1000cc Turbo

[novarally]

i saw something years back about someone racing in an up to 1000 class with a 2 pot BDA engine

Correct, a 2-pot BDA ran mid-mounted in a 1970's spaceframe Fiat 500 Thundersaloon circuit racer - 'The Mighty Mouse'.

The car itself still turns out on hillclimbs occasionally, owned by Ian Medcalf, it now has a Swiftune A-Series in the middle. It's one of the best presented race cars I've ever seen;

http://www.flickr.com/photos/48780137@N05/6158666892

http://www.flickr.com/photos/alansart/7400458628/

[therealnovaboy]

a quick google returned this. http://mk1-forum.net/viewtopic.php?f=4&t=2675

[matt_vaughan]

Puts you into the 1401-2000cc Class for hillclimbing and sprinting, so you're up against hoardes of 205 Mi16's, 2 litre Mk.1 and Mk.2 Escorts, and of course at the top of the tree Keith Murray in his awesome 1400 turbo Audi 80.........

Still lots of fun, but I can't see a Nova challenging for top honours in that Class.

I've got an idea using some Daewoo parts, hopefully they'll drop compression ratio enough for me to run reasonable boost on a 1396cc NZ. The limitation from then on I suppose will be the bottom end, however C14NZ bottom ends aren't going to break the bank if i need to experiment a bit. Colin is right though, and this is the problem I've faced, no combination seems to be an obvious answer as far as classing in sprints/hillclimbs go.

[mowgli]

a 1600 conrod is shorter than a 1400 one. so you can drop the cr that way too

[matt_vaughan]

Scrapped the idea of the de-stroke, just way too much hassle, here's the WIP plan:

- C14NZ Bottom End (Completely standard bar ARP rod bolts)
- Daewoo 1.6 16v Cylinder Head (1.5 is exactly same)
- Ford Focus 1.8 Zetec Manifold, modified for Daewoo head + Turbo
- TD04 Turbo from Subaru Impreza
- Megasquirt V3

Looking at 200+ hp on relatively low boost judging by what the crazy European Daewoo guys are getting. 14NZ block are scrap value so not bothered about this being an "experimental" engine.

Most importantly, 1396cc x 1.4 (equivelancy factor) = 1954 cc

[_Jake]

what about a 1.4 block with 1.2 pistons 1.3 rods and crank with an e16se head with low boost?

[matt_vaughan]

what about a 1.4 block with 1.2 pistons 1.3 rods and crank with an e16se head with low boost?

That just sounds like lots of opportunity for failure to me. I'd rather spend the time and money getting it set up properly on standalone than trying to build a bottom end like that. The Daewoo boys seem to have proven that these little engines can command some power so going to have a go. As far as I can tell so far, no-one's done this in a Vauxhall before, and if they have, I cant find it.

[_Jake]

That just sounds like lots of opportunity for failure to me. I'd rather spend the time and money getting it set up properly on standalone than trying to build a bottom end like that. The Daewoo boys seem to have proven that these little engines can command some power so going to have a go. As far as I can tell so far, no-one's done this in a Vauxhall before, and if they have, I cant find it.

i think mowgli did that bottom end, but with a 1.3 block, Could be wrong. Im doing it with a 1.4 as its less meat to take off when reboring

EDIT: but fair enough mate, if that way has been tried and tested then fair play

[mowgli]

i did, you can get decent compression out of using the 1200st pistons. if you were going n/a. but a 1400 with an e16se head would be better for a turbo, but to be honest, you should be looking for at least 300hp to try to win the up to 2000 class. colin has around 200 in th eup to 1400 class

[matt_vaughan]

I was always under the impression that the 12st/13s hybrid engine resulted in mental high compression? Like "get some dishes machined into those pistons quick!" compression! :D

Looking at the heads on the Daewoos, I can see where the low comp comes from, there's a huge chamber as far as I can tell, but I'm not really an expert, still trying to learn here :D

Mowgli, I've competed at Harewood previously in a single seater 1100cc Hillclimb car, however it's mega expensive to run and repair and it's not mine (my dads)! I'll be happy with 200+, dont want to spend mega bucks on the block and I think anything above 10-15 PSI on standalone will probably start to push the block past it's abilities.

In the >2000cc Modified Production Class I'm up against 205s, Integras etc etc. Yes, the Nova will probably not be class winning, I just dont want to be left frustrated by a hurrendous lack of power.