What spec was the Caterham Supersport R kit?

What spec was the Caterham Supersport R kit?

Author
Discussion

BertBert

19,039 posts

211 months

Sunday 23rd July 2017
quotequote all
If it were me, I'd stick with the 1600 but on the throttle bodies.

I prefer it to the 1800.

Bert

Green George

Original Poster:

316 posts

251 months

Sunday 23rd July 2017
quotequote all
I think you are probably right. My Superlight is very original and has a really good history https://caterhamsuperlight106.wordpress.com in case you are interested.
Including purchase I am in the mid to high 20's and really am not sure of the wisdom of spending more and take away from what is an original Superlight.
I am starting to think it may be more sensible to buy a SLR or R400K or D which will intrinsciably be worth more. It really is a double edged sword as I know how good my Superlight is and anything new is a gamble.
I have seen a nice (although apparently un-numbered) SLR for sale at Chapman Cars along with a very nice R400D. I need to sell my car first but they are both the kind of car I would be looking at. I have a very comprehensive stock of spares including a brand new wet sump, apollo tank and fittings, 2 spares sets of wheels and tyres, windscreen and aeroscreen, the QED / JENVEY DTH throttle bodies and air box. Not sure whether to sell the car separately or as a package if I go down the new 7 route.
Hmm I need to think things through.......

BertBert

19,039 posts

211 months

Monday 24th July 2017
quotequote all
Yes very challenging. The 1600k superlight is a wonderful 7 made even better in my view by getting 160bhp on the 1600 with some porting and tbs.

It's just a question of whether it's what you want or not. I don't think it would ruin the originality of your car, but that's just my view.

If it was unpainted with no screen and bare faded carbon, then maybe not!

Hope that doesn't sound like an insult!

Bert

Green George

Original Poster:

316 posts

251 months

Monday 24th July 2017
quotequote all
It is a real dilemma, which I am very fortunate to have!

I have the throttle bodies and airbox but I am now starting to think it may well be time to upgrade to a 7 with the right spec already i.e. a SLR or R400 *now the subject of a separate thread.

However, there is no getting away from the fact that accepted wisdom is that a 160 to 180 bhp 7 is a sweet spot.

My concern is if I fit the throttle bodies and air box, do I stop there or have forged piston fitted and maybe a dry sump for safety sake? That would be expensive and would require running in over 1500 or so miles....

Edited by Green George on Monday 24th July 21:11

BertBert

19,039 posts

211 months

Monday 24th July 2017
quotequote all
I could help out with the running in if you asked nicely biggrin

BertBert

19,039 posts

211 months

Monday 24th July 2017
quotequote all
I could help out with the running in if you asked nicely biggrin

Green George

Original Poster:

316 posts

251 months

Tuesday 25th July 2017
quotequote all
BertBert said:
I could help out with the running in if you asked nicely biggrin
Thanks! I would enjoy the process but at the moment that would take me a year to do!

analog_me

287 posts

129 months

Tuesday 25th July 2017
quotequote all
Green George said:
It is a real dilemma, which I am very fortunate to have!

I have the throttle bodies and airbox but I am now starting to think it may well be time to upgrade to a 7 with the right spec already i.e. a SLR or R400 *now the subject of a separate thread.

However, there is no getting away from the fact that accepted wisdom is that a 160 to 180 bhp 7 is a sweet spot.

My concern is if I fit the throttle bodies and air box, do I stop there or have forged piston fitted and maybe a dry sump for safety sake? That would be expensive and would require running in over 1500 or so miles....

Edited by Green George on Monday 24th July 21:11

analog_me

287 posts

129 months

Tuesday 25th July 2017
quotequote all
analog_me said:
You will not need to chanve the pistons as long as rpm stay limited to 7200.
The 1.6 has different stroke than the 1.8 and make it much more strong

Green George

Original Poster:

316 posts

251 months

Tuesday 25th July 2017
quotequote all
I have also heard that, but the Supersport rev limit was raised to 7600 by Caterham. Having spoken with Dave Andrews I reduced my rev limit to just under 7200 by using an aftermarket rev limiter. I wondered whether by doing that I am not getting the best from the Supersport cams? Presumably, that was why Caterham raised the rev limit.

BertBert

19,039 posts

211 months

Tuesday 25th July 2017
quotequote all
Interestingly the DVA Power kits don't seem to contain any piston upgrades. They look to be headwork, valves, cams and ECUs.

In fact the K04 which says 160bhp on the 1600 is only cams, Jenveys and an emerald.

So perhaps you could usefully upgrade the power without a full engine build and the running in.

Bert

Green George

Original Poster:

316 posts

251 months

Tuesday 25th July 2017
quotequote all
I just had an e-mail chat with Dave Andrews and his opinion is 170bhp / 7200 rpm is on the cusp of piston unreliability; so forged pistons would be prudent.

BertBert

19,039 posts

211 months

Tuesday 25th July 2017
quotequote all
But does that mean that the equivalent of the k04 kit (160bhp) at 7200 would be ok?

Green George said:
I just had an e-mail chat with Dave Andrews and his opinion is 170bhp / 7200 rpm is on the cusp of piston unreliability; so forged pistons would be prudent.

Green George

Original Poster:

316 posts

251 months

Tuesday 25th July 2017
quotequote all
I will ask the question.

Green George

Original Poster:

316 posts

251 months

Tuesday 25th July 2017
quotequote all
What an obliging and helpful man Dave is. To answer your question, the K04 kit should be safe at 7200 but it may not make 160BHP on a 1600, it depends on how good the head is from the factory.

BertBert

19,039 posts

211 months

Tuesday 25th July 2017
quotequote all
He most certainly is!

So what do you think you'll do?

bert

Green George

Original Poster:

316 posts

251 months

Thursday 27th July 2017
quotequote all
Well, the short answer is I do not know.

I love the Superlight but want more go. I have already sent too much on it and to tune it would take away from the original ethos. But they are cracking cars so I am already onto a winner!

A really good early SLR (tufrided crank model) would tick all the boxes. But must have been loved and have a full and detailed history file around 20,000 miles.
Ideally with the original (dull) carbon fibre wings all round like my Superlight and if I was very lucky orange or bright green. Oh, and definitely with a dry sump.
I would like a standard one other than having been fettled by DVA a la his K11 - Upgrade/drivability kit for the VHPD engine. This apparently greatly improves idle and progression together with much improved mid range torque, and lifts the engine to a proper 190BHP.

R400K as above.

R400D on 13" wheels, dry sump, 6 speed etc etc.

Edited by Green George on Thursday 27th July 16:23

analog_me

287 posts

129 months

Thursday 27th July 2017
quotequote all
Green George said:
I have also heard that, but the Supersport rev limit was raised to 7600 by Caterham. Having spoken with Dave Andrews I reduced my rev limit to just under 7200 by using an aftermarket rev limiter. I wondered whether by doing that I am not getting the best from the Supersport cams? Presumably, that was why Caterham raised the rev limit.
I am happy to hear David is confirming my calculation


BertBert

19,039 posts

211 months

Thursday 27th July 2017
quotequote all
Interestingly, I preferred my 1600SS to my SLR!
Bert
Green George said:
Well, the short answer is I do not know.

I love the Superlight but want more go. I have already sent too much on it and to tune it would take away from the original ethos. But they are cracking cars so I am already onto a winner!

A really good early SLR (tufrided crank model) would tick all the boxes. But must have been loved and have a full and detailed history file around 20,000 miles.
Ideally with the original (dull) carbon fibre wings all round like my Superlight and if I was very lucky orange or bright green. Oh, and definitely with a dry sump.
I would like a standard one other than having been fettled by DVA a la his K11 - Upgrade/drivability kit for the VHPD engine. This apparently greatly improves idle and progression together with much improved mid range torque, and lifts the engine to a proper 190BHP.

R400K as above.

R400D on 13" wheels, dry sump, 6 speed etc etc.

Edited by Green George on Thursday 27th July 16:23

Green George

Original Poster:

316 posts

251 months

Thursday 27th July 2017
quotequote all
BertBert said:
You are not helping! Anyway this is not a decision to rush.

May I ask why you preferred the Superlight to the SLR?

What spec was your Superlight?

Edited by Green George on Thursday 27th July 22:43