Ran 9.5 Psi tonight and at 28* total timing it pops real bad and at 30* total timing it doesn't pop but it does rattle(ping) a little. So I'm thinking that I need to get a colder plug, I am currently running autolite 666. Running a colder plug would help with being able to run with the 30*. But I might also need to close the gap down a bit (currently running .060+ gap) to be able to lower the timing down to 28* total. Does it sound like I am on the right track on both accounts? by the way 10 psi pulls way harder than 6 psi it pulls like a mother efer. I love boost! On another note, friend of mine at the cruz in tonight in a 40's ford with a stoker 302 say's he is going to put the skymaro to shame friday 13th at the friday night drags. Says his car gets to 100 mph in 1 block. Says, he doesn't care if my car is turbo charged:Brow: he has two 4 barrels. I will be running slicks. He said he is going to run street tires but it will be OK because he has a posiou:. I thought maybe I would put the smack down on him with the ugly NA bracket car before embarrassing him with the skymaro:spank:. He say's he is only going to run twice then take it home. What I normally do when a member of the cruzer crowd says they are coming to the track show me what their brand X will do to my poor buicks is I let them run a slower car first and then pull up into the lanes that have no one next to me and let them decide if they still want to prove their point. For some reason they never seem to be able to line up against me. What do you think be nice or let him have it? I know that I don't have the fastest cars on the planet but the cruzer crowd typically has no clue as to what is fast and what isn't. Mark Call me.
Plugs were gapped closer to .070 - .080 I re gapped them to .045 and took the timing back down to 28* total. Ran it through first and just a tough in second. It hit 9.6 psi under the throttle blades. no pinging and no popping. It is hitting full boost very fast. I don't think I will push it any further than 9.6 psi right know. It sure feels a whole lot faster than my 7.70 passes at 95 mph I think it will hit the 100 mph mark and most likely be faster than my 7.39 limit with no roll bars. 7 days until muskrat hunting.
I see you already regapped the plugs. What little I know about boost is you do not run those big gaps. Never saw much reason to run big gaps anyway. I can't run the timing you are. I think I am running more compression than you. You have given me some courage so going to put the smaller pulley on today. Should be 7 to 8 psi and come in really fast.
James, I see your problem. An Autolite 666!!!! Nightmaro is back! The only hope now is to change plugs and wash the car in holey water. You will need a priest to do an exorcism again ( I assumed you had one done from the last set of problems. Then again the sign of the beast may be appropriate for your car. :laugh:
Guy with a 347 Ford small block thinks he can take a 455 Buick! :idea2: I think we used to call them "stokes" back in the day. They raced with their mouth and did not have the chops to back it up. First off the 302 ford is a torqueless wonder. Second he is over carbed. Very few cars can use a 2X 4 barrel setup. The only way this setup is fast is to run a cam that cannot be driven on the street and spin it into the stratosphere. I always tell them they have to run my 6 cylinder (GN :grin: ) before they get to race the big boy car.
Doug you are hilarious. I have considered renaming the car to Nightmaro. I have 8.5:1 compression what is yours? I am not worried about running the ford I am more thinking that I should let him race slow cars before, as you put it "race the big boy car"
We think I am about 9.5:1 so a little high. So I pull more timing. Holes in pistons are bad. I would bet that the ford is a 14 second car. He has no idea what an 11 second car would do to him.
Back on 7/17/2010 I asked if I should pull the wast gate signal from the intake manifold. And me being the type that tries everything if it makes since and hole it doesn't break. I have been running it from intake the very next day. I thought I would give you guys an update if that works or not. I will answerer it this way. if you want your boost to hit all at once then you should pull your signal from the intake manifold. If you want your boost to hit half of your goal boost and then slowly climb to the goal then pull your signal from above the carb (bonnet, charge pipe, compressor housing). I chose the one that kicks me in the teeth when I tell it to go. If you have a week neck then you may not want to pull your signal from the intake manifold. Now I will say that there is a spike in pressure above the throttle blades at the half way point but it never over boosted under the blades. I will try and post video of the gages as it builds boost it will show the above carb and below carb boost gages.
I got rid of the Autolite 666 plug and ran an NGK UR6 which is the coldest plug I could get in an NGK Stock is UR4. Anyway I ran 10.5 psi with 32* total and no pinging. It really likes the new plugs. Its all ready for friday night street legal drags this friday.
I ran the skymaro this friday and it ran a best of 7.66 @ 94 mph. My 60' has gone down to a 1.8 from a 2.20 that is good. But I could not take full advantage of the switch pitch because the back tires would start to spin at the starting line. I am having serious traction problems. But not where you would expect. I could get it to launch fairly well and it would build boost very fast but at just before the 330 mark(half track) the car starts zig'n and zag'n. My first pass was a 8.10 @ 59 mph @ 12 PSI the low speed was because I had to hit the brakes and change my under ware. I almost lost the car on that pass. So I turned the boost down to 9 PSI and once again the car would loose it about half way through second gear and never really recover but it would run 7.80's lifting early do to the slippery track not being able to hold. I finally decided that I was going to keep it to the floor board all the way to the finish line and hope I could hold onto it. That is when I rand the 7.66 @ 94 MPH. Then I decided to take a bunch of boost out to see if it would hold. So I ran it with 6 PSI and it rand 7.80 and only slipped on the 1/2 shift and the 3/4 shift. You are probably thinking what an idiot thats what you get for trying to run on street tires. That is the amazing part, I was running slicks and when the 9.5x26 slicks didn't hold I went to a set of 10x29 slicks and they didn't hold either. I even tried all are pressure ranges from 12 psi all the way down to 10 psi. I guess I will need to goto a 15" slick. After giving up on trying to get a clean pass on the skymaro I put the street tires back on so my wife could drive it the 45 miles back home. After doing so I ran my 8.30 bracket car, man did it feel like a slug. It was like how it feels when you get used to driving a V8 and then get into a 4 cyl. Although I was disappointed that I could not get a clean pass I am very happy with how the car is performing. I am fairly confident that had I could run the original 12 pounds of boost that the car would have ran in the 6's @ over 100 mph and I would have been done for the evening do to the fact the car has no roll bar.
Very cool stuff. Difficulties with trying to make a car go down the track due to traction is an amazing problem to have!! As for the tires, how long was your burn out? And what kind of chassis stiffening stuff do you have in the car? I remember you saying it needed a cage once you got to a certain ET, but i dont recall if that ever happened.
Very cool, 7.60's are definatly respectable. Especially from an old buick engine in a camaro :laugh: . How much does that thing weigh?:grin: You probably need to do some suspension work on the car to make it hook better and keep from losing traction down the track. What all have you done suspension wise? Anything done with the pinion angle? I was doin 6.60's spraying 100 at the line, and didnt have any issues with traction with a 29x10.5 tire. Took a bunch of fine tuning on the suspension, but it was definately worth it. IMO
I tried different length of burnouts and it didn't seem to make a difference. Stock air shock suspension. Not cage no roll bar. And the car weighs 4000 with me in it it's 4200.
I'd go ahead and put a funny car style cage in now, you're going to be required to have it at the rate you're going! I'd do as Tyler suggested, do some suspenssion work. I'd tie the "frame' together, add at least a simple 6 or 8 point cage for stiffness and safety. I've seen cars go faster with just simple chassis work and not more power added. I'd make sure the rear end does not bind in it's travel and maybe get a good set of adjustable shocks for at least the front end so you control extension and compression rates for a start. There's no need to build more power if you cannot get it on the ground. One little 'trick" you might try, not sure if the Skymaro's front bushing are made like a Buick, but if you take them apart and grind the serations that inhibit the travel off the ends, it'll make the front end be able to travel easier. With an adjustable set of front shocks you'd be able to get the front end to lift and transfer weight faster to the rear, then be able to keep it there with the adjustable compression rates. That's just my .02 worth, good luck, I just wish we all had your "problem."
No frame connectors. Stock ou: It does have slapper bars, but that just helps with wheel hop right? I think frame connectors will be my next move. I will also try some shocks 90/10 right? You guys don't think going to a bigger slick will help?
90/10's will get it up, but they come back down real slow. At the rate your useable HP keeps going up, I'd spend the money and get something really adjustable for later on. I think it might be a good idea to check out a cage along with the frame connectors. I think you'll be suprised how much a car really twist when you get into the low 7's. Look at some of the Buick GN's, they start cracking the roof.
My DRs are 28x12s.. I haven't been to the track yet, but traction will not be an issue. I think a bigger slick will help. I hope to run a mid to high 7s with no real excitement.. It ran a 9 flat with no boost.
check these for chassis stiffening http://www.pro-touringf-body.com/chassis_components.html for a nice rear bar the 1.25 hr partns n stuff anto roll bar is awsome another great bar would be http://www.scandc.com/hellwigswaybars.htm
