Gains from ported 243 castings
09-14-2010, 09:20 PM
#23
Well, the 60 foot is hurting the time, but the cam is not where it wants to be compression wise, i have 9.8 or so and it wants 11, and the cam will respond to better flow, but i just have to find some tires that will slip a bit but still roll out, my ETs are dead hooking and bgging, i am scared to break the LS1 drive shaft and output shaft in the trans.
The fact is, i could go faster with a smaller cam, same motor in the malibu we put together with the torqer V2 and it traps 96 in the 1/8th but is stalled and has flat tops.
The fact is, i could go faster with a smaller cam, same motor in the malibu we put together with the torqer V2 and it traps 96 in the 1/8th but is stalled and has flat tops.
09-14-2010, 09:42 PM
#24
you could go faster with an auto you mean 
So pop the heads off and shave them a bit or toss on some 243 stockers, no reason to spend the cash on a set of ported ones if you're not going all out on the thing. Especially still running on a stock driveshaft which I broke a few on a trans brake launch with a slower car than you have now. Speed costs, how much you want to spend honestly?
So pop the heads off and shave them a bit or toss on some 243 stockers, no reason to spend the cash on a set of ported ones if you're not going all out on the thing. Especially still running on a stock driveshaft which I broke a few on a trans brake launch with a slower car than you have now. Speed costs, how much you want to spend honestly? 
10-26-2010, 01:53 AM
#30
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One of the best sites ever for info, especially for calculators lol!
http://www.smokemup.com/tech/ls1.php
One of the best sites ever for info, especially for calculators lol!
http://www.smokemup.com/tech/ls1.php
10-26-2010, 08:30 AM
#31
As has been said, it is certainly possible. It will depend not only upon the quality/potential of the work applied to the 243's, but your ability to use the new found power. We've had guys gain more than that in the 1/8th going from as cast 243's to our 226cc full CNC work. However, don't be surprised if it takes an outing or two before you've got everything from tuning/suspension/launch technique/etc. adjusted to really make the added power work. 
10-26-2010, 09:08 AM
#33
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Hell, i see cammed LS1s trapping 87 or so, so i dint think 92 was a bad thing for a junk yard 6.0 with a cam stuffed in, the Trex bogs on my launching at 5100, scared of breaking the drive shaft, i might trap higher if i launch at 6500 maybe? Hell, i am not sure. A smaller cam would do me better honestly. But to hell with that, i like the Trex, im on a budget and it presented itself for 200$.
10-26-2010, 09:32 AM
#36
As has been said, it is certainly possible. It will depend not only upon the quality/potential of the work applied to the 243's, but your ability to use the new found power. We've had guys gain more than that in the 1/8th going from as cast 243's to our 226cc full CNC work. However, don't be surprised if it takes an outing or two before you've got everything from tuning/suspension/launch technique/etc. adjusted to really make the added power work.
10-27-2010, 02:48 PM
#40
Lol I see.. How is the clearance ?? I mean I would mil heads but I don't think you can because how big that cam is.. I know big cams are ushally slugish down low so a ported 243 would be good.. And would make a world of diffrence.. I would look into milling the head maybe it bit more if possible.