EvilCartman

iTrader: (1)

I'm so dang happy right now First pass of the night I set a new best on the motor. Back in 05 I ran a 12.22 @ 110 and tonight right off the trailer I ran a 12.17 @ 112. That was with stock jetting in the used 750 Mighty Demon I picked up off of ebay. Upped the jets a couple sizes and a couple runs later, I hit 11.93 @ 113.97 It had a bit of a bog or something a few feet out of the hole so I decided to change the pump cam back to the stock pink one. That resulted in the front maxing out on the suspension and the car lurching to the right. The final run of the night I took out a couple lbs of air in the tires and ran an 11.97 @ 113.67 with a nice straight launch but that bog was back.

The last run is the only one I got on video so here it is 3.2 MB wmv

Blackroc86

Congrats on your new best.

MikeH

iTrader: (10)

Awesome....

pairtoe

iTrader: (4)

thats pretty sweet, is that just a regular cowl hood?

BlueBeast

Congrats on the new best, I love running in the spring and fall such great weather.

jbenge

iTrader: (2)

Good job, sounds like theres still a little left in it too once you get that carb fine tuned.

mw66nova

iTrader: (13)

man, that's totally awesome! it's been a long time coming too, i'm so glad to see you're gettin' it down there were it's supposed to be. i suppose the lca relocation brackets and prostars all the way around really helped!

xpndbl3

iTrader: (5)

congrats!!!

Demon355

iTrader: (1)

Very nice!

urbanhunter44

iTrader: (3)

Sounds good

BADDEST305

awesome dude. very nice

EvilCartman

iTrader: (1)

Thanks all Yeah, it's about time things started going right. Last year I was running anywhere from 12.60's to 12.30's and it was really frustrating.


It's a bolt on Harwood 3 in cowl.

brutalform

Congrats!!!

Trevor86TA

Nice work!

lilbowilson

iTrader: (2)

That cam of yours is a hyd flat tappet right? Dang thats killer! I can't wait to get mine to the track.

WheelsUp84z

iTrader: (2)

i believe its a solid cam..judging by the "S" suffix of the cam PN in his sig

xpndbl3

iTrader: (5)

this has me a little confused though:

nitrous pass 11.41 @ 113 mph, 9/9/06
Motor pass 11.93 @ 113.97 mph, 1.67 60' 3/31/07

5678TA

congrats on the new best.. this summer, i'll be looking for 11's myself..

since its an old mighty, it must be downleg boosters, right?? what kind of jets did it come with?? and what are you running now??

that would be a solid cam.. i ran that in my first motor.. 248/248 @.050" and .525"/.525" lift 110LSA..

EvilCartman

iTrader: (1)

Solid lifter cam


well you see, all of last year the car hasn't been running right at all. Best mph has only been 109 and anywhere from 12.60 to 12.30. All my nitrous runs have been absolute crap. During that run the car would die off midway through each gear and it was hardly doing anything at the top end hence the low mph. It did do 120 mph with an 11.60 something spinning through first a month or so before that.


Yeah it's the older Mighty with downleg boosters. The jets were 75/83 stock and right now are 77/83 6.5 PV, pink pump cams, 31 tube style squriters. Ran out of time to step the secondary side up 2 jet sizes to see what would happen. The new plug I put in for a run looked brand new afterwards.

greezemonkey

iTrader: (14)

Good Numbers ! I wonder how far that 350 6 inch rod motor will go now? how much compression is in it? I would try upping the squirter size for the bog..35 or 37 should take care of it, If it`s mechanical they also have a nice 1:1 linkage bar that can offer a whole new way to tune that carb.

5678TA

i was looking into one of those for my demon but that would KILL your gas mileage.. and i didnt even get the tune down on my carb yet.. i wonder how it would be like on the street.. neck snapping at the blip of the throttle..

67z28

Good job on your times!

EvilCartman

iTrader: (1)

I'm going to keep pluggin at it to see what I can get out of it It's running 10.5:1 compression. The only time the engine didn't bog down was when I first switched to the pink pump cam and only stalled the engine to 3,000 rpm. The car lurched sideways and maxed out the front suspension. The next run I lowered the tire pressure from 14 to 12 and tried leaving at a bit above 3000 rpm. Only thing I can think of is the throttle was open too much for a good pump shot.

IROC4LIFE

Just curious, but have u tried a 50cc accel pump diaphram? It sounds like when u stall it up more than X amount of throttle your not leaving enuf fuel in the pump when u jam the gas to launch.

Just a Thought.

IROC

EvilCartman

iTrader: (1)

Nope haven't tried it yet. Another thing to do is leave some slack in the pump arm but that'll suck for driving around the pits.

IROC4LIFE

Yea it does, it also sucks if u have to pedal the car hard, not to mention getting the thing on the trailer.

The pink cam is a good one to use for foot/trans breaking and still decent on the street. all I would do is change out the diaphram to 50cc and re-ajust the arm to spec, you might have to mess with the shooter size a little since it will be a longer discharge, but it should clear up any holes in the fuel when footbraking and not affect regular driving/throttle response at all.

IROC

P.S Also if it starts to bog, drop the PV down a little, 4.5 works pretty good. Imho.

11SEC91Z

iTrader: (4)

Congrats man! Arent you running in some high altitude, like 5-6000 ft ?Thats Get-n-er done there..

Orr89RocZ

iTrader: (20)

woot! good times man... hope u get all the small things worked out and start running even better times with that combo!

EvilCartman

iTrader: (1)

Track elevation is 490 feet, that'd be cool if I could run these numbers that high

IROC4LIFE, thanks I'll give it a try for next time I go to the track.

11SEC91Z

iTrader: (4)

Ahh sorry..Still rollin tho.Congrats.

unknown_host

iTrader: (1)

Nice job man!

EvilCartman

iTrader: (1)

Thanks unknown Got yours together yet?