jeffw
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| posted on 5/6/15 at 10:04 AM |
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this is exactly my point. Max power is at max revs and torque just keeps on rising
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velocitykendal
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| posted on 5/6/15 at 11:13 AM |
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quote:
Originally posted by daniel mason
I can't see the need for supercharging or turbo in a 7 which is 240bhp to start with?
Torque?
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wylliezx9r
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| posted on 5/6/15 at 11:47 AM |
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Crikey Rotrex chargers aint half expensive though, TTS want close to a grand just for the brackets and pulleys 
I spent a lot of money on booze, birds and fast cars. The rest I just squandered.
George Best
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jeffw
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| posted on 5/6/15 at 12:22 PM |
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You where expecting to build a car for £250 then? It is a fair price for the amount of R&D and manufacturing that goes into it. Of course
I'm sure you could do it cheaper.....
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Oddified
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| posted on 5/6/15 at 12:24 PM |
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As with many things in this hobby, the cost all depends on what you can do yourself. I only bought the supercharger kit itself (charger, pipes, oil
cooler, filter..) and then made my own mounts/pulleys/pipework/intake etc.
Ian
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Dopdog
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| posted on 5/6/15 at 01:32 PM |
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ROTREX, its the only way to go 
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Ben_Copeland
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| posted on 5/6/15 at 01:58 PM |
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Vauxhall Z20LET will go to 300bhp easily. Mines 272bhp and 309ft/lb torque
Relatively cheap and much easier to fit into a 7 than the Saab motor.
View the link in my signature for build thread
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
Enter Your Details Here
http://www.facebook.com/EquinoxProducts for all your bodywork needs!
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Worzey
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| posted on 5/6/15 at 04:16 PM |
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Loving the Rotrex charger in mine. The linear power delivery isn't spikes at all and helps get the power down in the 20v 4AGE.
I'm "only" running at 248bhp which is more than enough for general road use and can't really see myself adding any more.
As said before, they aren't cheap but they are incredibly good value 
Caterham R400
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froggy
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| posted on 6/6/15 at 09:56 PM |
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A lot of the torque issues with turbo set ups are to do with sizing the turbo and controlling boost as it comes in . I've gone over to a ball
bearing blower and have boost linked to rpm and throttle position to avoid huge torque issues . At somewhere like blyton I'm around the same
performance in a straight line as the quick lightweight sevens with 450hp and 880kg . Round corners is another matter but I enjoy myself .
From what I've seen the sevens with over 250hp seem to have a harder time connecting it to the Tarmac than the bike engined stuff
[IMG]http://i144.photobucket.com/albums/r187/froggy_0[IMG]
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cal
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| posted on 7/6/15 at 08:07 PM |
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Hey guys just thought i would add in my thoughts here and actually post up for the first time in a few years.
I am surprised that no one has yet mentioned the 1UZFE lexus V8 engine.
Yes its a little on the large side especially at the heads with the quad cam but Ls400s can be had for c.£400 making the engine pretty much free.
The engine is 250-275bhp unopened and once you put some decent headers on it making it flow better expect more power. The torque is also pretty
good.
Down side is the slush box but if Auto is not your thing then conversions with the W85 or R154 even the Toyota V160/161 have been achieved although i
wouldnt suggested trying to get your hands on a V160 series as they are pricey!
If you want to destroy your rear tyres you can even add a turbo with pretty much stock everything else and the ECU and jets will happily run 6/7psi of
boost without upgrades.
seems like a locost choice really.
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froggy
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| posted on 7/6/15 at 10:26 PM |
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my chassis is slightly different to a normal 7 type as the straight run from the rear to front taper is around 10" longer than normal which
gives a little more room at the front to get the heads in
[IMG]http://i144.photobucket.com/albums/r187/froggy_0[IMG]
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Fcck2000
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| posted on 8/6/15 at 02:57 PM |
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quote:
Originally posted by Calzonii
I think im going to go S2000 if it has forged internals and can take the power upgrade at some stage in the future then that is perfect for me. Plus
if I change the throttle bodies on it and get about 250 thats sweet as a nut... For now..
Just a thought 220bhp in my Super six feels like more than enough. On the roads 1st gear has to be fed in and second will leave you spinning if you
keep your foot flat. So that really only leaves the last 3 gears of which you would be well over 80 in third gear within a few seconds of leaving
second gear.
What I'm trying to say is 220bhp in my 600kg car is seriously quick and more power would mean just pressing the gas pedal less or spinning the
wheels more.
I really think this Duratec 215bhp package is a great deal, brand new engine, ECU ready mapped all the sensors throttle bodies etc ready to just bolt
in for 7k plus VAT
http://omextechnology.co.uk/Omex%20Duratec%20VVC%20MZR%20Engine%20v1_0.pdf
Obviously it could be done cheaper with a second hand engine etc
Just another option to think about
Paul
Tiger SSC
220bhp on standard MZR Duratec engine with throttle bodies and mild camshaft upgrade.
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beaver34
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| posted on 9/6/15 at 08:33 AM |
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quote:
Originally posted by Fcck2000
quote:
Originally posted by Calzonii
I think im going to go S2000 if it has forged internals and can take the power upgrade at some stage in the future then that is perfect for me. Plus
if I change the throttle bodies on it and get about 250 thats sweet as a nut... For now..
Just a thought 220bhp in my Super six feels like more than enough. On the roads 1st gear has to be fed in and second will leave you spinning if you
keep your foot flat. So that really only leaves the last 3 gears of which you would be well over 80 in third gear within a few seconds of leaving
second gear.
What I'm trying to say is 220bhp in my 600kg car is seriously quick and more power would mean just pressing the gas pedal less or spinning the
wheels more.
I really think this Duratec 215bhp package is a great deal, brand new engine, ECU ready mapped all the sensors throttle bodies etc ready to just bolt
in for 7k plus VAT
http://omextechnology.co.uk/Omex%20Duratec%20VVC%20MZR%20Engine%20v1_0.pdf
Obviously it could be done cheaper with a second hand engine etc
Just another option to think about
Paul
i suppose it depends on your tyre and drive setup, i have 340bhp and have no wheel spin issues putting that down apart from if im flat in first from
the off
im on r888 and axle with a plate diff
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Fcck2000
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| posted on 9/6/15 at 08:56 AM |
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I agree it does depend on setup.
Currently on 888s protect double adjustable and installed and corner weighted by Northampton motor sports. My main thought is the diff which I intend
to install one of the atb variants later this year.
Honestly, with the power you have in your kit do you ever manage to keep your foot to the floor on a road for more than 3 seconds? I manage little
squirts but the speed builds up so quick I end up backing off. Obvs in straight lines on dual carriage ways it might be different but I'm
talking about nice driving type roads.
Paul
Tiger SSC
220bhp on standard MZR Duratec engine with throttle bodies and mild camshaft upgrade.
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bombero
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| posted on 9/6/15 at 08:56 AM |
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quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
I have a crated zetec jenvey said, k6 emerald, dunnell head work, cams, arp, bigger injectors, light flywheel simpson exhaustetc and have 221.3 bhp
and 178.9ft/lb. [Edited on 3/6/15 by matt5964]
O/T - Out of interest, what make and duration of cams are you running? Any pics..
Custom dunnell cams.
Ain't got many pics on hear as its a faff to upload, what do you want to see?pics off have some on track, some of exhaust, engin bay?
Hi Matt, exhaust and engine bay would be much appreciated!
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matt5964
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| posted on 9/6/15 at 12:25 PM |
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quote:
Originally posted by bombero
quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
I have a crated zetec jenvey said, k6 emerald, dunnell head work, cams, arp, bigger injectors, light flywheel simpson exhaustetc and have 221.3 bhp
and 178.9ft/lb. [Edited on 3/6/15 by matt5964]
O/T - Out of interest, what make and duration of cams are you running? Any pics..
Custom dunnell cams.
Ain't got many pics on hear as its a faff to upload, what do you want to see?pics off have some on track, some of exhaust, engin bay?
Hi Matt, exhaust and engine bay would be much appreciated!
Have a look at my photo archive, if they dint suffice.. Let me know.
Luego velocity XT 2.0ltr 221.3bhp 178.9lbft
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bombero
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| posted on 9/6/15 at 12:46 PM |
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quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
I have a crated zetec jenvey said, k6 emerald, dunnell head work, cams, arp, bigger injectors, light flywheel simpson exhaustetc and have 221.3 bhp
and 178.9ft/lb. [Edited on 3/6/15 by matt5964]
O/T - Out of interest, what make and duration of cams are you running? Any pics..
Custom dunnell cams.
Ain't got many pics on hear as its a faff to upload, what do you want to see?pics off have some on track, some of exhaust, engin bay?
Hi Matt, exhaust and engine bay would be much appreciated!
Have a look at my photo archive, if they dint suffice.. Let me know.
(Such a newbie question) but sorry, how do I do that..?
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jeffw
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| posted on 9/6/15 at 01:04 PM |
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quote:
Originally posted by Fcck2000
Honestly, with the power you have in your kit do you ever manage to keep your foot to the floor on a road for more than 3 seconds? I manage little
squirts but the speed builds up so quick I end up backing off. Obvs in straight lines on dual carriage ways it might be different but I'm
talking about nice driving type roads.
Paul
Is that you criteria for having fun in a kit?
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kingster996
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| posted on 9/6/15 at 01:06 PM |
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quote:
Originally posted by bombero
(Such a newbie question) but sorry, how do I do that..?
Rab, you click the "photo archive" link with the little arrow, just above "building" under the user's details on the
left of a post
[edit] - or here: http://www.locostbuilders.co.uk/photos.php?action=gal&user=matt5964
[Edited on 9/6/15 by kingster996]
I used to be indecisive, but now I'm not so sure
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beaver34
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| posted on 9/6/15 at 01:44 PM |
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quote:
Originally posted by Fcck2000
I agree it does depend on setup.
Currently on 888s protect double adjustable and installed and corner weighted by Northampton motor sports. My main thought is the diff which I intend
to install one of the atb variants later this year.
Honestly, with the power you have in your kit do you ever manage to keep your foot to the floor on a road for more than 3 seconds? I manage little
squirts but the speed builds up so quick I end up backing off. Obvs in straight lines on dual carriage ways it might be different but I'm
talking about nice driving type roads.
Paul
i find that i dont need to use more than half throttle under normal fun road usage its goes as fast as you press the pedal
or i will use full throttle up to around 4-5k then just back out as the power builds
it actually feels like you being fired out of a cannon is addictive, near enough pointless and far slower point to point then my Elise that has half
the power but nothing is more fun which is what i wanted
a good diff makes a huge difference, your should not light the tyres really apart from top end of 1st i would think
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bombero
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| posted on 9/6/15 at 06:56 PM |
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quote:
Originally posted by kingster996
quote:
Originally posted by bombero
(Such a newbie question) but sorry, how do I do that..?
Rab, you click the "photo archive" link with the little arrow, just above "building" under the user's details on the
left of a post
[edit] - or here: http://www.locostbuilders.co.uk/photos.php?action=gal&user=matt5964
[Edited on 9/6/15 by kingster996]
Cheers, Chris!
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bombero
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| posted on 9/6/15 at 07:01 PM |
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quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
quote:
Originally posted by bombero
quote:
Originally posted by matt5964
I have a crated zetec jenvey said, k6 emerald, dunnell head work, cams, arp, bigger injectors, light flywheel simpson exhaustetc and have 221.3 bhp
and 178.9ft/lb. [Edited on 3/6/15 by matt5964]
O/T - Out of interest, what make and duration of cams are you running? Any pics..
Custom dunnell cams.
Ain't got many pics on hear as its a faff to upload, what do you want to see?pics off have some on track, some of exhaust, engin bay?
Hi Matt, exhaust and engine bay would be much appreciated!
Have a look at my photo archive, if they dint suffice.. Let me know.
Matt, photo archive is perfect - thanks!
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