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Thread: ATS Tri-Y
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06-29-2008 #1
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- Mar 2005
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ATS Tri-Y
I just want to put a shout out of thanks to Tyler at ATS. Got a LS7 in my 69 vert. Initially had Hooker conversion headers, Super Comps 1 3/4". Using ATS mount brackets, Hooker plates and moved the frame mounts to make the engine sit correctly with my 4l60e. The Tri-Ys initially had one tube that didn't fit at the steering box, common problem. Sent them back to Tyler- reworked them and sent them back next day. Massaged them in. Went for dyno tune- goal was 500whp. Dyno Dyanmics dyno at 100 degress and 50% humidity, 502whp! Not only that but the TQ curve flattened out and increased from 3700-7000. Can't wait to put it on the pavement!
Thanks to Tyler and ATS.
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06-30-2008 #2
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- Mar 2005
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just a bump to put the thanks out to a sponsor. I'll be behind the wheel in two days!
06-30-2008 #3
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- Apr 2006
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- Atlanta GA
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Dave
what engine modifications have you done to the 7?
06-30-2008 #4
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- Mar 2005
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- 467
LME built. "Cleaned" up intake, 90mm TB, ported exhaust, reworked valve assembly-kept the Ti valves Harlan Sharp mod. Wiseco pistons with improved rings, rods and bolts. Honed and worked to 430cc. 11.25:1. 58x wheel on Eagle crank to accommodate the wet sump. Camotion cam. And of course ATS tri-Y. Idles with authority but is very driveable. For comparison a new 08 ZO6 427 with LT headers, cold air intake and of course manual put down 444whp on same dyno-cooler day.
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