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700/900 Series General Forum for the Volvo 740, 760, 780, 940, 960 & S/V90 cars |
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Steering wheel judderViews : 1730 Replies : 26Users Viewing This Thread : |
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Jul 25th, 2019, 13:27 | #21 | |
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First, thanks for pointing out the Sunbeam Lotus indeed had a different engine - many people as i've already said referred to the 1600Ti as the Lotus Sunbeam - wrongly of course! Now we get into a real grey area littered with landmines and other nasties to trip us up! The Sunbeam used a Lotus Type 911 engine, loosely related to but not the same as a Vauxhall slant four : https://en.wikipedia.org/wiki/Lotus_900_series#Type_911 The reason i say "not the same as" is because the slant four they were using at the time was the 1973cc unit from the FD Victor and Viva GT of the time. Chrysler wanted a bigger displacement so the Lotus block was used with a longer stroke among other things. The head was the 4 valve/cylinder twin cam unit developed by Lotus and used the Lotus designed block. The original Chevette HS engine used the 2279cc Vauxhall slant four block with the Lotus 16v twin cam head., this was the Type 904. https://en.wikipedia.org/wiki/Lotus_900_series#Type_904 However, FISA changed the homologation rules in 1978 and the Lotus head was no longer eligible for use on Vauxhalls slant four block so Vauxhall used their own 16v head originally destined for the road version of the Chevette and the HSR (Rally) version had an uprated version of it. As far as i know, Bill Blydenstein designed the Vauxhall 16v head and different cam configurations with different carbs gave very different power outputs. The Lotus block was designed and built by Lotus from the start back in 1964 and the Vauxhall slant four was only used as a test mule by Lotus for their own 16v twin cam head, although this combination spawned the original Chevette HS version. The Sunbeam Lotus used the Lotus designed block and head so was more true to being a Lotus variant than say the Lotus Carlton that used the Vauxhall/Opel 3.0 CIH engine as a starting block even though it ended up as a 3.6, 24v, twin-turbo brute. The last slant four i had was a post-76 2279cc unit (so had the refinements/improvements to give 108bhp and 138bhp on single or twin Strombergs respectively as standard) but i had a trick head, cam, inlet and carbs on it. From what i remember (bought the top end set up from an outfit in Hunstanton called EPD) the head etc was a Blydenstein affair, big valves, gas-flowed, high compression, port-matched to the gas-flowed inlet manifold with brand new Strombergs jetted to suit. The engine this little lot came from was dyno'd at about 240-250bhp (Can't remember the exact figure now, it was 30+ years ago) and the only real differences between my engine and that one was that one had a blueprinted bottom end and a four branch exhaust manifold (that was already sold or i would have had that too!) so the estimate of what my engine was producing with this lot on was about 200-210bhp. I know i could get the speedo needle back to 0 on the VX after fitting it and a tricked out Sierra XR4x4 with disco lights and go-faster stripes couldn't catch me - i left him going uphill while he was on the flat! Found out a few days later from the brother (a work colleague) of the driver of said Sierra that the Sierra was flat out at 145mph on the flat and i lost him uphill. After that i'm pleading the 5th!
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Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........ Last edited by Laird Scooby; Jul 25th, 2019 at 13:32. Reason: Typos and words in the wrong placs! |
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Jul 28th, 2019, 19:00 | #22 | |
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The Blydenstein heads came in 3 stages of tune and would probably generate about 140BHP in Stage 3 tune but Blydenstein wanted low-end torque and flexibility rather than a rev-till-it drops screamer. There were also a few fuel-injected lumps fitted into Cavalier Mk1 coupes that the development team used to outrun the 3-litre Capris around Luton in the late 70s.
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loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4. |
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Jul 29th, 2019, 03:45 | #23 |
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The Gospel According to St Patrick d'Haynes
Chpt.2 Verses 3 - 7
And so verily it is that, wherever three or more car enthusiasts will be gathered, there will be discussion. And the discussion shall begin with a specific request for information, or perhaps a statement of fact proposed by the lesser of the enthusiasts in standing. Verily, the discussion will proceed in a somewhat orderly manner with occasional confusion and regular apocryphal interjections, yea until the Older Wise Man will recollect a vehicle of entirely different provenance and marque. Thereunto a story of woe and increasing dispair will be told, spanning months, nay even years, and much begatting of corrective solutions will be encountered encompassing all manner of makes and models except that reference will always be made to that most lowly of vehicles, the Cortina. The Wise Old Man will be gently corrected as his wisdom is that of an elderly gent fitted with glasses of the rose tint variety. Nonetheless many pints will be spilt in the course of the parable being recounted, and in the case of the parable being shared in the electronic scriptures, legions of electrons will be deployed and pages will pass without reference to the OP. For thus it is written. |
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Jul 29th, 2019, 04:53 | #24 |
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Something wrong on Steering gear
Hi
I am new member I hope someone could give me an idea what could be the problem on my XC60 2014 FWD. Anytime I turned the steering wheel to left or right, something hit the firewall 2 or 3 times and even it could be felt on carpet against the firewall (placing your left foot at the wall). I sent my wife´s car to the Volvo´s dealer and they replaced the steering wheel gear but the problem still there. Now they believe it could be something from the Steering column. Thanks God my car is still under warranty. By common sense, I do not believe it could be the steering column due to hit its felt in front of the driver, against the firewall and nothing in steering wheel. I will appreciate any suggestion. Regards. |
Jul 29th, 2019, 07:03 | #25 |
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Beto18
You’d be better off posting in the XC60 section of the forum 👍 Cheers
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Jul 29th, 2019, 09:56 | #26 | |
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Diferent sources?
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loki_the_glt - Skipper of the Exxon Valdez, driver of Sweden's finest sporting saloon - and pining for another Slant-4. |
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Jul 29th, 2019, 10:37 | #27 | |
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P.S. The discussion needs only one person who just at least knows.... the word car, to be a quorate enthusiast coven .... they become the wise olde man (wom) .... that's ok .... but .... The....CORTINA !!!!!!!!!!!!!!!!!!!!!!!!!!!!! EEK !!!!!!!!!!!!!!!!!!!!!!!!! . |
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