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

Sk8trfred

Member
Feb 27, 2007
46
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
 
  • Hell Yeah!
Reactions: 1 user
  • Sponsors (?)


Willybill32

But at least it's tight!
Jul 16, 2019
425
199
53
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
 
  • Like
Reactions: 2 users

faststang90

10 Year Member
Nov 5, 2007
522
16
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
 

schwerdt1

Active Member
Sep 15, 2020
155
106
53
Caddo Mills, TX
331R block, Holley HP, 78/75 turbo running on 14lb spring, 120lb injectors on e85. 11r205 heads. 15° timing.
Had it tuned and then dyno'd today at HPP Racing.

793rwhp @ 5500
 

Attachments

  • 20201104_164411.jpg
    20201104_164411.jpg
    496.1 KB · Views: 89
  • 20201104_164415.jpg
    20201104_164415.jpg
    461.1 KB · Views: 95
  • Like
Reactions: 1 user

schwerdt1

Active Member
Sep 15, 2020
155
106
53
Caddo Mills, TX
331R block, Holley HP, 78/75 turbo running on 14lb spring, 120lb injectors on e85. 11r205 heads. 15° timing.
Had it tuned and then dyno'd today at HPP Racing.

793rwhp @ 5500
Now I just have to actually get it in boost myself. Havent gotten on it yet. Wanted to make sure it was all good first. Oh, and try and find a safe street to do so.
 

v8stang289

Advanced Member
Apr 22, 2008
136
116
74
These are from a few years ago, the last time I ran the car.

ETA: just wanted to update. I sold the car a couple months ago, new owner had it dyno'd and it put down 277 RWHP. Seems pretty consistent with the time/MPH

86 GT hatch, 5.0/5-speed
stock 89 shortblock (re-ring and new bearings)
96 explorer GT40 heads -F3ZE casting- with mild port and polish (cleaned up bowls, smoothed transition etc.) with Trick Flow springs
stock rockers
9333pt felpro head gaskets
TFS-1 Camshaft installed dot to dot
Edelbrock Performer EFI intake
65mm explorer TB
67mm FMS egr spacer
Stock 55mm MAF
19 lb 4hole injectors
155lph walbro pump
Cold air intake with K&N conical filter in inner fender(at time of run- stock airbox now)
Flowtech shorty headers, 1 5/8" primaries, 2.5" ball flange
off-road 2.5" H-pipe
Flowmaster 2.5" cat back
A9L computer
17* initial timing
Taurus 3.8 electric fan ( with 3G upgrade)
Stock T-5 (3.35 first gear)
8.8" with 3.73 gears and carbon fiber clutches
225/55/16 falken street tires on pony wheels.

Car should be close to stock weight, has full interior, A/C, P/S, no smog, stock sway bars are on and hooked up, stock suspension with replacement shocks/struts.
Runs were with 1/2 tank fuel and 215lb driver
Temp was mid 60's, elevation of track around 45' above sea level.

13.773 @ 101.463 mph
13.888 @ 101.574 mph

Snapchat-1297225621.jpg


Snapchat-1635783541.jpg
 
Last edited:
  • Like
Reactions: 2 users
Last year I posted a dyno and times with a stock motor and Holley terminator x. This year she got a bit of an overhaul, BUT the dyno was at 5280 feet of elevation vs the previous year at 800 feet of elevation.

Either way, pleasantly surprised with her.
All the same modifications as previously posted with:
Edelbrock intake manifold
TF 170 53cc 11r heads
AFM N41 cam
1.6 TF RR
 

Attachments

  • C4FB1EAB-E84D-492F-8196-6834098F4623.jpeg
    C4FB1EAB-E84D-492F-8196-6834098F4623.jpeg
    275.8 KB · Views: 52
  • Like
Reactions: 2 users
Finally made the first test hits of the year last weekend. This was my best run. 60' and 1/8th was a bit soft but it marched out the back door.
2.9L 4 cyl. BWS300sxe 69/73 turbo. .655 solid roller cam, C4 trans w/8" Coan converter. 8.8 w/ welded axle tubes, 31 spline track lock, 4.10 gear.
20220327_184253.jpg
 
  • Like
Reactions: 1 user

Mr.Kelley

Active Member
Aug 9, 2019
158
105
53
San Diego Ca
Went to the Antique Drags this weekend so now I can post here.
62 Falcon 2dr 2790lbs with me in it
302 roller from an 80s Town car with dished low compression stock pistons
E4 heads, stock HO cam, Explorer intake, 19lb injectors, iron exhaust manifolds into 2" single
4R70W with a Quick2 controller.
8" trac lok with 3.00 gears spinning 195/60/14s.

10.5s @ 70ish consistently in the 1/8 mile
Made everybody else look fast
 
  • Like
Reactions: 1 users
89 stock short block
AFR 165 Renegade heads
XE266HR cam
Trick Flow Street Burner intake
24# injectors
75mm TB
75MM MAF
1.7 roller rockers
BBK shorty headers
BBK off-road X-pipe with Flowmaster 40 series
3.73 gears
Lowered with stiff suspension
Stock rebuilt T-5

312 whp 342 tq

I haven't had it on a track yet, but would like to see mid 12s at least.
 

Attachments

  • 20221013_132730.jpg
    20221013_132730.jpg
    502 KB · Views: 12
  • Like
Reactions: 1 user
Last year I posted a dyno and times with a stock motor and Holley terminator x. This year she got a bit of an overhaul, BUT the dyno was at 5280 feet of elevation vs the previous year at 800 feet of elevation.

Either way, pleasantly surprised with her.
All the same modifications as previously posted with:
Edelbrock intake manifold
TF 170 53cc 11r heads
AFM N41 cam
1.6 TF RR
That's cool, our numbers are practically identical.