...15 URO...

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mikeg15

287 posts

200 months

Monday 11th March 2013
quotequote all
Unless the steel wheels are designed for competition, I'd stick with the alloys as ordinary steel wheels have quite a lot of flex and may develop fatigue fractures particularly around the stud holes. This might not be a problem if the tyres are narrow period types, but modern rubber is capable of delivering much larger loads into the hubs and suspension than was the norm in the '60s.

geeeman

Original Poster:

1,310 posts

255 months

Monday 11th March 2013
quotequote all
mikeg15 said:
Unless the steel wheels are designed for competition, I'd stick with the alloys as ordinary steel wheels have quite a lot of flex and may develop fatigue fractures particularly around the stud holes. This might not be a problem if the tyres are narrow period types, but modern rubber is capable of delivering much larger loads into the hubs and suspension than was the norm in the '60s.
the wheels im looking at are a spun forged aluminium, specifically for racing applications in cars weighing less than 700kg. they are the best ive found in terms of strength and weight- around 3.5 kg or less. (they just resemble a steel in their appearance)

plyspeed

12 posts

136 months

Monday 11th March 2013
quotequote all
geeeman said:
the wheels im looking at are a spun forged aluminium, specifically for racing applications in cars weighing less than 700kg. they are the best ive found in terms of strength and weight- around 3.5 kg or less. (they just resemble a steel in their appearance)
that´s what i am looking for , or woobly wheels, correct for period

geeeman

Original Poster:

1,310 posts

255 months

Monday 11th March 2013
quotequote all
here you go Klaus

http://www.braid.es/wheels/products/competition-wh...

can be anodised in any color. around 3.3 kgs for the size i need


a pic of them on a car:
http://www.braid.es/wheels/galleries/competition_p...


interestingly braid also make the forged wheels for the G55

mikeg15

287 posts

200 months

Monday 11th March 2013
quotequote all
plyspeed said:
that´s what i am looking for , or woobly wheels, correct for period
http://www.historicracing.org.uk/parts/wheels.html
Wobbleys only £350 each !

dandarez

13,273 posts

283 months

Monday 11th March 2013
quotequote all
geeeman said:
AussG4 said:
For what it's worth, in my opinion I would stick with the mini-lites.
With revolution mags being a distant second and only other wheel of choice.
unfortunately the minilites made by compomotive which i have on my G4 are 6kg each. certainly not light-weight. they are also not an ideal offset. The 4 spoke revolution is much better at around 4kgs.
How much do proper TecDel Minilites weigh? I was down at their factory in Somerset - must have been about 8 years ago - when there was a proposal to do a book history on the company (never happened). I do remember thinking some of the Minilite Magnesium wheels were a tad expensive!

Then they moved up north somewhere. Are they still in business?

geeeman

Original Poster:

1,310 posts

255 months

Monday 11th March 2013
quotequote all
http://www.wheelweights.net/


here the 14 x 6 minilite magnesium is listed as 4.5 kgs, 15 inch is 4.7kg. Guess the 13 could be around 4kg

geeeman

Original Poster:

1,310 posts

255 months

Wednesday 1st May 2013
quotequote all
ok small update...

pretty disappointed with the engine work done by Scholar in suffolk
i paid them to do a race engine build for the G4.

I never received a dyno sheet, and i never received a list of the work done. also had many issues with oil surge, until they correctly baffled the sump.
after months of asking i finally received a vague spec

we were told they acheived 133+ BHP from it

However, looking inside the engine, and after having the car on the RR, its closer to 110 bhp, and has mostly standard internals.

engine has now gone over to Joe at Throbnozzle racing...


suffolk009

5,366 posts

165 months

Wednesday 1st May 2013
quotequote all
So was the engine not built to agreed spec?

What's the normal owner's tolerance on rolling roads? They must be all vary a little, depending on whether the RR operator has just built the engine, or wants the work to rebuild it. Bit like the penny on the underside of the grocer's scales.

If it's a 1500 pre-X, then a real 130 would have been pretty optimistic, surely.

geeeman

Original Poster:

1,310 posts

255 months

Wednesday 1st May 2013
quotequote all
yep they didnt stick to the spec we asked for

RRs all vary, but we know 130 BHP is very achievable from Pre-CF, but u need steel components, a suitable cam, and good cylinder head work..


Carnage

886 posts

232 months

Thursday 16th May 2013
quotequote all
Coming to Silverstone, Shaddy?

geeeman

Original Poster:

1,310 posts

255 months

Thursday 16th May 2013
quotequote all
hi Paul, this was to be the first race.. however we have a small leak from the rear axle, and the engine is still with throbnozzle. it should be back in the car next week, then testing in june. So looks like first outing may be July at brands
But i will be at silverstone on saturday, supporting the ginettas racing. There were 3 G4s entered for saturdays race, but Justin murphy is no longer able to make it. Will be nice to see the newly restored G4 of Dave Bowland making its debut in HRS

Edited by geeeman on Thursday 16th May 14:24

Carnage

886 posts

232 months

Thursday 16th May 2013
quotequote all
Marvellous! Come say hi - I think we have a garage but its first come first served so not sure which one.

geeeman

Original Poster:

1,310 posts

255 months

Monday 24th June 2013
quotequote all
Joe at throbnozzle has done a great job rebuilding the engine to correct spec

testing booked for 9th July, race 13th July at Brands HSCC superprix smile

Carnage

886 posts

232 months

Tuesday 25th June 2013
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I will come and watch!

Carnage

886 posts

232 months

Tuesday 25th June 2013
quotequote all
I will come and watch!

h4887

278 posts

240 months

Sunday 14th July 2013
quotequote all
Well done at Brands, Shadi! clap

Geoff


Edited by h4887 on Sunday 14th July 20:33

geeeman

Original Poster:

1,310 posts

255 months

Monday 15th July 2013
quotequote all
thank you Geoff

we had very limited testing before the race due to some probs with oil surge , sump was rebaffled on friday and hoping all would be ok for the race. It was the full GP circuit so quite alot to learn in one day

qualified 9th behind the G4 of Patrick ward-Booth, finished 8th out of 32, behind mostly elans and lotus 7s. Patrick came 5th




Edited by geeeman on Monday 15th July 15:18

lmasarati

91 posts

164 months

Tuesday 16th July 2013
quotequote all
Oh, very good Shadi.

ixxifan

10 posts

202 months

Tuesday 16th July 2013
quotequote all
Well done Shadi, great result on a daunting circuit for your first race.

What did Joe get out of the engine in the end?