Gt6s Posted February 23, 2016 Share Posted February 23, 2016 As title has anyone ever done this ? I have a V8 Rover engine and LT77 box lurking in workshop and was wondering if the LT77 box can be mated to my modded EFI 2.6 ? I do not want to fit the Rover engine Partially because exhausts and bonnet clearance for carb are both issues. The clutch arm cover will need to be cut off the bellhousing to clear chassis rail and a concentric slave cylinder will need to be fitted. THIS IS NOT THE PROBLEM ! The V8 Rover is similar size bellhousing and starter position is very similar. JUST WONDERING !Laurence Quote Link to comment Share on other sites More sharing options...
Clive Posted February 23, 2016 Share Posted February 23, 2016 There was a German, years and years ago I spoke to at Stafford who had done it. Think he was involved with Bastuk? PI spitfire IIRCProbably not much help, and my memory is too poor to remember any details. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted February 23, 2016 Share Posted February 23, 2016 There was a Vitesse Mk2, (possibly owned by a Steve Hilson?) that used to appear at the occasional south west hillclimb with a 2.5 and LT77. It went very well until he stuffed it into a tree (sideways) at Wiscombe Park. There used to be a video of the incident on YoutubeI had been talking to him before he stuffed it, but he point blank wouldn't tell me how he'd done it. All he would say was that it was entirely a parts-bin exercise with no special parts made or even modified. I've thought about this from time to time and my best guess is that it involves parts from the SD1 2300, 2600 or, less likely, the 2000. Finding the SD1 parts could be a challenge now.NickJust for laughs because I 'cause I found ithttps://www.youtube.com/watch?v=Knk4gV402Vs Quote Link to comment Share on other sites More sharing options...
don cook1 Posted February 23, 2016 Share Posted February 23, 2016 No 'tree-stuffing' incidents on that link Nick? Quote Link to comment Share on other sites More sharing options...
Mark Hammond Posted February 23, 2016 Share Posted February 23, 2016 It'll fit but why would you want to? LT77 horrible, heavy, clunky old 'box.M. Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted February 23, 2016 Share Posted February 23, 2016 Quoted from Don Cook No 'tree-stuffing' incidents on that link Nick? Nope.... can't find that video. The link I had for it is dead. The one I put up was one I found while looking to see if I could find it again which I thought might be appreciated by GT6 owners 😉Nick Quote Link to comment Share on other sites More sharing options...
RedRooster Posted February 23, 2016 Share Posted February 23, 2016 I was expecting it to stall or something. Quote Link to comment Share on other sites More sharing options...
stevegt6 Posted February 23, 2016 Share Posted February 23, 2016 Having driven a few Land Rovers with LT77's ....and to partially quote 'M' Quoted Text but why would you want to? LT77 horrible, heavy, clunky old 'box. Quote Link to comment Share on other sites More sharing options...
BiTurbo228 Posted February 24, 2016 Share Posted February 24, 2016 Quoted from Nick Jones There was a Vitesse Mk2, (possibly owned by a Steve Hilson?) that used to appear at the occasional south west hillclimb with a 2.5 and LT77. It went very well until he stuffed it into a tree (sideways) at Wiscombe Park. There used to be a video of the incident on YoutubeI had been talking to him before he stuffed it, but he point blank wouldn't tell me how he'd done it. All he would say was that it was entirely a parts-bin exercise with no special parts made or even modified. I've thought about this from time to time and my best guess is that it involves parts from the SD1 2300, 2600 or, less likely, the 2000. Finding the SD1 parts could be a challenge now.NickJust for laughs because I 'cause I found ithttps://www.youtube.com/watch?v=Knk4gV402Vs Hmmm, there's a possibility that they kept the same mounting bolt points for the 2300/2600 as the OHV Triumph 6 which it's (incredibly) loosely based on. Would be odd if they did, but definitely a possibility.I'll see if I can pull out my alloy rear plate and offer it up to the 2600 engine I have lying around. Would be interesting to find out, if only for curiosity's sake Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted February 24, 2016 Share Posted February 24, 2016 That would be most useful.I've got a free 2600 engine to go into my Mk1 Estate. Working at JLR, there are people here that worked on the SD1 all those years back, so hopefully they can tell me the tricks for getting more poke. I have been told that originally the 2600 six was more powerful than the 3.5L V8 so it had to be detuned... I've also heard the 2600 engine can be dreadfully unreliable... Quote Link to comment Share on other sites More sharing options...
Gt6s Posted February 24, 2016 Author Share Posted February 24, 2016 Quoted from Mark Hammond It'll fit but why would you want to? LT77 horrible, heavy, clunky old 'box.M. Firstly because I have it. secondly because current box is a 2500 S unit also described by some as a horrible heavy clunky old box. WITH HORIBLE RATIOS !There currently is a 2600 SD1 breaking on the bay of evil.Laurence Quote Link to comment Share on other sites More sharing options...
BiTurbo228 Posted February 24, 2016 Share Posted February 24, 2016 Quoted from Jonny-Jimbo That would be most useful.I've got a free 2600 engine to go into my Mk1 Estate. Working at JLR, there are people here that worked on the SD1 all those years back, so hopefully they can tell me the tricks for getting more poke. I have been told that originally the 2600 six was more powerful than the 3.5L V8 so it had to be detuned... I've also heard the 2600 engine can be dreadfully unreliable... That'd be brilliant if you can speak to people who might have experience with improving the output of them. I'm convinced that there's a ton of untapped potential in there but no-one seems to have tried it (and written about it on the internet at least). I do have it pegged at 151bhp @ 5250 and 160lb-ft @ 3800 before it was restricted but lord knows where I got that info from.Looking at chamber shape and valve sizes it should have more potential than the OHV 6. 42mm inlet valves as standard sound very nice apparently it's got a high quality crankshaft stock as well which should mitigate some of the issues with a 4-bearing bottom end. Oh, and on AROnline they talk about prototypes with an 82mm bore to make it a 3.0l pistons might be trickier to find though as they're a semi-Heron head.Issues I know of (only from reading about them mind you) are cams seizing in the head because the oil supply gets gunked up in a pressure relief valve between the block and the head. My thinking is just whip out the valve. Might burn a bit more oil, but that's less of a problem for older cars that don't need to pass emissions tests.I also gather there's no gasket between the head and the exhaust header which is a bloody stupid idea. Easily rectified though.Apologies for the thread drift... Quote Link to comment Share on other sites More sharing options...
Gt6s Posted February 24, 2016 Author Share Posted February 24, 2016 Quoted from BiTurbo228 I also gather there's no gasket between the head and the exhaust header which is a bloody stupid idea. Easily rectified though. The V8 I have had no exhaust manifold gaskets either.Laurence Quote Link to comment Share on other sites More sharing options...
BiTurbo228 Posted February 24, 2016 Share Posted February 24, 2016 Quoted from Gt6s The V8 I have had no exhaust manifold gaskets either.Laurence Curious. I wonder if it was simply a Leyland cost-cutting exercise or whether that was something that was done by other manufacturers at the time. Seems silly to have a cast iron manifold mating straight to an alloy head with differing thermal expansion rates.Oh, and incase anyone was wondering I weighed my 2600 I6 and it came to 196kg fully dressed. A little heavier than the 183kg Triumph OHV I6, but bigger dimensions will do that even with an alloy head... Quote Link to comment Share on other sites More sharing options...
esxefi Posted February 24, 2016 Share Posted February 24, 2016 Quoted from BiTurbo228 Seems silly to have a cast iron manifold mating straight to an alloy head with differing thermal expansion rates. don't worry nature will soon seal them together Quote Link to comment Share on other sites More sharing options...
Sheepy Posted February 24, 2016 Share Posted February 24, 2016 Quoted from Gt6s The V8 I have had no exhaust manifold gaskets either.Laurence It should have had! 🤔 Quote Link to comment Share on other sites More sharing options...
thescrapman Posted February 25, 2016 Share Posted February 25, 2016 Quoted from Gt6s The V8 I have had no exhaust manifold gaskets either.Laurence I wonder if the bloke that fitted th gaskets was on strike, or just couldn't be bothered to turn up and no one noticed Quote Link to comment Share on other sites More sharing options...
Richard B Posted February 26, 2016 Share Posted February 26, 2016 Quoted from BiTurbo228 I also gather there's no gasket between the head and the exhaust header which is a bloody stupid idea. Easily rectified though. Same as the Stag, although the TR7 has gaskets. Quote Link to comment Share on other sites More sharing options...
Beans Posted February 26, 2016 Share Posted February 26, 2016 Quoted from Richard B ... although the TR7 has gaskets ... Only the cars fitted with PI had exhaust gaskets. Quote Link to comment Share on other sites More sharing options...
BiTurbo228 Posted February 27, 2016 Share Posted February 27, 2016 Quoted from Beans Only the cars fitted with PI had exhaust gaskets. Huh. How odd. I wonder if it was a widespread thing or just BL cost-cutting... Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted February 27, 2016 Share Posted February 27, 2016 Possibly to ensure no air leaks as I'm guessing that the FI cars probably also had exhaust air pumps and possible even 1 way CAT as the reason for the FI was emissions control.Nick Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 25, 2016 Author Share Posted April 25, 2016 Update with pics hopefully ! Pics show modified 2300 / 2600 Rover bell housing to the Triumph six cylinder. Modification to Bell housing and the piece cut out. Also MOCK UP of the concentric clutch cylinder its mounting hub. As stated this is a mock up I still need to measure up distances to clutch diaphragm and machine the hub to suit. BTW the spouting bolts are all local hardware shop had WILL BE CHANGED !Laurence Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 25, 2016 Author Share Posted April 25, 2016 Sorry this is the mock up of the concentric cylinder and its hub.Laurence Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted April 25, 2016 Share Posted April 25, 2016 Looking good! Fairly straightforward then.........Nick Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 26, 2016 Author Share Posted April 26, 2016 Yes Nick once I got my head around mounting the cylinder and securing the hub. Still a bit of measuring and a little machining to do. But getting there.Laurence Quote Link to comment Share on other sites More sharing options...
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