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How to run your LS1 on E85
Rubber fuel lines Runn,
Has anyone had to change the rubber lines in the fuel tank?
I noticed a drop of 5 to 6 psi under idle recently and thought something was going wrong with my fuel pumps. I have 2 walbros; 2nd one comes on under boost. I pulled the pump buckets and barely tugged on one of the lines and it came off!. I checked the other connections and all where loose. Did a little research and appears E85 with alcohol content is eating the rubber from the inside out. I'm looking fuel lines for the pumps that are resistant to alcohol but wondering if you Sweden guys who've been running longer than I (3 years) on E85 have had the same issue?
Has anyone had to change the rubber lines in the fuel tank?
I noticed a drop of 5 to 6 psi under idle recently and thought something was going wrong with my fuel pumps. I have 2 walbros; 2nd one comes on under boost. I pulled the pump buckets and barely tugged on one of the lines and it came off!. I checked the other connections and all where loose. Did a little research and appears E85 with alcohol content is eating the rubber from the inside out. I'm looking fuel lines for the pumps that are resistant to alcohol but wondering if you Sweden guys who've been running longer than I (3 years) on E85 have had the same issue?
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
There is a Rubber type hose made specifically to be alcohol tolerant. It can be ordered from most auto part stores in 1' sections only. It is sae30r10 if memory serves. Freaking expensive at $20 but it works. I put a piece of regular fuel injection hose, sae30r9, in the tank during an emergency once and it lasted 1 day. Stainless works but weeps and you can smell it.
It's either the 30r10 if you want the flexibility of rubber or use hard line.
It's either the 30r10 if you want the flexibility of rubber or use hard line.
Last edited by ericwilloughby; Jun 11, 2011 at 12:06 AM.
I just moved to WI and am going to be converting to E85 pretty soon here. I was going to change the stoich ratio in HPtuners to 9.8 and then ad 2* timing all around. Thing that is a good start? I already tune on lambda and have my stock ratio currently setup for E10.
Runn,
Has anyone had to change the rubber lines in the fuel tank?
I noticed a drop of 5 to 6 psi under idle recently and thought something was going wrong with my fuel pumps. I have 2 walbros; 2nd one comes on under boost. I pulled the pump buckets and barely tugged on one of the lines and it came off!. I checked the other connections and all where loose. Did a little research and appears E85 with alcohol content is eating the rubber from the inside out. I'm looking fuel lines for the pumps that are resistant to alcohol but wondering if you Sweden guys who've been running longer than I (3 years) on E85 have had the same issue?
Has anyone had to change the rubber lines in the fuel tank?
I noticed a drop of 5 to 6 psi under idle recently and thought something was going wrong with my fuel pumps. I have 2 walbros; 2nd one comes on under boost. I pulled the pump buckets and barely tugged on one of the lines and it came off!. I checked the other connections and all where loose. Did a little research and appears E85 with alcohol content is eating the rubber from the inside out. I'm looking fuel lines for the pumps that are resistant to alcohol but wondering if you Sweden guys who've been running longer than I (3 years) on E85 have had the same issue?
http://www.gates.com/brochure.cfm?br...ocation_id=541
Submersible fuel line - SAE30R10
stocked at oreillys, carquest
Submersible fuel line - SAE30R10
stocked at oreillys, carquest
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
The stock lines on fuel injected cars are not rubber. They are plastic. They last forever. Rubber, other than 30r10 wont last 2 days. SS will work for about a year or so but will weep from day 1 and you can smell fuel.
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Teching In
Joined: Nov 2006
Posts: 39
Likes: 0
Has anyone tried running the piggyback systems that just connect between the injectors and stock harness like white lightning e85? It just changes the injector pulse +30% and has an adjustment dial to fine tune it a little. Doesn't change timing thou
Teching In
Joined: Nov 2006
Posts: 39
Likes: 0
They are around 250 but they switch between gas and e85 or mixtures automatically. If u tune it for +25% all the time would u still be able to run gas if u went on a trip and couldnt get e85? Never used the kit myself but threats what they advertise.
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
I looked into white lightning. Cool. $200 for v8. The box must be physically installed into the fuel injector wiring though. It then monitors the oem pulse width and afterward releases it's own extra pulse that is %25 of the original.
A flash tuner, $350, would provide much more tuning ability but should be left in the car so the gas tune could be put back in if you switched back to straight gas. I leave my flash tuner in the car for that scenario even though I tune with hpt now.
Another way is some cars have an adjustable fuel pressure regulator. Just turn it up.
A flash tuner, $350, would provide much more tuning ability but should be left in the car so the gas tune could be put back in if you switched back to straight gas. I leave my flash tuner in the car for that scenario even though I tune with hpt now.
Another way is some cars have an adjustable fuel pressure regulator. Just turn it up.
Last edited by ericwilloughby; Jul 8, 2011 at 05:25 AM.
Fyi
Hptuners has a Beta version with Cranking Spark tables for LS1 and LS2 ECMs. This will help get your car to start up like stock.
I'll play with it this weekend and update my progress. Right now it takes my car 2 to 3 cranks befor it fires up.
Hptuners has a Beta version with Cranking Spark tables for LS1 and LS2 ECMs. This will help get your car to start up like stock.
I'll play with it this weekend and update my progress. Right now it takes my car 2 to 3 cranks befor it fires up.
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
I noticed that also. Since i added 5d to my entire spark table for e-85 use I went ahead and did the same for the cranking spark table. Won't know the results until this winter though. Sometimes it wouldn't start until the second attempt if below 30.
Hate to bump an old thread but what afr's are you guys running part throttle? my buddy is getting amazing gas mileage with e85 on his turbo k24 and so does my tuner (3x mpg) on his turbo integra. Guessing you guys are running very very lean part throttle AFR's. The turbo k24 is running 16-17s afr's part throttle. A full tank last's him a whole week, he drives quite alot.
Hate to bump an old thread but what afr's are you guys running part throttle? my buddy is getting amazing gas mileage with e85 on his turbo k24 and so does my tuner (3x mpg) on his turbo integra. Guessing you guys are running very very lean part throttle AFR's. The turbo k24 is running 16-17s afr's part throttle. A full tank last's him a whole week, he drives quite alot.
Throwing this out there for discussion:
http://ethanolrfa.3cdn.net/dd9e74ce1..._rbm6bdgh3.pdf
pg. 31
"Octane: A minimum octane for E85 is not specified. FFV’s
can tolerate the lower octane of gasoline i.e. 87 (R+M)/2.
There is no requirement to post octane on an E85 dispenser.
If a retailer chooses to post octane, they should be aware that
the often cited 105 octane is incorrect. This number was
derived by using ethanol’s blending octane value in gasoline.
This is not the proper way to calculate the octane of E85.
Ethanol’s true octane value should be used to calculate E85’s
octane value. This results in an octane range of 94-96 (R+M)/
2. These calculations have been confirmed by actual octane
engine tests."
http://www.fuel-testers.com/gasoline...hanol_E10.html
http://ethanolrfa.3cdn.net/dd9e74ce1..._rbm6bdgh3.pdf
pg. 31
"Octane: A minimum octane for E85 is not specified. FFV’s
can tolerate the lower octane of gasoline i.e. 87 (R+M)/2.
There is no requirement to post octane on an E85 dispenser.
If a retailer chooses to post octane, they should be aware that
the often cited 105 octane is incorrect. This number was
derived by using ethanol’s blending octane value in gasoline.
This is not the proper way to calculate the octane of E85.
Ethanol’s true octane value should be used to calculate E85’s
octane value. This results in an octane range of 94-96 (R+M)/
2. These calculations have been confirmed by actual octane
engine tests."
http://www.fuel-testers.com/gasoline...hanol_E10.html
TECH Regular
Joined: Jan 2007
Posts: 411
Likes: 1
From: Louisville KY
Hmm. I dont believe it. E85 takes so much more abuse there is no way it is just 96 octane. The race gas people compare it to c16 and most of those who have the delivery requirements use E85 instead.
I found this in the same article: "The addition of 10 v% ethanol will typically contribute 2.5
or more octane numbers to the finished blend." The #'s dont seem to add up...
I found this in the same article: "The addition of 10 v% ethanol will typically contribute 2.5
or more octane numbers to the finished blend." The #'s dont seem to add up...