Guess My H P !!! - The Dyno & 1/4 Mile Time Thread

Sk8trfred

Member
Feb 27, 2007
45
8
18
MA
Finally hitting the dyno in the AM

408w
AFR205
10.75:1 compression
Super Vic
Holley Sniper
1.75 Long Tube BBK
2.5" bbk catted H-pipe
Dynomax supertubo mufflers
CAM .608 lift 236/244 @.050 112 Separation 109 centerline
Tremec Magnum
3.73 gears
Finally made it today swapped the H pipe to off road X pipe. Made 448 to the wheels. Not bad for a pump gas street car to take the kids for ice cream.

B387CE05-EA76-438D-B006-8708032A40B6.jpeg
 
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Willybill32

Active Member
Jul 16, 2019
172
78
38
Lexington, KY
31384424-7A7E-454A-B5EC-CDDD1A93162E.jpeg
1986 GT, 5.0, 5 speed
E303 cam
Comp Cams 1.6 roller rockers
Twisted Wedge heads
Bassani equal length shorty headers
Edelbrock 65mm throttle body and spacer
BBK 70mm mass air sensor
24 lb injectors
BBK fuel rails and regulator
Stock H-pipe with cats

70384C7D-DFE6-424E-B08A-8AA6B1B8D174.jpeg
 
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faststang90

10 Year Member
Nov 5, 2007
522
14
49
baytown texas
What transmission are you running? That's 30% loss, seems high
c4 transmission. my stall is not right. I had a shop rebuild it and it should be a 3,800-4,000. they charged me 700.00 to rebuild and re-stall. it was stalling about 3,000 before so I just wanted to raise it a little. it only stalls to about 2,500 - 2,700 now. I called and told them and the guy said some time we don't get it right bring it in and we will try again and hug up on me. its a lot of work to pull it out. my camshaft rpm range is 4,200-7,200 but I shift it at 6,500. this calculator online says with the hp and weight it best pass should be a 10.76. so its about a second slower than it should be
 
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