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Feb 11, 2019 13:47:54 GMT
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Nice to see this back, your cracking on at a good pace now, have you got its 1st outing booked yet? Yes, I am hoping to do the Brighton and Hove event at Goodwood in May, but definitely the double header on Epynt in June. And anything else as it comes along. |
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Apr 12, 2019 10:30:54 GMT
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A new engine for a new season! This one doesn't rev quite as well as the 1740 but much better than the 1700! So, quite pleased with the result. It could do with some extra revs, the car is on a 4.4 currently, but I'm thinking of dropping to a 4.7. But i need to wait until after Goodwood as that circuit is the longest i go to and have nearly topped out before on a 4.4 there so need to be careful if a drop to a 4.7. So the results:  Untitled by Nevtiger, on Flickr |
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Nov 14, 2019 18:07:19 GMT
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Quick update: I managed two events this year - long story due to ill father. Both were eventful in the car being a problem scenario..... I think i have sorted the issues but next year will see if i have or not. Interestingly though i have bought this  Untitled by Nevtiger, on Flickr The sharp eyed may notice this is an Aluminium head..... For an Avenger. It is now in Finland being appraised to see if we can make it flow as well or better than the Iron head. It only has to be 'As Good' for it to be a winner. |
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Last Edit: Apr 16, 2020 17:36:15 GMT by nevtiger
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Apr 16, 2020 10:32:22 GMT
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Not much happening with all events cancelled. However, work investigating the Aluminium head proved it would not flow any more than the Iron head and probably less due to the water jacket being to close to the inlet port right where the port needs to be modified. So  Untitled by Nevtiger, on Flickr Things to notice. This is not an Avenger or Sunbeam head. It doesn't fit, exactly, but notice it is very close. Investigation shows that it will fit with some minor machining work. Although this head is not going to be used it has the same face as a head that will be used. Why investigate an alternative? The OE head can be made to flow well but eventually it runs out of space and will stop the engine producing the required flow to allow the bottom end to really work. The alternative is the 16v BRM head. This really does produce the goods but it has to be bought as a complete engine and i can't afford the £27-30k price tag, much the same as a new BDA/BDG as it happens so not an unrealistic price. And it does produce 260 odd horse power. So if i could find a cylinder head that will fit the Avenger block and allow a significant increase in air flow potential then i might being to improve the engine on a budget i could afford. In Hillclimbing and Sprinting and non-Historic rallying it is perfectly acceptable to change the cylinder head or engine as the competitor sees fit. Calculations seem to suggest that i can build an engine that will fit within the capacity class and go North of 200hp. Not by far but it will be an appreciable increase and that will be a good thing! Anyone recognise the head? |
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Phil H
Posted a lot
Posts: 1,448
Club RR Member Number: 133
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Apr 16, 2020 10:55:00 GMT
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Aluminium, crossflow and pushrods with a Hemi head - Renault? Can't think of many with central spark plugs unless something really bonkers like half a Daimler V8?
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lebowski
Part of things
Hillman Avenger, Clan Clover
Posts: 488
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Apr 16, 2020 12:45:55 GMT
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I didn't realise the BRM engines were so pricey!
I'm guessing this is a Toyota head that some of the New Zealanders were playing with?
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Apr 16, 2020 15:45:46 GMT
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BRM's are indeed pricey - but its all new stuff with a limited market.
Renault? I had not thought of those!
And i didn't realise the Kiwis had been looking at the Yamaha casting actually. My lead came from Finland!!!!
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Davenger
Club Retro Rides Member
It's only metal
Posts: 7,272
Club RR Member Number: 140
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Apr 23, 2020 14:41:02 GMT
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So what head is it?
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An update: I didn't like the Brazil blocked engine in the end. So i sold it. I then bought another engine and have today putting it in...... Very Excited. Can you tell what it is?  Untitled by Nevtiger, on Flickr |
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Darkspeed
Club Retro Rides Member
Posts: 4,880
Club RR Member Number: 39
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Shall I be the party pooper and say Chysler BRM - and then do a weedy version of the HULK by turning green without any physical changes - You lucky man.
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Shall I be the party pooper and say Chysler BRM - and then do a weedy version of the HULK by turning green without any physical changes - You lucky man. Yep - lucky indeed. The stars aligned, the Blood Diamonds got sold, Kids are now indentured on a gold mine..... Fitted the clutch. The flywheel is a steel one and slightly heavier than my other steel flywheel. Which has UNF cloth cover holes. This flywheel is Metric. Cue mad panic and driving about here about trying find some one with Metric High Tensile bolts. I found some in the end:  Untitled by Nevtiger, on Flickr |
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lebowski
Part of things
Hillman Avenger, Clan Clover
Posts: 488
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Very nice! So is it a 'new' one or an old one? Show us some proper pictures. What's the bottom end? 1600 or 2 litre?
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Darkspeed
Club Retro Rides Member
Posts: 4,880
Club RR Member Number: 39
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45's or 48's hard to tell but not a lot left on the inside of the Misabs
That SuperClutch looks tiny on that Avenger fly - looks very different on my Rootes Radical Imp flywheel.
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I just watched a video of the Jondell BRM engine in an Avenger. It would be nice to see some of these beating the Escorts in the Historics, even though I own an Escort myself. Looking forward to some more pics.
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Very nice! So is it a 'new' one or an old one? Show us some proper pictures. What's the bottom end? 1600 or 2 litre? 'Almost' new. Its a 1600 or 1598 actually due to Historic rules. Not that its an issue with Hillclimbing/Sprints as they are mostly split at 1800! |
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45's or 48's hard to tell but not a lot left on the inside of the Misabs That SuperClutch looks tiny on that Avenger fly - looks very different on my Rootes Radical Imp flywheel. Those are Spanish Weber 45's. But are to be replaced by Heritage Throttle bodies, again 45's. Yeah, the clutch always looks a bit small on the flywheel but works well. |
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Engine is in and bolted up. A few issues have been discovered. The first is that the engine mounts have gone a bit soggy. They are a captive rubber bushed custom thing using Cosworth inner TCA bushes. So i have ordered some new Poly Bushes to sort that out. Fairly easy. Second. The brake cylinders are in the way of the Carbs....  Untitled by Nevtiger, on Flickr At the very least its going to have to be internal cylinders one way or the other. |
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lebowski
Part of things
Hillman Avenger, Clan Clover
Posts: 488
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It looks like it might fit if you remove the inlet manifold and attach the carbs first.
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Oct 30, 2020 10:03:39 GMT
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Meanwhile a good friend had asked for some help with a 'Project' he had bought. A ready to run motor he said....... Anyway, it had some 'mods' to fit the radiator in a different position. He looked at it and thought the standard part could fit. He wanted to get rid of this:  Untitled by Nevtiger, on Flickr  Untitled by Nevtiger, on Flickr  Untitled by Nevtiger, on Flickr What the actual F@CK!!!!! wow..... Anyway its now removed and the standard part actually fits, so go figure... |
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