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Old 03-18-2022, 02:12 AM
Ramairnacho Ramairnacho is online now
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Default Tire size

I been wondering about my factory tires and have no clue where or if they still sell them. My phs doc states they where F70X14 WL FG. Im.not sure what that means, does anyone know? I'm also trying to figure out tire diameter to help determine rear end gear ratio to install. I really want posi. I probably will get a set of 15s too but not sure what type yet or possibly early honey comb 17x8. These options are to be brain stormed. Hope I can get help and if I could see pics of other members rims to help me determine. Thanks my factory rim size is a cl 14 x 7. Any recommendations on who restores these. I spoke with Stockton wheels and consider widening rear wheels to 8 inch, but it just a thought at moment
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  #2  
Old 03-18-2022, 03:27 AM
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WL= White Letter ( as in raised white Letter)
FG = Fiberglass bias ply tire.
F series tires are fine on 7 inch rims, go wider and you will shorten the height of the tire WHICH looks small already on 14 inch rims as far as the wheel well goes..
Stock wheels.. have them checked on a spin balancer first. anyplace can blast and paint black epoxy.

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Old 03-18-2022, 11:03 AM
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From your past posts, it seems like you are trying to keep the restoration as close to original as possible. If so, I would consider just refurb'ing the stock rims and get some Cokers (or similar). If not, just find a rim and tire combination that you like in whatever size and ensure the overall tire diameter is the same/similar as OE and have clearance.

FWIW...I put 18s on my '70.

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Old 03-18-2022, 11:55 AM
Ramairnacho Ramairnacho is online now
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Default Rims and tired

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Originally Posted by vertigto View Post
From your past posts, it seems like you are trying to keep the restoration as close to original as possible. If so, I would consider just refurb'ing the stock rims and get some Cokers (or similar). If not, just find a rim and tire combination that you like in whatever size and ensure the overall tire diameter is the same/similar as OE and have clearance.

FWIW...I put 18s on my '70.

Thank you for informing me. I realize 14 inch are not practical for everyday driving. But like to have a good original set or originals for fun and show and tell. Also am considering a nice set of 15 inch on up just not sure yet and that's going to help determine tire size I think for rear end ratio. Thanks fir showing your 18 inch they really nice. Do you know the diameter with tire


Last edited by Ramairnacho; 03-18-2022 at 12:13 PM.
  #5  
Old 03-18-2022, 01:33 PM
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Overall height on both front & rear is 26.7".

Front: 245/45/18 tires on 18x8 rim
Rear: 275/40/18 tires on 18x9.5 rim

This may help you - https://tiresize.com/calculator/

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  #6  
Old 03-18-2022, 02:29 PM
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ID:	586536I went with 235/55R17 tires on the YearOne aluminum rally wheel based on being able to get GR60/15's on the gen2 F-Body. The GR60's are 26.8" in diameter and the 235/55's are just 3/8" taller.

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Old 03-18-2022, 02:57 PM
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unruhjonny unruhjonny is offline
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the closest metric equivalent to an F70-14 is a 225/70R14;
I have observed that although the installed height is pretty much a dead-ringer, the tread patch is smaller;
My opinion is that a 245/60R14 is the best balance of tread patch and installed height when replacing an OE F70-14

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
The Following User Says Thank You to unruhjonny For This Useful Post:
  #8  
Old 03-18-2022, 03:21 PM
Ramairnacho Ramairnacho is online now
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Default Tires and rims

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Originally Posted by srmmmm View Post
Attachment 586536I went with 235/55R17 tires on the YearOne aluminum rally wheel based on being able to get GR60/15's on the gen2 F-Body. The GR60's are 26.8" in diameter and the 235/55's are just 3/8" taller.
Thank you for info. Do the 17 inch give you a harder ride since sidewall is only 35? I do like the rally 2 both 15 and 17. The 17 big honey combs are nice too. Greg dog my friend showed me some nice 73 rallies and some steel 15 inch. Yes I'm brain storming and all the input is good. Stockton wheel service charged 15 a rim to check for straightness and $55 to sand blast.. they a good price I believe. I can have powder coated but they suggested have them.painted body color, im.refering to the stock cl rims. They are a little pitted but if they still good I'll use them. But I want 2 sets so all the input I can get is good. I been playing with gear ratio calculator too and 331 is not that bad a 65 mph. I think I have a fear of breaking my engine or wearing it put. Lol. 30 years ago I raced my car on freeway with a used 400 engine only lasted 1 week. Driving fast and racing isn't cheap. Lesson learned. I want a good dependable muscle car with 400 to 450 hp on stock parts if possible. This is fun!

  #9  
Old 03-18-2022, 03:42 PM
Ramairnacho Ramairnacho is online now
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Default F70x14

I think these are same as original. Found like suggested on coker.com. diameter size is 26.2 which is good. Compared to the 245 ×60×14 at 25.65 with price of gas this is so.ething to consider. Yes a little more but in long run it might save money. I ve never done this before guys so help out a rookie. The 15 inch 215/70r15 have a tire diameter of 26.89 which isn't that much more. Hmm. If the Firestone are like stock. Then I like those alot. Advice please
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  #10  
Old 03-18-2022, 04:11 PM
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Quote:
Originally Posted by Ramairnacho View Post
... I'm brain storming and all the input is good. Stockton wheel service charged 15 a rim to check for straightness and $55 to sand blast.. they a good price I believe. I can have powder coated but they suggested have them.painted body color, im.refering to the stock cl rims. They are a little pitted but if they still good I'll use them. ...
Wait you have your car's born-with CL wheels!?
You lucky bum!

There are two wheel paint charts floating around, for a long time it seemed to be understood that very few colours were sprayed on (plain) steel wheels, but I found a while ago another paint chart that showed more colours were painted on these wheels - I was pretty stoked about this, because Carousel Red (my cars colour) was one of the paints applied to wheels according to this chart.

I think what's more important than gearing is the gear-head behind the (steering) wheel;
My car has always had 3.55 gearing - and even though I could save money by going with less gearing, you can also save money by driving slower, and more civilly.

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #11  
Old 03-18-2022, 04:39 PM
Ramairnacho Ramairnacho is online now
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Default Cl

Quote:
Originally Posted by unruhjonny View Post
Wait you have your car's born-with CL wheels!?
You lucky bum!

There are two wheel paint charts floating around, for a long time it seemed to be understood that very few colours were sprayed on (plain) steel wheels, but I found a while ago another paint chart that showed more colours were painted on these wheels - I was pretty stoked about this, because Carousel Red (my cars colour) was one of the paints applied to wheels according to this chart.

I think what's more important than gearing is the gear-head behind the (steering) wheel;
My car has always had 3.55 gearing - and even though I could save money by going with less gearing, you can also save money by driving slower, and more civilly.
Yez born with cl 14x7 and yes painted gold like the body. Thanks your funny man!

  #12  
Old 03-18-2022, 04:50 PM
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believe it or not, I once was able to crack 20mpg in my car on the highway.

If my memory serves me, I was going well below the posted limit (in the slow lane; posted limit was 100kph, I was doing about 80kph);
and I was running a '77 Pontiac 350 4bbl carb.

Jokes aside, 3.31 would probably also be a fine gear set for having fun, and getting mileage.
Looking to get 400-450hp AND get mileage, now that ain't going to happen without gear vendors overdrive, or an four speed auto (with OD).

I once thought about trying to get hp like that, but honestly the factory hp & tq that these cars make is amply fun for most people.

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #13  
Old 03-18-2022, 05:28 PM
Ramairnacho Ramairnacho is online now
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Default Tires and rims

Quote:
Originally Posted by unruhjonny View Post
believe it or not, I once was able to crack 20mpg in my car on the highway.

If my memory serves me, I was going well below the posted limit (in the slow lane; posted limit was 100kph, I was doing about 80kph);
and I was running a '77 Pontiac 350 4bbl carb.

Jokes aside, 3.31 would probably also be a fine gear set for having fun, and getting mileage.
Looking to get 400-450hp AND get mileage, now that ain't going to happen without gear vendors overdrive, or an four speed auto (with OD).

I once thought about trying to get hp like that, but honestly the factory hp & tq that these cars make is amply fun for most people.
Well my car came with 345 or 366 hp and I believe the carb has no more restrictions once rebuilt with a rebuild stocknengine .30 over I hope to be about 400hp but I might be wrong. I want to do the roller cam and lifters but was told they don't fit under stock value covers unless I double up value cover gaskets and that means leaking oil. I do have a pisi 10 bolt 2 42 and a standard 10 bolt 2 52 that will get me great milage and still do burn outs on freeway in turbo seconds gear. I believe you can drop it from d to s but push to the right when dropping trans gear and it doesn't lock in and you can ratchet shift with out button. I did a fat burn out in my 72 formuka from 45 to 65 mph on freeway on ramp with a stock t 37 350 2 barrel daily driver I built with the 72 turbo and a 79 2 42 in back. It was still a powerful car and great on gas. But my thread is on tires and I'm liking the fr79x14 with diameter of 26.4 Bigger than the fr60x15 that are 25.8 diameter. Time to get my cl preped bor paint

  #14  
Old 03-18-2022, 05:47 PM
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unruhjonny unruhjonny is offline
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You should read some of the dyno discussions that happen here on stock, or nearly stock engines.

FIRST LINK

SECOND LINK

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #15  
Old 03-19-2022, 09:32 AM
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No ride issues with the 55 series tires. I like how they do a nice job of filling the wheel opening while retaining the stock appearance. I'm running 3:23 ratio axle.

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Old 03-19-2022, 09:50 AM
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Quote:
Originally Posted by unruhjonny View Post
...by driving slower, and more civilly.
Can you please explain this? What does it mean? How is it done?

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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Ray Klemm calibrated Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear

https://youtube.com/shorts/gG15nb4FWeo?feature=share
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Old 03-19-2022, 10:53 AM
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unruhjonny unruhjonny is offline
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Quote:
Originally Posted by jhein View Post
Can you please explain this? What does it mean? How is it done?
you're funny.

i actually missed the joke, and initially typed a more serious reply.

lol

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #18  
Old 03-19-2022, 12:07 PM
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Quote:
Originally Posted by unruhjonny View Post
you're funny.

i actually missed the joke, and initially typed a more serious reply.

lol
You meant like this, right?

https://youtu.be/gMAJWJrnXNo

OK, now back to your regular programming...

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70 TA, 467 cid IAII, Edelbrock D-port heads, 9.94:1, Butler HR 236/242 @ .050, 520/540 lift, 112 LSA, Ray Klemm calibrated Q-jet, TKX (2.87 1st/.81 OD), 3.31 rear

https://youtube.com/shorts/gG15nb4FWeo?feature=share
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Old 03-19-2022, 12:40 PM
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unruhjonny unruhjonny is offline
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Quote:
Originally Posted by jhein View Post
You meant like this, right?

https://youtu.be/gMAJWJrnXNo

OK, now back to your regular programming...
lol

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #20  
Old 03-19-2022, 02:03 PM
Ramairnacho Ramairnacho is online now
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Default Tires

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Originally Posted by unruhjonny View Post
lol
Well im.not going to go around doing brake stands and stroke a number matching 1 of 293 auto formulas. That's just stupid. I actually never abused my car like that. It's stupid. I guess if I had a non number car it would be OK. In high school the other kids put wide tires I. The back and skinny tires In the front. I think it looks ugly. I like wide tires all the way around and low for better handling. I guess I'm not.into quarter mile racing. I like cruising looking at nice cars, hot girls and hitting the strip. Like in Reno on hot
August nights or Grafitii nights. Live in action car shows.

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