Boostane, Torco, and VP's Octanium (unleaded) all work well in my testing. My PBD race tune currently runs 22.75* of spark, and I can get all of that spark with 1 can of any of those I listed to about 10-12 gallons of fuel. My recent track outing I left the Boostane at home accidentally and only brought a can of VP Racing's Octanium unleaded...but the data log showed full timing on the pull with no knock, so that must be some good stuff. $22 at Advance Auto Parts makes it the cheapest of the three not on sale (Torco can hit $18 a can on sale).

 

MS109 should be totally fine if they leave flex fuel enabled. The oxygenation leaves it around the same as 20-25% ethanol content for stoich.

Out of all the fuels you can buy and how they perform:

1.) C85- hands down the best stuff you can dump in without worrying about problems like methanol would
2.) E98 of any kind
3.) MS109
4.) Pump E85
5.) C16
6.) 93 w/ octane booster

As far as horsepower capability, that's how i'd rate them.

 

Nice times. You're still on stock fuel system, right? Are you planning to daily on 3.5 or just swap in for race days?

 

I think maybe he said that because you don't have enough fuel system for that much extra fuel that MS109 requires.

 

stock fuel system as of now.. I was told fuel is still good to go. the 3.5 will be a track only setup. I can't get e85 down here and I'm not running boostane all the time.

 

will the lucas produce the same results as the others?

 

Lucas worked well in testing with my street tune (thread on this forum), but I've never tried it with my full timing race tune. I ought to give it a go one of these days, but for the OTC products you can get locally it is one of the best and certainly the cheapest. I've tested it down to 1/2 bottle to a full tank (23 gallons) and it gave me a full 18.5* of timing on my street tune when mixed with 93...when I'd normally see between 15-16 on pump alone, so I imagine a full bottle to 10 gallons should offer a nice bump in octane. The bottles are about $8 and are 15oz, so two of them to 10 gallons would still be cheaper then any of the other "race" options. Judging by how orange they make my plugs, Lucas has a lot of MMT in it lol.

Right now the cheapest "race" product I can recommend based on my testing is the aforementioned VP Racing octanium @ $22 a bottle. If I get a chance to do some street logs with my latest track tune, I'll test Lucas.

 

Well, not a great day at the track. 4hr tow to the track. Decided to run the truck first pass on the stock whipple tune. Even with advance track off, it wouldnt let it do a real burnout. Spun hard off the line, got to the 3-4 shift and it missed it, looking over the datalogg it tried 3-4, then 3-5, gave up and went to neutral. I changed a few parameters in the tune, disabled the traction control system, cooled it down and went back out. Did a good burnout, launched it off at about 1200rpm, it hooked good 1.68 60ft, picked both tires off the ground, shifted much better got to just before the eigth and the new “1000 hp” rated driveshaft broke in half and beat the bottom of the truck to hell. Was a much longer 4hr tow home.

The pluses of the day were it wheelied on stock suspension, pretty happy with a 1.68. On the brakes through the 1/8 it went a 7.4?

Cons were transmission tune is a mess from whipple, lots more parts to replace, on the stock pulley and tune from whipple, 1/2 tank of fresh 93 octane and a can and a half of boostane it was seeing some knock..

Glad i have the winter to sort through it. Guess my twin turbo 4wd project is going to have to wait a little longer.

 

Pulled both wheels up on a 1.68 60’?
No it didn’t. lol

 

Was it a 2 piece driveshaft? Any pics?
Sucks to hear that happen man hopefully the damage isn't too major.