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Old 09-24-2023, 05:35 PM
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Quote:
Originally Posted by HWYSTR455 View Post
Finally, to open the rabbit hole, why do dragsters have no front brakes?

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No weight to speak of on the front axle and that chassis really cannot transfer weight to the front axle in any appreciable amount if there were brakes up front. The 300 inch wheelbase isn’t likely to transfer much weight to the front axle.

Braking forces would twist the front axle out of the car if they did have brakes.

I used to drag race a 12-second VW with no front brakes, it stopped fine at over 105 mph after a run, of course this 1300 pound car was heavily rear weight biased.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/3.08
2002 WS6 Convertible LS1/4L60E/3.23
1966 VW Type 2 Single Cab Pickup 140hp 2276
1956 VW Type 2 Panel Van 36hp 1200
1957 VW Type 1 Beetle 180hp 2276
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Old 09-24-2023, 06:52 PM
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Quote:
Originally Posted by b-man View Post
No weight to speak of on the front axle and thar chassis really cannot transfer weight to the front axle in any appreciable amount if there were brakes up front. The 300 inch wheelbase isn’t likely to transfer much weight to the front axle.

Braking forces would twist the front axle out of the car if they did have brakes.

I used to drag race a 12-second VW with no front brakes, it stopped fine at over 105 mph after a run, of course this 1300 pound car was heavily rear weight biased.
Exactly. Bias.

Quote:
Originally Posted by DaleO View Post
I think there is info here to consider. "Paragraph" four touches on greater rear bias as could be bad depending on how much more there is. ....
Yes, how much bias, that's what the formula/calculator helps determine, how much. Depending on the type of car, the intended purpose, there are more desirable front/rear ratios.

Another extreme example, you don't take a rail dragster on a road course.

Just because something 'works', doesn't mean it's optimal.

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  #3  
Old 09-24-2023, 06:54 PM
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b-man, that drag bug is cool!


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
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Old 09-24-2023, 07:39 PM
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b-man, that drag bug is cool!.
This 1957 bug was the second car I’ve ever owned, I bought it as pretty much a bare shell with floor pan and front suspension in March 1977. By summer of ‘77 it was out on the streets running in the 14.30s at 92 mph with a 1756cc engine. It could handle pretty much any muscle car or 750cc motorcycle that i happened upon while marauding around the streets at night.

By 1980 it became a very stripped down 12:1 compression 1835cc dedicated race car, I last hit the track with it in October 1981 on my 22nd birthday as seen in the photos in my previous post.

Now I’m bringing it back to life with a new 2276cc 9.5:1 street engine. Since 1989 it had been back and forth between my good buddy and myself few times and in December 2020 I let sentimentality get the best of me and now I’m deep into it money and time-wise. The first time I let the car get away in 1989 I traded it to my friend for his 1964 GTO which was my first Pontiac.

Photos in sequence, as found getting cleaned up, in the burnout box 1978, race day October 1981, rescued from poor storage December 2020 and lastly a couple weeks ago separated from the tube axle race-only 1967 gasser chassis my friend put under it, getting ready to have some body repairs done. It’s going back onto a stock chassis again, street racer special like it was in 1977 just about 2 seconds quicker.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/3.08
2002 WS6 Convertible LS1/4L60E/3.23
1966 VW Type 2 Single Cab Pickup 140hp 2276
1956 VW Type 2 Panel Van 36hp 1200
1957 VW Type 1 Beetle 180hp 2276
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Old 09-25-2023, 11:08 AM
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Very cool! Love the history and vintage shots!

There's a heavy bug following around me, some of them are insanely fast. Guy has a rabbit that's in the 9s, turbo street car. I still prefer the classics though!


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
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