Problems with 500hp walbro fuel pump
Mar 28, 2017, 01:28 AM
#1
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Problems with 500hp walbro fuel pump
hi I have a Evo 4 with a 6 engine running on stock Evo 4 ecu and have just put a 500hp walbro fuel pump in and will hit 6,000 rpm and start struggling for fuel. Have 560cc injectors installed and a evo 6 ecu ready to be installed. Any ideas on what the problem could be?
Mar 28, 2017, 06:01 AM
#2
EvoM Community Team Leader
Walbros are rated in liters per hour not hp, which one are you using?
Mar 28, 2017, 09:05 AM
#3
Evolving Member
Are you running 560s on an Evo 4 ecu? Thats your issue. The Evo 4 ecu is scaled for the Evo 4 510cc that come stock. The car will drive like **** under load. You need to run the 6 ecu and injectors simultaneously, or run the 6 ecu and then scale it for 510s.
Mar 28, 2017, 01:21 PM
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I've been running the 560 injectors for a while now on Evo 4 ecu and standard fuel pump and was running fine (no power increase) until I put the walbro pump in. Cheers for the help
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