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elderly gentleman requires more ooomph


Mr G

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Hello young men

 

At my time of life, as nature runs it's course and things slow down a little, I wondered whether I should attempt to have one last go to recapture my youth and regain my former glory (i think that I had a former glory once, it's just that I can't remember!!).

 

I require more power.

 

Dismissing viagra as an option, could anyone advise me which route to take to attain as much power as is possible and the likely costs involved. 210BHP would be the minimum increase as anything less would not be worth the trouble.

 

I have a K series VVC that has been skimmed with a slightly larger tb. Dyno results show 171bhp at 7000rpm and wonderfully improved torque that starts even lower down the range but, I suppose power is power!!

 

I am willing to do the work myself but have no experience at engine improvements. I just built the car.

 

Any suggestions kind people

 

Mr G

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Hmm, well, at 62, Gary Glitter doesn't seem to be having trouble with his oomph, in fact I would venture to suggest he has too much of it, I wonder if he'll be able to let you have some soon, as he won't bee able to use it where he going 😳

 

Paul J. Hard work never killed anyone ........ but why take the chance!

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I'd be really careful, you are obviously used to a smooth power delivery that the VVC gives. In order to achieve 210BHP you'd be pushing the limits of the VVC mechanisms (they fall apart if revved over about 7300rpm). I used to have a VVC with about 160BHP and changed it all for an R400 engine thinking it was an upgrade. Okay I do now have a quoted 214BHP but it doesn't drive anywhere near as nicely as the VVC in everyday use.

 

If you intend only to do track days/racing where you keep it singing in the 5000+rpm zone then a ported head with big cams and throttle bodies (with new pistons an absolute must) with def go you over the 200BHP mark but at the expense of low end grunt, idle quality, cold start, fuel economy and emmisions (MOTs are touch and go now).

 

If you drive on the road mostly then try optimising for torque in the midrange. Okay you may not get over 185BHP but you'll keep most of the nice traits you are used to.

 

I'd try fitting an Emerald ECU with throttle bodies (longest trumpets you can find) and a re ground exhaust cam. You could port the head too. A long 4-2-1 exhaust manifold will also help. DVA is the man to speak to

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Whilst not a K, my bdr has gone from 150 to 220. The car is now a rael handful in traffic and I begin to loose faith sometimes. Comp clutch doesn't help.

 

However 30 seconds on a clear road like the Snake Pass or Cat & Fiddle soon make me remeber what it's all about.

 

There are 2 ways to increased performance. One is more power and the other is less weight.

 

Norman Verona, 1989 BDR 220bhp, Reg: B16BDR, Mem No 2166, the full story here

You and your seven to The French Blatting Company Limited

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What have the owners of VVC K series engines that maintain the VVC mechanism and run on Caterham roller barrels/jenveys with a ported head and hotter exhaust cams and an emerald have to say?

 

Oily - ISTR you worked on one for Sacha? Having px'd in a car like this, was very impressed. Maintaining the torque characteristics and achieving higher "bhp" without stressing the engine so much by upping the rev limit beyond 7200 rpm seems a ver sensible way to do things.

 

I think i know of a 7 that has this same setup and he quotes nice high figures too.

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I have seen 183BHP on a plenum with a VVC and I know that higher figures can be had with TBs, *but* you will never acheive 210BHP at 7200, this would suggest a peak torque figure of around 170lb/ft which would be nigh on impossible given the limited lift and valve acceleration of the VVC cams and the limited duration of the exhaust cam. I personally would be worried about stretching the VVC mechs at high RPM after conversations with certain test engineers within Rover.

 

Solid cams and forged pistons look to be the way to go for that level of power.

 

Oily

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Oily - as ever - cheers! So alternatively K06 minus the blanking kit & tb's

 

Am running the Trophy engine - so the 52mm TB requirement is removed (i.e. got one already!)

I assume that was with nice big mapping session with emerald as well.

 

 

 

Edited by - Dave21P on 21 Nov 2005 13:04:50

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Err no.. the K06 is a bolt on kit that doesn't include head work, it replaces the VVC mecahs with solid cams and blanking kit, includes TBs, an ECU and optional verniers and airbox.

 

The K06A retains the VVC and all other bits, from the outside the engine is indistinguishable from standard.

 

Oily

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Gentlemen

 

Thank you very much for your suggestions.

 

A question for Oily: Mr Bob Corb metioned that it would be an idea to keep the vvc mech's. You say it's possible to increase the power to beyond 185 with your K06A kit and some re mapping.

 

What sort of power am I looking at and how much would it cost.

 

Kind regards

 

Mr G

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Whether or not you keep the VVC mechs has to be down to your preferences and the best way to assess the alternative is to ask someone who has a solid cammed VVC headed engine for a ride in one so that you can make your own mind up about the tractability. If you decide you want to keep the VVC mechs then the K06a kit plus fitting and an emerald ECU with suitable map should do the trick. The expected output would be a real 180-185BHP, it would be wise to put your car on Emeralds rollers first to give a comparative figure so that the actual increase can be measured.

 

I would rather not advertise on the BBS so it might be better if you dropped me a line and I will respond directly, or you could have a look on my website here. If you look at kit K06A and the emerald ECU it will give you some idea.

 

Oily

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As an aside - Oily, I understand the objections of certain people to general advertising here on the website by knowledgeable people, but to a lot of people your information is invaluable and accepting information on the services that you sell is well worth it in return for all of the advice. (for instance as it is with Hugh et al regarding their driving tips).

 

Sorry to open that can of worms, but club website would be a poorer place if you DIDN'T advertise your services on here.

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Dave, you're quite right, however I think that Oily is right in saying "here's some free advice, however if you wish to know what I can do for you as a paying customer then please let's do it elsewhere." I know we might all like to hear what he can offer but as you know some people can be sensitive about what is felt to be commercial advertising. ☹️
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Eeek.. I am aware as ever that I am an honorary member of the L7 club and am grateful for the generosity of the membership in making this happen and allowing me to continue to contribute to this BBS. In view of this I am nervous about being seen to be pusing my business interests through this medium.

 

I am happy to answer direct questions though. Anyone who would like copies of responses to the orignator of this thread that I send by email is very welcome provided that he is comfortable with it.

 

Oily

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