CS on the hill at Prescott yesterday

CS on the hill at Prescott yesterday

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Trev450

Original Poster:

6,314 posts

171 months

Monday 27th April 2015
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Pretty much as the title. Just wondering if it is anyone on here.

PorscheGT4

21,146 posts

264 months

Monday 27th April 2015
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what is a CS these days

Carrera S
Cayman S
Club Sport
Challenge Stradale

?

Trev450

Original Poster:

6,314 posts

171 months

Monday 27th April 2015
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Cayman S. Keep up wink

westwood35

123 posts

182 months

Monday 27th April 2015
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I was competing at Prescott this weekend in my 3.9 Cayman S.

Trev450

Original Poster:

6,314 posts

171 months

Monday 27th April 2015
quotequote all
I'm assuming that was the blue one then. I was hoping to catch you for a chat but you weren't around in the paddock at the time I was admiring your car.


westwood35

123 posts

182 months

Monday 27th April 2015
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Yeah, sorry I didn't see you. I had a 5 year old to try and entertain between runs!!! I will be doing most of the Midland Championship rounds and all the Shelsleys. Yesterday was the first time out with the big engine, and it seemed to go well. Going to run it on slicks at shelsley next weekend, if the weather allows.

Trev450

Original Poster:

6,314 posts

171 months

Monday 27th April 2015
quotequote all
Ah yes, the joys of parenthood! smile

Hopefully I shall catch you at another event in the future.

PR36

341 posts

115 months

Monday 27th April 2015
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Seen the bikes go up the hill at prescott but seemed very narrow for a car! Would be interested to know what its like peddling a cayman up there and impressions of the 3.9 engine, i assume this is an svp motor?

westwood35

123 posts

182 months

Monday 27th April 2015
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Its not that narrow when your on the hill, except in a few places!! Engine has been developed by SVP and my company Westwood Cylinder Liners. We designed the crankcase conversion, they do the engine builds and the tuning side.

There has been a significant increase in power, although we have not had the car on a dyno yet. With all the suspension upgrades and diff, the car handles very well for hillclimbs. Further improvement will come when we fit the super soft hillclimb slicks.

PR36

341 posts

115 months

Monday 27th April 2015
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Would be great if you could give some more detail about the build, I'm sure many others would be interested, with pics of course!

westwood35

123 posts

182 months

Tuesday 28th April 2015
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The car has been completely stripped inside, new KW suspension, Lightweight flywheel, Quaife Diff, Full Cage, Cup Cables, Chris Tullett Exhaust, Motordrive Lightweight seats. We have lightweight boot and doors with plexiglass to fit in the next few weeks.

The engine has been converted to 3.9 with Westwood Cylinder Liners, Omega Pistons, Porsche Crankshaft and Carrillo Rods.







Trev450

Original Poster:

6,314 posts

171 months

Tuesday 28th April 2015
quotequote all
Interesting information - thanks for posting. You mention the crank has been changed, is that because the 3.9 conversion is a bore and stroke change or just because you are using the car for competition?

I presume the 3.9 litre conversion would be ok for primarily road use as well.

westwood35

123 posts

182 months

Tuesday 28th April 2015
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We needed to bore and stroke to get to 3.9. Car is fine for the road, with plenty of power!! Bit hard with the suspension set up we have at the moment, but that is because it is set for the hills.

evojam

560 posts

159 months

Tuesday 28th April 2015
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Very nice indeed! bet that's alot of fun too drive on trackdriving I'm seeing a nice carbon wing on there for a bit more downforce at the rear wink

Edited by evojam on Tuesday 28th April 11:44

PR36

341 posts

115 months

Tuesday 28th April 2015
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Awesome thanks for posting. Could you give a little detail about the lwfw and diff you are running and how it benefits the car? Very interested to know more on those for my cayman s.

westwood35

123 posts

182 months

Tuesday 28th April 2015
quotequote all
evojam said:
Very nice indeed! bet that's alot of fun too drive on trackdriving I'm seeing a nice carbon wing on there for a bit more downforce at the rear wink

Edited by evojam on Tuesday 28th April 11:44
For the hillclimbs we do, downforce is not really an issue. If we were to use it on a track then yes i could see the benefit.

westwood35

123 posts

182 months

Tuesday 28th April 2015
quotequote all
PR36 said:
Awesome thanks for posting. Could you give a little detail about the lwfw and diff you are running and how it benefits the car? Very interested to know more on those for my cayman s.
When i compete i switch the PSM off and then rely on the diff!! It is very good indeed and on twisty hills like Prescott or Loton it works a treat. I still have to be convinced on the Lightweight Flywheel!! It helps the engine rev a lot more, and once you are moving it is great. But for quick starts it spins up too quickly, and getting fast starts is difficult. Although that may change when we go to the Slicks.

westwood35

123 posts

182 months

Thursday 30th April 2015
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¡A couple more photos from the Prescott weekend.



Trev450

Original Poster:

6,314 posts

171 months

Saturday 2nd May 2015
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Nice photos - thanks for posting.

I'm not an engineer hence this question: I notice from your website that the ductile liners you supply have no coating on them. Is this something that needs to be done prior to fitting?

As an aside, if you want to go the whole-hog on your cayman weight reduction program, there's plenty to choose from here:

http://www.gettydesign.com/index.php


westwood35

123 posts

182 months

Sunday 3rd May 2015
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Just got back from Shelsley and a 2nd in class!!!! Thank you for the question. We do not use any coatings on our liners, either Ductile or standard cast iron. Coatings are generally only used on Steel or Aluminium liners.