Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads?
06-26-2003, 11:52 AM
#1
Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? I know I cant make up my mind 
I made the numbers in my sig without LS1 edit just leaned it out with my old Maf Translator so I know there was more power there. Since I am doing a head swap I figured theres no better time then now to change a cam. So with LS1 edit tuning and these heads is it worth the gain? I would think this combo could put out 450rwhp plus on a M6 since it puts out around 400-420 I think with just a cam. Another thing thats holding me back is I was told I will have to flycut the pistions 2/8 of a inch which is only $20 to barrow the tool. Does flycutting the pistions make them weaker? I dont want that since I use nitrous. What kind of rwhp and rwtq do you guys think I could see with this set up?
Decisions....decisions
I made the numbers in my sig without LS1 edit just leaned it out with my old Maf Translator so I know there was more power there. Since I am doing a head swap I figured theres no better time then now to change a cam. So with LS1 edit tuning and these heads is it worth the gain? I would think this combo could put out 450rwhp plus on a M6 since it puts out around 400-420 I think with just a cam. Another thing thats holding me back is I was told I will have to flycut the pistions 2/8 of a inch which is only $20 to barrow the tool. Does flycutting the pistions make them weaker? I dont want that since I use nitrous. What kind of rwhp and rwtq do you guys think I could see with this set up?
Decisions....decisions
06-26-2003, 12:00 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? Are they milled? If so be careful with the piston/valve clearance.
I would say call a GTP supplier with the cam specs and see if it will be a problem.
I would say call a GTP supplier with the cam specs and see if it will be a problem.
06-26-2003, 12:11 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? 2/8" who told you that!? Shouldn't that be called 1/4"... which would be .250", and probably cut right through the piston into the crankcase if you had to cut it that much. I'd think something like .070" to .080" cut would be closer, no telling really without checking PtoV clearance.
06-26-2003, 12:27 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads?
Thats what I was worried about.
I called LG the other day and since the heads are milled he said I will have to flycut them 2/8 of a inch.
I called LG the other day and since the heads are milled he said I will have to flycut them 2/8 of a inch.
06-26-2003, 01:24 PM
#6
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? That's not what LG meant...they said use a 2 & 1/8th cutter tool, thats all..as far as how much you will have to cut depends on valve drop,how much you milled,and the head gasket size...LG know's what they are talking about..just a misunderstood comment...I would do that bro..GTP's and the G5X-2 would make some wicked power..Good luck,
Carter
Carter
06-26-2003, 02:06 PM
#7
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? Stick with the TR224. IMO, it's the best all around cam for H/C setups. Great driveability, awesome power and TORQUE. My buddys C5 with all the bolt ons and 5.3L heads put down 425/411, not bad!
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06-26-2003, 02:13 PM
#8
6600 rpm clutch dump of death Administrator
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? 2 and 1/8 inches or 2.250. That is the diamter of the cutting tool making the cuts. As for depth, you don't need alot.
GTPs and a G5X2 should make some crazy power...
GTPs and a G5X2 should make some crazy power...
06-26-2003, 03:34 PM
#9
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? Sorry guys I must of misunderstood, the guy I was talking to was really busy so I didnt get to talk to him for long. Thats the tool they told me to get and I was guessing thats how much I would have to cut. I dont know exactly how much to cut? I have never flycut a piston so I am trying to get as much info on this as I can.
How much would GTP usually mill the heads?
There 5.7 heads, stage 2, 10.9.1 compression, double springs, titanium retainers.
Thanks guys.
How much would GTP usually mill the heads?
There 5.7 heads, stage 2, 10.9.1 compression, double springs, titanium retainers.
Thanks guys.
06-26-2003, 06:21 PM
#10
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? If you arent sure and you are doing the work yourself I would keep the 224 cam...
Flycutting takes a bit of skill and you have to line everything up right...
Cheers,
Chris
Flycutting takes a bit of skill and you have to line everything up right...
Cheers,
Chris
06-26-2003, 07:04 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? I went through this dilema as well, I was going to stick with my 224 but after I got the heads I really wanted to get the most power out of them as possible so I am going to go bigger. I also have never flycut a piston and as I don't want to take any chances I am going to have it done in a shop.
06-26-2003, 10:03 PM
#12
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads?
I went through this dilema as well, I was going to stick with my 224 but after I got the heads I really wanted to get the most power out of them as possible so I am going to go bigger. I also have never flycut a piston and as I don't want to take any chances I am going to have it done in a shop.
And theres no way I would do this one my own. Right now I am just trying to see if its worth it.
How do you find out how much exactly you have to cut on the piston?
06-26-2003, 11:09 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? with my cam now I dynoed 372 hp and 366 tq to the wheels, This is with my SLP's LT's and 224 cam, I had no cutout, no tuning (not even maft), and the dyno operator stopped it at 6100 rpm. My numbers are not even close to yours so maybe thats what helped push me to get the bigger cam. From the reasarch I did you have to get the tool that is 1 size bigger than the valve you are cutting for, also from what I've read you need .100 clearance to be safe so If you clayed and then measured this would give you an idea of how much to take off. I think someone from TEA (Brent?) had a somewhat detailed explanation of how to do this, I did a search on fly cutting I think to find it. I am still kinda on the wall about keeping my 224 or not but I have already comitted to the install so that is helping to push me through as well.
06-28-2003, 01:47 AM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? The G5x2 has great driveability with the proper tuning. My friend has one is his 99Z, and he loves it. You should check some of the trap speeds people are getting out of that cam. Throw in the G5x2 and spray the car! Give those Supras hell! 
06-28-2003, 07:25 PM
#15
Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads?
Throw in the G5x2 and spray the car! Give those Supras hell!
Trust me I spray the hell out of my car and love to run Supras! From a roll or stop it doesnt matter! I have pulled so many Supras its not even funny.
06-29-2003, 11:45 PM
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Re: Should I switch my TR224 cam to G5X2 to go w/S2 GTP heads? Wicked- I believe that on their H/C setups, Mike @ LGM makes a .070 flycut in the piston with heads that have been decked .030 and are running a 2.00 intake valve.
