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Solved the buggy's issues with the rotary...
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PostPosted: Thu Feb 07, 2013 1:46 am    Post subject: Solved the buggy's issues with the rotary...  Reply with quote





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simonp
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PostPosted: Thu Feb 07, 2013 9:04 am    Post subject: Reply with quote

So when you say solved you mean you've thrown it away and replaced it with a proper engine?
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PostPosted: Thu Feb 07, 2013 9:45 am    Post subject: Reply with quote

Supercharged S2K motor?
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him
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PostPosted: Thu Feb 07, 2013 9:47 am    Post subject: Reply with quote

I have got some hose clips going spare if you need them?


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PostPosted: Thu Feb 07, 2013 9:48 am    Post subject: Reply with quote

Saw the title of this and immediately thought of a baby’s  
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PostPosted: Thu Feb 07, 2013 11:11 am    Post subject: Reply with quote

Superchargers are undeniably cool.
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PostPosted: Thu Feb 07, 2013 1:17 pm    Post subject: Reply with quote

him wrote:
I have got some hose clips going spare if you need them?



Shoestring budget, we're gonna use gaffa tape and tie wraps instead.
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PostPosted: Thu Feb 07, 2013 1:18 pm    Post subject: Reply with quote

Blarno wrote:
Supercharged S2K motor?


Yep, 'charger is off the 4.2L Jag V8
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PostPosted: Thu Feb 07, 2013 7:15 pm    Post subject: Reply with quote

This is the rough initial aim:



There's a good 30bhp left in improvements to the intake boxes/pipework though, but it was a case of time was more of an issue than getting them perfect!

We built enough spare capacity in the system to push it to around 450-500bhp but I think the gearbox and drivetrain is going to struggle enough with 350bhp to be honest....
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PostPosted: Mon Feb 11, 2013 4:17 pm    Post subject: Reply with quote

Over-the-top spec sump guard:


Plus some V10 fun:



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PostPosted: Mon Feb 11, 2013 4:24 pm    Post subject: Reply with quote

^^^It needs lowering, it looks like a bloody off-roader!
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PostPosted: Mon Feb 11, 2013 4:27 pm    Post subject: Reply with quote

That's the setting for numpty drivers to stop them ripping the bumpers off when they get too, err, enthusiastic on steep stuff...
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PostPosted: Tue Feb 12, 2013 9:42 pm    Post subject: Reply with quote

Fair chunk more ground clearance this time, given the amount the engine has been moved forward/upwards/frame chopped/gearbox tilted:

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PostPosted: Wed Feb 13, 2013 12:12 am    Post subject: Reply with quote

^^^ Is the buggy set roughly level?
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PostPosted: Wed Feb 13, 2013 12:47 am    Post subject: Reply with quote

Slightly nose down - the part under the transaxle is about an inch higher at the back than where it meets the cab when the car is on the floor, it's not far off though, more like:

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PostPosted: Tue Feb 26, 2013 2:02 am    Post subject: Reply with quote

New dashboard, needs a little tidying up and a brushed finish after the instruments are in but basically done:





And the only place Ed could find big enough for the airbox...







Will be drawing from the main airbox fed through the roof initially, just for simplicity and time saving - but at some point will probably have it's own feed from the side intakes.
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PostPosted: Sat Mar 16, 2013 3:42 am    Post subject: Reply with quote

More shiny bits.





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PostPosted: Sat Jun 08, 2013 12:04 am    Post subject: Reply with quote

Bit of inlet manifold modification with a set of old injectors off the RX-8...






Fuel shortage? What fuel shortage? :D

You know how I said the dry sump tank had to go in a really bad place because there was nowhere else for it?
Well, here's praying we don't get too much of a love-tap up the arse:



Ed had fun making it though:



And the worst part of all builds, just when you think you're nearly done, stripdown time!

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PostPosted: Sat Jun 08, 2013 8:49 am    Post subject: Reply with quote

What gearbox are you using?
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PostPosted: Sat Jun 08, 2013 1:57 pm    Post subject: Reply with quote

Still that old clonky Renault Master van gearbox.

Everyone knows white van man is the fastest thing on the road, so we borrowed his gearbox.
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PostPosted: Sat Jun 08, 2013 2:05 pm    Post subject: Reply with quote

Well, it was good enough for the Lotus Esprit for however many centuries....

By the way, do you need any Peugeot bits? I'm breaking a 206...
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PostPosted: Sat Jun 08, 2013 2:12 pm    Post subject: Reply with quote

It's not quite the same box, the van one has a much bigger diff with a 4-spider centre and wider gears. Unfortunatly, wider gears means the synchromesh is sloped steeper so the gearchange times are pretty damned slow.
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PostPosted: Sat Jun 08, 2013 3:47 pm    Post subject: Reply with quote

Mockup of the new rear suspension...I reckon that ought to cope with some bumps, eh?



Second set of injectors plumbed in:



Fairies were called in while I sat on a beach with a beer last week , apparently they do panelwork, who knew?




Those paneling fairies also make oil and water header tanks to fit in tight spaces, nice of them:





As you can guess from the header tank locations, space is getting pretty tight now, and there's still some more plumbing and fibreglass/ally heatshielding to go in yet, you don't even want to see it with the dampers and some panels on.....



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PostPosted: Sat Jun 08, 2013 6:58 pm    Post subject: Reply with quote

Is the program you used to spec the engine Automation?
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Blarno
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PostPosted: Sat Jun 08, 2013 7:11 pm    Post subject: Reply with quote

That alternator pushrod adjuster is awfully close to that tank!
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PostPosted: Sat Jun 08, 2013 7:19 pm    Post subject: Reply with quote

Matt wrote:
Is the program you used to spec the engine Automation?


Yeah, beta tester's version, just to give a rough idea of the dyno plot.
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PostPosted: Sun Jun 09, 2013 6:52 pm    Post subject: Reply with quote

Bit of framework to make it easier to shape the rear bonnet/scoops, yeah, you know how I said the engine bay was quite tightly packed? :D



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PostPosted: Sun Jun 09, 2013 9:09 pm    Post subject: Reply with quote

I'm awaiting it to go gold. I've used the engine demo but I wasn't too good at it.
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PostPosted: Sun Jun 09, 2013 9:23 pm    Post subject: Reply with quote

Haha, it's actually pretty accurate apart from at the extremes of engines (really small (1L ish) and high revving, 13L long stroked turbocharged, etc.), even then it's not too far out.
Didn't spec the engine off it, but it's nice to use to give you a rough idea for people to see what you're aiming for.
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PostPosted: Mon Jun 10, 2013 11:12 pm    Post subject: Reply with quote

Spaghetti junction time this week:

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PostPosted: Wed Jun 19, 2013 8:54 pm    Post subject: Reply with quote

Shiny Shiny Shiny Shiny Shiny....






Much more fun than wiring anyway.
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him
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PostPosted: Wed Jun 19, 2013 8:55 pm    Post subject: Reply with quote

^^^ Ooooh, I like shiny things...

...it will be a shame to get them muddy!
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PostPosted: Wed Jun 19, 2013 9:44 pm    Post subject: Reply with quote

It may be a shame, but it'll definately be fun...
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PostPosted: Sun Jul 07, 2013 12:58 pm    Post subject: Reply with quote

New rear discs:

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PostPosted: Sun Jul 07, 2013 9:11 pm    Post subject: Reply with quote

Getting there with the rear arms, Ed finished a jig and tacked up one side just to double check clearances:



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PostPosted: Fri Jan 10, 2014 7:14 pm    Post subject: Reply with quote

Well, the new arm revealed one stumbling block after being cycled - the existing rear geometry gave massive toe change with the extra travel we were intent on using, and nothing beneficial either. After hearing Ed swearing about it for a while I had a look and decided to just re-do the mounting points on the car and make another new arm - I've been wanting to alter some of the rear geometery for a while, so there's really no better time than when you're making a new arm.
We've removed a little of the rear camber change, and lifted the outer pivot to help with the toe curve, which now has about half the previous toe change over the travel and what is there is helping rather than hindering now. As a side bonus that brings the anti squat up a little closer to where I'd like it, and lowers the rear roll centre which should help with a little more traction/grip.
Cheap and cheerful jig to swap the pivot location over to the other side of the car, nothing fancy but it works:



And on with the new, new arms:



It's actually made the area for transmitting load around the bumpstops and damper mounts much neater so they should end up a little lighter too, added bonus!






Oh and we're back in the proper workshops at last, look a real floor, my knees might survive until I'm 30 now!
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PostPosted: Fri Jan 10, 2014 10:07 pm    Post subject: Reply with quote

I have said it before, but it will be a shame to get that muddy!
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PostPosted: Fri Jan 10, 2014 10:10 pm    Post subject: Reply with quote

him wrote:
I have said it before, but it will be a shame to get that muddy!


Might be a shame, but it'll be a lot of fun getting it muddy
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PostPosted: Fri Jan 10, 2014 10:12 pm    Post subject: Reply with quote

Will that be soon?
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PostPosted: Fri Jan 10, 2014 10:16 pm    Post subject: Reply with quote

About 4/6 weeks I think, waiting on the driveshafts to arrive, rear bonnet needs fabricating, and need to finish the chassis wiring and rebuild the dampers, then it's mapping time.

Speaking of dampers...take one lovely shiny working thing:



Ooops, I, err, it wasn't me, a strange bloke broke it and ran off.



Then there was an incident involving a pillar drill butchering some finely machined components, a tap, some deburrers and some extra parts. I didn't take a photo of those because of their graphic nature to anyone of a petrolheaded persuasion.

Anyway, it all got back to being shiny after some TLC and some T-cut, and I think all the important bits went back in. I'm sure it'll fine.
That bit that pinged off into the corner didn't look vital.



Hoping to use it as part of an interlinked passive hydraulics system.
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PostPosted: Fri Jan 10, 2014 10:58 pm    Post subject: Reply with quote

How do the driveshafts cope with that kind of approach angle into the hub?
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Spiderpuncher - A seedy trip into electro industrial madness.

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PostPosted: Fri Jan 10, 2014 11:05 pm    Post subject: Reply with quote

They could be using double cardan joints?
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PostPosted: Fri Jan 10, 2014 11:58 pm    Post subject: Reply with quote

I think you need some Lego Technic bits.
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PostPosted: Sat Jan 11, 2014 12:00 am    Post subject: Reply with quote

I am loving all the fabrication.  Great stuff.
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PostPosted: Sat Jan 11, 2014 12:08 am    Post subject: Reply with quote

TreVoR wrote:
I am loving all the fabrication.  Great stuff.


Hope it's being rust proofed.  
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PostPosted: Sat Jan 11, 2014 12:16 am    Post subject: Reply with quote

I hope the TVR doesn't take this long!  
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PostPosted: Sat Jan 11, 2014 12:17 am    Post subject: Reply with quote

Roadsterstu wrote:
TreVoR wrote:
I am loving all the fabrication.  Great stuff.


Hope it's being rust proofed.  


Don't go there!  
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PostPosted: Sat Jan 11, 2014 12:50 am    Post subject: Reply with quote

Blarno wrote:
How do the driveshafts cope with that kind of approach angle into the hub?


We run forged chromoly cages and stars, which being much stronger than stock, allows us to machine out one side for clearance on the shaft and run the balls right to the end of the track. The balls themselves are 0.001" undersized to give additional clearance and less plunge resistance.
Plunge is a big issue for us, the driveshafts are designed to have the majority of the twist in the area between the splines, so the splines themselves can be lengthened and slightly clearanced so they slide through the stars to give the required movement.

No signs of rust on the frame I'm pleased to report, even the beam that's 30 odd years old and been racing in the desert, on the beach, in streams and knee deep in Welsh mud. We know how to paint this side of the Pennines
The T45 tube is a little more corrosion resistant than the mild steel TVR used too.

I hope the TVR doesn't take this long, we had a workshop move, house moves and two break-ins to slow us down last year!
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PostPosted: Sat Jan 11, 2014 1:08 am    Post subject: Reply with quote

Should have it back by the second week in Feb at the latest.  
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PostPosted: Sat Jan 11, 2014 9:06 am    Post subject: Reply with quote

I wish I had the time and enthuiasm to tackle something like that again but having had a divorce on the back of a Mallock and Westfield and virtually living in the garage, I am now living the happily married down trodden husband's life!

There  really is something about nicely machined and shiny parts that only a man can appreciate.


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