225cc TFS or 240cc TFS for stroker?
225cc TFS or 240cc TFS for stroker? 225cc TFS or 240cc TFS for a stroker motor? It is a 6.0 iron with a 4.060 bore w/a 4inch stroke and the cam is a 244/248..612/615..112LSA. I will be running 11.75 comp. The 240cc will be av. in a couple of wks or so.(I think ). Brian at TEA has been helpful thru the last 2 wks about both heads. Let me know when the 240cc are ready. 
I dont think there are any flow num#'s yet. I know the 225cc are bad *** so that means the 240cc should be better.
I dont think there are any flow num#'s yet. I know the 225cc are bad *** so that means the 240cc should be better. Last edited by jeremym; Apr 15, 2007 at 07:29 PM.
Originally Posted by jeremym
225cc TFS or 240cc TFS for a stroker motor? It is a 6.0 iron with a 4.060 bore w/a 4inch stroke and the cam is a 244/248..612/615..112LSA. I will be running 11.75 comp. The 240cc will be av. in a couple of wks or so.(I think ). Brian at TEA has been helpful thru the last 2 wks about both heads, but let me know when the 240cc are ready.
Originally Posted by 1936FordPU
Toss the cam out the window and grind another one with your new heads. Get some one who actually knows how to cam the Trick Flow head for your setup.
Last edited by jeremym; Apr 16, 2007 at 05:08 PM.
That's a good cam. A 4-degree split has been shown to work well with the TFS heads.
I'd wait and see what the 240s (or 235, whatever it ends up being) do on the 4.060" bore. If the flow increase is significant in the .400" and .500" lift areas, you'll see quite a bit more power with the same setup.
I'd wait and see what the 240s (or 235, whatever it ends up being) do on the 4.060" bore. If the flow increase is significant in the .400" and .500" lift areas, you'll see quite a bit more power with the same setup.
The bigger heads aren't going to do alot of good if your still using a FAST intake. However, I'd still get them and upgrade the intake when funds are avalible. The cam you have will be fine. It's a proven performer.
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Originally Posted by Beast96Z
The bigger heads aren't going to do alot of good if your still using a FAST intake. However, I'd still get them and upgrade the intake when funds are avalible. The cam you have will be fine. It's a proven performer.
I agree 100% with the above and with what JAKE FUSION also states!
It should be noted the FAST 90 knocks down flow by a percentage, not by a specific flow rate or to a theoretical limit.
It's not like a 360CFM head will only flow 290 with the FAST, nor will the FAST always knock down a head by 30 CFM.
Anyway, I think the FAST is sufficient upto about 600rwhp. A couple of years ago before aftermarket heads were all the rage, ported LS6s and FAST 90s were doing 580+ rwhp in 418-427s without much problem. Going to 441-447 easily pushed them to 600rwhp. Those tuners were/are ECS, Cartek, Vette Doctors, and A&A.
It's not like a 360CFM head will only flow 290 with the FAST, nor will the FAST always knock down a head by 30 CFM.
Anyway, I think the FAST is sufficient upto about 600rwhp. A couple of years ago before aftermarket heads were all the rage, ported LS6s and FAST 90s were doing 580+ rwhp in 418-427s without much problem. Going to 441-447 easily pushed them to 600rwhp. Those tuners were/are ECS, Cartek, Vette Doctors, and A&A.
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Thanks guys. I do have a unported FAST 90/90 and Kooks 1 7/8 w/ 3inch true duels. I will see what the 240cc ( or 235cc) do. My goal is to have 550+rwhp street car on pump gas.
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Originally Posted by jeremym
Thanks guys. I do have a unported FAST 90/90 and Kooks 1 7/8 w/ 3inch true duels. I will see what the 240cc ( or 235cc) do. My goal is to have 550+rwhp street car on pump gas.
Get that baby around 11.4:1 or so and you will be able to run some more timing and will likely have a easier car to tune and much more driveability.
Good luck bro!
btw, get that fast ported...... those heads need to breathe!
That cam is proven on cathedral port 408 setups... I wouldnt put too much worry in it. Now if you where going with a L92 head or something with those huge *** intake valves... then I would be more inclined to question the cam selection.
Originally Posted by JakeFusion™
It should be noted the FAST 90 knocks down flow by a percentage, not by a specific flow rate or to a theoretical limit.
If you have a good quality 93 octane station in your area, there's no reason why you shouldn't go with as much as possiblle. I built mine at 11:85:1 with about 8.5 DCR. Should be fine on 93 and a good tune.
Originally Posted by jeremym
Should I stick to 11:75 comp or should I go with 11:5 comp.? Or what?
Originally Posted by 1936FordPU
How many of these people saying the cam is fine have made a 12.5:1 motor live on pump gas? Ill be waiting for answers....
Originally Posted by Beast96Z
If we were talking about a 12:5 motor here, this might make more sense. With the compression in question, the 244 duration cam will be enough to keep the DCR reasonable and be easier for a "less expierienced" tuner to work with. While it may not be optimal for getting every last HP, the cam in question has proven itself in multiple combinations. I've also seen many "custom" cams fall way short of numbers this cam has put up. As we've already gone over, a good tuner, the compression in question, and this cam will put up good numbers. How much is left on the table from a custom cam may not even be worth the price of said cam. Not trying to be argumentive here, but sometimes cams that are already proven are hard to beat.
Im not sure who you have used to get custom spec'd cams from but the guys we use here make power and have the tuning knowledge behind it. Check out my roomate, V6 Bird's post on that 372 ci ls1 if you have any doubts. No one has made that kind of power in a FULL effort NA motor and this was done with a full blown nitrous setup.
Originally Posted by brad8266
11.9 here on 93 with a half *** tune(still waiting to really give it a good tune). Runs fine, no knock. Get that quench area tight in order to combat detonation.
Originally Posted by 1936FordPU
It will put up mediocre numbers, middle of the road and likely less than stellar.
Im not sure who you have used to get custom spec'd cams from but the guys we use here make power and have the tuning knowledge behind it. Check out my roomate, V6 Bird's post on that 372 ci ls1 if you have any doubts. No one has made that kind of power in a FULL effort NA motor and this was done with a full blown nitrous setup.
Im not sure who you have used to get custom spec'd cams from but the guys we use here make power and have the tuning knowledge behind it. Check out my roomate, V6 Bird's post on that 372 ci ls1 if you have any doubts. No one has made that kind of power in a FULL effort NA motor and this was done with a full blown nitrous setup.
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Originally Posted by brad8266
11.9 here on 93 with a half *** tune(still waiting to really give it a good tune). Runs fine, no knock. Get that quench area tight in order to combat detonation.
I totally agee and as long the dynamic compression is manageable like 8.3 to. 8.6, one can run 93 octane all day long with a good tune and make max power between 11:7 to 11:9 to 1 compression!