1150 dominator Questions

[Bob Alberty Jr.]

Thanks for the reply Tom,

The motor belongs to my sponsor, and it was bought 3rd person, It was all new, we did pull the pan looked at the bearings etc... but we only know what we were told about it. I will dissasemble it this winter to check, but what we have been told about it and the person is a reliable source, he has nice pieces.,before they freshened it he has using it for a nitrous streetcar shootout deal

477 big block chevrolet

10.2 compression,

Comp Cams http://www.compcams.com/Cam_Specs/Ca...?csid=551&sb=2.

Edelbrock heads http://www.edelbrock.com/automotive_...erf_rpm1.shtml

I didnt get the cam card till last week, had been setting the valves at .028, have since re-set them at the specs Comp calls for,.022 .024, made no differance in e.t.

Ignition is an MSD 6al,2 step,blaster coil,msd magnetic pick-up distributor at 36 degrees,(locked), running autolight 3935 gapped at .035

Staging it on a 4800 chip, shifts at 2.75 seconds into the run which is 6800, goes through the lights (1/4) at 7400, powerglide trans 1.76 low, 4.88 rear gear pulling 14x32's car weighs 3250 with me in it, runs 10.30's to 10.20's depending on the weather.

Personaly,I think the motor is lazy,it's consistant,but doesnt have the hit I think it should have say if you tried to do a chirp. Maybe Im just remebering my small block.

I will bring my guage pins home tommorrow from work and check the air bleeds.

[Rich Biebel]

That carb is too big for the motor specs you list and that is why it is lazy.....A 10-1 477 that runs 10.30 will go faster with a smaller carb. A 1050 would be about the maximum carb I would try to use on that engine/car combo.

[Tom Goldman]

I'd try an 850 on that motor. .Not enough compression,or rpm to justify anything larger. .........Probably would work if it was still on nitrous,but way to big without it...........Like Rich said ,It'll probably pick up a bunch of ET with a smaller carb..........Tom

[Floyd Staggs]

How about on a 10 3/4 to one 540 with .714, .714 cam etc? Is the 1150 to big? That's what I'm using.
4000 lb pickup, pump gas, 10.72 @ 122 best.

[Tom Goldman]

Floyd, I'd bet your short times ,probably up to the 660' would pick up considerably. ......I've seen guys use way to big a carb and have success,but I've also seen many who struggled with the problem Bob is having. .....Bottom line is you have to try different carbs to see which is best for your combo..........A while back,.I tried a 1050 on our S/ST AMC Spirit which has a very healthy 401 in it. 13 TO 1, big roller ,ect .....It picked up about 1 mph ,but lost over 2 tenths in ET! , compared to a good 850 carb. ......Tom

[Floyd Staggs]

Tom, the price was right on the 1150. A buddy of mine had it and wasn't using it, so there you be. I can borrow a 1050 and try it. Jet it the same 94 sq and see if there is any difference.
Thanks,

[Floyd Staggs]

Tom, OT, I just got one of them F.A.S.T. air fuel ratio recorders, their instructions leave a little to be desired. Do you know how to adjust the carburetor to get the desired numbers? What are the desired numbers?