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I looked at that and thought of wallace an Grommit where the sidecar goes it's own way!
Some very strange thinking has gone into this, It should be a vast improvement when finished, I'd als be lloing at adding a diagonal brace to the large open expanse in tbe area to the side of the engine compartment behind the front axle.
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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I looked at that and thought of wallace an Grommit where the sidecar goes it's own way! Some very strange thinking has gone into this, It should be a vast improvement when finished, I'd als be lloing at adding a diagonal brace to the large open expanse in tbe area to the side of the engine compartment behind the front axle. - Not quite that bad - But far from best practice If you mean another diagonal inside the existing outer diagonal - It's not that simple. On the O/S there is a steering column that will probably be in the way, and on the N/S an Exhaust manifold. First two done - I jacked the chassis apart to make to make a couple of verticals parallel - They are probably not from the factory! I also had a think about adding a couple of lower diagonals - in effect extending two lower members. On running a couple of lines to see where the tubes would intersect with the front cross tube they were not nicely geometric - So out with the tape. Different angles different intersection - but just seems to coincide with it being 1" out which probably beans that someone measured to the back side of a section for one tube and the front side for the other..... I think extending them would be good all the same as would adding a Westy/Caterham upper diagonal under the area of the carbs. They should not get in the way of anything A picture that also shows dropping additional side triangulations is not as simple as it first appears . Packaging is pretty tight in these things even with a little X-flow.
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it's the area behind the front suspension that look ripe for improvement, with the mods you have done you have a nicely braced stiff area around the front suspension, then very little to feed the loads back into the trans tunnel, the one diagonal there is goes to the middle of the tube going to the outer structure and ends in the middle of a tube which will flex fairly easily, if you could get a diagonal from corner to corner around the exhaust it would make a big difference.
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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I am not convinced it would make a "big" difference - The beam strength will be okay it's not mid point in a long span - The issue is with the entire design and the lack of any real triangulation throughout the frame - there is none down the trans tunnel. If not careful it would end up like my G27 chassis - One of those **where do you stop. Adding a 3/4" diagonals here may be just about possible - Its something I had considered previously - but see reasoning above** They may create issues whilst trying to solve a problem that isn't there. The gaps are there for practical reasons - depending on what engines are fitted the exhausts need to go through there or the battery needs to fit through. I will be fitting a much smaller race battery and the exhaust I have is a bit rubbish and may just miss a diagonal if I fit one..... may.
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Last Edit: Nov 5, 2023 23:00:45 GMT by Darkspeed
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 11, 2023 18:39:00 GMT
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After giving the garage a tidy up, making some work space and putting stuff out of the way, I cleaned up some bits of chassis tube that had been cut off of the Red Gem and prepped them ready for welding into Blue Gem. First off the final lower chassis lateral tube. Then the two lower diagonal extension tubes. Also cut a couple of blanking squares - You will just have to use your imagination for those. Tacked in diagonals- Mostly welded lateral - Fully welded closing squares - Fully welded diagonals - And messing about to see if the exhaust would miss a couple of additional diagonals And yes there is clearance - I could even fit 1" SQ diagonals that would probably look more like they were originally meant to be there. I will see if I can find any more Red Gem off cuts.
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 12, 2023 18:36:36 GMT
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Another day, well, half a day as I didn't start till after lunch and then called it job done when it got dark. I did manage to find some more Red Gem discards - Trans tunnel and dash rail. They needed a few rivet holes welding up but I am getting quite used to that now. First job was a little reinforcing fillet at a lower chassis joint. After that was making the diagonals to keep kevins happy - It does look better with them and if it looks right..... but that's it. We now have the outer rails all triangulated - front to back and top and bottom in the engine bay Welded up another 30+ rivet holes and easily have another 20 to do. The lateral lower members also had the welds completed. The final job of the day was marking up a template for the inner panels and making another chassis lateral connector for the trans tunnel which will go just below the dash rail lateral
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Last Edit: Nov 12, 2023 18:40:20 GMT by Darkspeed
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Nov 12, 2023 18:50:33 GMT
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looking great, with the mountings in the right place and all the stiffening actions it should drive much better.
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Nov 12, 2023 20:56:45 GMT
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I'm glad you've reinforced that lower chassis joint. I figured you'd do something, but it was looking like a weak point that needed sorting.
Oh, also, on a complete tangent. Can you remember if the K75 throttle bodies you flowbenched were 34mm bore all the way through, or did they start 35mm and neck in to 34mm? I've picked up a set and they're measuring as 35mm so might be K1000 bodies, but I don't have a micrometer long enough to get more than 5mm into the bore.
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 12, 2023 21:19:55 GMT
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I'm glad you've reinforced that lower chassis joint. I figured you'd do something, but it was looking like a weak point that needed sorting. And I am also thinking of adding another on the other side - (Other side of the same tube - not on the other side of the car) - completely OTT as they do not fail there but it looks wrong. The Triple set are Triumph 955i - The BMW set are K1 / K1000 - I cannot recall what the K1000 butterfly size was but a quick search for K1000 in the bench thread = forum.retro-rides.org/thread/204100/flowbench-thread?q=k1000
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Last Edit: Nov 12, 2023 21:28:37 GMT by Darkspeed
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 12, 2023 21:57:44 GMT
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On the flowbench thread about the crossflow engine I posted Why do you think the flow peaked before full lift? Waisted valve stems getting into the unwasted part maybe? That's all I can think of, but I'm hardly an expert. Valves are not waisted - The Ford GT valves are pretty cheap and nasty shape wise - This is after a fair bit of work - As this is budget upgrade it was £32 on valves rather than £160 This is what you start with Yes well... After the testing and the work that is going into this head I am about to order full set of REC valves.... so much for the budget.... This one sold today - nice spec Ford 711m xflow engine *+90 thou 1300 pistons *244 cam *Twin Dellorto 40 twin choke side draft carbs *K+N air filters *Lucas high performance ignition system *Cherry Bomb exhaust 5 speed, Caterham, type 9 gearbox Original Techdel Minilite 13" alloys (12-79-SM, 6JKx13CH 20L) Yokohama A539's Fitted tonneau cover Useable boot space
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 13, 2023 21:01:44 GMT
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Managed another couple of hours this evening welding, a bit warmer as well today, still double figures. I put in a small dash lateral - This serves two roles - One, It further stiffens the chassis. Two, It provides a land for the tunnel top panel to close onto. More rivet holes were filled, another 30 or so, including the ones along the tunnel backbone as the variations in spacing had my OCD twitching. It was while looking at those that the decision was made to add yet another lateral between the backbone top tubes, and it was during the welding in of that one it was decided to add a couple of verticals to the body mid mount lateral tube, tying it to the tunnel and adding some much needed support. On the drivers side this will come in handy when I start designing the pedal box and its support structure. For those weightwatchers. Side diagonals Lower diagonals Small upper laterals Scuttle verticals 1520mm of tubing - 1.7Kg Add to that the 520g of the plates and lower laterals and its had 2.2Kg added thus far. Better look for something to drill holes in....
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 14, 2023 20:56:14 GMT
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Had to really push myself to get out there and keep up the momentum today. I must be expecting to keep this going for some time to come.... I had not ordered any material for some considerable time and they sent me a 25% off welcome back voucher just at the right time. All in I have have five chassis' to do and a lot of this is for G15's. So. today was rolling the chassis over a couple of times to complete welds on the sections done yesterday, a couple of tube end caps, a few more rivet holes, the other side of the OTT reinforcement and a look at a possible pedal arrangement. After completing this I stepped back and thought - Hmmmmm the other side that looked perfectly adequate before, now looks weak.... And oh how I wish the original builder had not splashed out for powder coat. This is the worst, but its even full of rust under the coating on the interior tubes... Pattern for the pedal arrangement This work will be x2 as another will be needed for Red Gem
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Last Edit: Nov 14, 2023 20:58:20 GMT by Darkspeed
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 15, 2023 20:18:55 GMT
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It took some will power to get out into the garage this evening and for 2 hours of work I have one grainy photo of the rear suspension reinforcing plate. It was a bit chilly out there 6C and dropping but welding that in was not the only task completed. Another tube was closed off - just two more to do. The upper shocker brackets were rounded off, - part of the upper bracket works - as was the Panhard bracket. A couple of no longer required mounting holes were also filled and a few rivet welds ground flat. As this car will also get an alloy tank at some stage as the steel one must weight the best part of 15KG empty I may trade some of that weight loss for adding a couple of tubes to triangulate the rear structure.
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Nov 16, 2023 11:01:41 GMT
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Dichloromethane dissolves powder coat like thinners dissolves cellulose - fyi.
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Nov 16, 2023 11:25:37 GMT
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one of these has popped up for sale www.facebook.com/marketplace/item/1267616387258626/£7.5k less is more with that front number plate !! Gemini, kit car 1993, Correctly registered as a Gemini. 1650cc Ford crossflow engine. Aluminium radiator. Gemini autotune a remake of the Falcon shells, Elva cars reintroduced by Autotune in the 80s. This example is very smart in British Racing Green- it's gelcoat, so no paint to flake or scratch etc, very shiny and presentable. The chassis is space frame and is galvanized so no rust anywhere. 12 months mot and ready to use, feels like a 50s race car to drive and is very fast to on acceleration from its 1650cc ford crossflow engine in such a light car. great alternative to an MGB or Spitfire. Full weather equipment included, including windscreen which is mg midget. but really to enjoy it's better with roof off aero-screen on! Previous owner 20 years, many new parts and well maintained. 12 months mot, ready to use. No blind offers thank you, please view and discuss, anytime by appointment. See less
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mylittletony
Posted a lot
Posts: 2,347
Club RR Member Number: 84
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Nov 16, 2023 11:37:47 GMT
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I knew I recognised that - I was looking at it before my Fairlane sold so didn't have the funds ready. But I would have kept it rather than flipped it for double... ebay ad
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Nov 16, 2023 11:52:11 GMT
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I knew I recognised that - I was looking at it before my Fairlane sold so didn't have the funds ready. But I would have kept it rather than flipped it for double... ebay adi’ve noticed quite a few specialist cars getting flipped in the last year whilst searching for one of my own. some sit there for months at a good price unsold the flipper buys them hardly touches them and they sell for £2k more … it’s very odd how they sit unsold cheaper i’m going to rush out and buy some vinyl roundels as they add £3.5k to the asking price 🤣🤣🤣🤣👍
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Last Edit: Nov 16, 2023 11:54:49 GMT by redratbike
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 16, 2023 17:39:47 GMT
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Dichloromethane dissolves powder coat like thinners dissolves cellulose - fyi. No need for going to those lengths as it just falls off - the powerfile acting a simple powdercoataflickaroffa before getting into the slightly more than just surface rust. I knew I recognised that - I was looking at it before my Fairlane sold so didn't have the funds ready. But I would have kept it rather than flipped it for double... ebay adi’ve noticed quite a few specialist cars getting flipped in the last year whilst searching for one of my own. some sit there for months at a good price unsold the flipper buys them hardly touches them and they sell for £2k more … it’s very odd how they sit unsold cheaper i’m going to rush out and buy some vinyl roundels as they add £3.5k to the asking price 🤣🤣🤣🤣👍 Yes well - someone saw what they thought was an opportunity to make a quick buck. As it stood it was reasonably priced - All it really needed was a better set of wheels and a tidy through. That screen is naff but I do like the roadster look
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Darkspeed
Club Retro Rides Member
Posts: 4,706
Club RR Member Number: 39
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Nov 17, 2023 19:37:01 GMT
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Had a long day at the coal face yesterday so no garage work happened, and even though I was more in the mood to get on with things this evening I decided to just chill out instead.
Then dug at Too much pressure to listen to. One of the lesser known tracks
Which I think will have the soundtrack sorted for work tomorrow
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teaboy
Posted a lot
Make tea, not war.
Posts: 1,949
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Nov 17, 2023 23:10:07 GMT
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this evening I decided to just chill out instead. Don't blame you, I did too.
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