Walbro 450 Problems with stock FPR
If you do ever fix the fuel system problems you mentioned earlier, I would be interested in knowing what your injector duty cycles are at max. Currently I imagine they are higher than they should be because of the issues. I am going with the FIC high-Z 1650's also, which is why.
I see in your sig "English Racing tuned - Mustang dyno 452whp". Do you have any thoughts on how the Mustang numbers compare with numbers from the ER dynojet?
Did ER have any comments pro or con about the Walbro 450?
I see in your sig "English Racing tuned - Mustang dyno 452whp". Do you have any thoughts on how the Mustang numbers compare with numbers from the ER dynojet?
Did ER have any comments pro or con about the Walbro 450?
Sorry, I just saw this. The mustang dyno I was on reads about 10-12% lower than the local dynojet dyno.
Aaron told me the high IDC's is definitely from the feed line limiting the pump. Aaron didn't have any comment on the pump other than I have enough pump and injector for a good bit more power, I just need better plumbing. For example, FIC rates the injectors at 579whp. Doesn't say what dyno though.
Last edited by letsgetthisdone; Sep 18, 2015 at 01:08 PM.
You keep hearing about large wires, a relay, and splicing into the battery, because that is half of what is required to get the full flow out of either of these upgraded pumps. The other half is upgrading the puny factory lines. Wiring the pump to retain the low voltage feature reduces excessive demands on the return line at low speeds, which allows one to get away with the tiny factory return line.
Those injectors are sufficient for 700+whp (DJ) with E85 and 900whp with gasoline. The rest is up to the fuel system.
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