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Post by 69Rebel on May 4, 2015 20:34:35 GMT -8
Betcha that motor runs sweet and gets surprisingly good fuel mileage, with plenty of power for cruising around.
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Post by kenparkman on Nov 18, 2015 19:52:53 GMT -8
Thought I would add the Rambler engine build to this thread. At this point have got some data and track time so I thinks it's worthwhile to mention. This thing is intended as a true street drive anywhere low maintenance pump gas combo and it is a bit of a science experiment to make the most NA power within those rules. So far I've driven it maybe 800 miles and am starting to get a little more confident in it.
The engine: 426, 10.14 compression, 6" rod. The pistons are 4032 instead of 2618 for a little better streetability. Pistons fully coated. Edelbrock heads, 2.055/1.600 valves. Quite a bit of work due the inches and 6500 rpm target. 287 cfm, 2.56 min csa Torker intake enlarged to match, 1000 cfm 4150 holley Crane HR232 cam, 232/240 on a 110 lsa, installed at 105 intake cl. .598"/.584" lift with the 1.7/1.6 HS shaft rockers. Beehive springs to try to get a little more usable rpm from the HR 1 3/4" hooker headers, the car has 2 1/2" exhaust to the bumper, H pipe, and relatively quiet Dynomax mufflers BHJ damper, Canton pan, IHJ scrapers, and a few other minor tricks.
On the engine Dyno it made 567 hp at 6050 rpm, 560 ft-lbs at 4700. This is on an older manual dyno, and the numbers are corrected to J607. The installation was no accessories with an electric pump drive, open headers but not the ones from the car cause they would not clear. These are my dyno headers, cheap 1 3/4 CJ fender well hedmans. The cooling tower has a 170 F thermostat, so the running temperature was approaching 190. This was where I learned about boiling in Edelbrock heads.
On the chassis dyno it made 472 rwhp. This is a dynojet using J1349, about 4% lower reading. It is not a 95 hp loss due to the different standard and installation losses. With a little bit of guess work due to the exhaust and accessory differences I figure about a 7% difference. engine to chassis. It pulls very well to 6500 and does not drop of much, something HR's are not good at.
At the track it went an 11.05 @ 125.7 mph in the approx 3250 lb Rambler. This is in street trim as I drive it to work with MT DR 235 tires, with a Mcleod diaphragm clutch, a Tremec TKO, and a 9"Ford with a 3.55 trutrac diff. Clearly an example of how not to set up a drag car with tremendous traction problems and a pathetic 1.68 second 60 foot.
On the street it drives decent, but I still have some carb issues to work out. It's a touch lean under WOT and light throttle cruise and won't respond to jetting. Have to learn more about tuning carbs. But with the lean cruise and the OD tranny it gets fantastic milage! On the pavement shiner tires it's almost dangerous; 1st and 2nd gear are useless, and in 3rd it will still spin if you roll into the throttle. I definitely do not drive it in the rain! BTW the vacuum wipers still work, but that are pretty slow at idle. I also get more valvetrain noise then I wanted, not sure why.
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Post by 69Rebel on Nov 19, 2015 9:02:22 GMT -8
Nice. Thanks for posting that, Ken.
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Post by javtwotone on Nov 20, 2015 7:46:56 GMT -8
I believe I am having similar traction problems with my '67 Rambler, no other explanation makes sense as I have optimized the 199, three on the tree for maximum performance. 4 second 60' times should not be happening.... some have said the green interior is too much of a distraction.
But seriously, your bad-ass car combo is my ultimate dream set-up for my little Rambler. I would love to see some pictures.
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Post by kenparkman on Nov 21, 2015 10:58:08 GMT -8
Thanks jav. Believe it or not I don't have any pictures! I'm not much of a picture person. It's a Beale Street Blue 69 2 door post Rambler, complete with dog dish hubcaps. Reasonably clean, but by no means a show car.
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Post by sc397 on Nov 21, 2015 12:51:31 GMT -8
Thanks jav. Believe it or not I don't have any pictures! I'm not much of a picture person. It's a Beale Street Blue 69 2 door post Rambler, complete with dog dish hubcaps. Reasonably clean, but by no means a show car. Ken.... we ALL know which car is yours.
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Post by sc397 on Apr 5, 2016 8:27:34 GMT -8
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Post by in68jav on Apr 6, 2016 4:46:44 GMT -8
Holy smokes that's a bunch!
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Post by Captain Awesome on Apr 6, 2016 14:01:46 GMT -8
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Post by spud on Apr 8, 2016 4:13:21 GMT -8
Ok it gets fantastic milage. im guessin thats better than the 17 I get with my 232/904/2.87 combo lol. time to find that v8 crossmember. Guess ill have to fix the s-10 first so I have transpo while the jav gets a 360.
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Post by sc397 on May 18, 2017 3:45:42 GMT -8
67. Weisco401: 9.5:1 compression ratio, CompCam 268H, Air Gap, 750 Holley, Shorty Headers, 2'of 2.5" pipe. I think the shorty headers hurt it. 321 HP, 425 #/ft Torque.
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Post by javtwotone on May 18, 2017 6:15:27 GMT -8
268H not much of a cam for a 401... Going in front of an automatic with a stock converter?
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Post by sc397 on May 18, 2017 6:45:57 GMT -8
Yep in a 1980 Cherokee over in England. I picked the 268 because that is what I had in my old Jeep truck. It had great throttle response and made gobbs of torque.
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Post by sc397 on Aug 2, 2017 11:52:21 GMT -8
73. CastPiston401crossram: 9.5:1 compression ratio, Cast pistons, 280H cam, (2) 600 NEJoeHollys. Interesting results. It runs great and sounds good but all show and not to impressive go. I did meet the goal of max power at 5000 rpm with a Cross Ram though. 2017-08-02 07_51_31-401 280H.pptx - PowerPoint by Rick Jones, on Flickr
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Post by sc397 on Apr 4, 2021 14:53:42 GMT -8
56. CD418Stroker: Full ported Indy Heads, 12.8:1, E85, 267/275 @.050, 108LSA, ,704" lift solid roller cam, Installed at 104 Intake. 1.6 Rocker Arms, Torker intake, 950 carb, Jim Landis Headers. IMG_4511 by Rick Jones, on Flickr It actually made 10 more HP with a "Vac Pump" on it. LOL! IMG_4509 by Rick Jones, on Flickr And the video.. IMG_1989.MOV by Rick Jones, on Flickr Of course now we wonder how it would do with a Indy or Vic Jr intake.. 7-17-21. Here is the last pull after these changes. Degreed the cam to 106 Intake New port matched Indy Intake Manifold Vacuum Pump 1.721 Rocker Arms on the Intake. IMG_1473 (1) by Rick Jones, on Flickr
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