Standalone or not to standalone
#63
02-12-2011, 08:40 AM
Join Date: Jul 2010
Location: Long island NY
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Too much noise. But a dyno is about ten minutes away though.
#64
04-10-2011, 10:25 PM
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Location: Houston Tx
Age: 38
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#65
04-11-2011, 06:14 AM
Join Date: Jul 2010
Location: Long island NY
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Still on the fence. I want to use the gt3 cam towers and valve train plus loose the varo. There is quite some weight there in those parts. Plus I do not think I need the varo because my turbos don't start spooling til about 3-3500 rpm.
#66
04-11-2011, 11:17 AM
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Location: Houston Tx
Age: 38
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Rep Power: 185 most just trench the stock towers and use the gt3 cams/synchs
#67
04-11-2011, 01:51 PM
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Location: Long island NY
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Don't know how long the cam will work for. The 996 exhaust cam has a flat bucket and cam lobe profile is ground for that type of lifter. Plus the GT3 lifter is smaller and lighter.
#70
04-11-2011, 08:46 PM
Join Date: Jul 2010
Location: Long island NY
Posts: 3,319
Rep Power: 379
I sent 5 cams out to be cam doctored.
1of5) 996 turbo intake.
2of5) 996 turbo exhaust.
3of5) 997 gt3 exhaust.
4of5) 997 gt3 intake, varo.
5of5) Porsche motorsports intake cam.
Now when I get the all the info back I will see what is the deal. I did run them in the lathe to just check lift and here is what I found. 996 intake and exhaust was about 10mm lift. the 997 gt3 intake cam is about 12mm lift. motorsports intake cam about 12mm. 997 gt3 exhaust cam about 10mm lift. Well all that means about nothing with out the duration numbers. What I do know is the cam profile is different and not sure if you can run the gt3 cams on the 996 buckets. Also the sync's do not line up. The Motorsports cam has only one tab to sync (just a home).
1of5) 996 turbo intake.
2of5) 996 turbo exhaust.
3of5) 997 gt3 exhaust.
4of5) 997 gt3 intake, varo.
5of5) Porsche motorsports intake cam.
Now when I get the all the info back I will see what is the deal. I did run them in the lathe to just check lift and here is what I found. 996 intake and exhaust was about 10mm lift. the 997 gt3 intake cam is about 12mm lift. motorsports intake cam about 12mm. 997 gt3 exhaust cam about 10mm lift. Well all that means about nothing with out the duration numbers. What I do know is the cam profile is different and not sure if you can run the gt3 cams on the 996 buckets. Also the sync's do not line up. The Motorsports cam has only one tab to sync (just a home).
#71
04-12-2011, 05:35 AM
wow, then it must be good to be a poser
I didn't realize that the lambo's had to go motec. Makes sense. F'it, now I will never get one, not even this one:
http://www.flickr.com/photos/kfanciu/5608096998/
ummm, I am pretty sure that code has been cracked for some time now.
so out of those 5, which one is not going on your car?
subscribed, this is an interesting thread......
I didn't realize that the lambo's had to go motec. Makes sense. F'it, now I will never get one, not even this one:http://www.flickr.com/photos/kfanciu/5608096998/
I still don't see the advantage of a using standalone over Bosch 7.8DME, except if you want to tune it yourself. Correct me if I'm wrong but my understanding is that most people, including race teams, can't crack the 7.8 DME code so they use something they can tune like a Motec. Proto and others have built high HP cars on E85 where much greater fuel delivery is needed using 160 lb injectors, extra pump, etc.. The 7.8 DME does an excellent job on big HP cars and you don't have to worry about smog. Heck you can pass emissions with a catless system, if you have the right tune.
ummm, I am pretty sure that code has been cracked for some time now.
I sent 5 cams out to be cam doctored.
1of5) 996 turbo intake.
2of5) 996 turbo exhaust.
3of5) 997 gt3 exhaust.
4of5) 997 gt3 intake, varo.
5of5) Porsche motorsports intake cam.
Now when I get the all the info back I will see what is the deal. I did run them in the lathe to just check lift and here is what I found. 996 intake and exhaust was about 10mm lift. the 997 gt3 intake cam is about 12mm lift. motorsports intake cam about 12mm. 997 gt3 exhaust cam about 10mm lift. Well all that means about nothing with out the duration numbers. What I do know is the cam profile is different and not sure if you can run the gt3 cams on the 996 buckets. Also the sync's do not line up. The Motorsports cam has only one tab to sync (just a home).
1of5) 996 turbo intake.
2of5) 996 turbo exhaust.
3of5) 997 gt3 exhaust.
4of5) 997 gt3 intake, varo.
5of5) Porsche motorsports intake cam.
Now when I get the all the info back I will see what is the deal. I did run them in the lathe to just check lift and here is what I found. 996 intake and exhaust was about 10mm lift. the 997 gt3 intake cam is about 12mm lift. motorsports intake cam about 12mm. 997 gt3 exhaust cam about 10mm lift. Well all that means about nothing with out the duration numbers. What I do know is the cam profile is different and not sure if you can run the gt3 cams on the 996 buckets. Also the sync's do not line up. The Motorsports cam has only one tab to sync (just a home).
so out of those 5, which one is not going on your car?
subscribed, this is an interesting thread......
#72
04-12-2011, 08:31 AM
Join Date: Jul 2010
Location: Long island NY
Posts: 3,319
Rep Power: 379
Not sure as yet. When I find out the exact specs of all cams and if they will accept the different lifter/buckets. There are many things to look at, will the added lift duration help or hurt? Will the head flow more or is there no more to flow (exhaust side). Will it kill the velocity in the header? In any case 1) If it turns out the gt3 cam is the winner then either a standalone or I have to cut all the teeth off the sync wheel and put then back where the turbo cam has them. 2) Same with the motorsports cam. My gut thinks some head work and stock turbo cams may be the winner though.
#73
04-12-2011, 09:09 AM
Not sure as yet. When I find out the exact specs of all cams and if they will accept the different lifter/buckets. There are many things to look at, will the added lift duration help or hurt? Will the head flow more or is there no more to flow (exhaust side). Will it kill the velocity in the header? In any case 1) If it turns out the gt3 cam is the winner then either a standalone or I have to cut all the teeth off the sync wheel and put then back where the turbo cam has them. 2) Same with the motorsports cam. My gut thinks some head work and stock turbo cams may be the winner though.
#74
04-12-2011, 09:46 AM
Join Date: Jul 2010
Location: Long island NY
Posts: 3,319
Rep Power: 379
Yes the sport cams. You mean give me 8k and I will send you some regrinds that have a tad bit more duration but you are at the limit of the lash take up that the lifter/bucket can handle. Those ones? Or the latest ones that you need to put new valves in to take up the space that reducing the base circle created? Haha. I am in motor world to long to drink the punch.
#75
09-23-2011, 04:25 PM
Join Date: Jul 2010
Location: Long island NY
Posts: 3,319
Rep Power: 379
Well members I was playing with some of the parts today and the GT3 lifter is 55 grams lighter then the stock turbo lifter. Times that by 12.... Valves are inbound and if the rain keeps up I will fly cut my pistons this weekend..