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Lonnie's 340 dual e85 HP limit?

Old 12-23-2018, 05:38 PM
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Originally Posted by 89mulletbird View Post
Whatever happened here? I was planning to build a dual 340 setup and push around 800 to the wheels.
Ded thredů.
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Old 12-29-2018, 04:36 PM
Join Date: Jan 2018
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dual 340 pumps on E85 in a boosted application would have almost no return flow by 900rwhp.

I wouldn't trust twin 340s on E85 beyond 850rwhp personally.

personally I feel lowering base pressure to try and cheat more flow is a disaster waiting to happen. if they're out of flow, dropping 20psi base pressure will only make a marginal difference. that might fool you into thinking its OK because it makes a dyno pull without dropping pressure..... but do a 800m WOT pull on the highway. they'll soon be out of flow and drop pressure.

dropping base pressure should only be done to influence injectors. I.e. if at idle and 4 bar your injectors are all dead time, then lowering base pressure to get some PW back then that is the only reason it should be done.
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