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Old 07-04-2009, 12:03 AM   #31
teej281
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And these gains are over fox lake stage 2 heads...so that alone speaks worlds for these heads because fox lake makes some awesome heads from what ive seen. Just for anyone who didnt read that part of the thread.
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Old 07-04-2009, 12:33 AM   #32
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For a fully built 2v to put down only 305rwhp and 316rwtq isnt that great. And to gain 50rwhp over that number by just doing these heads id say is impressive. And the fact that the power starts out the same and grows gradually over the entire rpm band says a lot about these heads that they dont just make peak power but broaden the hp and torque curve overall which is an awesome feat in my opinon. I would like to see a direct swap from completely stock to these heads and some custom grind cams to see how the power curve and drivability would be affected by these things. I always had extreme faith in these heads and I think after seeing these results, I feel I was right.
The car obviously can put down more than 305 rwhp, but in auto-x there are classes and strict regulations. The class the guy runs in has a strict hp/weight ratio so he had to detune it to qualify.
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Old 07-04-2009, 12:52 AM   #33
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Well if he was running an 11:1 compression with ported heads and cams, why didnt he just do lower compression and not as much cam??? I mean why have all that available and have to detune the car to get it to where you want it to be??? Id say build it to where you want it to be and have it be tuned to full potential to run it. But thats just me.
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Old 07-04-2009, 10:51 PM   #34
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I would go ahead and say it probably not an upgrade for the 4v guys. This is likely a fairly heavily cammed car.. 99-01 cobras can get to the 320 rwhp range with full boltons and with cams can hit around ~370-380 rwhp.

Besides the 4v's tend to make much more linear power than the 2v's which can be good for some applications.

I'd say if you have a 4v keep it a 4v and just add some cams if you still want more n/a power.
You are pretty wrong on a few of the things you said..

2vs ussually make more average power...

4s ussually make more peak...

You will never ever ever ever ever ever make 370 or 380 in a cam only 4v....

350 being the max.. most being in the 330 340 range..

most full bolt on 4vs make 300ish...

the freaks all out ones making 320..
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Old 07-04-2009, 11:23 PM   #35
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Ehh, for the price, I won't be tearing my engine down any time soon, wouldn't even think about it.

I'm so happy with my power level, it's so nice. Just got to get me some tires that get decent traction and maintain good treadlife
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Old 07-05-2009, 02:36 AM   #36
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So what was the final compression it says the heads made it pick up another point
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Old 07-05-2009, 09:28 AM   #37
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... 11:1
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Old 07-05-2009, 12:09 PM   #38
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Im wondering how much power a car would put down with full bolt ons, these heads ported, a better intake manifold, and cams better suited for these heads.

do you guys really think we'll see 390 hp N/A?????

I mean if this car made 350 to the wheels and it had the stock PI intake and unported TFS heads and a cam that wasnt specifically for the heads, do you think we'll see close to the 400 mark?
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Old 07-05-2009, 12:19 PM   #39
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Im wondering how much power a car would put down with full bolt ons, these heads ported, a better intake manifold, and cams better suited for these heads.

do you guys really think we'll see 390 hp N/A?????

I mean if this car made 350 to the wheels and it had the stock PI intake and unported TFS heads and a cam that wasnt specifically for the heads, do you think we'll see close to the 400 mark?
Not to the wheels
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Old 07-05-2009, 02:00 PM   #40
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i bet they can coax another 25 hp out of it..maybe more idk..depends on the porting because arent the combustion chambers too narrow so to port the heads more you gotta bore it out too? not sure if thats true but i heard that as well...
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