sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 30, 2015 10:48:52 GMT
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Rover P6 3.5 L V8sowen
@sowen
Club Retro Rides Member 24
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Normally when trying to get more power out of the 3.5 people take it out, throw it away to drop a 3.9 or 4.6 in You'd probably get the best lumpy exhaust note from uneven manifolds and true twin exhausts, but it won't be as loud or chest rumbling deep as a larger capacity lump. As for a showpiece, the bare engine can be made to look pretty, then depends on if you like the look of twin SU's, 4 barrel carb or efi? Or just get a larger iron block V8?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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For me I guess some of the reasons is we're so used to the more seasoned/professional photographers taking really nice shots of the cars and waiting for them to upload, edit etc then throw up a large album to view. Also, Shelsley is vast, it takes so long to walk from one end to the other, add in ice creams, chatting to people, sheltering from rain, rushing to the hill, my camera tends to stay in my pocket and get very little use In fact I personally took more photos of that mental Saturday evening storm cloud than I did of the cars on all three days!
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Thanks!sowen
@sowen
Club Retro Rides Member 24
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Aug 25, 2015 18:28:41 GMT
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A big thanks from me for making another memorable show Campsite was fantastic, all staff (security and RR) were fantastic, show was fantastic, weather was less than fantastic on the day but Friday/Saturday were fantastic! And most of all the people were fantastic, great to bump into old friends, make new friends and have random chats with all manner of strangers! All in all it was fantastic Already can't wait for RRG'16
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Last Edit: Aug 25, 2015 18:29:24 GMT by sowen
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 25, 2015 18:20:37 GMT
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As the others have said, sounded awesome in the flesh, and I'm amazed how well it was idling and revving Megasquirt is dead easy niwid, you should've said something as I had everything there for some campsite tuning on my SD1
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 23, 2015 21:44:46 GMT
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Truck wash/tfr, washing-up liquid, white spirit, petrol, diesel, thinners, screwdriver/paintscraper etc
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Saab B2X4 turbo enginessowen
@sowen
Club Retro Rides Member 24
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Aug 19, 2015 14:07:27 GMT
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Just read that, thanks I like how most of the 'bad' points of the upgrades for big power will need to be addressed for a rwd conversion and my installation! So if the engine is as capable as people claim then maybe 400bhp would be readily achievable?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Saab B2X4 turbo enginessowen
@sowen
Club Retro Rides Member 24
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Aug 18, 2015 22:17:54 GMT
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My mind is wandering yet again, this time to the Saab 9000 era B204 and B234 engines. I've read and heard they have a reputation for quite impressive power outputs on stock internals, around the 400-450bhp region. Do they really deserve that reputation, and how easy is it to get there? I'm thinking of maybe dropping one into my Rover P6, so rwd and Megasquirt
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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So far the standard headgasket with ARP headstuds has been holding without issue on 10.2:1CR. From my research the O-series pistons require skimming the top edge off the pistons, the block machining down to match, and a head skim, even then the CR I believe is crazy low, 8:1 or something?
The reason I started this thread is I pressurised the crankcase and blew one of the camshaft seals out, dumping half the oil over the belts and sprayed it everywhere! As per the other suggestions I've started making a new seperator/catch can and will weld a new port in below oil level so that oil can drain back un-pressurised.
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 16, 2015 21:49:43 GMT
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The M16 is basically the same as a T16 but without the turbo. It is designed to run at much lower pMax pressures than the T16. The T16 itself has a reputation for blowing head gaskets so boosting an M16 above what it was designed to take may well be forcing combustion pressure past the head gasket into the oil ways and pressurising the sump via the drain from the cylinder head. The white smoke from the exhaust suggests that water is getting into the combustion chambers too, all pointing towards either a cracked head or head gasket issue. If it were forcing oil into the combustion chamber that had collected in the intercooler the smoke would be blue. If you have blown the head gasket make sure you replace it with a genuine Klinger gasket as these are recognised to be the best available for this engine (or at least the T16 version). I'm certain it's oil, the water level in the header tank is stable. The smoke is mostly white, with a bit of blue, hard to tell in the small rear view mirrors. I'm sure I've read the original M16 Tickford turbo was far superior to the T16 factory turbo, only difference in my setup I believe are the pistons, so maybe it's time to fit a decompression plate and see if dropping the combustion chamber pressures helps reduce the issues?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 16, 2015 17:04:47 GMT
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So you have something like this ChasR ? This is the schematic I've based my breather system on: The difference with my Rover engine to the Nissan engine is it has two 3/4" ports on the crankcase for breathers, one either side. Both of these are piped into a small catch tank which has a small 10mm pipe going to the intake pre-turbo. Before I piped it into the intake it blew oil all over the inner wing, but since putting the pipe on hasn't obviously had any significant oil flow through it. On the other side I have a single port off one rocker cover through a Saab pcv valve then through a brake servo one way valve. I haven't taken the inlet manifold off recently to see how much oil is inside there, that's a job for later. What I could do is fit another pipe from the second rocker cover as in the Nissan schematic and route that into the seperator aswell? Also, make a new seperator/catch tank that mimics the Bailey tank (budget is tight and I have metal) and try again?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 16, 2015 16:33:14 GMT
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I've had a little break and have a slightly clearer mind now!
Forgot to add the engine oil pressure is around 60psi, I suspect this could be a major contributing factor?
Oil drain is 1" diameter and as near straight as straight can get. The fitting into the sump is a 30mm elbow, and sits above the oil level.
I'm also wondering if in my experimentation I've managed to fill the bottom of the intercooler with some oil, and when it warms up it's sucking it through? I had it off recently and drained a little out, but since changing the turbo the intake pre-intercooler is perfectly dry.
Maybe I should try a large catch tank? I had one of those little ones and it used to fill up with milky water, so I'd really want some form of seperator that naturally drains back into the sump.
Maybe a wing off the side of the sump below oil level that would let unpressurised oil drain back down from a large seperator/catch tank without crankcase pressure blowing it back up could work?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 16, 2015 13:22:31 GMT
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On my Rover P6 with a later Rover M16 twincam n/a lump and turbo I've got issues with the crankcase pressurising and throwing oil out of the breathers and white smoke out of the exhaust. I've tried copying a schematic of a Nissan SR20 which has the rocker breather piped via a one-way pcv valve to the inlet manifold after the throttle, and the crankcase attached to a canister/seperator the piped into the intake between the air filter and turbo. I still get some impressive clouds of smoke out the back usually when it warms up and given full throttle. Last night I re-checked the pipe from the seperator to the intake and that was clean, no oil. There was a little oil in the hose from the rocker cover to the pcv valve.
Any ideas/suggestions?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 15, 2015 11:11:07 GMT
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The posts above plus has it had the rear checked for camber or toe alignment (which isn not normally part of "alignment" checks. I had mine 4 wheel aligned at a local specialist after fitting a set of -30/40mm springs and a few bushes, they had a right job adjusting the rear and it still sits with a little negative camber on the back, tyres seem to wear ok.
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 15, 2015 11:02:30 GMT
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I've been doing a little more research on exhaust manifolds and turbo's. The manifold I made to fit the T25 was quickly thrown together to get the engine to fit int he bay of the P6, all done before the engine was fitted so I really didn't know properly how much space was available. Now I've just fitted the overly big Garrett T04 with twin scroll exhaust housing, I can really feel the engine is more responsive over the T25 in the low-mid rpm range. Obviously the way in which I've bolted the big Garrett on is a temporary bodge to see if it's the way forward, so now I'm looking forward Doing a bit of digging, apparently joining cylinders 1+4 and 2+3 into a divided T3 flange should help spool up the twin scroll turbo I'm now in the position where I can take very specific dimensions of the head to turbo flanges and the space available allowing for reaching in to actually fit it and other related maintenance jobs, and hopefully make a much better flowing manifold
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 14, 2015 19:10:47 GMT
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I probably get 20-30k miles to a set of tyres on mine mostly motorway and fast A/B roads.
Has it been 4 wheel aligned at a decent reputable specialist? Is you dad a closet street racer? Have you tried looking on the ZT/75 club forum for anything similar?
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 14, 2015 18:39:25 GMT
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Love that shot, the way you can read part of Garrett, anyway you can rotate it a few degrees so you can see the whole name ... Just needs the bolts on the back of the compressor slackening off and it would tap round. I really wasn't thinking about that when I was making the mounting parts and the intake hoses, should be enough space around the outlet elbow to let it move a touch more round... I did a little reading on the different colour springs available in aftermarket BOV's, got confused and put the stiffest spring that came with my valve in, went out for a test drive and it made about 5psi! I will check the external wastegate next to see if that's working correctly or not, I could be losing pressure through that? Interestingly on another forum I've seen reference to a Holset HY35 fitted to a Rover T series engine that was making 25psi, something to aim for
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Aug 14, 2015 18:20:45 GMT
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yes, Yes and thrice YES!!! I'm shocked how that was being used as a parts donor, it looks too good for that? Love the V8 Love the wheels Love the plans
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sowen
Club Retro Rides Member
Posts: 2,245
Club RR Member Number: 24
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Cruisin' for a bruisin'!sowen
@sowen
Club Retro Rides Member 24
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Aug 14, 2015 18:07:35 GMT
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There used to be a very nice event held at the Blue Lias pub in Warwickshire. Only once a year, but they'd have hundreds of classics, retros and customs turn up. It was a very pleasant way to spend a summers evening and raise a few bob for charity. Then the cockwombles started turning up. Two or three years ago, some helmet in a Lotus Elise nailed it over a blind humpback bridge, straight into the end of a Triumph Stag when leaving the event. The following year some knobjockey Yoof decided to do a one wheel burnout as his 'exit piece' in his Paxo 1.2. Unfortunately when his wheel stopped spinning and got traction, it was still on lefthand lock and he ploughed straight into some spectators, before driving off. The event was then cancelled indefinitely There was a nice name&shame video that appeared on Youtube shortly after Interestingly another group seems to have resurrected the Blue Lias meet back on Monday evening this week. I haven't seen any reports of dickish behavior on FB, but that's hardly the most accurate source of info!
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Last Edit: Aug 14, 2015 18:08:21 GMT by sowen
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