Well - got the locost.

"SteveH" wrote ;

I dont know to be honest, I would have thought the engineering and design going into them would be slightly better espeicially the 'newer' and 'performance' models.

Complete crap, the guys 'engineers' doing the R&D into these kits know what they are doing and say its safe (or they wouldnt drive/race them themselves) I've beleive thousands who use them and say they rock than one grumpy old git like yourself.

Why dont Sierra 1.6L's hit 60 then? The time it takes to get to 60 has nothing to do with it when the car weighs 1/3 of the donor vehicle. Oh by the way a Seven - Rep with a Bike engine hits 60 in under 4 seconds.

Oh right, been to one recently? Its not all rusty old Alfa's these days.

Oh right.

Yes. Done it.

Yes. Done it.

Absolutely f*ck all, but seeing as I will be buying a chasis pre-welded, for £700 with powder coating at an extra £180(ish) I dont need to.

Dont worry, I know someone whose been a mechanic for 40 years I think he just *might* beable to help. Apart from the fact the parts I need are rock solid items something would have to be seriously wrong for them to be no good.

Dont worry, I know someone whose been a mechanic for 40 years I think he just *might* beable to help.

Dont worry, I know someone whose been a mechanic for 40 years I think he just *might* beable to help.

You're not doing too well here, and I see you havent read the sites I have posted for your information. I will be buying a chasis pre-welded, for £680 with powder coating at an extra £180(ish) so I dont need to.

You never saw the car, so again you're talking about something you know f*ck all about.

Steven.

'fraid not.

Ok, the pinto engine was the same and the 4 speed box in the poverty spec models was the same, but front suspension was totally different and the cortina had a live axle whereas the sierra had semi trailing arm IRS.

"Bob Sherunckle" wrote ;

I notice a trend here, SteveH just shut up, you're wrong on every count....

Steve.

Wrong about the amount of bits the Sierra and Cortina share, yes. But right about your total numptyness in the field of spannering.

I await the finished product. But won't hold my breath.

Prove me wrong.

Just so you know, the brakes would be perfectly ok because all they have to do is achieve enough frictional force to lock the wheels up in the dry. There's no point in producing more force than that because they wheels will still be no more than locked.

For a trackday car, as opposed to a road car, you would want to upgrade the brakes so that they could do a lot more braking in a relatively short period of time. That's all down to getting rid of more heat.

A lap around, say, Silverstone has 16 corners (on the GP circuit, suitable for bikes and cars although not normally at the same time), in three miles. It takes maybe two minutes or so per lap, so you are emergency braking about every ten seconds on average. This is quite unlike a road car where you brake maybe a few times an hour. Harsh braking every corner means the brakes will get far, far hotter than on roads.

And race spec kit can get much hotter than road kit, and obviously a disc that is hotter, will radiate away more heat. To achieve this you need pads and fluid that can handle higher temperatures, the downside is the brakes won't tend to work too well until they've warmed up.

A better solution for your budget is to build a kit that provides plenty of airflow to the Sierra disks. That way, they will cool down while going along and hopefully you won't need higher temperature fluid, etc. But they'll work ok from cold.

You would do well to vented discs for the hubs, I daresay someone makes suitable ones. If the challenge is one lap, you can probably manage on stock kit, but vented work fine on roads and are pretty reasonably on tracks too, so it's a painless upgrade.

Realistically, the 0-60 time is irrelevant as the 60-0 time is defined in terms of the tyre grip rather than the brakes, which basically need to be strong enough to get the maximum out of your tyres. The grip from the tyres is not going to be much different with the reduced mass of the car, but the work done by the brakes will be reduced pro rata, so on a road car, you've uprated the brakes by 100% just by halving the mass of the car.

In case yer interested, anyway. :)

Don't know about the 1.6, but 2l Sierras have vented discs - It's one of the TDC approved mods to replace the flimsy Triumph solids.

Very well put, and saved me from posting along the same lines, as you've done a much better job than I would have! :)