Ok guys here it is. Just to recap.
I converted to E85 and went to the dyno for a 3 pull.
Here are my mods:
M62 with 2.8" pulley
Custom Tube Inc Header/Downpipe w/ 1.75" Primaries and 3" collector
Magnaflow 2.5" Cat-back
Siemens 80# Fuel Injectors
HPTuners Custom Tune
Innovative Motorsports Wideband Sensor
K&N Drop In Filter
CX Racing Dual Pass Heat Exchanger
ZZP Dual Pass Endplate
GM Option B Kit
Here are the tune setups for my 3 runs:
Run 1 - 2.8" on 18 degrees of timing. (apples to apples to my 0TTP Stage 1 tune)
Run 2 - 2.8" on 25 degrees of timing.
Run 3 - 2.7" on 25 degrees of timing.
Here are the results compared to the 0TTP Stage 1 tune: SAE
Run 1 - 264whp 245wtq
+7whp
+7wtq
Run 2 - 278whp 255wtq
+21whp
+17wtq
Run 3 - 280whp 260wtq
+23whp
+22wtq
Apples to Apples Premium fuel vs E85SAE
All 3 RunsSAE
2 RunsSTD
Edit
TVS Results w/ 2.9" Pulley and 23 degrees of timing
TVS E85 vs Premium Comparison
E85 Seasonal Blend Changes:
Per federal (DOE) specifications E85 does change the % ethanol vs hydrocarbon by season. The purpose of this is to raise the Reid Vapor Pressure of the fuel for cold starts in flex fuel vehicles (FFV's)- this is done by increasing the % hydrocarbon (gas component) as colder temps are expected.
Here are the normal months changes begin to happen as one moves thru the seasons and the final blend % alcohol for Wisconsin's lattitude;
Sept 1st to Oct 31st - 78%
Nov 1st to March 31st - 70%
April 1st to May 15th - 78%
May 16th to Aug 31st - 83%
(% alcohol is stated in pure terms w/o denaturing gas-- thus the Summer E85 is 85% denatured ethanol but only 83.3% pure 200 proof booze). The months stated above will generally see changes happen near the first day of the month (except May and Sept) unless the weather is holding steady.
