VW Bug Tire sizes and gear ratios transmission stuff

Рет қаралды 10,174

3 жыл бұрын

Here is a link to the gear ratio chart. Note the 4th gear ratio on the early trans is not .79 it is .82 from my old manuals. www.ratwell.com/mirror/sandli...
Tires size height chart tiresize.com/height-chart/ Use this amazon link to buy ANYTHING and it will throw some pennies in the jar toward Mike Fn Garage thanks for watching
amzn.to/2JPFrYh

Пікірлер: 56

@jefflator 3 жыл бұрын

Great Info! I just got my '66 bus back on the road and found that I really can't go faster than 50-55mph. I have big nut transmission with RGB's and Hankook 185/R14's (25.5" diameter). I did an experiment... the engine turns 4.9 times for a single rotation of the rear tire when in 4th gear. Now that you said it, maybe there is a beetle transmission in there. Looks like I need to go talk to my transmission guy. Thanks Mike.

@Mikefngarage 3 жыл бұрын

yea 205 75 is an inch taller than 185 sr14. I would run at least 3.44 gears. or a 3.88 with .82 4th. the best combo is 3.44 with .89 because it gives you a taller 3rd for climbing hills. Then you wont be so worried about getting rear ended climbing. I would highly recommend putting taller tires as well. I run tall tires in the rear and stock size in the front. 185 I believe matched up to stock size 14s. stock bus gears were 4.12 with .82 4th. max speed is about 65 and even at that they really run high rpm. about 3800. That is why so many fender wells were cut up. and lots of burned up motors.

@haskyb9184 3 жыл бұрын

Really useful, Mike. Was just about to order a new pair of rear tyres for a set of gas burners I’ve bought for my 56 oval and because of this video. I’m now ordering a different profile 👍🏻🇬🇧

@FixinBugsNStuff 3 жыл бұрын

Glad you point this out. This is so important for performance. Great job in explaining this. 👍

@Mikefngarage 3 жыл бұрын

Thanks for watching!

@ntahater 3 жыл бұрын

I run 195/75-14s on 14X6 inch wheels with the 4.12 1963 bug 1500 DP no issues.

@aussiebeatle4049 3 жыл бұрын

Nice chat Mike. Experience counts for credibility

@johnreinburg859 3 жыл бұрын

I appreciate you sharing this useful information!

@Mikefngarage 3 жыл бұрын

3.88 gears on my buddy's turbo car we hit over 90mph. in 3rd. but that was some serious RPM. like around 7000.

@muzzcovw7674 7 ай бұрын

3.88 were actually in standard and super beetles after 1971 and had the .91 4th. The last few years of Karmann Ghia had the 3.88 with .89 4th. I'm hunting for one to install in my '75. Should be perfect for my 1776

@bubot17 3 жыл бұрын

Great information there, thanks

@larrymcgarage2152 3 жыл бұрын

Good information. Thanks Mike.

@Mikefngarage 3 жыл бұрын

You bet!

@JamesDavis-to1hn 3 жыл бұрын

Very informative.

@SladesVWBeetle 3 жыл бұрын

Great info!

@hded06 3 жыл бұрын

Good stuff! Thanks!

@seanrigmaiden3887 3 жыл бұрын

I love videos like this. Great info Mike, thanks! Getting real world info on trans gear ratios is fantastic. It's not easy to change them like a set of carbs that were mismatched to and engine combo. Two questions. Is the green bug lowered? Do you think all the badges on the air intake could make the engine run hot? Thanks again for all your vids!

@Mikefngarage 3 жыл бұрын

it is lowered a bit 2 inches in he front and 1/2 notch in the rear. Badges are slightly angled and will help air go into the vents down the road. and there is plenty of room for air. car does not run hot at all. thanks

@seanrigmaiden3887 3 жыл бұрын

@@Mikefngarage Thanks for the reply Mike!

@Mikefngarage 3 жыл бұрын

B78 15 converts to 165.15 and is the same as 6.40 15 from what I see those were the original tire size for vw bug. also some guys used 5.60 15 which was the same as A78 15 and converrt to 155 15

@jimmywilkinson9190 3 жыл бұрын

On J burner it had B 60 13 on it and it would go 70 in 3rd and 72 in 4th ? backin the 70s here in Texas the speed limit was only 55 and if I was driving from San Antonio to Waco going 60 it would get 40 - 45 MPG unless I there was a cold front . going to Waco 30MPG to S.A. maybe 50 MPG with the front on out backs.

@davemcaferty6347 2 жыл бұрын

Thank you mike for the geeat video i have a 1962 vw bug its stock righr now i want to lower it and was wondering what size tires do you think i should run on the front and on the back the back tires i want them wider thank you

@Bacardibombillo 2 жыл бұрын

Love it. Now what about 30", 31" like baja Bug and Buggy? 4.12?

@jacquespoirier9071 3 жыл бұрын

the original size for the early bugs was 5.60-15 with the metric equivalent of 145-15, 165-15 was for the Volvoamazon .144 and P1800

@Mikefngarage 3 жыл бұрын

I have had original tires and they are definitely taller than 145 I have heard 155 but I think they are between 155 and 165 to be exact.

@IAm1InTheIAm 3 жыл бұрын

Thanks for sorting out the numbers. My goal in my '58 bus is to top out at 65 on the highway (I live in Alaska, no traffic). Will my 205/75R15's with the original split case and reduction gears and a built 1776 get me close to 65, ya think?

@Mikefngarage 3 жыл бұрын

probably 60 if it has the small nut.

@cyprianskiba8768 3 ай бұрын

When you say low profile, are you talking about the wheel diameter that is lower than OEM tire size? Because you can have low profile tires on bigger size wheels and have the same diameter or similar as an oem tire

@OwhyeeVdub 3 ай бұрын

So i just picked up a transmission out of a 71 super. I am thinking about using it in my baja with a 4.37 and 235 tires. Freeway speeds here are 80 - 90 and the baja does it fine without over heating and it spends at least 60 miles on the 40 miles on it to get into boise. You think the newer transmission may be geared to high to cause heating issues on the Freeway?

@chrisbeach992 3 жыл бұрын

Will 195/65r/15 tires be fine on 64 Beetle; all mostly stock, not lowered? Son's first car and looking for more tire tread contact on road with better handling.

@panchosspeedshop8576 3 жыл бұрын

Mike, based on the "cruising speed" listed in the owner's manual, cruising RPM calculates to about 3800 rpm (give or take a few RPM based on year). Why do you recommend less than that? IMO, if you are running hot at 3800 RPM, something's wrong with the engine, No?

@stevechan9914 2 жыл бұрын

So what about a rear 205 tire? With a 1679cc motor? Building a cal looker thanks with any info

@bacres 3 жыл бұрын

1962 Panel with 15" 195/65 tires and a 67 Bus odometer.. my speedo is constantly low by 10 MPH.. is there a fix for this??

@michaelyoung1901 4 ай бұрын

Just curious, what rpm is best for hwy cruising?

@davemcaferty6347 2 жыл бұрын

I just bought a back tire for my 1962 vw bug the tire size is 205/65/15 do you think i will be ok with that size tire

@nikittoo1 2 жыл бұрын

Hello I have a 67 bug with a freeway flyer on the front I have 155/60 15 rear 195/60 15 I’m thinking of putting 185/65 15 rear, would that be a good combination?

@Mikefngarage 2 жыл бұрын

I would go taller. Use a tire size chart get something at least as tall as the 165 80 15

@knockout818 3 жыл бұрын

Is that the stock pan on that 63 bug of yours?

@Mikefngarage 3 жыл бұрын

61 all original 60 all original

@jacquelinechellis4036 Жыл бұрын

How about a 4.37 with a .82 with stock tire.

@225supersix1977 Жыл бұрын

I have a Brazilian bug, it came with a 1600 engine (double Empi 34epc) and 4th 0.89 and a final ratio of 4.375....... if I put 205/75R14 on it, can I have a higher final speed?

@Mikefngarage Жыл бұрын

Yes But if you put 205/75 15 on the stock rims it would even be netter in a bug. Be similar to 3.77

@Mikefngarage Жыл бұрын

3.88

@user-to4dw1fk1h 7 ай бұрын

Does width matter for gear ratio running 1600 have stocked rims but my tire size in the back are 185 65 15 4in tall tire

@Mikefngarage 7 ай бұрын

need a tall gear for that size tire. look at tire size charts. and see how it comares to original 165 80 15

@Mikefngarage 7 ай бұрын

probably more than 2 inches shorter than stock.

@user-to4dw1fk1h 7 ай бұрын

Ok thk u

@Bacardibombillo 2 жыл бұрын

So 0.82 4th is considered a FreeWayFlyer🥰... But I'm confused on 3.88 vs 4.12 ratio wise.

@Mikefngarage 2 жыл бұрын

4.12 .82 4th is considered freeway flier. I like the 3.88 .89 has best all around gear ratios.

@Bacardibombillo 2 жыл бұрын

@@Mikefngarage did my homework....3.88,0.89 is best for low to mid engines, 4.12 for mid to high engines with 30" or higher tires.

@jeffgibson184 3 жыл бұрын

Since the speedometer runs off the front wheels on Bugs and Vans all these different tire sizes gives you inaccurate speed and mileage readings especially when you see those nasty Black and White cars looking at you

@Mikefngarage 3 жыл бұрын

yea for sure I usually have my front tires stock size and or smaller than stock. so my speedo is higher than stock. I run meats on the back and stock size on the front.