any real gains.
Quote:
Originally Posted by
SAMzG35
What held you back from going for more power? Fuel?
Do you have a return fuel system? and can you check the duty cycle of your injectors?
my duty cycle on my 1000cc is around 40% so I'd imagine 800cc is around 60% ... which means the fuel pump went first
Aug 3, 2017 | 02:30 PM
Thread Starter
Joined: Feb 2012
Posts: 193
Likes: 8
From: Canada eh
Quote:
Originally Posted by
bealljk
with a stage 0 and 600cc injectors you may be able to hit 425whp.
upgrade your fuel system, fuel pump, and injectors simultaneously.
what are you using to tune?
I'm currently on 461whp & 445wtq on dynojet with my current fuel system tuned with uprev.
New management might be PROEFI.
Aug 3, 2017 | 04:44 PM
Joined: Apr 2010
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From: North Denver
^wow! Can you monitor your duty cycle?
how much boost?
Aug 3, 2017 | 05:13 PM
Thread Starter
Joined: Feb 2012
Posts: 193
Likes: 8
From: Canada eh
Quote:
Originally Posted by
bealljk
^wow! Can you monitor your duty cycle?
how much boost?
Nope. Don't think I can. At 11-12psi stock block looool
Aug 3, 2017 | 06:41 PM
Joined: Apr 2010
Posts: 6,504
Likes: 1,325
From: North Denver
Dear Colorado,
I'd like you to return all the horsepower you've stolen from me.
Your Friend,
James