Post your combos and E.T.s

PROSTOCKTOM

Well-Known Member
Joined
Aug 15, 2007
Messages
3,170
Reaction score
34
Points
48
Location
West Central, Indiana
samIam said:
Went to the 1/8th mile today, got 8.98 with 1.99 sixty foot at 79 mph. Wish there was a thread where we could ask questions about ETs and such. My pic got erased and I see people saying not to ask questions about ETs so I'm not sure what I can post anymore. Same combo as before but the full manual tranny and 3.90s. It was 88 degrees and 95% humidity. We just baked outside today.
This thread was setup almost 10 years ago for a certain reason.

If even minor discussion is allowed it quickly turns into a run away train and gets off topic really fast.

This topic is maintained the way it was originally intended as an informational resource only.

Please feel free to start any discussions or question/ answer post you wish in another thread.

Tom
 
Joined
Apr 1, 2011
Messages
308
Reaction score
1
Points
16
Location
Gypsum,KS
68 472 with 500 crank bored.020" with 7.1 rods and 10 to 1 Probe pistons. MTS 15 hydraulic roller cam with MTS nonadjustable rockers. Late big chamber heads with 2.11 intake and 1.77 swirl polished valves and a home done port and polish. Vertex mag and Enderle fuel injection with a 6-71 blower@10% overdrive. Blower manifold from MTS. SFI flexplate from MTS. 3600# 1937 Lasalle with a manual shift TH400 with a 2.97 low gear. 9" Ford rear end with a Gleason torsen at a 3.56 ratio. Tires are MT drag radials (not nearly enough tire).
Best 1/8 time 8.554 @ 86.04
Had to get out of it twice because it was smoking the tires and going sideways.
The AEM data logger recorded 12,236 rpm at the finish but I am thinking it was reading double. The manifold pressure was 29lbs which would be 15# of boost.
If I can get it hook up should be able to cut off a couple seconds.
 

bugzaper

Well-Known Member
Joined
Nov 23, 2005
Messages
1,621
Reaction score
77
Points
48
425
.030 over
0 decked
Flat top stock pistons & rods
Balanced assembly
LUNATI cam / lifters / HD timing chain (working on home made rocker system...)

Specs on cam:

LUNATI
part # 34601
SP1-214-218
Cadillac 472-500

Valve Lift: INT - .460 EXH - .479
Lobe Lift: INT - .271 EXH - .282
ADV DUR: INT 270 EXH 280
DUR@.050 INT 214 EXH 218
VLVE LSH ---- ----
CNTR LN INT 108 EXH 116
TIMING @ .050 TAPPET LIFT
BTDC -1
ABDC 35
BBDC 45
ATDC -7


Decked heads (clean up surface) / 3 angle valve job / home ported
Edelbrock aluminum intake port matched to heads
1 1/2 birch wood spacer with several coats of epoxy applied (home made)
Holley 750 cfm vacuum carb: 72 jets / 35 squirter / 6.5 power valve / white vacuum spring / tan-yellow cam
(been playing around with a 950 double pumper ...)
HEI re-curved dist. with a 7 prong pin (timing retard)
Stock 472 exhaust manifolds with slight porting, into duel 2.5 exhaust pipe into cheap-o turbo type mufflers

Turbo 400 / 2600 stall Allison brand convertor (high dollar...) / shift kit

Ford 9" with 2:73 & 3:50 gearing (likes the 3:50s) / 27" tall tires on Caddy 15x7 steel wheels

1990 C-10 / short bed / lowered / leaf springs / non-air / fuel cell under bed behind rear end

Have yet (10 years since build) to take it to the track but, have pulled a trailer hauling wood and it has all the power one could want!
 

The Mad Cadder

Well-Known Member
Joined
Sep 20, 2013
Messages
3,856
Reaction score
40
Points
48
Location
Detoilet Mi
I found out my video link no longer works cause it was a photocrap link and since we cant edit posts after a time
here it is .. This was my Cadmaro with the 514 8 to 1 BIG cam Black Widow intake motor on a 10.49 pass

A long time ago

71 Fleetwood 5280 lbs plus me 260 lbs stock well tuned 472 300,000 miles
Open exhaust manifolds

15.8 1/4 mile after the Quadrapig disappeared..cant remember mph
14.7 on nitrous burning rubber for a 1000'

77 Eldorado 425
9.1 to 1
Open exhaust manifolds

16.2. 1/4 mile

71Skylark
76 - 504 pocket ported 902 heads
12.0 to 1
232 @ .050 .528 lift
Geometry corrected Mouse trap rocker arms
turbo 400 stock Caddy converter
4.10
29.5 x 9.5 slicks

13.0 1/4 mile @ 103 mph

512 - same as above with 250@ .050 hyd cam .586 lift
1.75 Harland Sharpe shaft rockers
12.3 to 1
homefit monte headers [ made before adapter flanges were available ]

12.40 1/4 mile @ 110 mph

81 CDV
472 stock bore 9.3 to 1
ported 425 single plane intake
850 Holley dp
236@ .050 hyd cam .568 lift
1.72 shaft rockers
3.23 gear

Very traction limited 13.60


69 Z-28...2960 lbs 3200 with me

514 approx. 8.5 to 1
288 @ .050 .682 lift - .03 lash 102 in 116 ex
1.75 Harland and Sharpe shaft roller rockers
2 Holley 750 d.p
317 cfm @.600 lift heads 240 cfm exhaust. 2.19 in 1.88 ex
3.90 - 57 olds rear end with spool
Ladder Bar car
32.5 x 14.5w slicks
11" 2200 rpm converter
Homebuilt 1 3/4 tube 3" collector headers
10% underdriven 6-71
Boost gauge only showed vacuum

11.19 1/4 mile @119 mph


Changed to 10" Ultimate Street Fighter t.q 38-4200 stall [ more like 46-4800 with the big high comp motor ]

Discovered the belt was bending the pulley down and skipping over it ....Set blower snout pulley spacing 3" back
Still showed no boost

10.49. 1/4 mile @ 127 Going sideways

same 10% OVERDRIVEN
4 lbs boost

10.09 1/4 mile @ 131 mph

After finding out my blower was really a aluminum shaving injector

No BLOWER same motor and converter
Added Black Widow intake and 1150 Dominator
2880 lbs plus me
31.5x14 slicks

10.49 1/4 mile @ 128 mph


524. 14 to 1
274@ .05 .430 lobe lift solid roller. .752 lift -.028 lash with 1.75 rockers ..108 ls installed 3° retarded
330 cfm heads @.600 lift 2.25 in 1.9 ex same exhaust flow numbers

9.65 1/4 mile @ 136.96 mph

Never did get rid of the Wheel hop that caused mid track spinin :D

The Mad Banana
79 CDV
425
2115 intake
950 Ultra XP
MT10 cam installed straight up
Cadco headers
3.23 Caddy rear end with Eaton Posi
275x60x15 Coopers

Made several passes but had a sheetload of trouble with stupid things like trans not shifting
etc.. Still ran 14.7 @98 mph..
didn't shift until 5700 and went from 1st to 3rd gear
with obvious major traction issues and tossed the belts
from the 1/4 mile mph it should have easily ran mid 13's

Hopefull update with the Mad Banana Boogieman motor soon
 
Last edited:

Roy Heisenberg

The 472 Crank is stronger due to overlap
Joined
Dec 26, 2018
Messages
212
Reaction score
23
Points
18
Location
Folsom, California
What vehicle(s) do you drive?
472 Caddy in a ‘75 Jeep J-20 TH-400 Dana-60 100LL
225151A0-7F99-434D-BFD3-8C554B3DC739.jpeg Here is my bestest combo so far...

1975 Jeep J-20 with 472 Caddy bored .030
Sanderson Headers
2115 ported intake
Ported heads from 1968
Holley 850 Double-Pumper
Mystery Cam from Pops in Fargo, North Dakota
Full tank of 100 Low Lead Av-Gas from my friend at the local airport
Crappy Uni-RoyAL radials
Turbo Hydro 400 tranny with a shift-kit from B&M
Jegs sticker on the front bumper
Caddy Hood Ornament for good luck

Ran 15.82 in 2WDrive High on the Dana-20 Transfer Case 15.82 in the Quarter Mile
 

48Austin

Safty First! Then pull the trigger!
Joined
Oct 14, 2017
Messages
505
Reaction score
270
Points
63
Location
Over here
What vehicle(s) do you drive?
1964 Commercial, 1948 Austin, 58 Pan
What is "low lead" av-gas?
 

Roy Heisenberg

The 472 Crank is stronger due to overlap
Joined
Dec 26, 2018
Messages
212
Reaction score
23
Points
18
Location
Folsom, California
What vehicle(s) do you drive?
472 Caddy in a ‘75 Jeep J-20 TH-400 Dana-60 100LL
What is "low lead" av-gas?
100 octane low lead is what you put in your Cessna 185 or Vans RV-7... it says low lead, but it is full on race gas with high Tetra-ethyl Lead. Lasts for 3 years in the tank, and makes big HP.
 

48Austin

Safty First! Then pull the trigger!
Joined
Oct 14, 2017
Messages
505
Reaction score
270
Points
63
Location
Over here
What vehicle(s) do you drive?
1964 Commercial, 1948 Austin, 58 Pan
AV-gas has no lead and is NOT race gas. Lead is an after WWII additive to get rid of detenation in high compression automotive engines.
 

48Austin

Safty First! Then pull the trigger!
Joined
Oct 14, 2017
Messages
505
Reaction score
270
Points
63
Location
Over here
What vehicle(s) do you drive?
1964 Commercial, 1948 Austin, 58 Pan
Oh sorry Tom, Just got pissed.
 
Top