Those are not bad numbers for hard street tires. With slicks you could be 12.50 or so. Throw a small nitrous kit on it and go low 12's.:devil:
Went to the track tonight.
To try out the 406, other then a few minor tuning issues & destroying 2 Alt. belts it was fun, this was on street tires, now its a cutlass not a chevy-II, hope you don't mind. I only got in 2 passes, the 3rd. was a wash, 1st. pass went 13.28 @ 104 on a 2.21, car felt lazy up top, so i pulled some timing & it liked it, next pass went 13.03 @ 106 on a 2.18, both passes i left easy not to blow the tires loose, left alittle harder on the 3rd. pass & got squirly, then popped another belt. I know its not that fast but had fun. 
Still need to work out some bugs, the temps were 95* on these runs.
Still need to work out some bugs, the temps were 95* on these runs.1 - 18 of 18 Posts
Definately get the belt tossing issues straightened out. Then you can focus on having fun with the car.
One of my friends could never keep belts on at the track until we got a different crank pulley and alternator mount. Visually it looked straight, very close with a straight edge, but it was always tweaked just so...
One of my friends could never keep belts on at the track until we got a different crank pulley and alternator mount. Visually it looked straight, very close with a straight edge, but it was always tweaked just so...
Yeah, looks like i need a smaller crank pulleyDefinately get the belt tossing issues straightened out. Then you can focus on having fun with the car.
One of my friends could never keep belts on at the track until we got a different crank pulley and alternator mount. Visually it looked straight, very close with a straight edge, but it was always tweaked just so...
My last 406 in my 71 Nova would throw the belt. It looked pretty straight also. I ended up shortening the alternator spacer just a tad, and then another tad. After that it never threw it again and I ran it anywhere from 6500-6800 rpms. I was guessing it was due to the front face of the aftermarket heads.
Mine use to do the same thing, ripped those pulleys off and swapped everything to cog drive, except the power steering.
Right too 7k no more problems!
Right too 7k no more problems!
Mine did to, until I bought a whole new set of pulleys. I have a set of March underdrive pulleys
Back when these cars were new all the hi po engines came with deep groove pulleys. I never had any issues with a motor that had deep groove pulleys.
Standard groove pulleys here short water pump. All pulleys are aligned and have never thrown a belt in almost 20 years with the car. Shift point is 7200. FWIW
If your alternator is on the driver's side it shouldn't throw the belt as it is being pulled into the groove. Passenger side and it's trying to push the belt therefore throwing it off. Just saying as I think most short pumps probably have the alternator on the driver's side.Standard groove pulleys here short water pump. All pulleys are aligned and have never thrown a belt in almost 20 years with the car. Shift point is 7200. FWIW
Actually i neglected to mention that i have a super stout low mount alt bracket on my car.If your alternator is on the driver's side it shouldn't throw the belt as it is being pulled into the groove. Passenger side and it's trying to push the belt therefore throwing it off. Just saying as I think most short pumps probably have the alternator on the driver's side.
I see what you are saying but if you think about it, no matter how the alt is positioned it is being pulled by the belt. On the passenger side the belt is longer on the non driven side and it can flap around more and throw easier
passenger side mount spins 6800 rpms no problem
I may try a shorter belt & check the alignment.
Grind 1/8" off of the alternator spacer if it even looks a little off. You got to look at it hard from the passenger side fender. I regularly buzzed mine from 6500-6800 and did 7000 rpms at times as well. Never slung it after I shortened the spacer. Only slung the belt when I first got it going and hitting it on the street so I shortened it before I took it to the track.I may try a shorter belt & check the alignment.
I'll try that, plus it might benefit having a shorter belt.Grind 1/8" off of the alternator spacer if it even looks a little off. You got to look at it hard from the passenger side fender. I regularly buzzed mine from 6500-6800 and did 7000 rpms at times as well. Never slung it after I shortened the spacer. Only slung the belt when I first got it going and hitting it on the street so I shortened it before I took it to the track.
A 13.0 on street tires is pretty fast to me. With some good tires you'll be mid 12's easily.
I used to run 2.2 and 2.3 60 ft times with the street tires, but I put on some M/T ET street radials and it hooks great now. They drive on the street like a normal tire too. Not sure how they go in rain though, but I never drive in rain anyway.
I had the same experience years ago with timing. The car felt good on the street, but when I ran it, it wasnt right. Backed 4 degrees out of the timing and it flew! Thats why TNT nights are great!
Wish I could help on the belt issue, but I just have all my original pulleys and stuff and lined them up as best I could by eyeballing it and Ive never had any issues. I shift at 6000 RPM but on the street it rarely sees above 4K unless I have a stretch of road with no traffic and lots of room.
Sounds like a nice ride to me, good luck and enjoy the summer!
I used to run 2.2 and 2.3 60 ft times with the street tires, but I put on some M/T ET street radials and it hooks great now. They drive on the street like a normal tire too. Not sure how they go in rain though, but I never drive in rain anyway.
I had the same experience years ago with timing. The car felt good on the street, but when I ran it, it wasnt right. Backed 4 degrees out of the timing and it flew! Thats why TNT nights are great!
Wish I could help on the belt issue, but I just have all my original pulleys and stuff and lined them up as best I could by eyeballing it and Ive never had any issues. I shift at 6000 RPM but on the street it rarely sees above 4K unless I have a stretch of road with no traffic and lots of room.
Sounds like a nice ride to me, good luck and enjoy the summer!
I came up with an idea on the alt., pulled off the pulley & welded a flat round peice of 16 gauge steel about 4.5" in diameter to the outside of the pulley & made an access hole for the bolt, this should keep the belt from flying off.
1 - 18 of 18 Posts
- This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Chevy Nova Forum
A forum community dedicated to all Chevy Nova, Chevy II, Acadian owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Recommended Communities
