CairB
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| posted on 13/2/05 at 10:19 AM |
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Duratec developments
This may be of interest to some
Overbored 2.3 Duratec
Cheers,
Colin
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Volvorsport
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| posted on 13/2/05 at 11:50 AM |
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hmm , i could build a 2.5 NA 16v volvo motor that could do that , even millingtons can do that .
Of course the duratec has light weight on its side .
www.dbsmotorsport.co.uk
getting dirty under a bus
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CairB
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| posted on 13/2/05 at 01:09 PM |
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quote:
Originally posted by Volvorsport
Of course the duratec has light weight on its side .
Yes, quite a useful attribute in a lightweight 7 style car 
Cheers,
Colin
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big_wasa
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| posted on 13/2/05 at 05:01 PM |
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bespoke parts..
That will not be cheap then ..
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mgstu
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| posted on 5/3/05 at 04:39 PM |
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BIG power, is never cheap 
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NS Dev
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| posted on 6/3/05 at 02:02 PM |
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quote:
Originally posted by Volvorsport
hmm , i could build a 2.5 NA 16v volvo motor that could do that , even millingtons can do that .
Of course the duratec has light weight on its side .
..............and if you go ally block millington then the weight's ok as well, and it can be a 2.5 litre too, looking back a good few years
(memory says 1998) Gary Midwinter's 4wd escort rally car with 2.5 ally block millington was running 305 hp!
[Edited on 6/3/05 by NS Dev]
[Edited on 6/3/05 by NS Dev]
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clbarclay
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| posted on 6/3/05 at 05:06 PM |
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quote:
Originally posted by mgstu
BIG power, is never cheap
Chevy big block. OK so calling it non-light weight is a v.big understatement, but as much BIG power as you need (or even don't need) for minimal
investment.
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NS Dev
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| posted on 6/3/05 at 05:53 PM |
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Definitely not for a Se7en, but the smallblock chevy is extremely cheap power too.
My mate runs Ultima (together with his dad) and their latest demonstrator has a 685hp chevy in it which he informs me cost in the region of £12,000
(was actually from American Speed in the USA so the exchange rate helps a lot!)
When you compare that to the £18,000+ that the 300hp alloy millington engine costs, it looks like a bit of a bargain, especially as the chevy was
alloy block and heads too!
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ned
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| posted on 7/3/05 at 09:54 AM |
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you can of course get 300bhp out of a naturally aspirated vauxhall xe, but i wouldn't recommend it for road use! oh and it'd probably cost
a bit more than 12k, or 18k come to think about it...
Ned.
beware, I've got yellow skin
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DarrenW
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| posted on 7/3/05 at 10:30 AM |
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Ned - have you seen the Millington/QED block that is in PPC this month. Approx 19Kg lighter @ £4000 just for the block!!!!! And if i have read it
correctly that is just for std 2l internals. God knows what an overbored one would be.
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ned
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| posted on 7/3/05 at 11:24 AM |
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the qed block has been around for years (on paper, if not in reality), though I've never heard of anyone actually using it due to the obscene
cost of it!
Ned.
ps fyi in the same/previous issue a couple of the shots about dry sump systems was of the same ally qed xe block..
[Edited on 7/3/05 by ned]
beware, I've got yellow skin
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NS Dev
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| posted on 7/3/05 at 12:39 PM |
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Paul Exon (one of the "main men" at QED, races in my class and club in Autograss, so you can imagine the difficulties I have with my std
XE lump!!
However...............in races that we have both lined up in, he hasn't beaten me yet!!! (his chassis can't seem to put the power down,
and when it does, he seems to break something!!)
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locost_bryan
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| posted on 8/3/05 at 12:29 AM |
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quote:
Originally posted by NS Dev
Definitely not for a Se7en, but the smallblock chevy is extremely cheap power too.
The Elfin MS8 Clubman uses the 300kw (400bhp) 5.7 alloy genIV V8 from the Holden/Vauxhall/Pontiac Monaro/GTO, as well as it's clunky Tremec T56
6-speed and posi-traction diff - a seriously quick beastie but very definitely NOT locost!
Bryan Miller
Auckland NZ
Bruce McLaren - "Where's my F1 car?"
John Cooper - "In that rack of tubes, son"
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cymtriks
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| posted on 12/3/05 at 11:33 PM |
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Honda Engine?
Honda Civic Type R engine with a Jackson Racing supercharger has 260bhp.
I've no idea what a CTR engine from a rear crashed car would cost but the supercharger costs around £1600.
TTS were offering a 350 bhp supercharger conversion for £3000 for the CTR at the NEC show a few weeks ago.
These engines must surely represent the most bang per buck at around 300bhp for an engine of "Seven" dimensions. I'm guessing
they'll be half the price of a Ford or Vauxhall lump for the power and rev higher.
Does anyone know what second hand CTR engine sell for?
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chrisf
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| posted on 12/3/05 at 11:40 PM |
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Are you talking about the B series CTR? In the US, they sell for 50% more than the ITR. I say this, but I last kept up with this a couple of years
ago. The price may have dropped a bit.
Have you looked into the hybrid motors such as the CRV block with the ITR head? These often make 180-200 WHP out of the box. Maybe a bit more if you
were to use bike throttle bodies.
Or are you talking about the newer engines. If so, I have no idea about them.
--HTH, Chris
[Edited on 12/3/05 by chrisf]
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cymtriks
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| posted on 13/3/05 at 12:08 AM |
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Honda Engines
I'm talking about the latest 2 liter VTEC engine producing 197 bhp (in the UK) or 220 bhp (where higher octane fuel is available).
The latest engines, I think, rotate the right way whereas older versions went the opposite way to the rest of the world. This is obviously important
to us as Locost cars usually mix and match parts.
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ned
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| posted on 13/3/05 at 12:46 AM |
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latest engine rotate the right/normal way. the uk type r engine is 197bhp, but jap spec which i've seen used for racing has 220bhp. k20a is the
one i've heard used most (220bhp) and is capable as said of 300bhp with a supercharger as per he ariel atom. You can buy a k20a brand new wih
dry sump system and ready to go for around 8k if memory serves me correctly. for the cost/power i think it represents good value. where else will you
get a reliable everyday drivable 220-300bhp for the same money?!
Ned.
beware, I've got yellow skin
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NS Dev
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| posted on 13/3/05 at 10:09 AM |
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Good point Ned. £8000 is a lot of money, but then look at the price of a K-series making that power and the Honda does look good value.
Having said that, if you can live with only 200hp and a bit more weight then the vauxhall 16v XE makes a lot of sense again, certainly 200hp will only
cost you a really good base engine and the throttle body injection setup, which to my reckoning (doing it with off the shelf bits not megasquirt etc)
will set you back around £2000.
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ned
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| posted on 14/3/05 at 10:01 AM |
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NS Dev,
I completely agree with you, i hope my xe engine to make 240+bhp but so far the list of bits I dared add up comes to nearly £3k! most bits are second
hand, but new and I've saved a lot of moeny on the throttle body/ecu kit (£1250) and 88m intruder pistons (£200!!)
the block is in the back of the car, so should be able to get it to the engine shop this week to get it cleaned/dipped, crack tested and bored out,
then the engine build can begin in ernest.
only thing currently bothering me is whether i should shell out for steel rods, the revs should be ok (7.5krpm) but the extra compression and power
makes me worry, but rods are around £600
Ned.
[Edited on 14/3/05 by ned]
beware, I've got yellow skin
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NS Dev
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| posted on 14/3/05 at 12:46 PM |
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for 7500 rpm, the rods will be fine, but if you are going the whole hog, get them crack tested and then clean them up (smooth off the flash, polish
and balance them) and then get them shot peened. Apparently they are then ok to 8000 (not sure I'd do that though!)
In this application it is only revs that will break the rod (unless a bearing picks up or some other disaster!!), it is fine in compression and any
increase in torque/compression will only put the rod in more compression. It is only the revs that increase the tensile loads on the rod.
[Edited on 14/3/05 by NS Dev]
[Edited on 14/3/05 by NS Dev]
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