Strip run coming soon...Guesses? Vids inside !!
#21
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I have been doing a lot of reading on this since upgrading to double adjustable shocks. What I have read is that, in general, the rear shocks should be very firm on compression and fairly loose on extension. This stops the vehicle from squatting during weight transfer and allows the suspension to plant the tires on the hit. The experienced guys did emphasize that this was a starting point and that there is no one "perfect" setting. It varies by car and even by track conditions.
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.
#22
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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!!
#23
10 Second Club
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Soooo, NewSchool......you're an archery pro too ? ![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
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
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
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
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
#24
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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.
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.
#25
10 Second Club
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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
![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
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
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
#27
Old School Heavy
iTrader: (16)
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The track opened back up on the 1st and Im almost ready to go back. For those that don't remember ,my last trip netted an 11.65 at 118 with a 1.876 60 ft...............I have changed the front springs and shocks and dropped close to 100lbs of weight off the car. The engine makes great TQ at my 2800stall speed. I want an estimate of my 60 ft and ET in the 1/4 mile. Chances are good I will have a 25% UDP also( working some deals right now) .
So what are the thoughts on my 60s and ET? 3.42 gears, 2.74 first gear in the 2004R and a 26" nitto NTO5R tire.
So what are the thoughts on my 60s and ET? 3.42 gears, 2.74 first gear in the 2004R and a 26" nitto NTO5R tire.
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.
#28
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#29
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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.
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.
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.
#31
10 Second Club
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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
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there's an O![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Gotta work that 60'
.2 off the 60' should be .3-.4 in the 1320
UD pulley .05-.1
-100# so say .1
---------------------
there's an O
![Winky](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_wink.gif)
Gotta work that 60'
#33
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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.
#37
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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.
#39
10 Second Club