FFG 549D Rally car

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moose
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Re: FFG 549D Rally car

Post by moose » Sun Feb 07, 2016 7:41 am

thanks for the comments.

Not sure what i am going to be doing this year i think it may be a year of shows rather than competing in a championship. Imp is in bodyshop having a tidy up we have re-built the loom to incorporate the mods i did to the cooling fan arrangement as the prototype worked so well it is now being installed. the front rad has had a re-furb, a thorough clean and inspection and it will be good to go again, the Andy Jones of Shrigley engineering upgrade to the engine is going to have to wait.
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moose
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Re: FFG 549D Rally car

Post by moose » Wed Sep 21, 2016 4:08 pm

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Re: FFG 549D Rally car

Post by moose » Wed Sep 21, 2016 4:12 pm

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moose
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Re: FFG 549D Rally car

Post by moose » Mon Oct 17, 2016 12:29 pm

Image



thanks to Scott clement for this (just found the link again) Saltire 2015
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Re: FFG 549D Rally car

Post by moose » Mon Feb 13, 2017 8:35 am

ignition system used on FFG is expensive but ultra reliable and producing good power, i never even reset the points gasp all season!

MSD 8222 epoxy filled coil mounted inside car and vertical (although this type of coil can be mounted any which way up) it is inside the car to keep it cool as due to the way a coil works they generate heat the hotter a coil gets the less well it performs so i thought why have it in the engine bay to be pre-warmed? i had tried many lucas sports coils but found these were giving an intermittent missfire this was detected by the tacho needle not giving a steady reading at idle and the engine sounding like it had a slight miss at idle, and when going flat out sometimes we could rev to 9K sometimes only to 7K with a feeling of a rev limiter being applied. So the lucas went and the MSD was fitted idle smoother tacho needle steady and rev to what ever you want 10 K plus coils don't like heat and vibration and require a good quality cooling oil and high copper content windings to work properly back in the day when lucas parts were made to british quality the sports coils was a good improvement over what the factory fitted but now i really wouldn't bother with them.

Distributor is a 43D with a baseplate adapter to take cooper S points (32 oz spring allowing 10 K rpm) this is because the cooper s points were only ever manufactured to fit the 23/25 D dizzy (i.e. early imp) the 43d is the vacuum less later type dizzy with a screw in base plate. The advance curve was set by Andy jones of Shrigley engineering when the engine was on his dyno having his special cam dialled in. I have fitted a high quality bolt on side exit cap (side exit so the plug leads run straight and shortest route to the plugs also looks neat), it is bolted on to stop the cap from oscillating at high revs and altering the timing plus it stops the rotor arm contacting the inside of the cap. The rotor arm is a british made high quality item that has the correct amount of insulation material in it (the expensive part of a rotor arm) this copes with the increased spark from the high output coil.

condensor is a capacitor (as they all are) that i have researched and found an epoxy filled capacitor of the correct rating, epoxy filled as the rubbish you can buy now have internals contain ing thin alluminium sheets around an insulating paper all of cheap quality and the NOS ones i have cut open the paper like insulation material is so old it is crumbling. Capacitors don't like heat (they can generate enough of their own) they don't like vibration especially old and poor quality ones so for belt and braces approach i mount mine on short wire tails and fit them at the coil end of the circuit away fro mthe heat and vibration of the engine.

the plug leads are bespoke made for me by a company that supplies formula one and BTTC teams they are a very good quality item.

Spark plugs are NGK iridium as i think ordinary NGK plugs are not made in japan any more to the correct quality but their iridium and race range are. I tried Denso but had three failures one on Geoff taylors engine at test circuit and two on mine during road testing (maybe i was unlucky)

the cost of all this is quite high but given the cost of entering a rally and all that entails i would happily pay for reliability any day

but roughly

side exit cap £15
plug leads £70
Plugs £48
Coil £70
Condensor £35
rotor arm £6
Points £15
base plate adapter £45
Regards Moose
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Re: FFG 549D Rally car

Post by moose » Tue May 29, 2018 12:50 pm

Build pictures are back make s the thread a bit more interesting
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Re: FFG 549D Rally car

Post by moose » Fri Aug 10, 2018 12:04 pm

Updates coming soon as i re-assemble the imp ready to get back on the road, cannot believe 3 years has passed since i last competed.
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Re: FFG 549D Rally car

Post by moose » Fri Oct 18, 2019 3:11 pm

just been having a think about all the parts i have developed for my rally car and can supply to people.

Stronger clutch fork with roller release bearing
Hydraulic Handbrake
Brake shoes that work
Improved gear linkage system X 2 types
UJ conversion for Gear linkage
Bias Pedal box
High performance clutches several types
Billet Gearbox centre casing
Shell strengthening plate kits
Wishbone strengthening plates
Steering arm kit with polyurethane bushes
Gearbox mounts
Polyurethane engine mount
Viva billet aluminium hubs, Billet Caliper brackets, Aluminium calipers, Stainless steel centre caps.
Billet Steering rack mounts
Long stud conversion for imp hubs
Stainless steel link pipes for works type across the back silencer
Works specification dampers and my tweaked versions depending on use
Points based reliable ignition system.
Uprated bolts for donuts.
Last edited by moose on Sat Oct 19, 2019 11:22 am, edited 1 time in total.
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617sqn
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Re: FFG 549D Rally car

Post by 617sqn » Fri Oct 18, 2019 3:39 pm

Keep at it, Mike. We need geezers like you ! 8)
👍🏻😎

Andy G
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moose
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Re: FFG 549D Rally car

Post by moose » Fri Oct 18, 2019 4:50 pm

Cheers Andy. Forgot to add new Brake drums !
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617sqn
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Re: FFG 549D Rally car

Post by 617sqn » Fri Oct 18, 2019 5:50 pm

Your list puts my rear hatch stays, stainless pivot pins and two special tools to shame. :lol: :lol:

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Re: FFG 549D Rally car

Post by bazzateer » Fri Oct 18, 2019 7:54 pm

617sqn wrote:
Fri Oct 18, 2019 5:50 pm
Your list puts my rear hatch stays, stainless pivot pins and two special tools to shame. :lol: :lol:

Andy G
Don't forget your rubber washers for the plugs Andy!
If I told you I was a pathological liar, would you believe me?
Barry Blackmore - Chiltern ACO, apparently.......................
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617sqn
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Re: FFG 549D Rally car

Post by 617sqn » Fri Oct 18, 2019 8:08 pm

Silicone, Baz. Silicone..... :D

Andy G
Last edited by 617sqn on Sat Oct 19, 2019 7:31 am, edited 1 time in total.
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RoyBlunt
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Re: FFG 549D Rally car

Post by RoyBlunt » Fri Oct 18, 2019 8:50 pm

That would be a very interesting item Andy! I think that you meant silicone... :)
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617sqn
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Re: FFG 549D Rally car

Post by 617sqn » Sat Oct 19, 2019 7:30 am

I did Roy :lol: Typed the way I say it. Nearly forgot I sorted the odd vinyl-cut sticker too, in particular the Happy 50th one in gold. Still a way to go to catch up with Moose ! :D

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oli
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Re: FFG 549D Rally car

Post by oli » Sat Oct 19, 2019 5:11 pm

Price list?
moose
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Re: FFG 549D Rally car

Post by moose » Sun Oct 20, 2019 9:09 am

Not there yet with any costs, lots of testing to be done after i have identified the parts and bought them, it will probably be like most of the things i have developed for the rally car. Most people will say it is too expensive and high performance for their road car but the first rule of motorsport developed parts is reliability. Worse case is i have an expensive pump for my rally car that is more efficient and will last if on the back of that i create something that is viable cost wise for every imp i will let everyone know.
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Re: FFG 549D Rally car

Post by moose » Sun Nov 03, 2019 9:08 am

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Re: FFG 549D Rally car

Post by Teddie2003 » Tue Nov 05, 2019 8:14 pm

Great set of pics showing various mods.

One question "Next are the two types of donut available beware the round tube type!"

I always thought that the round tubes were the original Lotus style that was then changed to the twin plate insert type.

Is "beware of the round tube", due to the age that these donuts would now be or something else?
moose
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Re: FFG 549D Rally car

Post by moose » Wed Nov 06, 2019 8:33 am

The only ones i have had fail on competition cars are the round tube type. The failure mode is the rubber falling apart. The type with the plates have only let go due to being cut because driveshafts not radiused, standard bolts failing, high tensile allen bolts bending the driveshaft on the legs around the mounting holes so it gets shaken to bits.
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Re: FFG 549D Rally car

Post by Teddie2003 » Fri Nov 08, 2019 9:34 pm

Oh I understand what you mean now.

Must be showing how long I'd been using the comp donuts.

As I remember the original ones I started using in the mid-80's that I bought from Hartwell's, as having the solid tubes with the interleaf plates and then they changed them a few years later to the split section type with the interleaf plates that you refer to.

Never used ones without the plates on a tuned engine as your picture shows how good(not) they can be.

I always used to radius of the drive shafts from my first Imp, as my dad had worked the main Rootes dealer and that was something they used to do whenever a car came in for replacement donuts.
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