[Chief of the 60's]

There is a reason why drag racers say, "you wanna play, you gotta pay". If you don't consider what could break next, you're either walking home or winching your car back on the trailer. I'm not saying to build "overkill" into a car, but when racing on sticky tires, you need to think ahead.

[Formulajones]

Originally Posted by 67gtospud

A lot of great info here! I will answer a few questions:
- I do have a driveshaft safety loop installed.
- U joints have about 5k miles on them
- fuel system is a walbro 255 in-tank electric pump, 6-an feed line, regulator and 8-an return.

I'm doubting the wheels will fit my car anyways but figured if ask. Im sure my 60-ft times will be horrendous as i have no desire to launch the car hard and break anything. My goal is to drive it there and drive it home. My plan is an aftermarket 12bolt or 9" in the future, jist not in the budget now.

I really dont know what to expect out of the car but i would like to see mid 12s, even with an expected poor 60'.

Well the fuel system shouldn't give you any problems

Main thing is to just go out and enjoy the car and do what it's made for. There is no shame in going out on street tires, coming out easy, and running the car through the gears regardless what time it puts up. . It's all about having fun.

My son got the bug and loves racing his foxbody mustang now. While I'm not concerned about breaking anything as they were pretty stout little packages from the get go, it's also not going to set the world on fire either. However it does have 254,000 miles on it and never been apart. So I'm more concerned of the engine than anything else, lol. It's been a fantastic car, and even in bone stock trim on stock tires it's went 14.39 at 97 mph with me driving. My son is getting better at shifting and is only a couple tenths behind with the same mph.
But it was all about going out, and having fun. Now he wants some gears and sticky tires. LOL See what I started?

[nikrnic]

I don't think I'd want to leave real hard with drag slicks on my gto which is an all stock 4 spd car. I'd feel better with street/strip tires (cheater slicks) or try a little less air pressure like 20lbs.

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[pokey1]

I have been leaving at about 3500 rpm with slicks then slowly rolling into the throttle, quickly hitting 2nd then finally giving full throttle (which triggers the nitrous now) and quickly hitting 3rd all the way to the floor, into 4th all the way to the floor just shifting into 5th then shortly after that hitting the finish at the 1/4 mile. 60 foot 1.75 with 116 mph 11.95 quarter.
Thinking about trying starting in 2nd at 4000 then rolling into the full throttle from the start to see if that helps 60 ft times. I know it can do better with new suspension setup. We will see what it does and if that helps or hurts if I get a chance to run this summer.

[Chief of the 60's]

Originally Posted by nikrnic

I don't think I'd want to leave real hard with drag slicks on my gto which is an all stock 4 spd car. I'd feel better with street/strip tires (cheater slicks) or try a little less air pressure like 20lbs.

I ran recap cheaters on my '65 back in the 70's. They worked pretty good considering track prep technology for the days. Today, they might work even better.

And yes, RECAPS. Its what many of your cheater slicks were back then. I also had them mounted to a pair of Rally II's off of a friend's '69 Judge.

[Goatracer1]

My son was running my 3.55 limited slip rear end out of a 1965 GTO in his 1967 GTO 4spd with no problems at the drag strip. His car ran a mild rebuilt 400. He asked me if he could borrow my 28x10.5x15 MT slicks. First time he rev'd the engine and dumped the clutch the differential came apart. He removed the rear cover and all the pieces fell out. I learned 2 things that day. 1) don't loan parts to drag racers 2) don't use modern slicks on cars with old rear ends.

[Formulajones]

Originally Posted by Goatracer1

My son was running my 3.55 limited slip rear end out of a 1965 GTO in his 1967 GTO 4spd with no problems at the drag strip. His car ran a mild rebuilt 400. He asked me if he could borrow my 28x10.5x15 MT slicks. First time he rev'd the engine and dumped the clutch the differential came apart. He removed the rear cover and all the pieces fell out. I learned 2 things that day. 1) don't loan parts to drag racers 2) don't use modern slicks on cars with 8.2 10 bolt rear ends.

I fixed it for ya

[scott70]

like was said,,just have a fun day and go up on your street tires. Thats what I do now with my gto ,,original muncie and factory 12 bolt. Try it a few times and you can get pretty good at knowing how aggressive you can get leaving without completely blowing the tires away. My best et's are letting the clutch out fairly quickly with a somewhat low rpm launch. The tires will slip just a little and then then start feeding it some throttle. Your dancing on the edge of blowing the tires away and then hope it doesn't break loose in 2nd or 3rd gear shift. I've been sideways before on the 3rd shift,,just be ready that it can happen. You can try this same technique with slicks without the worry of blowing the tires away. I look mainly at the mph to see how its doing power wise. If you loose traction bad your mph won't be good.

[grandam1979]

I have personally seen 2 8.2 rearends in A body Pontiacs split in half with the only thing holding them together was the rear cover and only thing holding the axles in was the tires hitting the quarter panels. I personally made the mistake of taking a 4.33 out of a 69 r/a IV car I had and thinking it would be great for street racing it made about 2 weeks and I destroyed it. With that said my buddy’s pure stock car has been running a 8.2 for the last 15 years pass after pass low to mid 12’s @ 110-115 it does have good axles in it. I was racing at the pure stock drags a couple years back I was in the left staging lane getting ready to do a burnout and the car in the right lane a 70 LeMans 400 4 speed pulls up pops the clutch and pow the rearend comes apart and all the fluid is on the ground in less than 30 seconds I just happen to look over and watched it happen.

[Tom Vaught]

Originally Posted by Chief of the 60's

I ran recap cheaters on my '65 back in the 70's. They worked pretty good considering track prep technology for the days. Today, they might work even better.

And yes, RECAPS. Its what many of your cheater slicks were back then. I also had them mounted to a pair of Rally II's off of a friend's '69 Judge.

Recaps were quite common in the old days. And worked pretty well for what they were used for.

Tom V.

[67gtospud]

Since a new rear axle just isn't in the budget, I'll stick to my street tires and hopefully I don't have too much tire spin. Hopefully I'll have enough motor to drive around a few guys on the big end since I doubt my 60' will be impressing anybody lol.

[TCSGTO]

You could run the slicks and just ride the clutch out from 3500-4000 rpm and ease the gas to the floor. It won’t be quite as quick as a redline dump but it will be quicker that regular street tires. Hard on the clutch but the axle will live.

[Ducks Goat]

I've went a best of 7.15 in the 1/8 using a 8.2 with a powertrax locker and 3.36 gears, usually ran 7.20s. This was in my '65 GTO weighing 3600lbs and an auto transmission. It lasted a few years before I had to put Moser axles in it, then it finally broke some teeth off the powertrax unit. I replaced it with a Moser 12 bolt, Detroit locker and 3.73 gears, it slowed down a tenth in the 1/8.

[AG]

How do you like the Detroit locker? I'm thinking of one for my 9".

[Ducks Goat]

Worked great until I totaled the car.

[Mcronk]

For what it is worth. 67 GTO wieghed 3,960 with me in car. Ran 2 seasons of NMCA back in mid 90's. Won stock ET championship in 1995. Also won GTOAA Nationals drags street class three times. Car had and still has the original 8.2 carrier. I ran either BF Goodrich Drag Radials (they sponsored me and I was in their ads when their drag radials first came out) or Mickey Thompson DOT Street ETs.

Engine was a 400 HO with smaller cam and low compression pistons for pump gas. It was tuned and i spent a lot of time on suspension. Trans was turbo 400, shift kit, and 2,800 stall. Gear was a 3.90 with a ring gear spacer (original 3.23 carrier). Best ET was 13.46 at 98mph. I have pictures of the car almost lifting left front tire off ground. Also shows both the MT and drag radials with a slight wrinkle on launch. The car hooked hard and ran a good 1/8 ET but with stock heads and a small cam not a lot of HP.

I did put Moser axles in the car about halfway through first season. Stock axles were still good and i still have them. I did have trouble with the ring gear spacer loosening and eventually damaging a couple of teeth on ring gear. Then at 1995 NMCA Finals in Memphis i broke the side gears first practice run. Luckily found a 8.2 in swap meet and the guy split both cases and put the side gears in my carrier. Also met a guy who later remachined the cone posi unit for me. Finished the race and made enough rounds to win championship.

While i had the original posi out being machined i put a open unit in car that was the right series for the 3.90 gear. Also put in a mini spool. Poor mans spool. That lasted a few races then I was at BOP race in Bristol. Won my class first night for King of Hill finals. Next day i launched the car in time trials and split the open case in half.

My opinion if you have the 4 pinion 8.2, run a automatic, no crazy Horsepower, good axles, and street drag radials i think it would last a long time with occasional use. If you are running a stick or racing every weekend it is only a matter of time before something breaks. The later 8.5 units are much stronger if that is an option.

Here is a video of that car.

https://www.youtube.com/watch?v=Xo6q...&index=10&t=0s

[Chris65LeMans]

Every time this comes up, I always mention that I had an 8.2" blow up on me at 70 mph on the freeway. You definitely don't want that happening.

[carcrazy]

I was down this road with my 67 Ram Air car and it didn't end well for the 4.33 10 bolt on multiple occasions! Stay with street tires, don't go crazy coming out of the hole hard and you'll probably be fine.