SBFTECH.com Experienced Small Block Ford Tech

Small Block Talk => Small Block Windsors => Topic started by: 88DragStang on November 07, 2017, 07:07:57 pm



Title: tw 11r 205
Post by: 88DragStang on November 07, 2017, 07:07:57 pm
does anyone have flow numbers over .600 ?
i'm trying to make 600-650hp with 12.5:1 363 with 11r 205 heads


Title: Re: tw 11r 205
Post by: al2 on November 07, 2017, 07:31:57 pm
I recomend bigger heads more compression.


Title: Re: tw 11r 205
Post by: juiced coupe on November 08, 2017, 11:10:04 am
I want to say that standard TW heads start running into geometry issues over 0.700" lift. I don't know if the 11R heads have the same issues as the older versions.

I think your goals are achievable with the TW heads, but would likely be easier and less troublesome with a set of bigger High Ports. If you absolutely need the TW heads, it wouldn't be a bad idea to check with TEA or Fox Lake about their Renegade heads.

I also agree on the compression. At 12.5:1, you are going to have to buy good fuel anyways.


Title: Re: tw 11r 205
Post by: woody on November 08, 2017, 03:17:41 pm
331, 11:1 pump gas, small solid roller, old 205 wedge heads, .644-.644, 248-252, 110lsa, 8000 rpm 601hp if I recall

I built it about 2 years ago

https://youtu.be/quzOq3Gkfmo


Title: Re: tw 11r 205
Post by: 88DragStang on November 08, 2017, 07:08:45 pm
i already have the heads


Title: Re: tw 11r 205
Post by: al2 on November 09, 2017, 06:34:41 am
Woody 8000rpm what internals ?   Thanks


Title: Re: tw 11r 205
Post by: woody on November 09, 2017, 10:39:20 am
I reused the customer supplied crank and rods, I just rebalanced the crank myself. Scat cast 28oz, scat I beam


Title: Re: tw 11r 205
Post by: scienceguy on November 09, 2017, 05:57:00 pm
Even for equal horsepower, the bigger the displacement, the bigger the heads need to be...  and vice versa.  Bigger cubes take a bigger gulp of air.  Smaller cubes will turn more rpm, and take more 'gulps', but each gulp will be slightly smaller...  and not require as big of a cylinder head.

In other words, you'll be better off with those heads on a 363 than a 408+.

Good Luck