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Oct 26, 2017 16:02:02 GMT
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Hey Y'all, I've bought myself a GTM Libra. All good!
It's got a 1600 K-Series with a CVT autobox. Erm, not good. It sounds like a herd of highly perturbed cows.
So I need advice and options for an engine swap - here's where I'm at.
K-Series Trophy 160vvc with PG1 box. Cheap, light and the easiest, but HGF and not too powerful.
Honda B16, B18, H22, K20.
Clio 182 but I’ve heard the gearboxes are chocolate.
Mitsi 4a Mivec
Any other ideas? I don’t want turbo and a v6 would be difficult as it’s not a v6 shell.
180-200 bhp is what I’m aiming for.
Cheers,
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'83 GTM Coupe. 4A-GE Powered
'00 GTM Libra Auto. Ick.
'71 Detomaso Pantera. Current Resto
'89 GMC Safari Tow/Kip bus
'05 SAAB 9-3 Daily
'71 Siva Moonbug. Not even contemplating resto yet.
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93fxdl
Posted a lot
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Posts: 2,000
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Oct 26, 2017 19:24:44 GMT
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If a v6 is desirable, would the vw vr6 be small enough or maybe the v5.
Ttfn Glenn
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Last Edit: Oct 26, 2017 19:25:12 GMT by 93fxdl
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fad
Posted a lot
Posts: 1,781
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Oct 26, 2017 19:48:16 GMT
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If a v6 is desirable, would the vw vr6 be small enough or maybe the v5. Ttfn Glenn V5 is what, 150bhp? Sound amazing but... Tough to tune. |
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sonus
Europe
Posts: 1,386
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Oct 27, 2017 17:48:37 GMT
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Rover KV6 or Alfa Busso V6?
Ford Zetec Sigma from a Puma?
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Current
1968 TVR VIXEN S1 V8 Prototype
2004 TVR T350C
2017 BMW 340i
Previous
BMW 325d E91LCI - sold
Alfa Romeo GTV - sold
Citroen AX GT - at the breakers
Ford Puma 1.7 - sold
Volvo V50 2.0d - sold
MGB GT - wrecked by fire
MG ZT 1.8T - sold
VW E-golf Electric - sold
Mini Countryman 1.6D -sold
Land Rover Discovery TD5 - sold
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Darkspeed
Club Retro Rides Member
Posts: 4,723
Club RR Member Number: 39
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Oct 27, 2017 18:54:27 GMT
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Toyota 2ZZ - 1.8 190BHP & six speed for good measure - Got to love 8000+
Ford Duratec - Take it to 2300 for some V6 style torque with plenty of revs and tuning potential
Zetec in ST170 variety plentyful and cheap
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Oct 31, 2017 17:02:00 GMT
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Thanks for the input guys.
I'd not really thought about Fords - apart from I know the Sigma 1.7 is only 150bhp ish.
KV6 - GTM did a version to fit this with a modded bulkhead so I know it won't fit.
Alfa, hmmm, maybe heavy, maybe too big but I'll take a look.
2ZZ I have a feeling will be ££££s but again, I'll take a looksee.
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'83 GTM Coupe. 4A-GE Powered
'00 GTM Libra Auto. Ick.
'71 Detomaso Pantera. Current Resto
'89 GMC Safari Tow/Kip bus
'05 SAAB 9-3 Daily
'71 Siva Moonbug. Not even contemplating resto yet.
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fad
Posted a lot
Posts: 1,781
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Oct 31, 2017 17:59:18 GMT
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Looking at pics... Would a Scooby flat 4 not fit? Lots of bang for buck there and very reliable. Plus when the go-slow-panzy-grandad-itis wears off you can tune it hard.
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Last Edit: Oct 31, 2017 18:01:00 GMT by fad
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Oct 31, 2017 22:53:36 GMT
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Scrooby definitely not, the trans would be hanging out of the back through irreplaceable bodywork.
The 2zz is a great call though. Since I last looked at them they've got a lot cheaper. With a bit of luck an mr2 gearchange will fit straight on it too.
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'83 GTM Coupe. 4A-GE Powered
'00 GTM Libra Auto. Ick.
'71 Detomaso Pantera. Current Resto
'89 GMC Safari Tow/Kip bus
'05 SAAB 9-3 Daily
'71 Siva Moonbug. Not even contemplating resto yet.
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the UK MR2 roadeter gearbox it has an factory LSD in there too (ATB type) currently conisdering fitting one od the diffs into my daily (corolla Tsport) whose gearbox has just sh@ itself.
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Take the Next slot right coming up on the left.
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rover 75 1.8 turbo k-series. keep the engine lineage & nanjing had sorted out the k-series by then.
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VAG 1.8T if you get the BAM or APX they come full forged from the factory.
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820
South East
Posts: 790
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rover 75 1.8 turbo k-series. keep the engine lineage & nanjing had sorted out the k-series by then. Pretty much what I would suggest but instead get one from the MG6, all the problems fixed with new block internal design, very light, 160hp standard, turbo tuneable and it will bolt straight in. |
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Midas
Part of things
Posts: 505
Club RR Member Number: 14
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I'm running a 160 VVC on a PG1 box in my Libra, it makes for a nice pokey and well balanced car with a very flat torque curve.
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Always fancied a Libra, I would say go for any of the engines that are alloy block rather than cast to keep the weight balance excellent. Near all 2l engines will pretty easily pull off 180bhp NA if you switch to a set of throttle bodies, Honda's better due to good RPM tolerance as stock but others aren't too hard to strengthen a bit for more RPM when sticking NA.
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Thanks for all the input guys. I think I've settled with a Toyota 2ZZ
Apart from one little niggle - the Mitsubishi 2.0 v6 from the FTO. In Mivec form the power figures appear quite impressive - but all reports on the net say they are really flat and not a good engine. Is this only because of the FTO chassis and weight or is there more to it?
Cheers.
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'83 GTM Coupe. 4A-GE Powered
'00 GTM Libra Auto. Ick.
'71 Detomaso Pantera. Current Resto
'89 GMC Safari Tow/Kip bus
'05 SAAB 9-3 Daily
'71 Siva Moonbug. Not even contemplating resto yet.
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fad
Posted a lot
Posts: 1,781
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Thanks for all the input guys. I think I've settled with a Toyota 2ZZ Apart from one little niggle - the Mitsubishi 2.0 v6 from the FTO. In Mivec form the power figures appear quite impressive - but all reports on the net say they are really flat and not a good engine. Is this only because of the FTO chassis and weight or is there more to it? Cheers. My mate Rob had one, FTO GPX. The engine on song sounded fantastic. I think the reason for the flat feeling is the noise doesn't match the take-off. It doesn't surge, but it does have a steady progression. Often folk mistake a lag and surge for power ("upgrading" a Beetle with a 009 chucking the vac advance in the bin and making the engine run worse and mistaking the timing coming right up the revs making the engine surge for power increase being a case point) I suspect if you saw a rolling road readout you would see a very flat and level graph compared with its peers (sort of the whole point of the second cam and the sudden change in note, I assume?). |
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ChasR
RR Helper
motivation
Posts: 10,199
Club RR Member Number: 170
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I'd go with the VVC K-Serie engine myself too.
As for the Clio engines the gearboxes are fine. It's abuse that kills them, which they don't take too well but many have lasted well into 100k without a hitch
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Copy the elise conversion there is a duratec to rover pg1 gearbox adaptor that makes it a proven route, the 2.3 has lots of potential if you want to tune it.
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Nov 18, 2017 17:04:25 GMT
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For me it's duratec all day, plenty of transverse gear box's available from mondeos or focus.
Will see 180whp on early engines and a bit more on later, engines are cheap and plentiful. I also have a set of dth throttle bodies for sale to suit
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Nov 30, 2017 12:45:45 GMT
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On a side note. Who gets an awesome little sports kit car like that then puts a dog turd of a engine and gearbox combo like that in it?  Honda Accord/Stream 2.0 155bhp, Accord 2.3 170bhp, Accord 2.4 204bhp, full donor transaxle. |
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Nissan Laurel SOLD  BMW E34 Diesel SOLD  Toyota Soarer 4.0 V8 SOLD Audi A4 1995 TDI SOLD Peugeot 205 1.9 TD SOLD Lexus IS300 SC |
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