Dyno tune 95% done

Performance modifications, tips & tricks

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CrazyHoe
Posts: 6228
Joined: Tue Feb 19, 2008 8:30 am
Location: Mtl; '98 2dr4x4 Tahoe, L31,Hookers Long T, 0411,EFIlive, 4L80-E,dual 3",marine int+inj

Post by CrazyHoe »

Speeder wrote:
Boosted-Z71 wrote:
Speeder wrote:
Lextech wrote:I'm Jealous. 12.80s @ 113 is moving---Congrats. The best my little 305 has gone is 13.01 @ 110. I'm hoping with a little better starting line technique it will go faster.

Jeff
No! Not a 305 going damn near as fast as a Vortec 350! Say it ain't so Lex, say it ain't so! :lol: :lol: :lol: :evil:

The key here is were talking how fast, not "how damn near fast" There is a difference :lol: :lol: :lol:

Boosted
Lextech wrote:... with a little better starting line technique it will go faster.

Jeff
But he blames the difference on his own launch technique, not the engine.
Sure! Blame everything but the 305! :lol:

Close but no cigar. :P

Speeder
Posts: 10763
Joined: Fri Apr 30, 1999 9:12 pm
Location: 2021 Dodge Durango R/T 2WD, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project

Post by Speeder »

Image

But we digress... back to the original topic...

96-vortec@9psi
Posts: 110
Joined: Sun May 14, 2006 5:32 pm
Location: Kansas City MO

Post by 96-vortec@9psi »

Fast forward to 2016- Added an overdrive crank pulley, all supercharger piping to 3" from 2.5", pro charger race bypass, and a 3 core pro charger race intercooler. I'm seeing -15lbs of boost and made 555/588 to the wheels. Ran out of fuel at about 4500 rpm, have a stock 96 fuel pump and the pro charger in line pump w/ the injectors (42lbs)at 155%. I'm planning on 80lb injectors and a Walbro 450 in tank fuel pump. Thinking of going e85, at the level of boost its E85 or methanol injection. Anyone have any experience with E85

Speeder
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Joined: Fri Apr 30, 1999 9:12 pm
Location: 2021 Dodge Durango R/T 2WD, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project

Post by Speeder »

Basically increase your flow amount by some 40 percent more than you would need on regular fuel. A little research will get the right amount. Ethanol allows more timing, but has a lot less energy density that gasoline. It will also very quickly find any incompatible parts in your fueling system. Being E10 capable does not make it E85 capable. To top it off, E85 is not available everywhere. And, if you care anything at all about the environment and believe the global warming alarmists, ethanol has a much higher net carbon content than regular gasoline due to the extra crap you have to do to make the ethanol.

96-vortec@9psi
Posts: 110
Joined: Sun May 14, 2006 5:32 pm
Location: Kansas City MO

Post by 96-vortec@9psi »

I have a E85 station a mile away. If I go methanol I still have to find/buy it. I DO care about the earth we live on, this truck is not doing any favors. Lucky it's a toy and not an everyday driver, just wanting the best performance.

Speeder
Posts: 10763
Joined: Fri Apr 30, 1999 9:12 pm
Location: 2021 Dodge Durango R/T 2WD, 2008 Colorado work beater, 2003 Dodge Dakota pro-touring project

Post by Speeder »

Heh heh, I just threw the green weenie stuff in as an aside. The fuel system rot and roughly 40 percent more E85 required is more of a concern. I think the multifuel systems jack up the pressure and keep the injectors open longer to run E85, but if you want to run it full time on a forced engine I think you'll be looking at a 3/4 inch to 1 inch diameter fuel line from the tank to the engine.

Hog
Posts: 5025
Joined: Tue Dec 11, 2001 4:00 pm
Location: 1997 Chev ECSB L31 350 1997 GMC Sierra SLE RCSB, Ontario

Post by Hog »

The GEn 3 SBC 5.3's that are flex fuel also use a larger fuel injector, theyw ere a great truck to supercharge on gasoline as they already had the larger injectors.

The cooling effects of E85 are great and help to keep combustion temps under control.

peace
Hog

orange ss
Posts: 218
Joined: Thu Aug 30, 2007 1:12 pm
Location: Emory, Tx

Post by orange ss »

96-vortec@9psi wrote:I have a E85 station a mile away. If I go methanol I still have to find/buy it. I DO care about the earth we live on, this truck is not doing any favors. Lucky it's a toy and not an everyday driver, just wanting the best performance.
Expect about 40hp/50tq going from gas to E85, with proper tuning. E85 is cheap race gas, even with the hit on mpg you have a big enough tank to offset, providing you can keep your foot out of it

Mountain Mike
Posts: 1
Joined: Fri Dec 07, 2018 6:22 pm
Location: Northern Colorado

Post by Mountain Mike »

Sounds like an amazing build. Are you running forged pistons or still stock?

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