dino ferrana Posted October 15, 2003 Share Posted October 15, 2003 You sure? Link to comment Share on other sites More sharing options...
Bill Shurvinton Posted October 15, 2003 Author Share Posted October 15, 2003 No. I'm not. Quick surf...Ahh. well. Its ummmm. Quite heavy. Fully dressed 170kg, so lighter than a YB/pinto still, but fair lardy. No idea how much a suitable flywheel (stock will be 15kg ish) and throbbles saves. Apparantly in race trim pops out some 385BHP though. Perfect engine for a touring type car. Might drop one in my RX7 Link to comment Share on other sites More sharing options...
Chris G Posted October 15, 2003 Share Posted October 15, 2003 Dino, I have a suspicion that removing the screen from my car and the lard heavy interior it would be damn close to the ring record. If you've seen the video of my car at the ring that's recording a pretty good time, despite being about 30BHP down,having a 20st passenger and a driver that wasn't completely familiar with the circuit. Link to comment Share on other sites More sharing options...
Luke Beaumont Posted October 15, 2003 Share Posted October 15, 2003 Dunno if it's just me, but it seems that V engines have a significant factor against them weight wise, and that's the need to double up on the exhaust componentry. Are there no inline engines that are of bigger displacement, but no so long that they won't fit? Volvo 5 cyl maybe? Link to comment Share on other sites More sharing options...
dino ferrana Posted October 15, 2003 Share Posted October 15, 2003 True but when the engine only weighs 90KG in the first place it is less important. If you could get some lovely titanium exhausts made (Ammo perhaps) then it wouldn't be quite such a penalty. Link to comment Share on other sites More sharing options...
Sheds Moderator Posted October 15, 2003 Share Posted October 15, 2003 cng, what was your upgrade that gave you more power at 80p per BHP? Even I can afford that, this talk of 6k engines however makes my eyes water. Link to comment Share on other sites More sharing options...
Chris G Posted October 15, 2003 Share Posted October 15, 2003 batteredoldsupersport, the upgrade was replace the 19row chargecooler pre-rad with a 43 row one. I got a good deal on the rad (a tenner) connectors, a bit of paint, 2 nuts,bolts ,washers a bit of welding wire/gas for the bracket and a bit of time was all it took. Picture here: http://www.g2.nu/chris/westie/pictures/20031012/med/img_2104.jpg Further improvements will come from getting cold air to the aif filter which could be accomplished with some ducting made out of old cardboard. Assuming you have carboard to hand that's a free upgrade and an infinite amount of BHP per pounds Link to comment Share on other sites More sharing options...
Bill Shurvinton Posted October 15, 2003 Author Share Posted October 15, 2003 GM did a 3 litre straight 4 that cosworth were involved in. There is also the 944 engine. But there are many trade-offs in an engine design. That's why some 4 pots weight more than some V8s. Ally is light, but nowhere near as strong as iron. So a K at 100BHP/litre is relatively more stressed than a Vx at that level. Se7ens are odd in that almost everything has been tried in them bar V12s ( 3 exups anyone). This is good because it fits with the Chapman way of using what was to hand to get the best bang for the buck. Using this philosophy every owner can then optimise the car according to their constraints. Mine is usually that SWMBO will cut off my testicles if I spend more money. The KV6 could yet turn out to be very interesting. Especially as wrecked freelanders and 75s start making it into the scrappies Link to comment Share on other sites More sharing options...
Sheds Moderator Posted October 15, 2003 Share Posted October 15, 2003 cng, now you are talking. My air intake is at the front of the enigne but behind the rad, you are right about the ducting to get a cold charge. Link to comment Share on other sites More sharing options...
tom7 Posted October 15, 2003 Share Posted October 15, 2003 KV6's have been available in scrappies in the front of Rover 800's for ages. this engine is rear-wheel-drivable as it was made under licence by Kia for their 2/4wd sportage. Freelander/R75's have a dual mass flywheel and other gubbins which does not lend itself to RWd. I believe Caterham looked at the KV6 for the 21 at one point. Tom Link to comment Share on other sites More sharing options...
Peter Carmichael Posted October 15, 2003 Share Posted October 15, 2003 The old hoary chestnut emerged a couple of pages ago... ... a V8 in a Seven means it won't handle ... so much power, but you can't use it Would someone please explain that to the guy sprinting the Quantum Extreme at Aintree who granny started it and got perfect consistent 0-64ft times and crossed the line at 140+mph, with run times humbling several of the single seaters in the British Sprint Championship. Link to comment Share on other sites More sharing options...
dino ferrana Posted October 15, 2003 Share Posted October 15, 2003 Peter shhhh Since when have we let fact get in the way of a good debate? A Quantum Extreme is definately not a seven! Link to comment Share on other sites More sharing options...
Bill Shurvinton Posted October 15, 2003 Author Share Posted October 15, 2003 Was the KV6 ever in an 800? Ithough that was only introduced in the 75 and that the 800 used the 2.7litre Honda engine. Link to comment Share on other sites More sharing options...
peterg Posted October 15, 2003 Share Posted October 15, 2003 A Quantum Extreme is definately not a seven no, with that engine it's more like a 10! 😬 Link to comment Share on other sites More sharing options...
dino ferrana Posted October 15, 2003 Share Posted October 15, 2003 I believe that although light the KV6 is rather large to go in even an SV seven. I think the steering rack would be a problem. Link to comment Share on other sites More sharing options...
Peter Carmichael Posted October 15, 2003 Share Posted October 15, 2003 The KV6 is not that light. The Nissan VQ series that we hear so much about is lighter for an extra litre capacity and better bore/stroke ratio. The packaging problems with all V6s in a Seven chassis are to do with the width at the rear of the head hitting the engine bay diagonals. Also plumbing in a decent inlet system is challenging, trying to fit everything in the vee and not having it all just get way too tall to fit under a bonnet. With an exhaust on each side it can be tricky to get a siting for a dry sump pump and you have to be careful with oil drainage paths because each bank is cranked over at an angle. Link to comment Share on other sites More sharing options...
Micky Posted October 15, 2003 Share Posted October 15, 2003 Was the KV6 ever in an 800? Yes, it replaced the Honda V6. Excellent engine, screamed like a screaming thing (but then most V6s do), rest of the car was cr@p ... gearbox went bang at 30 000 miles, a mere £3 000 to repair (ha -not my money though). If you paint "Dutton" on the side of a 7 does it make it faster? *tongue* Link to comment Share on other sites More sharing options...
edmandsd Posted October 15, 2003 Share Posted October 15, 2003 Arnie should have spent his £14k on one of those new 2lt V8 bike engines from what you've said regarding the Quantum Peter. Personally i'm still baffled as to why they put such an innovative product in such a horrible looking 7 copy. Home of BDR700 Link to comment Share on other sites More sharing options...
kandyman Posted October 15, 2003 Share Posted October 15, 2003 Image of an S2000 engine in a Seven: here 300 BHP shouldn't be that hard starting from there? -Marin Link to comment Share on other sites More sharing options...
Barry Posted October 15, 2003 Share Posted October 15, 2003 I think you'll find that's a Donkervoort, another horrible looking (apart from the rear lights) 7 copy, also considerably larger than a Caterham. Link to comment Share on other sites More sharing options...
martinwhitcher Posted October 15, 2003 Share Posted October 15, 2003 Marin, Is yours a caterham? if not this is why you can fit a s2000 engine in, in a Caterham it's too tall, however a civic type-R engine will fit ok. Martin MW 51 CAT Superlight No.171 Link to comment Share on other sites More sharing options...
Paul Ranson Posted October 15, 2003 Share Posted October 15, 2003 Tuned KV6 info at here The 2 litre installations in the back of the new Pilbeam hillclimbers are very neat and apparently quite small. The engine bay diagonals are surely a problem that's there to be solved.... A couple of weeks ago I was at Kames somewhere in the Scottish wilderness. There were two single seaters present, one fitted with a Cosworth KF, the other with a QED KV6. The former is clearly a no messing about racing engine, the latter idles at reasonable revs.... One of my neighbours has a Morris Minor with a 1.8K, he's thinking of fitting a KV6. Paul Link to comment Share on other sites More sharing options...
kandyman Posted October 15, 2003 Share Posted October 15, 2003 It's not a Donkervoort but a HKT, and yes, they are slightly larger than a Caterham. I don't know if they are larger than an SV though. Coming back to the topic, HTK also regularly use the Audi 1.8T turbo engine tuned up to 300+ bhp. -Marin Link to comment Share on other sites More sharing options...
normalbloke.29 Posted October 15, 2003 Share Posted October 15, 2003 Quote etc etc. "Personally i'm still baffled as to why they put such an innovative product in such a horrible looking 7 copy" Possibly to open the engine up to a market a little less stuck up than ourselves... 😬 Link to comment Share on other sites More sharing options...
Bare Posted October 16, 2003 Share Posted October 16, 2003 Funny that.. Even the ''Hated Westfields" which I agree do look rather 'odd' do have a superior IRS system than Cat..but then Children could have designed a better one than Cat's lashup.. if only the Westies weren't so darned silly looking.:-) WCMultralite.com... photos of a S2000 Seven 'Clone'.. not quite 'right' looking, but not laughable either..alledgedly Quick. Link to comment Share on other sites More sharing options...
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