Dual Walbro 450 99-02
Jun 8, 2014 | 08:22 PM
#41
Seems to be working okay. Haven't run it less than 1/2 tank, but again as I've said before this is not a DD. I drive it a couple days a month.
I did recently up the boost to 16.5 psi and wooooh. Thing lays down 2 stripes from 60 until I let off at 100 on 20s lol. Bad news is my injectors now hit 110% IDC.
Obviously the true test will be at the track with a heavy launch off the line. I plan to do it with a full tank of gas. M&H has been delayed with my tires due high demand over recent Memorial weekend, but I should have them within the next 2 weeks.
I did recently up the boost to 16.5 psi and wooooh. Thing lays down 2 stripes from 60 until I let off at 100 on 20s lol. Bad news is my injectors now hit 110% IDC.
Obviously the true test will be at the track with a heavy launch off the line. I plan to do it with a full tank of gas. M&H has been delayed with my tires due high demand over recent Memorial weekend, but I should have them within the next 2 weeks.
Jun 8, 2014 | 09:13 PM
#42
Thread Starter
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From: Dallas
No the walbro has its own check valve.
The hobbs switch should work fine. But the boost controller gives me much more adjustability over the second pump. I can turn it on based on boost or rpm.
The hobbs switch should work fine. But the boost controller gives me much more adjustability over the second pump. I can turn it on based on boost or rpm.
Jun 10, 2014 | 08:51 PM
#43
Jun 10, 2014 | 09:02 PM
#45
Joined: Jan 2006
Posts: 16,282
Likes: 438
From: Huntsville, AL
If your AFR is changing based on the second pump coming on you have a problem somewhere. AFR should never be a product of the pumps coming on or off. If it is, you need it to come on sooner, or you need a better regulator or return line.
Jun 10, 2014 | 09:12 PM
#47
he probably turned the second pump off and logged. Then he did a run with both pumps on?
Sep 5, 2016 | 10:54 AM
#48
Staging Lane
Joined: Feb 2016
Posts: 65
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From: Southeast Texas
I dont remember if this is bad etiquette so if it is just tell me not to revive a dead thread.
Is it a restriction with your setup where the fuel flows through the top of the hat with two 450's? Curious because I was about the run an 8an feed from there to the rail and use factory feed for the return.
Is it a restriction with your setup where the fuel flows through the top of the hat with two 450's? Curious because I was about the run an 8an feed from there to the rail and use factory feed for the return.
Sep 5, 2016 | 01:28 PM
#49
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From: Dallas
I do think it was a restriction. But not enough to limit me to make 1k on E85
The biggest problem is the stock return line and entry into the bucket. It's a huge restriction.
If I was re-doing it, I would run -8 feed and return
The biggest problem is the stock return line and entry into the bucket. It's a huge restriction.
If I was re-doing it, I would run -8 feed and return
Mar 29, 2017 | 10:31 AM
#50
Launching!
Joined: May 2015
Posts: 273
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Phew. Sucker BARELY fit in the tank hole. Got the bed bolted back down and the secondary hotwire kit nearly completely installed. Primed up normally. Basically just got to get the power and ground in the engine bay and hook up the relay trigger to my Eboost street controller. I'm really liking the auxillary output on the Eboost street. It can trigger based on RPM and/or boost so it has much more adjustability than a Hobbs switch. Hell, if I even wanted I could run both pumps continuously.
if i understand the current harness i have from racetronix is that it plugs into the stock harness which has power/ground and that is diverted over to the relay to be used as a trigger which then activates the relay and pulls power from the alternator. im thinking i can just buy the same kit and modify the connector that normally plugs into the stock harness and have that connected to eboost2 aux. is this what you did?
thanks
_zblee