Cadwell Park - Hairpin

Cadwell Park - Hairpin

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Discussion

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
Evening all,

I'm looking to cut my lap time at Cadwell by taking some kerb at Hairpin. Is this possible? I want to carry more speed through to barn but it looks to be a fair chunk of concrete.

I have some fairly strong forged BBS wheels and Intrax suspension, which is supposedly tough.

Dave.

7,516 posts

260 months

Thursday 29th April 2021
quotequote all

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
Dave. said:
Indeed, but neither have any answer to my question.

I'm reasonably quick around Cadwell I'm just looking to see if I can gain anything on this one particular corner.

Steve H

5,780 posts

202 months

Thursday 29th April 2021
quotequote all
You will find very little time to gain at the slowest corner on any circuit, that applies double at Cadwell where the exit of the turn is such a short straight.

You may get some at Barn if you can improve your exit speeds but the big benefits are on the fast stuff, Coppice, Charlies, Gooseneck etc.

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
Steve H said:
You will find very little time to gain at the slowest corner on any circuit, that applies double at Cadwell where the exit of the turn is such a short straight.

You may get some at Barn if you can improve your exit speeds but the big benefits are on the fast stuff, Coppice, Charlies, Gooseneck etc.
I totally agree. Coppice and Charlies especially.

My issue is I'm chasing the 0.2 seconds my brother in law has me beat by and I'm flat out for pretty much the rest of the lap. In all the faster corners I'm near the limit of adhesion.

If I can take an extra couple of MPH through hairpin and barn, I reckon that'll make the difference.

Dave.

7,516 posts

260 months

Thursday 29th April 2021
quotequote all
Trackdayer said:
Dave. said:
Indeed, but neither have any answer to my question.

I'm reasonably quick around Cadwell I'm just looking to see if I can gain anything on this one particular corner.
Neither of those guides shoes them taking the curb there.

What size/profile tyre are you running? If you got some meaty rubber you might get away with it, it does look a fair old lump though.

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
Dave. said:
Neither of those guides shoes them taking the curb there.

What size/profile tyre are you running? If you got some meaty rubber you might get away with it, it does look a fair old lump though.
265/35/18 front 295/40/18 rear if I remember rightly (or thereabouts)

I'm tempted to sneak in early one morning and take a walk round it and kick the kerbs laugh

Dave.

7,516 posts

260 months

Thursday 29th April 2021
quotequote all
hehe

I wouldnt be doing it on those...

Have you got any data/telemetry?

Must be another 4 places where you can gain 0.05secs rather than 1x0.2....

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
Dave. said:
hehe

I wouldnt be doing it on those...

Have you got any data/telemetry?

Must be another 4 places where you can gain 0.05secs rather than 1x0.2....
Only in-car footage. I'll compare my best lap to his and see where he's quicker.

sociopath

3,433 posts

73 months

Thursday 29th April 2021
quotequote all
Trackdayer said:
Steve H said:
You will find very little time to gain at the slowest corner on any circuit, that applies double at Cadwell where the exit of the turn is such a short straight.

You may get some at Barn if you can improve your exit speeds but the big benefits are on the fast stuff, Coppice, Charlies, Gooseneck etc.
I totally agree. Coppice and Charlies especially.

My issue is I'm chasing the 0.2 seconds my brother in law has me beat by and I'm flat out for pretty much the rest of the lap. In all the faster corners I'm near the limit of adhesion.

If I can take an extra couple of MPH through hairpin and barn, I reckon that'll make the difference.
Unless you have the class lap record I reckon you won't be

Steve H

5,780 posts

202 months

Thursday 29th April 2021
quotequote all
Trackdayer said:
Dave. said:
hehe

I wouldnt be doing it on those...

Have you got any data/telemetry?

Must be another 4 places where you can gain 0.05secs rather than 1x0.2....
Only in-car footage. I'll compare my best lap to his and see where he's quicker.
Ignoring for a moment that this is a trackday forum I’ll just say that chasing 2 tenths without proper data is a pointless exercise.

E-bmw

9,976 posts

159 months

Thursday 29th April 2021
quotequote all
Steve H said:
Ignoring for a moment that this is a trackday forum I’ll just say that chasing 2 tenths without proper data is a pointless exercise.
^^^^Wot 'e said.

Try following & learning from him.

As was eluded to earlier, it is much easier to make up time at Charlies, Coppice, the Gooseneck (personal favourite) and even Hall bends.

Trackdayer

Original Poster:

1,090 posts

48 months

Thursday 29th April 2021
quotequote all
I look at it as improving my weakest 2 corners will yield some additional time. I don't need datalogging to tell me I can go faster there.

nickfrog

21,949 posts

224 months

Thursday 29th April 2021
quotequote all
This should be in the motorsport section surely as hopefully not happening on a track day.

bigothunter

12,199 posts

67 months

Friday 30th April 2021
quotequote all
Steve H said:
You will find very little time to gain at the slowest corner on any circuit, that applies double at Cadwell where the exit of the turn is such a short straight.

You may get some at Barn if you can improve your exit speeds but the big benefits are on the fast stuff, Coppice, Charlies, Gooseneck etc.
Excellent advice and a focal point for other race circuits as well.

Drumroll

3,984 posts

127 months

Friday 30th April 2021
quotequote all
Trackdayer said:
I look at it as improving my weakest 2 corners will yield some additional time. I don't need datalogging to tell me I can go faster there.
Are you seriously telling us you know that you are 0.2 seconds slower at those corners without a data logger?

bigothunter

12,199 posts

67 months

Friday 30th April 2021
quotequote all
Dave. said:
hehe

I wouldnt be doing it on those...

Have you got any data/telemetry?

Must be another 4 places where you can gain 0.05secs rather than 1x0.2....
Gaining 0.05 secs on a consistent basis is dubious, never mind measuring it hehe


Edited by bigothunter on Friday 30th April 15:30

Trackdayer

Original Poster:

1,090 posts

48 months

Friday 30th April 2021
quotequote all
Drumroll said:
Are you seriously telling us you know that you are 0.2 seconds slower at those corners without a data logger?
No.

Steve H

5,780 posts

202 months

Friday 30th April 2021
quotequote all
Trackdayer said:
I look at it as improving my weakest 2 corners will yield some additional time. I don't need datalogging to tell me I can go faster there.
Trackdayer said:
Drumroll said:
Are you seriously telling us you know that you are 0.2 seconds slower at those corners without a data logger?
No.
I’m not sure that makes sense.

OP, you are asking for advice then not listening to it when it comes.

To be clear, When pushing for a fast lap the best thing you can do with Hall Bends and Hairpin is survive them. I’ve instructed there for TDO’s, I’ve instructed there for the circuit, I’ve won races there, please believe me when I say the proper gains are elsewhere.

Trackdayer

Original Poster:

1,090 posts

48 months

Friday 30th April 2021
quotequote all
Steve H said:
I’m not sure that makes sense.

OP, you are asking for advice then not listening to it when it comes.

To be clear, When pushing for a fast lap the best thing you can do with Hall Bends and Hairpin is survive them. I’ve instructed there for TDO’s, I’ve instructed there for the circuit, I’ve won races there, please believe me when I say the proper gains are elsewhere.
I think you're missing the question slightly.

I'm asking if it's possible to take more speed through Hairpin by taking some kerb. Not whether I've datalogged or not, not how quick I am elsewhere on the lap.

Many thanks