Looking at one of Timnyc's 997 builds, they are able to hit 725rwhp on pump 93. See thread:

https://www.6speedonline.com/forums/...-6l-could.html

I'm wondering what it would take for me to replicate that with my 996. My setup has 997 pistons, Pauter rods, 12mm studs, light to moderately ported heads, and k24 18 billets. It would be nice to make that kind of power on regular gas!

 

700 WHP can be done on a stock motor, just swap to 3076 (or equivalent) hairdryers

 

Why wouldn't k24 billets be able to do it. Efficiency limitations? Heat? And we are talking pump gas here also.

 

Sounds good. I plan to run 91 octane fuel + Torco race fuel concentrate which will be around 95 or 96 octane. I ran torco in my old engine for 1500 miles. I went without it for a tank and that is when I blew my heads off. Here is a thread proving Torco: http://www.corvetteforum.com/forums/...ne-accelerator

 

i ran e85 and 3071 and 650 rwhp with tons of room to spare. 700 should be doable on 93. 91 with torco might be risky. no way to exactly calculate the rom

 

Someone tested it in a lab on Corvette forum. This test is 10 gallons of 91 with 1 quart of Torco added. Tested 96.5. Pretty good when Torco is about $11 per quart when purchased bulk. Torco shop Vette has 80k miles on it using Torco with no problems. I have ethanol available locally but I'm not ready to shell out for a fuel system just yet.

 

exactly!

 

Is it not possible to run a gal or two of e85 per 10 of 91 oct? With e85 being up to 110 octane this would give you 93 fairly easily without raising the fueling requirement too much. Does the 996 911 Turbo have an ethanol octane sensor built in?

I don't know if any sponsors on the forum offer something like this, but a lot of guys running N54 335i BMWs use this so that they know the octane on their e85 blend. Not too bad at about 300 for all of the parts, and with it you always know what octane rating you are working with.

http://www.fuel-it.biz/ethanol-analyzer-options/

 

Why not just run race fuel.

 

You can probably get really close on a high boost tune, but you'll have to be very mindful of the TQ numbers so the rods stay straight.

 

They already do that around here to get the gas to 91. More might take away too much capacity for my fuel system.

 

The 996 does not have an ethanol sensor .

As for 700 AWHP on pump 93 ,you would need 3071 or 3076's ,full bolt on supporting mods, fuel system .ported heads .

 

Car is for mixed use and I plan on putting a lot of miles on it with long trips also. Race gas is great for competition but Torco is convenient on a day to day basis.

 

Do you reason that is because of efficiency limitations of the k24 billet? Some maxed out k24 18g cars with stock motors have done 720s or so on e85 with the older 40 lb min wheels. Blouch claims 42-44 lb min flow for their billet wheel, and I am going to port mine.

 

I have older K24 and did over 700rwhp on E85. My backpressure on the turbos was beginning to get high though. These turbo are nowhere near as nice as Sean's billet k24 and are pretty old but brought the number