E-Force 1590 Kit
Tech Contributor
Joined: May 2005
Posts: 15,575
Likes: 118
From: Conroe Texas
Yes that is correct. My only caveat is that my LS-2 starts with 405 HP, and the LS-3 starts with 430, and I don't know how much difference that 25 HP delta makes to the stress on the fuel system.
Thread Starter
Racer
Joined: Aug 2008
Posts: 335
Likes: 27
From: Yukon Oklahoma
Your question isn't easy to answer. I've personally never seen a stock pump fail from a BAP. Are they out there?....probably but I have not seen one. Does it shorten the life of the pump?...I'm sure it does to some degree but if installed correctly the BAP only raises the voltage when you exceed the 3-4 psi at the switch. How much time do you really think you spend above 3 psi in daily driving? The few failures I've seen have come from the car blowing the fuel pump fuse under the hood in setups where the BAP was installed in the rear fender area at the chassis to pump connector. The solution to that possible failure is a $70.00 Racetronix dedicated fuel pump harness to avoid overloading the pump circuit.
There are hundreds of Vettes running around with BAPs without issue. It's a good alternative to those that don't want to replace the pump.
There isn't much if any cost savings if you are doing the work yourself but if you are paying someone else to swap the pump the BAP value is clear. Query the two high volume centri installers out there and get their spin on this one. They've seen a ton of cars.
There are hundreds of Vettes running around with BAPs without issue. It's a good alternative to those that don't want to replace the pump.
There isn't much if any cost savings if you are doing the work yourself but if you are paying someone else to swap the pump the BAP value is clear. Query the two high volume centri installers out there and get their spin on this one. They've seen a ton of cars.
Thread Starter
Racer
Joined: Aug 2008
Posts: 335
Likes: 27
From: Yukon Oklahoma
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
Found this post with a few negative fews on BAP use.... http://forums.corvetteforum.com/c6-f...fuel-pump.html
Thread Starter
Racer
Joined: Aug 2008
Posts: 335
Likes: 27
From: Yukon Oklahoma
Found this post with a few negative fews on BAP use.... http://forums.corvetteforum.com/c6-f...fuel-pump.html
Safety Car
Joined: Sep 2007
Posts: 3,502
Likes: 82
That's a good question though and I'd say give Edelbrock a call and ask them or better yet....PM forum member/vendor " TJWONG " and ask him. He just recently wrapped up an LS3 A6 install.
Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
I understand that and I understand how the BAP works it only ups the voltage under boost, but what are the chances that my stock pump could or would fail over time from the increased voltage and would there be any warning signs.
Also 62Jeff stated (Post #7) he is running the 1591 kit with out a BAP or swapping out the fuel pump. He stated his tuner said he had no fuel issues so the question is do you really need it if you use his example you could say no.
I'm new the FI world so I'm learning by asking questions.
Also 62Jeff stated (Post #7) he is running the 1591 kit with out a BAP or swapping out the fuel pump. He stated his tuner said he had no fuel issues so the question is do you really need it if you use his example you could say no.
I'm new the FI world so I'm learning by asking questions.
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Ainqik, Powerlabs and I all had pump failures from the BAP.
As to how often you go into boost when daily driving: I just had a kenne bell car here that also needed a fuel system because the BAP wasnt cutting it and that car's boost gauge showed 8 psi every time I pulled away from a stop light. This wasnt even getting on it. I added a parallel fuel system that came on when the car would hit 5psi with a Hobbs switch. I had an LED on the gauge pod and it lit up all the time in casual driving. That should give a hint of how often a BAP engages if it does so at 4psi.
The in tank pump cools from the fuel its in. If you go under 1/4 tank you can overheat the pump.
The MSD votage booster boosts in relation to the boost level rather than the off-on nature of the KB BAP. This may be better for centrif cars but the pos displacement s/c's will see boost and therefore voltage all the time.
As for there being 100's of these out there in use, you count failures to get a failure rate. As I see it, you can piece together a real fuel system for 600 bucks. A BAP costs 400. doing the install yourself will take 2 hours which is a lot less time than replacing a stock pump if it fails or an engine when you go lean under boost.
Dont shoot the messenger. Im not a BAP guy. The way I see it, a lot of kits wouldnt get sold if the BAP technology wasnt very good so all vendors are a bit biased in wanting it to work as advertised.
As to how often you go into boost when daily driving: I just had a kenne bell car here that also needed a fuel system because the BAP wasnt cutting it and that car's boost gauge showed 8 psi every time I pulled away from a stop light. This wasnt even getting on it. I added a parallel fuel system that came on when the car would hit 5psi with a Hobbs switch. I had an LED on the gauge pod and it lit up all the time in casual driving. That should give a hint of how often a BAP engages if it does so at 4psi.
The in tank pump cools from the fuel its in. If you go under 1/4 tank you can overheat the pump.
The MSD votage booster boosts in relation to the boost level rather than the off-on nature of the KB BAP. This may be better for centrif cars but the pos displacement s/c's will see boost and therefore voltage all the time.
As for there being 100's of these out there in use, you count failures to get a failure rate. As I see it, you can piece together a real fuel system for 600 bucks. A BAP costs 400. doing the install yourself will take 2 hours which is a lot less time than replacing a stock pump if it fails or an engine when you go lean under boost.
Dont shoot the messenger. Im not a BAP guy. The way I see it, a lot of kits wouldnt get sold if the BAP technology wasnt very good so all vendors are a bit biased in wanting it to work as advertised.
Last edited by SpinMonster; Sep 9, 2010 at 04:20 AM.
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