Author Topic: 1970 B9 road test  (Read 522 times)

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Offline RmK57

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1970 B9 road test
« on: August 29, 2019, 03:11:44 pm »
  Did any of the car magazines from back in the day ever road test a 70 Boss 429 ?

I've only ever seen the 69 model tested and the reviewers were not kind to the big Boss.

I would think the hotter camshaft in the 70 would have made a big difference in quarter mile times.

Offline CaBossFan

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Offline bossnbird

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Re: 1970 B9 road test
« Reply #2 on: September 03, 2019, 08:01:20 pm »
There is a magazine from 1970 that did a road test. The name is AUTODRIVER from February 1970. This magazine is really rare. I looked on E-bay for a very long time before I finally found one. Good luck with your search! 

Offline FIJI_99

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Re: 1970 B9 road test
« Reply #3 on: September 04, 2019, 03:30:58 pm »
Hey that’s my old car in the Hemmings magazine.  Would love to have that one back, it was ridiculously fast with how it was built.  Honored to have sold that to Dave in 2006.
Please register your car:  http://www.boss302.com/boss9reg.htm


KK 1710, family owned when I was a kid...reunited 5/7/2015



Offline crossboss

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Re: 1970 B9 road test
« Reply #4 on: September 05, 2019, 12:36:40 pm »
One of my older friends is an original 1970 Boss 429 owner (he still has the car!). Since his intent was to drag race the Boss, he immediately took it to OCIR to get a starting point on the 'stock' car. He was disappointed, it ran 14.43. He said it was such a dog, he was tempted to return it to the dealership. On a happy note, after some 'modifications, it eventually ran in the 12's.
Current lifelong project:
1969 Mustang Fastback/FOX chassis, 6 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase headed, intake mounted with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style…Whew!

Offline RmK57

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Re: 1970 B9 road test
« Reply #5 on: September 05, 2019, 01:26:26 pm »
  There was a Muscle Car Shootout on tv a few years back. I'm sure most everyone here has seen it where they ran a Hemi Challenger, GS 455, LS6 Chevelle and others and they managed a 13.74 out of the Boss 429, which was the quickest of the bunch. Not bad for a bone stock car. I would think a set of headers and a small set of slicks and you should be deep 13's or high 12's.

Offline crossboss

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Re: 1970 B9 road test
« Reply #6 on: September 05, 2019, 05:12:55 pm »
  There was a Muscle Car Shootout on tv a few years back. I'm sure most everyone here has seen it where they ran a Hemi Challenger, GS 455, LS6 Chevelle and others and they managed a 13.74 out of the Boss 429, which was the quickest of the bunch. Not bad for a bone stock car. I would think a set of headers and a small set of slicks and you should be deep 13's or high 12's.
[/quote




No, the Muscle Cars that run in these 'shoot outs' are not 'stock'. I ran my car at one of these events, and believe me everyone is fudging.
Current lifelong project:
1969 Mustang Fastback/FOX chassis, 6 speed, 4 wheel discs, with a modern Can-Am 494 (Boss 429), Kaase headed, intake mounted with a 1425 cfm 'B' Autolite Inline carb, ala Trans-Am style…Whew!

Offline IH8GM

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Re: 1970 B9 road test
« Reply #7 on: September 05, 2019, 05:52:27 pm »
  There was a Muscle Car Shootout on tv a few years back. I'm sure most everyone here has seen it where they ran a Hemi Challenger, GS 455, LS6 Chevelle and others and they managed a 13.74 out of the Boss 429, which was the quickest of the bunch. Not bad for a bone stock car. I would think a set of headers and a small set of slicks and you should be deep 13's or high 12's.

here it is

https://www.youtube.com/watch?v=i8uhHlDDe5c&list=PL9BBB4D5CCBE394BB&index=4
"DRIVE IT LIKE IT OWES YOU MONEY!"

Offline dso17

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Re: 1970 B9 road test
« Reply #8 on: September 06, 2019, 06:36:36 am »
My guess is the 70 Boss was a better performer after the shifter, exhaust and motor changes??
1975 AMC Pacer

Offline RmK57

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Re: 1970 B9 road test
« Reply #9 on: September 06, 2019, 09:39:24 am »
My guess is the 70 Boss was a better performer after the shifter, exhaust and motor changes??

The camshaft change alone for 1970 would have certainly woke up the engine. Iv'e heard around 25-30 hp, which you would feel in the seat of your pants that's for sure.

Randy

Offline 1963gmc

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Re: 1970 B9 road test
« Reply #10 on: September 07, 2019, 01:00:22 pm »
One magazine High Performance Cars November 1969 did sone serious testing and modifications and got their car into a faster class. Super Stock and Drag illustrated June 1969 did serious testing and changes to get faster times. Initial problems were the weaker valve springs with the hydraulic cams.