Ms4 or V.3
10-26-2006, 11:33 PM
#83
Well, according to TEA and LG Motorsports, up to 25hp. I'd say 10-15. That was 2 different phone calls on different days just asking what I was leaving out by not flycutting. After doing it last week, man it's so STUPID to not take the few minutes to get that extra hp, not to mention even better is the crispness, torque, and overall driveability.
10-27-2006, 03:11 PM
#85
Originally Posted by Oh4GTO
Flycutting can also decrease the life of your piston. The edge of the cut on the piston can run much hotter than the rest and cause detonation.
10-28-2006, 12:41 PM
#88
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Yes there is a member on my forum that lost #5 and #7 because of the flycutting that he did. It is obvious from the pictures they were the cause of detonation. The tune also played a role but the lfycutting helped the demise. So its not like if you flycut then you detonate. The conditions have to right and with flycutting they are more likely. This is the only case that I have seen but never really searched for it elsewhere.
Didnt know about the sandpaper trick. I can see how it would work. As far as after market pistons with vavle reliefs, I just thaught they did it somehow differently and the pistons were designed from the beginning to accomodate the vavle reliefs.
Didnt know about the sandpaper trick. I can see how it would work. As far as after market pistons with vavle reliefs, I just thaught they did it somehow differently and the pistons were designed from the beginning to accomodate the vavle reliefs.
Last edited by Oh4GTO; 10-28-2006 at 12:49 PM.
10-28-2006, 02:40 PM
#89
Well, we're talking about edges and not thickness. So if you look, I think the sharp edges are sharper on aftermarket pistons than on my flycut ones. But mind you, I only went .070". That's just a nick in the piston. How deep did he measure and cut? I'd like to know just for the sake of education. But I honestly can't see how he could do it with a good tune.
10-28-2006, 03:14 PM
#90
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http://ls1gto.com/forums/showthread.php?t=30088
Heres one of the links. The tune played a role in the detonation. But that goes towards any setup, a good tune is key. You may need to fatten it up just a hair to keep the rear left cylinders safe with the flycutting. But Im not expert, Im sure your tuner will know better than me.
Heres one of the links. The tune played a role in the detonation. But that goes towards any setup, a good tune is key. You may need to fatten it up just a hair to keep the rear left cylinders safe with the flycutting. But Im not expert, Im sure your tuner will know better than me.
10-28-2006, 05:33 PM
#91
No, I appreciate your input. We studied the #7 cylinder theory on it getting more air. Well, we held a compressor hose up to my intake manifold when it was off the car. THe vast majority of the air cam through the #7 runner. Thanks for the help man. Easy enough.
10-29-2006, 12:53 AM
#94
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Oh ok I see it. Im an idiot.
Back on topic I should be getting my cam and heads in next weekend and hopefully a tune shortly after. Ill start a new thread with a video pics and results.
Back on topic I should be getting my cam and heads in next weekend and hopefully a tune shortly after. Ill start a new thread with a video pics and results.
10-29-2006, 01:10 AM
#95
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Going to pick up the cam in lubbock on wed. I CAN'T WAIT........... Oh yeah the clutch is shot so that will be the next item up.
Now should I get 60lbs injectors or should I get 42lbs injectors the price difference is so small that I think I should just go with the 60lbs run them at a lower duty cycle and not have to worrry about for the future mods.
Now should I get 60lbs injectors or should I get 42lbs injectors the price difference is so small that I think I should just go with the 60lbs run them at a lower duty cycle and not have to worrry about for the future mods.
10-29-2006, 01:27 PM
#96
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You dont think the stock will be able to handle the cam swap? What about head and cam like Im doing? I was inder the ompression that stock injectors were good up to 500RWHP.
10-29-2006, 02:47 PM
#100
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Originally Posted by N4cer
Is this something that you've actually seen proof of? Because I've only heard theories on this and nothing more. And we know the value of internet theories when it comes down to it. Help me out, man. Tell me what you've actually heard of happening other than "it maybe might could" if you don't care. You sound like you know what you're talking about. Although I wonder if you're aware that after flycutting and running a piece of sandpaper on the edge, it's no sharper than any aftermarket piston with valve reliefs.