Anyone installed a Walbro 400lph pump in a C5?
#23
Former Vendor
Thread Starter
Honestly I just cut everything off even with the pressure line. Then I welded a piece of rod to the piece of sheet metal between all the lines. Then I bent the rod to position the pump at the right location.
#25
Former Vendor
Thread Starter
No problem at all. It's been working perfect too. I know it isn't "Rated" for E85. But there are plenty of C6 Z06 owners running them on E85 for thousands of miles with no issues that I've found.
#27
Former Vendor
Thread Starter
Well after only 100 gallons of fuel my Walbro 400 died. I expected it since it wasn't E85 approved. These cars are so simple to change fuel pumps on I wasn't too sad. The worst part was being stranded an hour from home at 1am lol. I am not 100% sure that the E85 was the cause of the failure but the only parts that were damaged were the brushes which are pretty much the only parts that see constant friction.
I purchased the new Walbro 450 pump and installed it tonight. It is nearly identical to the Walbro 400 except for the wiring. The 485 comes with a delco connector prewired on. I cut it off and wired it into the same plug I installed on my 400.
I also dissected the failed Walbro 400 and found the brushes were completely worn out in only 100 gallons of fuel. There was no brass inside like some have speculated. Here are a few pictures of the guts.
I purchased the new Walbro 450 pump and installed it tonight. It is nearly identical to the Walbro 400 except for the wiring. The 485 comes with a delco connector prewired on. I cut it off and wired it into the same plug I installed on my 400.
I also dissected the failed Walbro 400 and found the brushes were completely worn out in only 100 gallons of fuel. There was no brass inside like some have speculated. Here are a few pictures of the guts.
Last edited by Jeremy@RPMTransmissions; 05-23-2012 at 02:17 PM.
#29
Former Vendor
Thread Starter
#31
Former Vendor
Thread Starter
#36
Former Vendor
Thread Starter
No worries man. No one has flowed the stock C6Z pump and a Walbro back to back. But TJ is running the stock pump in his C6 Z06 and I am running the Walbro E85 pump. We are both making very similar power on E85. They are very similar in flow.
#37
Melting Slicks
he not worried about it getting ate up like yours did?
well since the pump doesnt have the venturi port i suppose i will hold off on putting the tank back in for now.. TONS of other stuff to do
well since the pump doesnt have the venturi port i suppose i will hold off on putting the tank back in for now.. TONS of other stuff to do
#38
Former Vendor
Thread Starter
Nah. The C6Z pump has been proven to be E85 compatible. He has 16,000 miles and nearly 2 years on this pump with E85. So Im assuming it is ok considering how fast my non E85 400 died.
#39
What's the easiest way to get this to work with a stock fuel system, mainly hooking up to stock lines. I'm trying to plan out the best fuel system on a budget while supporting 650rw.