True cost of running E85
I haven't maxed it out yet but boost should be in the 5-6psi range. I just run the stock 3.4 pulley on my maggie. I was at the tuner last weekend, numbers are in sig. You've got it easy though. If I were you I wouldn't mess with a BAP or racetronix harness I'd just drop in a bigger pump, lingenfelter's got them for under $200. The location of your fuel pump makes a swap a reasonable DIY. In '03 they changed the setup to what is now in the C6 and it's a pain.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
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How much power can the stock LS1 rotating assembly, head bolts and my C5 rear end really take? The C5 guys were saying around 500/575 rwhp/fwhp. If the engine and drivetrain can handle more power and boost, I'm all for it.
I'm thinking E85 maxes out at around 590/680 rwhp/fwhp with a single 58psi, 80lb/hr fuel pump and a bsfc of 0.65. Is that an accurate bsfc for a boosted LS1?
http://www.rceng.com/technical.aspx
If that's pretty close to the max the drivetrain can handle, I might go that way.
If the drivetrain can handle a lot more, I'll probably look at either meth or washer fluid.
I'm thinking E85 maxes out at around 590/680 rwhp/fwhp with a single 58psi, 80lb/hr fuel pump and a bsfc of 0.65. Is that an accurate bsfc for a boosted LS1?
http://www.rceng.com/technical.aspx
If that's pretty close to the max the drivetrain can handle, I might go that way.
If the drivetrain can handle a lot more, I'll probably look at either meth or washer fluid.
Last edited by tb30570; Jul 20, 2011 at 06:48 PM.
Should be able to do that much power on straight pump I'd spend all your money making sure you have a GREAT TUNE. Sh*t tunes on pump kills more stock shortblocks than about anything IMO. If you want more power E85 is the way to go, should be able to make 700rwhp if you put some head gaskets/studs in it.
wire, a couple relays......and air compressor fitting.....Childress has a sticky on the tol of this section I think on it.
I've read MM's sticky many times but there's not exactly an exact parts list on that y fitting. I haven't really gone to much effort to go and find everything I need but if there was a parts kit out there I would gladly pay a few extra bucks to save the shopping around. Lonnies does good work but I would like to save the cash and do it myself.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
How much power can the stock LS1 rotating assembly, head bolts and my C5 rear end really take? The C5 guys were saying around 500/575 rwhp/fwhp. If the engine and drivetrain can handle more power and boost, I'm all for it.
I'm thinking E85 maxes out at around 590/680 rwhp/fwhp with a single 58psi, 80lb/hr fuel pump and a bsfc of 0.65. Is that an accurate bsfc for a boosted LS1?
http://www.rceng.com/technical.aspx
If that's pretty close to the max the drivetrain can handle, I might go that way.
If the drivetrain can handle a lot more, I'll probably look at either meth or washer fluid.
I'm thinking E85 maxes out at around 590/680 rwhp/fwhp with a single 58psi, 80lb/hr fuel pump and a bsfc of 0.65. Is that an accurate bsfc for a boosted LS1?
http://www.rceng.com/technical.aspx
If that's pretty close to the max the drivetrain can handle, I might go that way.
If the drivetrain can handle a lot more, I'll probably look at either meth or washer fluid.
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Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
is a bsfc of 0.65 accurate for a boosted LS1?
I'm not sure how much overlap in duration there is between injectors. Should a pump's flow rate be higher than the injector's or can they be pretty much the same?
Can you run a pump at it's listed flow rate or should the pump be run no higher than 80% of it's listed flow rate?
Last edited by tb30570; Jul 21, 2011 at 09:49 PM.
On a turbo I would use a .7 BSFC to be on the safe side
.6-.65 is good on a supercharged car.
I would say 600rwhp on a stock LS1 block is pushing it. But with head studs, good compression, and a dead nuts tune, you could be alright. A lot of it depends on the condition of the motor prior to going FI.
.6-.65 is good on a supercharged car.
I would say 600rwhp on a stock LS1 block is pushing it. But with head studs, good compression, and a dead nuts tune, you could be alright. A lot of it depends on the condition of the motor prior to going FI.
is 600rwhp pretty much max for a stock LS1 longblock and C5 rearend?
is a bsfc of 0.65 accurate for a boosted LS1?
I'm not sure how much overlap in duration there is between injectors. Should a pump's flow rate be higher than the injector's or can they be pretty much the same?
Can you run a pump at it's listed flow rate or should the pump be run no higher than 80% of it's listed flow rate?
is a bsfc of 0.65 accurate for a boosted LS1?
I'm not sure how much overlap in duration there is between injectors. Should a pump's flow rate be higher than the injector's or can they be pretty much the same?
Can you run a pump at it's listed flow rate or should the pump be run no higher than 80% of it's listed flow rate?
My fuel system is an in-tank pump, boost a pump, 60lb'ers and of course the meth.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
Anybody running 80#/hr injectors and a 225 LPH Lingenfelter/Walbro fuel pump with a 40 amp BAP (bumps to 80#/hr) with e85?
http://cgi.ebay.com/ebaymotors/Linge...d=249474815467
Last edited by tb30570; Jul 22, 2011 at 05:44 PM.
The BAP and 225 pump with 80lbs injs for 600 rwhp is a band aid. You want reliable 600rwhp don't skip on the fueling; detonation is main reason many guys blow rings and pistons on the ls platform. Get Lonnies kit or DIY.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
how much flow capacity should a pump / dual pump have to support 80lb injectors?
Lonnies has a dual Walbro 255 setup. Check out the Fueling section and read MightyMouse's sticky in there on doing a dual setup yourself. That will pump enough fuel for over 1000rwhp with supporting mods.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
https://ls1tech.com/forums/fueling-i...tion-here.html
I don't have an f-body though. Not sure how different the install would be. It seems that going the meth route might be more simple.
Thread Starter
Staging Lane
Joined: Jul 2008
Posts: 82
Likes: 0
https://ls1tech.com/forums/fueling-i...ump-chart.html
according to this chart, a 67.4 lb/hr pump can support 51.3 lb/hr injectors. The pump has a 31% higher flow rate than the injectors.
