sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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Im currently rebuilding my LET, but would like to aim for the 300bhp mark. Currently, the engine has the stock KKK16 turbo, and have been told that it would no way handle such power. Soooooo, ive been doing some reading up and seeing what other people are whacking on their LET's, and came across this on ebay....
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=230103292528&fromMakeTrack=true
Obviously a new manifold, downpipe etc would be needed to accomodate the larger turbo, but what are peoples thoughts on the turbo itself? Would this be a good buy, or is there another type i should go for instead?
Jon 
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ed
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Registered: 10th Sep 03
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Get the 350bhp kit from M-Vaux...
http://www.mvaux.com/c20let350.htm
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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not to my liking as not a garratt by the looks of it. you have fallen into the trap of believing boost=power. thers more than one way to skin a cat as it were. a kkk is more than capable of that kind of power. i have heard of people making more than 300hp on 1 bar boost.
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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so the KKK16 i have at the mo should be easily capable of runnning that kind of power?
i was under the impression that if you wanted to go for higher power using a turbo lump, a larger turbo was needed to handle the increased boost and pressure that it would have to take to reach a certain bhp?i mite be wrong though, im still learning
but also, that M-Vaux kit looks very tempting!
[Edited on 12-03-2007 by sxibeast]
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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300hp is on the upper limit of standed rods, deseeming and shot peening/ polishing will see them achieve in the region of 350. standed pistons are good for 4-500 hp. you will need phase chips, an actuator/boost controller, possibly injectors, a fuel pump, a decent fmic, head and throtelbody work, a decent exhaust system, an xe inletcam and vernier to help at high revs to name but a few. ime sure others will add their imput
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BeArDy
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Registered: 7th Aug 00
Location: Manchester
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Do not get a MVaux kit the Turbos are crap and the manifolds are really badly made and 99% of them need loads of work to make them flat (Just ask people on MIG about MVaux)
For 300bhp mark, Standard engine, Evo5 Chips, Uprated Fuel Pressure, Big intercooler, ARP Rod Bolts.
Anything more then 300 i would say look into internal mods
As for EBay turbos like that, Stay away mate, do so research mate they fall apart easy plus they are not the spec of a Garrett or Turbonettics.
Do i search on MIG about this, and for even more so look on Honda sites as theres loads of people on there have tried and tested them.....
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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I'll go with you on this one Beardy and steer well clear then! The kit does look impressive though!  However if im spending that much on a kit, i dont want any other hidden costs to come with it. I take it these ebay turbos are cheap copies not built to the same standards then? I thought the price may have been too good to be true!
Currently i have a 8.1litre intercooler, SARD adjustable FPR, getting ARP bolts at the end of the month. Was also going to enlarge the top hat and smooth it all out for better air flow . I have also considered getting VXR injectors. Would they be a worthwhile purchase or a waste of time? Also, are steel rods worth buying? Ive seen a set for £350....
Can you buy vernier pulleys separately, or do they only come in a pair (and where can i get them from?)?
How much are EVO 5 chips? I see them on ebay alot, however im never too convinced that they are genuine. Do Regals/Courtney do them (or any other turner for that matter)?
Sorry for all the questions guys, but thanks for your help so far! Keep the info coming if you dont mind! 
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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Heres the link to the rods i saw...
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&rd=1&item=320077492273&ssPageName=STRK:MEWA:IT&ih=011
am i being suckered in, or should i get them (or just have the originals reworked? and if i get them reworked, where is best to send them? i dont want a half assed job doen on them)?
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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buying rods mean full rebuild, rebore block piston rings bearings etc etc. goggle sbd for the pullies. as for the injectors think the are about 400cc but correct me if ime wrong. i think injectors are the way to go as can thus run less fuel pressure and put less strain on the fuel system. need a set of rollers to set up as its easy to get it very wrong!
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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heres the rods i am using. desemed and polished let's. fairly easy to do just takes abit of time and patience
[Edited on 12-03-2007 by Ben ev]
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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oooo! shiny! lol! Did you do those yourself? If so, how did you do them? did you grind off the seams and rub down and polish until they were like that?
Think i mite replace a few odds and sods whilst the block is apart any way (as its done 140K already ) so new head gasket, water & oil pump and sump gasket too!
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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yep dynofiled all the seems and then polished them with micromesh going down the grades. have to make sure they are worked in the right direction around the small end up the shaft around the big end, not side to side as this is considered worse than doing nothing at all, also make sure they are of equal wait afterwoods.
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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whats dyno filed? if i used just a normal metal file, would that be adequate do you think? i take it i shouldnt use an electric sander due to excessive heat etc weakening the structure?
Does the seam run all the way round both the big end and the small end?
Are all your rods of eaqual weight give or take a gram or two, or are they all exactly spot on?
Cheers for your help so far mate!
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Warren G
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Registered: 14th May 06
Location: Kent
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any good
http://cgi.ebay.co.uk/vauxhall-cavalier-calibra-hybrid-turbo-inc-manifold-gsi_W0QQitemZ260095947878QQihZ016QQcategoryZ10404QQrdZ1QQcmdZViewItem
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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a dyno file is a pnuematic belt sander which looks like a file. makes easy work. wouldnt wont to do it by hand. can get the rods shot peened afterwoods but a polished finnish is just as good as long as you have all dings etc polished out or they will become the weak point. however people may disagree saying shot restores a harder exposed surface that has been removed through working. your decision
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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ooo! added to my watch list! cheers mate!
Did you just sand and polish the outer edge of the rod, or did you do in the middle too? I think i have a company on the books at work that does shot peening, but will go for the sanding and polishing method first i think! Hmmm, i dont have one like you have (the dyno file), however i do have an air powered Dremel type thing with a rotary sanding bit on which may work! Mite get hold of just an old rod to practice on and get it right first before i attempt the ones im goin to use in the engine! How long did it take you to do your rods?
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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trouble with rotary is it works the material in all directions. it is very important to go around the rod!! i also had to skim the big end bolt mating surfaces to acheive a flush finnish after radiusing the edges around it. skim was about 0.1mm. def have a pratice first. once you get the jist off it its ok. worry about removing the seems and getting a nice rad on all the point edges (around the big end bolts and little ends etc) then worry about the finnish afterwoods. get some electronic scales which are cheap enough to weight them. got mine accurate to within 0.1 grams of eachother. took about 6hours/rod to do the job. dont cut corners or you'l shag your engine
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Ben ev
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Registered: 23rd Oct 05
Location: kingslynn / torquay
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might do another set and put them on ebay but not really sure on what thed be worth? and or dont wont to be responsible for possible major engine failiure. saying that i reckon mines running in the region of 300horse and ive reved it out plenty of times!
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sxibeast
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Registered: 6th Aug 03
Location: Milton Keynes
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Aaaah yeah i see what you mena! your one will just take the material off in one direction only etc. Did you skim the big end bolt surfaces on a mill, or use the dyno file for that too?
Do you have any pics of the radii you put on the corners by any chance? just so i kno what to aim for when i start
Cool, i'll be able to do a fair amount of the work at work, which will be better than im my clogged up garage! lol!
What mods have you doen to your engine so far?
Beardy mentioned EVO5 chips, i take it these are the blighters i should be looking at....
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ih=016&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=260095327154&rd=1&rd=1
But do you know of any UK firms that do them? It says item location France :s, and i dont want to get ripped off by some tart hundreds of miles away! lol!
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