MAF and lid for Trans Am LS7 swap
02-02-2012, 03:27 PM
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MAF and lid for Trans Am LS7 swap We are installing the LS7 in the next few weeks. The LS7 has stock heads, stock intake, Katech Torquer LS7 cam, 1 and 7/8 Kooks long tubes (engine dyno made 619 HP/578 Torque). The car ('98 TA vert) has a rebuilt T56 M6, new drive shaft, new 9" with 411's, SFC's, LCA's, and torque arm. We plan to give it light spray 100-150 shot max. We are considering speed density tuning. But, I am concerned about the temp fluctuations in South FL. And, I do not have a stock LS7 MAF. So, I am favoring using an aftermarket 100mm MAF. What MAF should I run with the LS7 (TSP vs. Lingenfelter)? Also, how can I get more air into this set up? Is it worth cutting up the front end to route more air into the MAF. I know most cars with smaller cubes (LS1) just have a FTP or SLP lid. But, with the 427, is it worth trying to get more air from below (Blackwing, SS, Chris1313, etc) or even a custom CAI through the fogs or cut center section?
02-02-2012, 09:33 PM
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Will you be running this car at the track? I have 2000 Formula with a 427 but have TFS 235s. I'd love to see how are cars compare (Ls7 heads versus TFS 235s). When I built mine I wasn't sure which heads to go with. Good luck.
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02-06-2012, 08:33 PM
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Stock LS7 heads flows 350CFM at 600 lift on the intake and don't know about TFS , 150 shoot is much on that bottom end , The LS7 valves intakes are not that strong to hold up that more power , I seen many of LS7 with stock valves falls and damaged the motor by falling the intake valves , Second thing the pistons are not strong and has weak top , third thing the rods bolts are very light and can't handle that much power of shoot
02-13-2012, 06:28 PM
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Stock LS7 heads flows 350CFM at 600 lift on the intake and don't know about TFS , 150 shoot is much on that bottom end , The LS7 valves intakes are not that strong to hold up that more power , I seen many of LS7 with stock valves falls and damaged the motor by falling the intake valves , Second thing the pistons are not strong and has weak top , third thing the rods bolts are very light and can't handle that much power of shoot
02-13-2012, 07:01 PM
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