Club Cobra
Page 2 of 2 1 2
Show 20 post(s) from this thread on one page

Club Cobra (http://www.clubcobra.com/forums/)
-   ERA---Speak with Bob Putnam (http://www.clubcobra.com/forums/era-speak-bob-putnam/)
-   -   6-pin or bolt on? (http://www.clubcobra.com/forums/era-speak-bob-putnam/131140-6-pin-bolt.html)

J.Jensen 09-23-2014 12:08 PM
OK, now I´m confused.

Which one is it? The adapters for bolt-ons make it heavier or the six-pins make it heavier?

patrickt 09-23-2014 12:56 PM
Quote:
Originally Posted by J.Jensen (Post 1319882)
OK, now I´m confused.

Which one is it? The adapters for bolt-ons make it heavier or the six-pins make it heavier?
Quote:
Five-pin pin-drive wheels are also available from Trigo and Vintage Wheels. The wheels look exactly like the 6-pin from the outside, but are driven by special lug nuts that hold on the pin drive adapter. These will add about 4 pounds per wheel, but the system will save you about $1000 over the original six pin wheels.
Having anything else would just look terrible, regardless of the weight loss or gain.

Source: ERA Wheels Page

KevinW 09-23-2014 12:57 PM
I don't understand some of these comments.

Unless you are a racing driver, with racing driver skills aimed at winning races, why would you care if the car was a few % heavier? I'll bet 99% of people would never notice the difference.

DanEC 09-23-2014 05:18 PM
Quote:
Originally Posted by KevinW (Post 1319887)
I don't understand some of these comments.

Unless you are a racing driver, with racing driver skills aimed at winning races, why would you care if the car was a few % heavier? I'll bet 99% of people would never notice the difference.
You are correct - not a large percentage of people will track their cars hard enough to notice it, much less benefit from it. But hey, these cars are certainly not all about practicality so if it feels good, gives bragging rights, or they just do it because they can - more power to them.

patrickt 09-23-2014 05:35 PM
Quote:
Originally Posted by DanEC (Post 1319913)
You are correct - not a large percentage of people will track their cars hard enough to notice it, much less benefit from it. But hey, these cars are certainly not all about practicality so if it feels good, gives bragging rights, or they just do it because they can - more power to them.
ERA2076 is pretty bright when it comes to the weight of different components on ERAs. I think he was saying that if you really want the lightest possible part, a specialized bolt-on is the way to go as opposed to any pin drives, five or six. Personally, I just don't like the looks of bolted wheels on Cobras.

lippy 09-23-2014 06:19 PM
Yeah, I agree. I think the look of pin drives just makes the car.

The extra weight of the adapter actually makes more of a difference than you might think because it's unsprung weight. That said, I have the five pin adapters and they work great and I don't think I personally would feel the weight difference.

ERA2076 09-23-2014 07:31 PM
Increasing the weight by 10 to 15% (or more) is getting too far way. I ran with some 2200 lb, 300 hp Miata's (turbo) on a technical 16 corner course. Half of the corners were in 2nd gear in the Mustang. They never got out of 3rd. I followed them as well as I could (terrible) to try to get some gage of what a 289 might be like (similar weight and wheelbase) They were amazingly fast in the corners. Much less weight to slow, much less lateral weight transfer, and a lot of momentum left on exit. I plan to try running with them.

Quote:
R&T on CSX2000

With regard to handling, we reported that the Cobra, with its light 2020-lb. curb weight and excellent 48/52 balance, was good, but could be tricky: "With so much power on tap, the inept or inexperienced could get into considerable trouble, but a middlin'-good driver can certainly get the car around a race course in a hurry. .................................................."

Shelby CSX2000 Road Test - The Original Cobra - Road & Track
2020 curb Street - 2400 is 20% - 25 is over the top. :confused:

un-sprung weight => lateral weight transfer

Form follows function - build it lite

If its a 427, do what you will. :LOL:

chr

lippy 09-23-2014 09:31 PM
For the ERAs, I'm not sure the 289 chassis and body is necessarily lighter than the 427, without engine. For the engine, you can build an FE pretty light these days. Mine is all aluminum and the Pond FE block weighs 125#. Correct me if I'm wrong (Brent), but I think a Dart 302 race block weights about 115#. While I love FEs, I acknowledge the 302 and 351 small blocks are probably better designs. I don't think they weigh a lot less though.

J.Jensen 09-24-2014 01:18 AM
The ridiculously expensive Shelby block weighs in at 90# (their claim), and the rotating assy and heads also being slightly smaller - probably also a tad lighter than the FE counterparts.

I might not feel a difference on the track. But I would always have it in the back of my mind if I cut a corner to save a grand in the wrong spot.

Its a two-way thing. If your car is capable of being pushed further than the limit you stop on - building it better is widening the envelope and inherently safer. If you use the expanded capability to go even faster - because you already matched the cars limit - when **** hits the fan it hits a lot harder. Its a two sided sword, but I think I´m a bit smarter on the track now than I was 10 years ago. Back then it was all in for that last 10th with no regard of risk, but spinning out above 100mph teaches a young mind a thing or two...

*13* 09-26-2014 03:42 AM
I've said it a 1000 times. These cars are merely a Go-Kart with a V-8. A stock 289 with a little camshaft addition is quite enough for the street. You'ld best best, in thought, if you spent your money on rubber, first.


All times are GMT -7. The time now is 07:21 AM.
Page 2 of 2 1 2
Show 20 post(s) from this thread on one page

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: