Post your combos and E.T.s

cadillac512

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The first engine I had in the "T" was a low compression (8.6:1) 120cc head build with less cam than your MT20,Flat top KB's,2.11/1.77 valves and decent porting job,good rockers,2115 Edel and 850 Holley. I ran a best of 10.66 at 123 with that one,and it's still just fine sitting in the corner waiting to be put in something else.
The "T" weighs 2500# with driver so if your car is close to that it should perform at least that well...probably better. The next engine is the one you posted about,and it has stock Caddy rods that I put ARP bolts in and resized the big ends to top of spec. I believe that the bolts are the reason the rods stay together. I lube them properly and install them with a stretch gauge....stretched them .0065" if I remember correctly. Big rpm will kill rods quicker than big power though,and when that big heavy piston goes over TDC it pulls HARD on the bolts. I spun that engine to 6000 rpm every pass and it had gone over 700 passes when I pulled it out and put it in the corner beside the low compression one. It too is just waiting patiently,lol.
My current engine is a 514" 12.6:1 deal with forged pistons and the same Olds 6.735" rods you have. I decked the block to make up for the .015" shorter. Heads are seriously ported and intake ports are raised .400" with the floors filled .300" as well.Running a 268 at .050 /.600" lift solid cam on a 108 lsa in this one,and a MTS single plane with a 1050 Dominator. It has gone 9.50 at 138 so far. I spin it 6500 regularly.

Terry
 

74 Novallac

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Bonneville 500 said:
Mine was  :backinmyday: a '83 Bonneville with a stock '74 500 and Cad th400. I did have a Edelbrock intake and a recurve kit in the distributor and dual exhaust. The rear gears are 2.29s. I only made one pass down Epping dragstrip last year and I spun the tires awfully right off the line but I still ran a 14.8 et. I have no doubt it could have run low 14s or maybe even better with a little practice.  :thumbup:

A 14.8@92 mph to be exact.
 

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DrChop

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First Caddy motor I owned, I built a T bucket around it... Bone stock '76 500 engine/TH-400 trans. 14" long driveshaft hooked to a narrowed Dana 60 full-floater rear from a '70's Dodge pickup. Homemade 2"x3" box tube frame with 18" rear kickup and 4-link made with pickup truck tie rods. Chevette IFS and steering column, original steel '23 T body (for $40!) With homemade pickup box and grille shell from the Chevette hood sheetmetal. 10 gal marine fuel tank. Narrowed Rabbit rear seat, Lexan windshield. I later built a sheetmetal 2x4 tunnelram intake but never got pics of it. The T is in my Gallery here... Next was the 500 Eldorado trike- the "Lawnchair of Death". Stock FWD 500 with factory EFI and TH-425 transaxle, cantilever coilovers up front. Shortened chassis with modified single side rear axle, with quarter elliptic spring. Seats and column atop the stock fuel tank. Mounted mid-chassis. Pic in Gallery- I want to build another with full tube chassis someday...... Next was the original '28 Ford chassis- a mid motored beast using another Eldorado front clip. Steel 1928 Model A sedan (the same body that housed the T bucket body when my buddy brought them to Indiana from North Dakota). I built gullwing doors with hydraulic struts, and later got a Model A pickup rear cab section so I could convert from midengine sedan to midengine pickup in about 10 minutes. Cantilever Chevy pickup IfS up front, A grille and hood/fueltank, no sides. The first drive proved to be a wheely-ing monster even with street tires, and my J-10 pickup cab was falling apart, so I pulled the body off and put it on the J-10. I have pics of this on Photo CD..... The A-10 was originally a 258 inline with Granny low T-18 and Model 20 transfer case. After 4 years I swapped in a 500 and TH-400. I drove this one for 6 years total including rod runs to Indy Goodguys and Berrien Springs (made the Goodguys Gazette) and 2 Kalamazoo NSRA Nationals events. Also 2 years wheeling at Badlands ORV Park in Attica IN, and made Readers Rides Oct '98 4Wheel and Offroad mag. It was discussed on Pirate 4x4 BBs, International Full Size Jeep Association BBS, Club Hotrod, Jalopy Journal's Hokey Ass Message Board (HAMB), Hotrodders.com board, the RoddingRoundTable, along with my original Geocities website, later moved to Angelfire and copied (all 9 pages worth) by Jon the Hotrodders.com Admin for their second Project Of The Week.... Which leads us to the Kustomsledd..... Originally given free to me back in 98 it started out as a 223 inline 6 with three on the tree plus overdrive bone stock and VERY rusty 1954 Ford Customline, robins-egg blue with white roof. The 223 came out and the first Big Caddy (a 500) went in, on a sloping gravel driveway with the motor slung from scaffolding with a cable fence-stretcher! Customline+leadsled =Kustomsledd in case anyone wonders how the name came about... Its had about 5 Big Caddy motors over the 14 years I've been building it, and like any hotrod, its never done... Current specs are a warmed over junkyard '76 Eldorado 500, early bathtub pistons, ported and polished 902 heads, unshrouded stock valves, steel timing set with MTS-10 cam, stock valvetrain under late covers with early script grafted in. Early non-EGR iron intake, 1/2" spacer, stock '76 Q-jet with custom Fifties-style Caddy hand-fabricated aircleaner.
Fabricated 26 gallon baffled fuel tank, SunPro sender/gauge. Griffin aluminum radiator, A/C compressor converted to automatic air ride duty. Custom 2" primary x 3.5" collector fabricated DEI-wrapped fenderwell headers, stainless 3" x 6" flexes, 3" mandrel bent dual exhaust with custom modified Flowmasters and thru-taillight exits with flamethrowers- VHT coated with rigid rubber mounts. Stock HEI with lighter. Springs and modified weights. Stock 13" converter, full strip shift kit TH-400 with aircooled deepsump pan, heavywall precision balanced driveshaft bu Lance's Drivelines, '66 Mustang 3.00-1 geared 8" rear axle with fabricated rear discs using chevy 4x4 calipers/brackets and redrilled Eldorado discs. Up front its stock 54 IFS with modified '79 Camaro spindles and discs, Hydraboosted with Eldorado M/C and combo valve, Taurus adjustable pedals. LTD power box, coupler, stock '54 column with motorized tilt stering mount (built from a Cadillac power seat base). Saturn sedan seats w. Modified bases, Honda Shadow fueltank custom center console, Honda power windows (4), rearview 3.5" color camera/monitor. Fabricated air ride suspension with Firestone 2600# air springs up front and Grand Marquis (modified) rear air springs, 6 manual valves, dual 7 gallon air reserve tanks under car. More body mods than space allows listing here. No idea on performance specs yet (Desktop Dyno anyone????) but current ET is 14 years of fun and still running, with a MPH of over 100 several times on public highways....
 

Brian Cottrill

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The last cadillac powered toy was my old rusty 1986 1/2 ton 4x4 chevy truck. I did it to show my 19 year old boys freinds (with the ricers) I could out run them with junk I had laying around the house. It was a stock 80,000 mile bottom end 472 950 heads I ported with 2.19 1.88 valves a performer intake 850 holley lunati hyd cam and a 150 shot nos. The truck was completely stock 5000 pounds with me in it open 3.42 gears 700r4 2400 converter traction bars (both ends). It broke the crank gear @ 1000 foot on its best pass of 12.04 the best 1/8th was 7.51 best 60 foot was 1.58. I drove it an hour each way to test and tune and it still got 10 mpg about the same as the stock 305 did LOL... We had a ball with it and the track guys did too.

http://youtu.be/HmQpJMzILUE
 

Cadillac Kid 1

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Well,
Things stayed together long enough to get to the strip and make a few passes.
73 Coupe deViile-5200 pounds (from the scale)
.050 over with 7.1 inch rods and 10:1 probes
MTS Ignition
CadCo 300 T Cam ((108 LSA), 235 @.050, .583 at valve with Roller Rockers)
MTS- CNC Iron Heads
Edlebroxck 2115 with 800 CFM Quadrajet
Moser 9" w/ 3.25 trut-rac gears and MT Street legal slicks
Didn't seem to matter whether I shifted at 5200 or 5600.
Ran 13.6 at 100.7 MPH consistently with open exhaust.
2.08 60'
Now I can fool with something else.
Yea sure
Greg
 

Cadillac Kid 1

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DSave,
My "baseline" with a 150(+) K mile 472 in that same car with everything stock was 16.2 at just about 88 MPH.
Re the you tube: Let me figure out how to download my cell phone to my desktop and then, how do I get that on you tube?
Greg
 

USSCADY

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What vehicle(s) do you drive?
1975 Coupe DeVille
My first time at the track it ran 15.8 at 90, but the valve body had issues and had to completely back out of it to make 2nd gear. Now it has a new S-P, probably solved.

Dave
 

Cadillac Kid 1

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Okay,
After installing a 1 inch spacer under the carb (QJ) and modifying the Air Valve linkage so I get full opening (Jet Performance sent it to me with only 60 degrees of opening vs. the full 85 and "silly me" I did not check and assumed they were on the ball), one abortive trip to the strip last week with a brake wheel cylinder blowing just as I pulled up to the entrance (better then then 2 stops later, huh?, and another 5 gallons of MS-109 we did it tonight.
Got the ET to 13.51 with a trap speed of 101.03. The dreaded 60 foot remains a dull 2.05. Well it's progress in the right direction.
Greg

From the previous post "73 Coupe deViile-5200 pounds (from the scale)
.050 over with 7.1 inch rods and 10:1 probes
MTS Ignition
CadCo 300 T Cam ((108 LSA), 235 @.050, .583 at valve with Roller Rockers)
MTS- CNC Iron Heads
Edlebroxck 2115 with 800 CFM Quadrajet
Moser 9" w/ 3.25 trut-rac gears and MT Street legal slicks"
 

Brian Cottrill

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zeek540 said:
The last cadillac powered toy was my old rusty 1986 1/2 ton 4x4 chevy truck. I did it to show my 19 year old boys freinds (with the ricers) I could out run them with junk I had laying around the house. It was a stock 80,000 mile bottom end 472 950 heads I ported with 2.19 1.88 valves a performer intake 850 holley lunati hyd cam and a 150 shot nos. The truck was completely stock 5000 pounds with me in it open 3.42 gears 700r4 2400 converter traction bars (both ends). It broke the crank gear @ 1000 foot on its best pass of 12.04 the best 1/8th was 7.51 best 60 foot was 1.58. I drove it an hour each way to test and tune and it still got 10 mpg about the same as the stock 305 did LOL... We had a ball with it and the track guys did too.

http://youtu.be/HmQpJMzILUE
Update on my old 4x4 it ran 11.60@114 the other day.

http://youtu.be/DouGgLlNiDc
 

Brian Cottrill

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The 60 ft. was a slow 1.65 I got a cold fusion timer so I could start off soft and bring it in slow. It did run a 7.37 in the 1/8 tho :D I had 200 hp jets in it started at 10 percent with a ramp time of 6 seconds. I wanted to be in 3rd gear before it was at 100 percent (still taking it easy on my 700r4 input shaft). I broke the left rear axle the next pass the track was watering all the way across the water box so i was having some spinning/hopping issues. I could get more out of this thing but I am going to leave 11.60 as good enough. Ive got my 518 going in a 1983 LX mustang to play with in the spring.
 

Cadillac Kid 1

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I know it is not going to set the world on fire but I'm kind of happy with it. My 5200 pound '73 CDV, 511 inches, long rods, 10:1 probes, Cad Co 300 cam, MTS Adj RAs, MTS single plane with 1000 CFM Holley, Moser 9 inch with 3.73 gears running MT drag radials Went 13.20, 102.8 with a 1.9- 60 foot. Car went through the traps at just above 5200 RPM and was pulling strong. It just takes a bunch of HP to push the barn door at 100. the carb and the intake (from an Edlebrock and a QJ) picked up just about 0.3 seconds.
Dyno/Drag 200 said that I was right on for the 60 ft (it said 1.87), and maybe if I had shifted at 5700 like I "told "
the computer instead of the 5500 I did, it would have done the 13.0 and 105 that the computer did.
Next step, pull some weight.
Anyone have any suggestions for a FG front end?
Greg
P.S. I forgot to mention the CNC heads that got me from 14.2 to 13.5.
 

Andy V

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68 red convertible
8.63 @ 85.6mph was my outing this past Sunday at an 1/8 mile track here (Quarter Aces / South Mountain Drag o Way).
more to come as these were "test hits"
I think it's been 2 years since this car went down the track....sixty foots 2.10 with a 235/60/15 drag radial = stinks. We will get more tire under it and try again
 

The Mad Cadder

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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
http://s1284.photobucket.com/user/juliu ... 1.mp4.html


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
 

Cadillac Kid 1

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Okay,
I put the '73 Coupe de Ville on a diet and am down to 4950# with me and 1/3 tank of fuel. Best run: 60'-1.89, ET:13.109, Speed 102.74.
Greg Surfas
 

CanadianC10

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84 chev c10 lwb
Must be 4200 pounds


Cad 507

10.2:1
Home ported 902 roofs raised .125
2.15 int 1.75 ex
Howards solid flat tappet
.373 lobe 260@.50 on a 108 lsa installed at 104

Comp 930 dual spring
Edel 2115 roofs raised .090
Rebuilt 850 double pumper milled horn
MTS adj shaft rockers
Chromoly p rods
MTS 6.75 forged rotating assembly
6 quart ex motor killer pan

Th400

Transgo shift kit
Unknown stall b&m converter

Gm 10 bolt on leaves with 4.10s and mini spool, 28x10.5x15 stiff wall slicks

Best et was at 1800 on the converter and still fuel problems, 1.93 60ft , 12.59et at 108mph

Band aid on the fuel problem and blew the tires off, could of been a low 12 to high 11 truck with some minor work , stock manifolds with 2 1/4 pipes.
 

samIam

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Went to the track for the first time ever. 84 couple Deville, 4155lbs

Low comp 75 motor
Stock bottom end
Stock heads with MTS adjustables
#15 cam kit
Edel intake
Sanderson headers
870 holley
TH400(seemed late and lazy)
3.73s
Drag radials

Best time was 14.659 @ 95mph. 60' was 2.08. Tranny shifted way too late. It was pretty darn fun though.
 

maxdudy

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Hello guys:
Avid new cady user.
Here is my FED 500 Cadillac powered.
Stock 500 bottom end 8to1 pistons with 76CC chamber heads
Port and bowl work by me
Comp Cams Thumper 295
Stage 1 Shaft rockers
2115 Edelbrock manifold looking for Better intake
th 400 manual shift dual feed by me
3.73 rear gears 12 bolt shortened Chevy mini spool
Predator 300-930 carb
2" headers about 34 inches long 34" collectors.

Bet time @ 2200 lbs with me in it.
1.34 60'
1/8 around 6.3 seconds
1/4 mile is 10.04 at 132.4 MPH.
Running 30 inch x 9 M/T slick. 3800 stall foot brake but Flash the converter.
Shift art 5000 traps at 4300 RPM.
Car pulls hard but runs out of Steam @ about 800 ft. Needs more intake flow. Carb works great at track.
have run Powerglide behide engine and it gains about 2 tenths, but blew it up.

Any parts anyone has Im interested. This is very low buck tow and looking for roller rockers and Bulldog intake or Fabed intake cheap.
Let me know. Times calculate to 420 rear WHEEL HP.
 

maxdudy

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Hello guys:
Avid new cady user.
Here is my FED 500 Cadillac powered.
Stock 500 bottom end 8to1 pistons with 76CC chamber heads
Port and bowl work by me
Comp Cams Thumper 295
Stage 1 Shaft rockers
2115 Edelbrock manifold looking for Better intake
th 400 manual shift dual feed by me
3.73 rear gears 12 bolt shortened Chevy mini spool
Predator 300-930 carb
2" headers about 34 inches long 34" collectors.

Bet time @ 2200 lbs with me in it.
1.34 60'
1/8 around 6.3 seconds
1/4 mile is 10.04 at 132.4 MPH.
Running 30 inch x 9 M/T slick. 3800 stall foot brake but Flash the converter.
Shift art 5000 traps at 4300 RPM.
Car pulls hard but runs out of Steam @ about 800 ft. Needs more intake flow. Carb works great at track.
have run Powerglide behide engine and it gains about 2 tenths, but blew it up.

Any parts anyone has Im interested. This is very low buck tow and looking for roller rockers and Bulldog intake or Fabed intake cheap.
Let me know. Times calculate to 420 rear WHEEL HP.
 

PROSTOCKTOM

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shiftless said:
Hi Guys,
Please post your Cadillac engine combos (engine displacement and modifications, approx horsepower, vehicle weight w/ driver, transmission type, all the details) along with your best E.T.s / MPH with that combo.  NO DISCUSSION PLEASE in this thread, its purpose is to give others a clear idea of what stuff it takes to go a certain E.T. and MPH.
I think Shiftless had it figured out right from the beginning, as it was originally intended to be for Cadillac Combinations & E.T.s related only.

Personally I know it's hard to not want to comment, question, or discuss this and I have been just as guilty, but please do that in a separate thread, so

we can keep this an informational thread as intended.

Thanks Tom
 

samIam

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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.
 
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