Turbo Elise

[Shug]

Mike, I'd never fit it there without bags of heat shielding - dunno if you read my thread a few months ago where my heat shield had disintigrated and the heat from a 80tut cruise back from edinburgh came scary close to starting a cabin fire with some stuff in the cargo net. A turbo would simply burn through the bukhead in seconds, or if you put ally in there, would use the cabin as a heat sink.

I have to think it's 'walk away from the turbo' time, but kudos to you if you persevere

[Mikie711]

I am starting to agree with the collective wisdom on here that this would soon become a huge PITA. The basic problem is the engine is not stiff enough for this type of application. Without throwing massive amounts of money at it the problems will just keep coming once it's built. Looks like a supercharger is the way ahead. easier to fit and I have most of the required parts already. Just need Low Comp pistons and the charger gubbins, loads in the states for penny's.
Wonder if my mate that lives there and works here would mind squeezing an Eaton M62 into his carry on luggage

or


Anybody selling a 'yota S2 cheap?

Mike

[Shug]

Daresay it'd be a piece of the proverbial to have him source one and then courier it? I guess it'd still work out cheaper than getting one over here if they are mega cheap. Chargecooler as well, if you want to do it properly

[hiscot]

mike bbr used to offer a 180 bhp elise conversion but it was pants i believe and on a stock b/end ?
b&c also sold a turbo conversion i think they used the theilerts 220 bhp engine and that got a good write up but reliable ??? it did not take off
i have seen superchargers fitted to the rear of the k these where the mini type and one sold not so long ago as a comp engine
but i would stick with the tt setup some one on here blew a tt190 up and fitted scottys vhpd engine to sell the car do a search he may still have the charger and kit from the tt

[tuscan_thunder]

Lag with distance from engine is not really a big issue: look at PPC magazine's feature on a 205gti with a turbo in the rear silencer....

The basic idea of this is pretty simple: my brother in law turbo'd his Focus and it was straightforward (apart from him forgetting to lower the compression and melting a piston...) and didn't tkae too long over evenings.

He now has forged pistons and rods and it's all systems go again.

MIke, what does GB's Exige run in terms of rods and pistons?

[Mikie711]

GB's is the TT conversion but running 285 cams, reputed to make 250bhp on Wallace performance dyno (ssh I never told you ). Would think it has omega low compression pistons same as QED sell and VHPD rods thats a guess but probably not far off the mark. I doubt TT make their own rods and pistons.

[hiscot]

TT make their own pistons and forged rods it should be making over 270bhp i have seen the emerald plots for this engine

[ABZ-Elise]

If you supercharged where would you fit the supercharger? I've got an Eaton M45 off a Cooper S in my shed and I had a quick look to see if there was space to fit it...couldn't see any.

Kev.

[Mikie711]

The TT supercharger looks a lot like a converted turbo, about the same size as a T25. If you are standing at the back of your car looking at the engine it is mounted above the exhaust manifold on the right hand side taking drive off a modified crankshaft pulley. Very tidy install BTW charge pipe runs round the right hand side and into the TT made plenum. The 260 kit uses TB's and double injectors. Very neat bit of kit. When you see it it looks worth the £4700 they sell it for, however the kit on their site is not for multi TB's but a single TB and single injectors. Still get shortened rods, s/charger and pipework. . Would be the way ahead if I hadn't already bought 99% of the bits for my engine. Maybe one day......................

hiscot, you might have seen the plots but it "only" makes 250bhp at the flywheel. I still doubt TT make there own rods, more likely the are made by arrow to TT specs, I see nothing in the company brief about making anything other than turbo parts and superchargers. The main thing aboout the kit is not the amount of power but the fact that is so linear and on tap just about everywhere in the rev range.

Which brings me full circle, because if rover can LP turbo the standard K to produce 160bhp surely its possible to LP turbo a modified engine to produce at least a healthy increase. And by increasing boost, to say 4-6psi, as rover did, you don't have to make it rev as hard to make it's power..............any thoughts.

[hiscot]

Mike trust me they make 270 at the fly ( emerald plot ) they also used there own spec rods and pistons the pistons where not forged to begin with and gave them problems they where hypertunanitic or something a type of cast alloy i doubt they cast the rods ,pistons or other parts ( they dont have a foundry ) so yes made to their spec but are not off the shelf parts
on the 260 they dont even use stretch bolts but there own spec studs and nuts to suit there own bottom rail
all the tt superchargers use a single t body the 260 had its own tt made plellium with double injectors as this allows more fuel but retains the same fuel pressure its quite long and built for torque
the kit on the site is not a vhpd based tt260 as i said the 260 is massivley strengthened with a better annus in the charger ( more boost ) it used the vhpd head and cams with larger ex valves
there where only approx 7 made, one races in the lot series, gb sprints his ,and mine is still on a pallet

[Rich H]

If you supercharged where would you fit the supercharger? I've got an Eaton M45 off a Cooper S in my shed and I had a quick look to see if there was space to fit it...couldn't see any.

Kev.

I know of a place it would fit.... My Porker...

If you feel like selling it, let me know

[Mikie711]

Found this on an old TT site

Supercharged VHPD engine. Strengthened lightweight pistons and forged connecting rods designed by Turbo Technics. Low compression ratio. Strengthened crankcase and cylinder liners. Cast aluminium ladder frame to increase engine rigidity. High tensile through bolts. Revised lubrication system. Uprated cylinder head. Uprated camshaft drive. Engine carefully inspected and rebuilt to very exacting tolerances. Supercharger oil supply and return from engine oil gallery. Uprated crankshaft pulley, alternator pulley and drive belt idler pulley. Automatic supercharger belt tensioner system with sealed for life roller bearings. Reinforced poly-vee supercharger drive belt. Cast aluminium supercharger mounting support.

So yes it looks like they outsource all the parts bar the supercharger, possibly even a scholar block "Strengthened crankcase and cylinder liners". Surprised its a cast aluminum ladder frame and not a steel one.

Interested in selling your tt260 engine?

[Shug]

BTW Mikie, in case you didn't twig, it was I at Kames on Sat, marshalling.

[Mikie711]

Were you with jacobite? Pity I spun on the last timed run at the exit of Norries, not much grip on the grass!!!!.

P.S. Hats off to you guys for marshaling with all that rain in the mornings, especially Saturday.

Will post up a weekend report once I get time.

[Shug]

No, I was the bloke who arrived in a sheddy Elise Enquiring about the state of your misfire & couldn't swap you a lead cos I've got a VVC. Asked if the plugwells were full of water?

With the cunning goatie