[dadslx]

stupid question but right now im running a c/r of 9:1 i want to achieve 11:1 if i shave my trick flow heads can i achieve that?

[Drick]

Dont think so. Need different pistons

[jam77]

you cant pick up that much by milling the heads

[1slo5.0]

Originally Posted by dadslx stupid question but right now im running a c/r of 9:1 i want to achieve 11:1 if i shave my trick flow heads can i achieve that?

I think a standard Twisted Wedge head can be milled to 48cc safely but you would have to contact Trick Flow to be sure. At 49cc with a stock short block and a .040 x 4.100 head gasket you are looking at about 10.99:1 compression. Its not going to gain you much over the 9.3:1 the 61cc chambers will give you. There are people making big horsepower with stock compression. I'd be looking at other areas to gain more horsepower before I'd mill the heads that much.

[Iownastang]

this sounds like a good time to think about a turbo.

[ryans88gt]

Originally Posted by Darrell I think a standard Twisted Wedge head can be milled to 48cc safely but you would have to contact Trick Flow to be sure. At 49cc with a stock short block and a .040 x 4.100 head gasket you are looking at about 10.99:1 compression. Its not going to gain you much over the 9.3:1 the 61cc chambers will give you. There are people making big horsepower with stock compression. I'd be looking at other areas to gain more horsepower before I'd mill the heads that much.

That's angle milling right? I would imagine that would make one side of the deck sealing surface very thin and cause all sorts of other issues like requiring milling of the intake and poor distributor gear mesh.

[1slo5.0]

Originally Posted by ryans88gt That's angle milling right? I would imagine that would make one side of the deck sealing surface very thin and cause all sorts of other issues like requiring milling of the intake and poor distributor gear mesh.

I am assuming that he has Twisted Wedge heads and I'm also going to assume that is flat milling because you can more volume per amount milled. I could be wrong but this is Trick Flow's specs angle mill .008" per cc; Flat mill .006" per cc. I've never milled a Trick Flow head down to 48ccs but everytime I've ordered a ported head they've asked me what size combustion chamber I wanted and 48cc was always the smallest for Twisted Wedge and R-series heads.

[jam77]

just add a s/c or turbo or maybe n2o and be done

[dadslx]

Well i should probably tell you the rest of my combo. im running a 347 stroker forged bottom end, tfs t/w heads ported, systemax intake. i built the motor with a supercharger in mind but that would pretty much kill the block. if i did decide to brave it and run a power adder i most likely would go turbo for the unique build...just for shit and giggles has anybody ever ran a kenne bell 2.2 supercharger with a twin turbo setup?..i was laying in bed last night thinking that a 5.4 with a twin charger would be pretty kick ass...and would a supercharger off a thunderbird super coupe mount up to a 5.0 block??..found one for 150 that ported off my friends blown engine.

[ryans88gt]

Originally Posted by dadslx Well i should probably tell you the rest of my combo. im running a 347 stroker forged bottom end, tfs t/w heads ported, systemax intake. i built the motor with a supercharger in mind but that would pretty much kill the block. if i did decide to brave it and run a power adder i most likely would go turbo for the unique build...just for shit and giggles has anybody ever ran a kenne bell 2.2 supercharger with a twin turbo setup?..i was laying in bed last night thinking that a 5.4 with a twin charger would be pretty kick ass...and would a supercharger off a thunderbird super coupe mount up to a 5.0 block??..found one for 150 that ported off my friends blown engine.

I saw an article in MM&FF with the twin turbo cobra motor with the eaton still on there. Made 44 PSI and 1100 HP.

[Iwannagofast]

Originally Posted by ryans88gt I saw an article in MM&FF with the twin turbo cobra motor with the eaton still on there. Made 44 PSI and 1100 HP.

yeah i seen that......they said it would have actually made more peak horsepower if the sc would have been replaced with a cobra intake.....but they said with the sc it made a really great torque curve

[dadslx]

thats just nasty..wonder how a boss block would hold up to a setup like that..cause i may just doing that here with next years taxes (2009) but it would be a 347 stroked twin charger

[Iwannagofast]

well i think the boss block is rated at 1200 horsepower right?......if you were really lookin into something that extreme you might as well go ahead with a dart or world block

[baine21225]

i did't know they were rated that high

[Iwannagofast]

i might be wrong

[1slo5.0]

Originally Posted by dadslx Well i should probably tell you the rest of my combo. im running a 347 stroker forged bottom end, tfs t/w heads ported, systemax intake. i built the motor with a supercharger in mind but that would pretty much kill the block. if i did decide to brave it and run a power adder i most likely would go turbo for the unique build...just for shit and giggles has anybody ever ran a kenne bell 2.2 supercharger with a twin turbo setup?..i was laying in bed last night thinking that a 5.4 with a twin charger would be pretty kick ass...and would a supercharger off a thunderbird super coupe mount up to a 5.0 block??..found one for 150 that ported off my friends blown engine.

Well that changes everything. Are the pistons flat tops or dished pistons? With flat top pistons, 61cc chambers, 0 deck, and a .040 x 4.100 head gasket you are looking at about 10.75:1.