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Old 08-21-2019   #1
Paul Workman
 
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Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
Default Ami's Turq Monster dyno'ed

512 HP @ the crank!

Ami's curiosity regarding her ZR-1's HP finally satisfied.

Ami's Z has a history of owners and modifiers before it came to sleep in our garage.

Lots of stuff including: headers, porting (somewhat conservative by "modern" standards), cams, B&B cat-back, SW X-pipe, 3" exhausts, coil-overs, roll cage, diffuser, Hurst shifter, 410 gear, and LED conversion (in progress). But, often asked (usually soon as ppl hear it idle), "How much horsepower does it put out?

Yesterday, with the help of Marc Haibeck and the Dynojet at D&M Corvette, Ami could fill in that blank! On first pull it made 433 HP at the wheels (graph to follow when available), and after some adjustment to the timing, the final pull put the (stock bottom 350 cid LT5) at 435 @ the wheels & (app) 512 hp @ the crank (using 15% power train loss). We all were very pleased, knowing too there may be another 20+ more to be had IF and when the heads are also ported, including along with bringing the rest of the induction to "FBI spec"

The pavement was wet from a passing weather front, so we didn't get to play on the way home (drag radials, ya know...). But, the air WAS a cool 68º and she was feeling very frisky - looking for trouble should we "let the dawgs out"!! Another (dry) day will come.
Attached Images
File Type: jpg Dyno day 1.jpg (179.1 KB, 99 views)
File Type: jpg Dyno day 2.jpg (193.7 KB, 102 views)
File Type: jpg Dyno day 3.jpg (177.1 KB, 104 views)
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Good carz, good food, good friendz = the best of timez!

90 #1202
"FBI" top end ported & relieved
Cam timing by "Pete the Greek"
Sans secondaries
Chip & dyno tuning by Haibeck Automotive
SW headers, X-pipe, MF muffs

Former Secretary, ZR-1 Net Registry

Last edited by Paul Workman; 08-21-2019 at 08:14 PM.
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