K_F

Owners or people who know others with 327/300 PG cars, can they burn rubber or even squeal off the line? I own a 67 and can do neither? But I can with my 96 infiniti which has a 190HP V6 auto with much lower torque than my vette? Is somehting wrong? Can it be timing that is causing this or is it just the nature of the beast?

LabRat

I have to go back to 1967 to remember this. My "62 was a 327/250 Powerglide and if you really brake checked and stood on the gas it would squeal a little. I believe it was 3:08 gears and the soft Powerglide combo that made it a quiet leaver. The upside was a top speed near 125 with the cruising gear set. Also the gas milage was an easy 20+, not that it mattered to most people. I was on the GI Bill going to college so it did help me. At 21 and single I would have put up with 10 mile to a gallon, and worked a 2nd job to keep my "chick magnet" Ah, the good old days. Save the Wave.

bk2w

While not exactly a 327/300, my '58 has an engine that's close to it, as well as a Powerglide and a 3.55 rear end. And yep, I can squeal the tires off the line if I floor it. I can probably squeal even easier once I get the carb properly tuned to elliminate the hesitation I'm currently seeing.

Part of the issue may be tire width. Are your Infiniti's tires noticably thinner? We have a 70HP Geo Metro that's rather easy to squeal tires with exactly because the tires are so narrow. Another part may be FWD versus RWD. I'm not yet convinced that it's caused by weight transfer, but for wahtever reason it seems much easier to sqeual a FWD car than a RWD car.

Cheers,
-Brian

K_F

Yes I was thinking the PG was playing a big factor in this. The tires I am running are 215/70/15 so they are a little thicker my Infiniti has 205's I believe. I myself do notice hesitation when I punch it as well, I didn't know if it was carb or timing. In terms of carb do you think fuel mixture should be turned up or down?

SilverC1

Front-wheel-drive versus RWD makes a huge difference in tire-squeeling ability. A lot of the current Infiniti models are RWD, but back in 1996 I am guessing FWD.

The weight transfer off of the front wheels is pretty significant - it is hard to avoid spinning the wheels with anything approaching 200 hp in a FWD car. It's the fundamental problem with hot-rodding an Acura Integra, Honda Civic, etc. - getting the power down. It's also why Porsche 911's have such good 0-60 times (even the 2WD versions), for their HP rating - with a pronounced rear weight bias to begin with, plus weight transfer, they get tremendous traction off the line.

bk2w

It's funny to see how many Integras, Civics and Accords are fitted with huge rear spoilers. Keeps making me laugh.

-Brian

magicv8

I can remember a buddy picking me up in 64 with his new impala convertible - a 327/300. He was dropping rubber in all 4 gears (4th only a chirp) and the car had positraction.

I had a 327/300 63 Corvette in 1966 that would.

PS Do you know how to power shift??

nassau66427

If you want to squeal your tires, place the transmission in neutral and bring the motor up to 5000rpm. Place the transmission in drive and your tires will definitely squeal. Repeat as desired or until something breaks.

You can also get your tires to squeal by driving in reverse and then while letting your foot off the gas, quickly shift into drive and mash the gas pedal.

newbe60

put a 4.11 rear in.. i have one in my 1960.. and in third gear when I let off the gas going 15-20 mph..and punch it the tires will chirp.. first with the 4.11 and a wide ratio.. will be chirping so much it will sound like a flock of seagulls..

then again it has bf goodrich radial T/a which like to chirp.. and non-posi which also helps

K_F

Yeah there is a big diff between FWD and RWD, I have brand new rubber as well so as time goes on hopefully they will loose a bit of tread. I saw a guy at the local donut shop throw his 85 buick skylark into reverse and then stood on the gas to squeal his tires...I vowed never to sink to that level. The high RPM neutral to drive trick sounds interesting..I may give that a try. My car is a non POSI with the std 3.08 ratio (I think). No doubt a 4.11 would definetly help, I guess untill I get money to put a create engine in it will just look and sound pretty. Anyone know any mild mods to boost torque?

nassau66427

What kind of shape is your tranny in? If it is worn out and slipping, any amount of engine mods won't improve your performance any.

cv67

If that vette had the same gearing the infinit does it would do a lot more than chirp! Ever driven a Powerglide?

K_F

My PG transmission is good shape....smooth but slugish.

SpartyGW

It's probably your gearing. What gear is in the differential?

My dad and I are in the process of restoring a 64, but I've had my 67 Camaro for many years. It was a 327/275 powerglide car with 2.73 gears when I got it. With that gearing it would only spin a tire if the pavement was wet. A complete dog out of the hole.

Swapped to a 3.36 gear and that was enough to make all the difference in the world. The first gear of the powerglide (1.72) is like taking off somewhere in between 2nd and 3rd gear with an M20 Muncie.

After the 3.36 I eventually put a 3.73 and now a 4.11 gear once I started racing the car. It's now a street legal car that has run as quick as 10.67@125 with a naturally aspirated small block. Now I spend tons of effort and $ trying to stop the tires from spinning!


-gw

Camaro racing pic

Paul L

I gave it a try at the dragstrip. Left foot on brake and revving to 2,500rpm gave me a sharp chirp. That's all.

JohnZ

Better have about $1,000 to spare in your wallet if you try that, and prepare to pick up a bunch of parts off the pavement

K_F

I will use the rev in neutral to drive carefully....I have the std 3.08 gears in my 67 an ugly combo (327/300-PG-3.08) Is it a big deal to switch the gears on my 67?

Vette-66

Just add 100 cu in's and problem solved

K_F

If I had the money sure why not a 427 hopefully the differential will be a little cheaper...

g267 I just noticed the pic and wow! Did you apirate the original 327/275 engine? Still running the PG tranny? 10.67!! looks fun..but scarry at the same time - nice mix.

SpartyGW

No, I gave up on the 327. It's a 400 small block with a solid roller cam now. In hindsight it would've been a lot easier to get here with a big block, but oh well.

As for your rear gears...It's the one thing on my car I have not tried. I built this engine in my garage but have been scared of setting up gears. A friend did it to his drag car this year out of necessity and I think I was scared for no good reason. If you have the tools (namely a hydraulic press and dial indicator) it can be done. It cost me about $400 each time I had a professional setup my gears FWIW. The ring and pinion should be in the neighborhood of $150 or so. If you decide to make a swap you'll also need to plan on buying a new speedo gear for the tranny. I can't recall what those little plastic gears cost but they aren't much.

I say go for it! A 3.36 or so would be a very streetable gear and will give you good torque with approximately a 9% increase in torque to the rear wheels. A 3.73 would yield about 21% more, and a 3.55 about 15%. You have to decide what RPM you're comfortable with on the freeway. You won't regret the gear change in my opinion.

-gw