Snett- mobile road block update...

Snett- mobile road block update...

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BertBert

Original Poster:

19,539 posts

217 months

Tuesday 13th April 2010
quotequote all
...well it was a lovely day today. Apologies to anyone on here who I might have inconwenienced with a couple of stops today!

Anyway in short, it was a great day. Chugga-chugga is a thing of the past thanks to Lanan. Today was the day of the failing fuel pump. We had two give up the ghost today. However despite this I got in some good laps in the morning to get settled and we tuned a few geo settings.

After lunch I got about 10 or so quicker laps strung together before pump failure #2 set in. End result was a 1:15.4 which I am quite pleased about. Also it was just awesome fun. The clubsport is such a great car, goes like a very fast thing and holds on in the corners like crazy.

So sorry to all you experienced racer-types for the newbie-like excitement, but after a couple of dismal test days, today was great despite missing one session completely and having to be recovered in each of the other three!

Bert
PS just realised I haven't got much time to learn Oulton...never driven there before!

fergus

6,430 posts

281 months

Wednesday 14th April 2010
quotequote all
BertBert said:
...well it was a lovely day today. Apologies to anyone on here who I might have inconwenienced with a couple of stops today!

Anyway in short, it was a great day. Chugga-chugga is a thing of the past thanks to Lanan. Today was the day of the failing fuel pump. We had two give up the ghost today. However despite this I got in some good laps in the morning to get settled and we tuned a few geo settings.

After lunch I got about 10 or so quicker laps strung together before pump failure #2 set in. End result was a 1:15.4 which I am quite pleased about. Also it was just awesome fun. The clubsport is such a great car, goes like a very fast thing and holds on in the corners like crazy.

So sorry to all you experienced racer-types for the newbie-like excitement, but after a couple of dismal test days, today was great despite missing one session completely and having to be recovered in each of the other three!

Bert
PS just realised I haven't got much time to learn Oulton...never driven there before!
Graham,

Do you run a twin pump setup? This may alleviate your problems if you are finding the pumps are problematical. You could either run both together and have permanent
redundancy built into the fuel delivery system, or run a dash switched system, or to be very trick, get your ECU to switch from pump 1 to pump 2 when the fuel pressure drops below a preset level?

1.15.... With slicks and downforce surely you can get more out of it than that. I can do a high 1.12s on my bike!

splitpin

2,740 posts

204 months

Wednesday 14th April 2010
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Great to hear (other than the pump/s).

IMHO that's a very respectable time indeed for someone in a Clubbie getting their eye (and that leg) back in.

Comparison with bike times is at best misleading, totally depends on the track. Snett's two long straights and relatively few number of corners really favour a bike's way way faster pick-up between 100 and 150mph and beyond, that even a Radical's enormously quicker pace through Riches etc cannot make good. As I say, depends on the track: Recollect one of Jon W's qualifying times (pole) at Dony in the tuned PR6 was quicker than Rossi's Moto GP equivalent a couple of weeks prior or after. As far as two wheels are concerned, they don't come any consumately quicker than Vale on his Yam.


nick997

609 posts

214 months

Wednesday 14th April 2010
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1.15 sounds pretty respectable, think the fastest CS got down to a 1.13 when I raced in Bikesports last September. Factor in your lack of time in the car for the last couple of years and you're there... Good luck in your first race meeting in however many years it has been.

fergus

6,430 posts

281 months

Wednesday 14th April 2010
quotequote all
Apologies if I've inadvertantly upset anyone here. I didn't know what the benchmark time for a non (latest) aero Rad was! bow

BertBert

Original Poster:

19,539 posts

217 months

Wednesday 14th April 2010
quotequote all
fergus said:
Graham,

Do you run a twin pump setup? This may alleviate your problems if you are finding the pumps are problematical. You could either run both together and have permanent
redundancy built into the fuel delivery system, or run a dash switched system, or to be very trick, get your ECU to switch from pump 1 to pump 2 when the fuel pressure drops below a preset level?
We were discussing a twin pump setup to give redundancy yesterday, so may go that route. Having said that, the prev pump was fine for the last few years. The "spare" was unfortunately of unknown lineage. So I do have hopes of a new pump doing the job ok.

I don't think you have grasped the simplicity of the Clubby Fergus- it's pretty basic. It doesn't really have an ECU, just an ign module. So there's not going to be any fuel pressure monitoring going on!

fergus said:
1.15.... With slicks and downforce surely you can get more out of it than that. I can do a high 1.12s on my bike!
Good question. Again the Clubsport is not exactly highly sophisticated in the downforce dept. The aero consists of a splitter at the front and gurney flap at the back.

The quali times (according to TSL) for last year's snett race make interesting reading.

GK with 1:05.546 in a PR6 to the slowest Clubsport at 1:18.24! It was similar weather on sept 26th.

The fastest Clubsport time was Mark Boot at 1:14.863. The fastest race times were similar to qualifying (although the slower Clubbies got a bit quicker).

Bert

fergus

6,430 posts

281 months

Thursday 15th April 2010
quotequote all
BertBert said:
fergus said:
1.15.... With slicks and downforce surely you can get more out of it than that. I can do a high 1.12s on my bike!
Good question. Again the Clubsport is not exactly highly sophisticated in the downforce dept. The aero consists of a splitter at the front and gurney flap at the back.

The quali times (according to TSL) for last year's snett race make interesting reading.

GK with 1:05.546 in a PR6 to the slowest Clubsport at 1:18.24! It was similar weather on sept 26th.

The fastest Clubsport time was Mark Boot at 1:14.863. The fastest race times were similar to qualifying (although the slower Clubbies got a bit quicker).

Bert
Sounds like you were "on it" to an extent then! thumbup Don't under estimate the aero affects of a guerney flap. Their circa 15mm contribute a lot!

mabbott

174 posts

183 months

Thursday 15th April 2010
quotequote all
There was a really warm test session at Snett circa July 2007 just before the Bikesports meeting that year (for which it then rained in qualifying) where there was a huge amount of rubber down on track and I distinctly recall the CS times dropping to 1m13/1m12 which was loony. So much so I used as 17t front sprocket in that meeting as an experiment. Everyone was putting in berserk times but it was generally accepted this was a 'one-off' and it stood in my mind for that reason.

splitpin

2,740 posts

204 months

Thursday 15th April 2010
quotequote all
According to Radical's fastest laps >

Snetterton 1:11.595 Matt Doman 18/05/2003

That's certainly 'pedalling it' in a Clubbie.

BertBert

Original Poster:

19,539 posts

217 months

Sunday 9th May 2010
quotequote all
fergus said:
Sounds like you were "on it" to an extent then! thumbup Don't under estimate the aero affects of a guerney flap. Their circa 15mm contribute a lot!
So although I can't possibly agree with Fergus as a matter of principle, looks like he was right that the Clubsports could go a bit quicker than I did.

Bert

BertBert

Original Poster:

19,539 posts

217 months

Monday 10th May 2010
quotequote all
Really Bert, why do you say that?

BertBert

Original Poster:

19,539 posts

217 months

Monday 10th May 2010
quotequote all
Looks like the fastest lap in the last race was quite a bit quicker Bert.
http://www.tsl-timing.com/barc/2010/101822.pdf

fergus

6,430 posts

281 months

Monday 10th May 2010
quotequote all
BertBert said:
fergus said:
Sounds like you were "on it" to an extent then! thumbup Don't under estimate the aero affects of a guerney flap. Their circa 15mm contribute a lot!
So although I can't possibly agree with Fergus as a matter of principle, looks like he was right that the Clubsports could go a bit quicker than I did.

Bert
hippybeer We havea healthy debate, that's all!!!!

I'm chasing your garage profile! I'm aiming for a 996 RS / 997 GT3.1 or an SR3 RS next year!!!

BertBert

Original Poster:

19,539 posts

217 months

Monday 10th May 2010
quotequote all
Good call on the car front Fergus! Re Snett some bloke called Ridgeway seemed to get a good lap time in the last race!

Bert