My mk2 Rally car - Duratec power

[Barn]

Re: My mk2 Rally car - Duratec power

No mate

Dunlops are not for me anymore, i run Michelin and Hancook now.

But yes, i did run the CR311 and ran them at those pressures hot.

[JonSegger]

Re: My mk2 Rally car - Duratec power

No mate

Dunlops are not for me anymore, i run Michelin and Hancook now.

But yes, i did run the CR311 and ran them at those pressures hot.

That's great. Cheers.

How do you find the Hancooks in comparison to Dunlops? I think they're a bit cheaper aren't they?

[Barn]

Re: My mk2 Rally car - Duratec power

That's great. Cheers.

How do you find the Hancooks in comparison to Dunlops? I think they're a bit cheaper aren't they?

After i di my setup on the Fiesta (RWD) we went out at MIRA on the new Hankook W50 inters. We had so much grip that we bent the panhard rod into a banana

Definately as good as the Dunlops IMHO

[JonSegger]

Re: My mk2 Rally car - Duratec power

Time for an update...

We finally got the new front discs - they needed a little machining to fit. The exhaust has been ceramic coated and I've also fitted new strengthened steering arms.

The old discs were cracked:


Newly coated exhaust:


Plus a bit more heat protection around the inner wing and throttle cables:


New steering arms:


Work in progress:






New discs:




And a few posing shots:






We then took it for a test drive. The exhaust collector was blowing, so I need to take the headers off again and wipe a little exhaust paste around the joints. We then need to set up the front suspension/steering geometry and corner weights. Hopefully we'll get this done before the Woodbridge track day on 9th August and then its on to the Richard Burns Memorial Rally on the 15th/16th at RAF Marham.

[dobuy]

Re: My mk2 Rally car - Duratec power

Cracks in the old discs look scary

[muckerbarry]

Re: My mk2 Rally car - Duratec power

Hi Jon,

What are the disks off of and what size are they?
i'd be interested in your old alleycats if you'd be interested in sending them to Ireland!

Alan.

[JonSegger]

Re: My mk2 Rally car - Duratec power

Cracks in the old discs look scary

Yeah, I didn't want to risk having them shatter going into a corner - that could be nasty.

[JonSegger]

Re: My mk2 Rally car - Duratec power

Hi Jon,

What are the disks off of and what size are they?
i'd be interested in your old alleycats if you'd be interested in sending them to Ireland!

Alan.

They're Tarox G88, BMW E30 ones - 260mm. They just fit under 13" wheels. They needed re-drilling and machining for the Ford hubs.

I have 5 AlleyCats. 4 of them match and the other has a slightly different centre, but is fine for a spare. I suspect carriage would be pricey though..? I'll have to weigh them and then get some prices.

[muckerbarry]

Re: My mk2 Rally car - Duratec power

i need 8 inch wheels not 7 inch, if their 8 inches coud you get a shipping price for me thanks.

alan.

[JonSegger]

Re: My mk2 Rally car - Duratec power

i need 8 inch wheels not 7 inch, if their 8 inches coud you get a shipping price for me thanks.

alan.

Ah, sorry - the AlleyCats are 7x13s.

[muckerbarry]

Re: My mk2 Rally car - Duratec power

Bummer, thanks anyway!

[Wessie]

Re: My mk2 Rally car - Duratec power

having a similar problem with the exhaust on the 2.5 ! the bonnet cant be raised up anymore so looks like the exhaust needs to be coated. paul dunnels a top bloke and i even mentioned i knew of your car when we picked the engine up from his sounds like you two are good mates

[JonSegger]

Re: My mk2 Rally car - Duratec power

having a similar problem with the exhaust on the 2.5 ! the bonnet cant be raised up anymore so looks like the exhaust needs to be coated. paul dunnels a top bloke and i even mentioned i knew of your car when we picked the engine up from his sounds like you two are good mates

Ah yes, Paul is a great bloke and is very clever. Your 2.5 sounds like an awesome engine. Have you had it running yet? Where's the pics?

The exhaust is tricky. The coating looks pretty and I'm sure it has done some good in bringing the temperature down, but it still feels pretty hot in the engine bay. The aluminium heat shielding that I put under the bonnet has stopped the fibreglass getting too hot so far though. The other option will be to tank cut a few holes in the bonnet or fit vents to let a little more heat out.

[Wessie]

Re: My mk2 Rally car - Duratec power

Ah yes, Paul is a great bloke and is very clever. Your 2.5 sounds like an awesome engine. Have you had it running yet? Where's the pics?

The exhaust is tricky. The coating looks pretty and I'm sure it has done some good in bringing the temperature down, but it still feels pretty hot in the engine bay. The aluminium heat shielding that I put under the bonnet has stopped the fibreglass getting too hot so far though. The other option will be to tank cut a few holes in the bonnet or fit vents to let a little more heat out.

its scared the owner so much, he doesnt want to take it into the forest anymore ! it is a brilliant engine and just pulls and pulls its already got huge brakes put on but i think proflex and wider rubber is next on the shopping list so the power can be put down properly dukes stages and the blackhorse rally (both in the IOM) will be the only events the car will do this year so it will be great to watch it driven in anger
some bonnet bulges have been ordered to try and save the bonnet from warping

and pics will be up soon good luck on the rest of your events

[JonSegger]

Re: My mk2 Rally car - Duratec power

So time for an update...

We spent some time a couple of weeks ago setting up the caster, camber and tracking. We got it set to 3 degrees caster, 1.5 degrees camber and zero toe-in.

Then, yesterday, we did a track day at Woodbridge. It was great fun, the car was absolutely flying . The main aim was to check everything was OK ahead of the Richard Burns Rally, this coming weekend.

We experimented with different tyre pressures, trying to overcome the bad tyre wear problems we'd had before on the fronts. Taking the temperatures across the surface of the tyre, we were getting a fairly consistent reading . The insides were a degree or two hotter, but I guess thats to be expected with the camber.

The tyres did still wear a bit on the outside edge though and it was still pushing on and understeering a little. You can see from the pics that the tyres were rolling quite a bit - and yet these are on 8" rims, so they're the right size for the tyres.





We were running the Dunlop CR311s and tried various pressures - between 21 psi and 28 psi, but it didn't seem to make a massive difference. I think its better than it was, but still not quite right. It was also lifting the inside front wheel quite a bit - which of course is going to increase the load and wear on the outside front. Maybe stiffer rear springs are required..? They're currently 200lb I think.

Anyway, the rest of the pics from the trackday can be found here: http://picasaweb.google.com/jon.segg...eat=directlink