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Old 2nd October 2016, 09:04 PM   #1
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Derek Bell GTD/Lola suspension paper

Does anyone have a copy of the Derek Bell paper on how he improved the suspension on his GTD chassis that was the basis of his T70 Lola. I have looked for a reference for it online several times but I think the page/website has been removed.

If you have a e-version that would be great, however if you only have a paper version I would be willing to pay you for your copy and mailing costs. Let me know and we can exchange addresses.

Thank you in advance, Howard Jones
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Old 3rd October 2016, 01:38 AM   #2
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Re: Derek Bell GTD/Lola suspension paper

I had it at one time Howard. I'll do some digging and see what I can find.

Regards Brian
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Old 3rd October 2016, 02:41 PM   #3
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Re: Derek Bell GTD/Lola suspension paper

It is no different to what is done to modify the GTD 40 chassis by many on this site, as it was identical, save for the upper framing being different to suit the T70s bodywork.

Dereks car ran, and still has the out of keeping 17" rims, which could accept larger brakes.

He has not owned the car for some years now, and it has changed hands a few times.
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Old 3rd October 2016, 07:49 PM   #4
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Re: Derek Bell GTD/Lola suspension paper

I'd be interested in reading the Derek Bell document if somebody has a copy???


thanks

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Old 4th October 2016, 06:26 PM   #5
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Re: Derek Bell GTD/Lola suspension paper

Thanks Brian, guys, I remember that the write up included quite a bit of before and after data along with his take on what needed to be done on the front of the car. I should have saved it long ago but alas I didn't. I would love a copy and would pass it on to others as requested.

Other have corrected me on the subject of which Derek Bell we are talking about. I now understand the names are the same but "Mr LeMans " isn't the author of the paper in question.

Thanks again.
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Old 5th October 2016, 02:03 AM   #6
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Re: Derek Bell GTD/Lola suspension paper

Sorry Howard, it looks like I can not come thru for you. I have looked high and low for a printed copy, but haven't located one. I thought I saved a electronic version also, but I just have a dead link to his web page. I'll keep looking, but it isn't looking good. SORRY !!

Regards Brian
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Old 5th October 2016, 06:58 AM   #7
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Re: Derek Bell GTD/Lola suspension paper

Well, if you can zoom in, the answer is

here>>>>>>

I have to say, it's a really impressive car..replica or no....

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Old 5th October 2016, 12:32 PM   #8
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Re: Derek Bell GTD/Lola suspension paper

I think this may be what you are looking for:

https://web.archive.org/web/20081008...les/suspn1.htm

https://web.archive.org/web/20081008...les/suspn2.htm

https://web.archive.org/web/20081008...les/suspn3.htm

Wayback machine looses the pictures, but I think it may be what you need (hope so!!).

Regards,

Karl
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Old 5th October 2016, 01:07 PM   #9
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Re: Derek Bell GTD/Lola suspension paper

Fantastic ! Many thanks karl...

Few shots of this splendid car, recently sold again in UK.
Attached Thumbnails
Derek Bell GTD/Lola suspension paper-bell-lola-1-jpg   Derek Bell GTD/Lola suspension paper-bell-lola-2-jpg   Derek Bell GTD/Lola suspension paper-bell-lola-3-jpg   Derek Bell GTD/Lola suspension paper-bell-lola-4-jpg   Derek Bell GTD/Lola suspension paper-bell-lola-5-jpg  

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Old 5th October 2016, 01:08 PM   #10
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Re: Derek Bell GTD/Lola suspension paper

A last one... It seems to have been slightly modified again since the pic published by Prof. Plumpe.

If you need some nice screen savers...

http://www.vintagerollsroycecars.com...lola-t70-coup/
Attached Thumbnails
Derek Bell GTD/Lola suspension paper-bell-lola-6-jpg  
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Old 5th October 2016, 01:24 PM   #11
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Re: Derek Bell GTD/Lola suspension paper

A fantastic looking car! Thanks for posting the pictures!
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Old 5th October 2016, 08:32 PM   #12
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Re: Derek Bell GTD/Lola suspension paper

Karl, thanks for the links?

I read the paper with a great deal of interest. Then went out to measure my rear camber gain on the project just to get a feel for what I had done. Remember, this was a second set of uprights in which I lengthened the upright above the axle by one inch, in order to increase camber gain over the previous fabricated upright. Original thoughts when designing the first set was a chassis with less roll than the current chassis actually has. The result was insufficient camber gain, necessitating a larger amount of static negative camber. The measured values tonight were a gain from full droop to full bounce at 3.32 degrees of negative camber gain.

Good...bad? The most recent track session I had a month ago indicated a significant improvement. Track-out speed increased by 4 mph, with even wear and temperatures, and with reduced static camber. I all honesty, I was a bit confused at why the car behaved much better in the turns thinking I had pretty much set up the suspension the previous track day I attended, but then realized that had not included the new uprights during that set-up.
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Last edited by blueovalz; 5th October 2016 at 08:38 PM.
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Old 6th October 2016, 01:18 PM   #13
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Re: Derek Bell GTD/Lola suspension paper

THANK YOU KARL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Now how can I save that electronically. I would love to save that as a MS word doc, but a PDF would be fine.
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Old 6th October 2016, 01:42 PM   #14
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Re: Derek Bell GTD/Lola suspension paper

The easiest way would to just copy it all and paste it into a word document. The pictures are already gone.
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Old 6th October 2016, 01:49 PM   #15
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Re: Derek Bell GTD/Lola suspension paper

Ya, I jumped the gun on asking how. Working on this now and I will try to convert to PDF form. If I get this done I will post the PDF's here.

THANK YOU AGAIN!!!!!!!!!!!!!!!
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Old 6th October 2016, 02:05 PM   #16
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Re: Derek Bell GTD/Lola suspension paper

There is also a great article on aerodynamics:

https://web.archive.org/web/20080914...20part%201.htm

https://web.archive.org/web/20081008...20part%202.htm

https://web.archive.org/web/20081008...20part%203.htm

I thought I would include that too. It would be a shame to see this work disappear.
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Old 7th October 2016, 02:08 AM   #17
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Re: Derek Bell GTD/Lola suspension paper

THANK YOU Karl. I have once again saved this to my computer, and have also printed them off. I appreciate you finding these.

Regards Brian
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Old 10th October 2016, 08:36 PM   #18
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Re: Derek Bell GTD/Lola suspension paper

Glad to help! My knowledge on the cars is not a patch on many many others here! I am glad that there is an area that I am able to add value!
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Old 10th October 2016, 09:15 PM   #19
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Re: Derek Bell GTD/Lola suspension paper

PDF form:
Attached Files
File Type: pdf D Bell GTD suspension mod pg1.pdf (117.5 KB, 114 views)
File Type: pdf D Bell GTD suspension mod pg2.pdf (149.5 KB, 64 views)
File Type: pdf D Bell GTD suspension mod pg3.pdf (149.5 KB, 67 views)
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Old 11th October 2016, 12:50 AM   #20
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Re: Derek Bell GTD/Lola suspension paper

Thanks Howard (and Derek)


regards

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