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YOUR RESEARCHFuelpump capacity on 996 C2
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Use off the shelf e85 conversion
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Leading evidence: 'Use off the shelf e85 conversion' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use off the shelf e85 conversion' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Hi
Im installing a SC on my 996 C2 -99 and planing on going for ethanol E85 (custom install)
How high is the capacity on the fuelpump on this cars? -will it bee enough for 400 hp of ethanol E85?
I have 46 lbs injectors -will they be enough for 400 hp in the engine on E85 ethanol?
BR
E
Are you using an off the shelf E85 conversion? I would think the manufacturer would have some quidelines on the fuel system then.
There have been some write ups at 6speedonline.com regarding E85 even methanol conversions mainly in the Turbo car sections. You might visit that site and read through posts on this or just post your question there.
Absent any guidelines all we have are numbers.
You are increasing the engine's output 25% over stock. That alone is probably close to the limit of the stock fuel pump, fuel filter, fuel line limits.
But switching to E85 asks even more of the fuel system. The stoichiometric ratio for gasoline and air is 14:1 (the engine makes better power around 13:1) while for E85 it is 9:1. Thus the fuel system will have to deliver around 35% more fuel just to keep the mixture right.
Based on the numbers it does not appear reasonable that the stock fuel pump is up to the task. The stock fuel system may not be up the task.
I guess one could assume the fuel system is up to it and put the car on a dyno and hook up a fuel pressure gage and monitor this and monitor the exhaust gases and look for any signs the fuel system is falling down as the engine's output increases.
'course, this is just a snapshot and does not subject the fuel system to big demand for as long as it probably will experience in the real world.
And it does not tell you if the system while able to meet the demand on dyno can stand up to the rigors of meeting this demand time and time again.
its not a shelf E85 conversion (then I probably wouldn�t need to ask...)
I don�t want any assumptions -I want to KNOW.
I will get the 6speedonline a try
BR
E
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