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Thread: Hillclimb Photos

Started 2 months ago by Julian
Hi, Some photos taken of my DRB GT40 at a hillclimb a couple of weeks ago. Course was very tight at the top, but still did well for it's first hillclimb. 12th outright and 1st in class. Mostly beaten by 4WD's and open wheeler hillclimb racers. I'll get them, after a slow and expensive (no doubt) development process... Yes, it rolls too much, so I'm working on swaybars presently. Some ...
Site: GT40s.com  GT40s.com - site profile
Forum: Video and Pictures Buffet  Video and Pictures Buffet - forum profile
Total authors: 6 authors
Total thread posts: 10 posts
Thread activity: no new posts during last week
Domain info for: gt40s.com

Other posts in this thread:

Simon M replied 2 months ago
Looks great! - Without reading your comment re the swaybars, I would have just assumed you were doing 200mph...;-)

flatchat(Chris) replied 2 months ago
Hey Julian, at least you're having a go and if you're getting grip then roll isn't that bad Tell me about your tyres, spring rates, sway bars, shockers and alignment specs -- maybe we can help a little --PM me if you prefer

Julian replied 2 months ago
Chris, Yep, it does get reasonable grip and so roll is not hurting it too much despite how it looks. Suspension geometry is pretty good, so a bit of roll won't be hurting. No suspension developement as yet. I keep chasing engine problems! Anyways, haven't done a competition wheel alignment yet, but basic specs are: 2.7 deg front camber (max we could get, yet maintain some reasonable ...

flatchat(Chris) replied 1 month, 3 weeks ago
It looks pretty good Julian --for a start. There'll be a fair bit of trial and error to suit your requirements in the handling department. Any other secrets I have will be PMd Hopfully this list will help a little :-

Dalton replied 1 month, 3 weeks ago
Julian, I'm sure Chris will be able to give you advice from experience. It sure looks like a lot of roll for a GT40, but the outside wheels, which are doing the cornering work, look to be positioned nicely at 90 deg. to the road so this is good and the geometry is working. With stiffer anti-roll bars, you will have the same weight transfer but with less movement. Experiment with adjustment to ...

flatchat(Chris) replied 1 month, 3 weeks ago
She was / is still a reasonably competitive "street" car (was never built as race car) -- although it didn't like some of the motors we built for it over the last 12 years, she still uses the same unmolested G50/01 trans (probably the same oil as well )

Pete McCluskey. replied 1 month, 3 weeks ago
Quote: Originally Posted by flatchat She was / is still a reasonably competitive "street" car (was never built as race car) -- although it didn't like some of the motors we built for it over the last 12 years, she still uses the same unmolested G50/01 trans (probably the same oil as well ) Chris, Thanks for posting the PDF file, very helpful.

JackW replied 1 month, 3 weeks ago
Your car looks great julian. I am sure there is nothing like blasting along at pace, even with a few technical issues. Regards Jack

Julian replied 1 month, 3 weeks ago
Thanks for replies. Been away working and not checking forum. Yes, I thought you were running 265's (or similar) front and rear Chris, and your photos tend to confirm more or less equal tyre widths. I've got all the theories and basics sorted. Have plotted front and rear caster/camber/bump steer curves and am happy with geometry. Regarding cambers and tyre pressures - easy enough. I'll use...

 

Top contributing authors

Name
Posts
flatchat(Chris)
3
user's latest post:
Hillclimb Photos
Published (2009-10-21 08:21:00)
She was / is still a reasonably competitive "street" car (was never built as race car) -- although it didn't like some of the motors we built for it over the last 12 years, she still uses the same unmolested G50/01 trans (probably the same oil as well )
Julian
3
user's latest post:
Hillclimb Photos
Published (2009-10-26 01:05:00)
Thanks for replies. Been away working and not checking forum. Yes, I thought you were running 265's (or similar) front and rear Chris, and your photos tend to confirm more or less equal tyre widths. I've got all the theories and basics sorted. Have plotted front and rear caster/camber/bump steer curves and am happy with geometry. Regarding cambers and tyre pressures - easy enough. I'll use thermal imaging to set both so as to...
Simon M
1
user's latest post:
Hillclimb Photos
Published (2009-10-16 07:37:00)
Looks great! - Without reading your comment re the swaybars, I would have just assumed you were doing 200mph...;-)
Dalton
1
user's latest post:
Hillclimb Photos
Published (2009-10-21 06:44:00)
Julian, I'm sure Chris will be able to give you advice from experience. It sure looks like a lot of roll for a GT40, but the outside wheels, which are doing the cornering work, look to be positioned nicely at 90 deg. to the road so this is good and the geometry is working. With stiffer anti-roll bars, you will have the same weight transfer but with less movement. Experiment with adjustment to see what suits your driving style; DRB have,...
JackW
1
user's latest post:
Hillclimb Photos
Published (2009-10-21 23:37:00)
Your car looks great julian. I am sure there is nothing like blasting along at pace, even with a few technical issues. Regards Jack
Pete McCluskey.
1
user's latest post:
Hillclimb Photos
Published (2009-10-21 17:32:00)
Quote: Originally Posted by flatchat She was / is still a reasonably competitive "street" car (was never built as race car) -- although it didn't like some of the motors we built for it over the last 12 years, she still uses the same unmolested G50/01 trans (probably the same oil as well ) Chris, Thanks for posting the PDF file, very helpful.

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