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Has anyone else logged Fuel Rail Pressure when running E30? Mine has an issue with pressure drop. Commanded WOT FRP is 2900 throughout, and actual FRP in a full pull on mine starts out near commanded, then falls way off to the 1300-1400 range at around 3000rpm, then creeps back up close to...

Thanks. Datalogs show only around 21lbs of boost. Very conservative, but that's ok for now.

A little better today. :) Still just the Lund tune and wheels/tires. No weight removal. 1/2 tank of E30. MAP intercooler/downpipe/intake going on this week. Then it will get turned up a little.

I think it depends a lot on how aggressive the tune writer wants to get with the calibration. I know it's pretty easy to make 400+ ft-lbs on a Dynojet with a fairly aggressive tune with mostly stock parts, sorry I don't know how much different a Mustang dyno reads. I thought those were kind of...

My car just did 307/377 SAE corrected on a Dynojet on E30. Stock everything except an E30 tune from Lund (low boost-21lbs because they don't like to push it with the IATs generated with stock intercooler). Stock paper air filter. EDIT: post 31 in this thread...

Post-burnout, Manifold Charge Temp (post-IC) on one of the runs I logged started at 94*F and ended up at 141* on the big end. Yes, the MAP intercooler/downpipe combo I have coming should help a lot.

Thanks. Quick clutch slip around 3500-4000. Closer to 4000 in the afternoon when the track started working. Reading some of the other posts it seems I'm pretty slow (especially trap speed) for being tuned on E30 and decent DA. Oh well.

Rock Falls Raceway today. My first times down the track with this car. Been a while since I've driven a stick car at the track. No matter. Also they just repaved the track over the winter and it was GREASY until noon or so. Then it got a little better but by then the good morning DA was gone...

My personal opinion, I think most people are overthinking this issue. I've used straight E85 in several vehicles, never switching back to pump gas until it was time to get sell the cars, lol, and I've not had one issue with fuel components due to ethanol being present. Even over winter storage...

I believe most tuners can send you tunes for E30, yes. You don't need any other modifications, you just need to understand how to mix the two fuels to get the desired ratio, and how to load a tune into your car and send the data about how your car is running (via datalogging) to the tuner so...

Cool, thanks Adam. Is that 50hp gain also with adding a little boost? Lund doesn't want to add any boost until I upgrade my IC (I don't blame them, makes sense to me). This was at 21-22lbs.

E30 results! I'm impressed. This is at the same boost level (about 21-22lbs) as the 93 tune, just with a 1/3 E70 and 2/3 93 octane mix (aka E30). The tune was tweaked by Lund for the change in stoich for the fuel and it allows for more spark adder but that was the only change. The car loves it...

E30 results! I'm impressed. This is at the same boost level (about 21-22lbs) as the 93 tune, just with a 1/3 E70 and 2/3 93 octane mix (aka E30). The tune was tweaked by Lund for the change in stoich for the fuel and it allows for more spark adder but that was the only change. The car loves it...

SVE Drift 18x10 (43mm offset) and Nitto 285/40 square setup. The fronts just barely clear the struts. I have 5mm spacers to install for a little peace of mind and to bring them out a little closer to flush. SR Springs. Not quite as much drop as I was hoping for (only around 3/4" all the way...

Bigdave, that looks stunning. Also excellent camera work, I know they're just preliminary shots but still.

Yeah ours is pretty much E70 until May and then they switch to E85. What I've been doing is this (with E70. Actual E85 will require a little less ethanol based fuel). It's gotten my fuel trims very close on my E30 tune so it must be working. Reset the trip odometer when you fill up with...

Thank you! SR Performance springs, 18x10 SVE Drift wheels (43 offset) and 285/40 Nitto 555 tires front and rear.

That's the way all the 5.0 cars with factory intake manifold look. Changing to a Boss/CJ manifold changes the shape totally and flattens the torque curve, so I have to guess it's just in the design of the manifold.

Good plan. I'm guessing it's similar to the online version 'higdominator' posted above?