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FED 262cc TFS program, anyone got dyno or exp with?

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Old Dec 1, 2019 | 02:52 PM
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Default FED 262cc TFS program, anyone got dyno or exp with?

Bought those and wondering if anyone has a build with those?

Planning to run a llsr with short runner intake on a ls3 sbe.

Got those flow numbers from FED;
int. flow
-400' 295cfm
-700' 385cfm
exh flow
-400' 215cfm
-700' 250cfm

Last edited by Johnnystock; Dec 1, 2019 at 03:51 PM.
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Old Dec 1, 2019 | 04:15 PM
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What u wanna know.......I'm a FED factory ls3 stg1 head guy and have refered a whole lot of people on Chris's program.* Been dealing with Chris a while now. You've just got a better head so mores to be expected with a better valve layout. 800 can be had with the factory casting from Chris ....you have a better casting✓ 418 13.2 compression 800+ @ 7800 ^. Again u have a better casting. Intake choice is key....
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Old Dec 1, 2019 | 04:23 PM
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Hope you can stand the Tq hit with shorter runners.
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Old Dec 1, 2019 | 05:01 PM
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Originally Posted by Smokey B
Hope you can stand the Tq hit with shorter runners.
I want to know if anyone has a build with them and what are the results

I have a Goertz1 intake, posted pic in Darth's thread. Stock sbe ls3/stock heads&CR is still climbing hp at 7400 with a cam not made for it. I run a baby 231-236 TSP cam. Been nice so far even with the TQ loss hit; 519rwhp

I want to know if they are going to do more than TFS 255 numbers since I have most of supporting parts; T&D rockers, solid cam spec to come(240-254ish 675'ish lift), higher comp ratio limited by 91oct.
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Old Dec 1, 2019 | 06:27 PM
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Your heads are better than this....hmmmm wonder who refered him...

https://ls1tech.com/forums/generatio...hp-484wtq.html
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Old Dec 1, 2019 | 06:47 PM
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Originally Posted by Smokey B
Your heads are better than this....hmmmm wonder who refered him...

https://ls1tech.com/forums/generatio...hp-484wtq.html
You literally havent answered a thing 😂
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Old Dec 1, 2019 | 06:49 PM
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Originally Posted by Smokey B
Your heads are better than this....hmmmm wonder who refered him...

https://ls1tech.com/forums/generatio...hp-484wtq.html
​​​​That's one of builds that got me interested in going LS3 port vs staying cathedral. Well done!
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Old Dec 1, 2019 | 07:31 PM
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Originally Posted by DualQuadDave
​​​​That's one of builds that got me interested in going LS3 port vs staying cathedral. Well done!
​​​​​​That build made me go llsr!! I don't see why I can't get 590rwhp... :O
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Old Dec 1, 2019 | 08:03 PM
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Heres 1 thing ....swap the heads on the same combo would be = or be better ? I know u want a example of the heads being used....I keep it simple if the heads were swapped would be = or better.

I copied 2 people with my own twist. I had a good reference and baseline. Reason for 2 heads.
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Old Dec 1, 2019 | 08:10 PM
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590... look at the difference in the build. Your intake helps .....More compression? Bigger Cam? You have a reference. Vaccum pump,ewp, etc...adds hp.

Plain and simple look over the reference build & build it better than a stock Ls3 with ported heads and a llsr. Simple!
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