newschool72

iTrader: (12)

Yep, that's been my understanding too. The shocks Im running, along with the leaf springs, don't allow good lift and separation to plant the tires. Im sure it will be better than the last trip, but the cars setup is far from ideal for the 1320.
Im expecting between 11.1s and 11.2s at around 120 with a fair 1.6s 60ft. I am hoping for something around Dougs estimate, but it will be something really special if it does.

newschool72

iTrader: (12)

Tigger, I did a little more research on the Power Bond 25% UDP and it is suppose to weigh exactly the same ( on purpose) as the factory pulley. Now all I need to do is sell my stock lower pulley and new vette belt to go with it and I can pick up 1 of the 3 used units Ive found. Suppose to be worth a 10th. Me likey!!

Doug G

Soooo, NewSchool......you're an archery pro too ?
I'm a Bow Hunter and gave up gun hunting years ago.
I guess you were/are a spot shooter ?

I wish you luck on the ET and the back surgery

newschool72

iTrader: (12)

Nope, 3D archer. I don't shoot anymore, but I use to run all over the country shooting ASA and IBO stuff. I am/was a bowhunter too "only". I liked to match wits with mature bucks and enjoy just watching them from a high perch , LOL. I ran an archery pro shop for 14 yrs, building strings, the whole 9 yards.
Ive won national, regional, and state level tournaments and use to eat, sleep, and live for the next shoot. It was fun, but as my neck and back got worse, it was harder for me to be competitive ,so I quit the comp stuff. In the last 2-3 years, my back has progressed to the point, Im afraid to climb a tree, so I haven't hunted in 3 yrs. Maybe when the back surgery is over, I will be able to get back in it, to some degree. Ive even considered picking a rifle back up. Ive bow hunted exclusively since 1992, so I don't know if it would even feel right taking a fire stick in the woods. Time will tell.

Doug G

Just got my first custom set of strings....I like
I really love Bow hunting and the people you run into on the woods are a lot different than the gun hunters.
Maybe even look into a cross bow and a make-shift ground blind ? I know it's not the same, but close

VLS1

11.4 @ 119mph, would be very surprised if the converter is worth more than a tenth off the line, 2800 is still a pretty low stall speed if the tyre can hook.

speedtigger

iTrader: (16)

Okay, so here are my thoughts/prediction:

I don't know what the weather (D/A) was on your last trip, but it it almost guaranteed to be outstanding this time of year. So, you should pick up there depending on how the weather compares to last trip.

Dropping 100 pounds is money for sure. That is worth a tenth and 1 MPH.

Underdrive pulley.... Meh, maybe a few hudredths.

Drag springs and cheap drag shock will help get and keep the nose up will help the 60'. However lack of active rear suspension and drag specific rear shocks will not hit the tires on the launch. Some Caltracs would be a real plus.

Those tires, especially at 26" tall suck compared to good drag radials.

I was able to cut as fast as a 1.62 60' with my Circle D 2800 converter. At your weight, your engine/converter combo should be capable of at least that.

I don't think you car will hook. I think you are still going to have to ease into it and maybe even peddle it a bit. I will be surprised if you 60' faster than 1.74.

So, with your old time being "11.65 at 118 with a 1.876", and subtract:
.1 ET and add 1 MPH for the weight
.1-.2 ET and add 1-2 MPH for weather (D/A)
.1 -.15 for your suspension changes and more seat time in launching

I predict: 11.20s-11.30s @ 120-121 MPH with around a 1.74 60' if you can baby it out.

newschool72

iTrader: (12)

If the cam/intake combo makes near peak TQ at 2800, it could be worth more than a 10th in 60ft. Add to that actually hooking and the ET could be much lower. We will see pretty soon, I hope. I didn't expect the 11.65 pass to even be in the 11s. It was a throw away run at best, with the way the tires went away. The car is considerably quicker than my best pass so far. Its all going to key off that initial launch. If it hooks, low 11s are in the bag. If it spins, I will probably come home with another mid 11 pass.

newschool72

iTrader: (12)

I think you are pretty close, except a couple points. The Nitto NTO5Rs are actually a fairly good drag radial, IF I get some heat in them. I have a adjustable prop valve now, so I can dial those big back brakes down, to actually hold the car in the box a little longer. The valve has the **** on the dash so I can change it from the driver seat. Big part of my traction puzzle, LOL!
I also think a tenth is pretty sure with the UDP. My reasoning is, I have AC and PS, on top of the water pump and alt. Under driving all that crap hanging on the front of the engine will net more of an increase that the typical WP and Alt that adorns the front of a drag car. I think its going to wake my setup, uhhhh, up.
Im thinking 11 teens with the UDP. 11.20s without and a 60 in the high 1.6 range with the aid of the suspension and the all important heat in the tires.

speedtigger

iTrader: (16)

All the tweaks, expectation and predictions makes it a whole lot more fun doesn't it?

Doug G

I'm hoping it 60's great.
.2 off the 60' should be .3-.4 in the 1320
UD pulley .05-.1
-100# so say .1
---------------------
there's an O

Gotta work that 60'

newschool72

iTrader: (12)

It sure does! That is till reality comes crashing down on race day, LOL.

newschool72

iTrader: (12)

Yes sir, the 60s will tell all. From 30 ft out, its a 10 sec car all day long. Its the covering that first 30 ft that gets ya, LOL. At least with my junk, being more of a all purpose street car than a drag car. Its easy to make a second gen Camaro hook. Its just that, most of that stuff it takes to do it, pushes the car away from what I built it for in the first place.
If that sucker goes 10s, I will be writing every magazine I subscribe to, to say "check this crap out!" LOL. 10s with a baby cam and a dual plane on a stock production crate engine, with a cheesy "self learning TB", 2004R trans and 3.42 gears!! Just saying that will get you the " that dude is an idiot" label. That statement is what makes me think its impossible for the car to go that quick.

Doug G

I guess we'll all see....still got my fingers crossed for you

speedtigger

iTrader: (16)

How much air do you run in those tires? I don't know much about tire pressure in those. Most M/T drag radial guys run around #18-#20

newschool72

iTrader: (12)

And I appreciate it. So, any thought on your ET now that the part throttle brain fart is fixed ?LOL. You know, 11.30s is pretty dang quick in the PTDRC.

newschool72

iTrader: (12)

This is my first dance with a 17" DR. I ran 26 lbs every time I ran them so far. I came up with that pressure by just laying on the ground, looking at the tire from the back, while I let air out. 26 lbs was where the whole contact patch was on the ground. Anymore and the tire rides the center, any less and the middle cups up. I don't know if that is a valid way to guess at it, but its a starting point. I have 325-50-15 MT DRs on the back of the 68 and they seem to work best around 18-20 lbs on a 8.5" rim. I wish I hadn't gone with the 13" disc brakes on the rear of the 72 . With a 10-11" rotor I could swap a sidewall on the car for strip duty and back to the 17s for twisty fun. Oh well, I didn't plan to go for low ETs when I built the car. It just runs so good I want to see what its capable of. And the rock starts rolling down hill, LOL.

speedtigger

iTrader: (16)

Oh how know how it rolls. LOL

Doug G

hope 10.8-9 ? until I can dial in the carb better.

newschool72

iTrader: (12)

Should do that easily, I would think.