Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
The reason why the rears would need to be stiffer than the fronts is due to the motion ratio. The original rear spring position is a lever with a ratio of around 2:1, so the 250lb rear springs are actually only 125lb as that's what the wheel see's due to this lever ratio. If it's a coilover rear...
I find there's near enough zero idiots on TF at the 'ring these days mate, so please don't let that put you off. Even driving round the 'ring at slow speeds is enjoyable. That way you get to experience the sheer pace at which some cars come past you and disappear off into the distance! It still...
Do you have any pictures of the pressure regulator? You might be able to get away with giving it a little crush in a vice to increase the fuel pressure. Sounds crude - which it is, but they used to do it all the time on the vauxhall let motor running eds management.
Re: 'Cub's Trackday Flamer - Cage etc'
There may be a possible solution to your requirements mate. Doubt anymore rc kits will be done though unless there's substantial interest.
I'll be definitely taking a ring trip next year mate, as long as my wife's not in the pudding club! Lol! We are...
Custom cages cage is extremely close fitting in certain areas Tom, so you will have to modify certain trim and almost definitely remove the headlining.
Ktec do them don't they? Failing that get a focus zetec one and adapt it to fit. They bolt on so it hangs the coilpack over the end of the inlet cam, which is the same as the ktec one.
you need to check your steering rack bushes mate as if they're worn it will allow the steering rack to move, and even just a small amount of movement adds up to a big difference. Also worthwhile checking your steering arms for play. Jack it up one wheel at a time, hold the wheel in the 3-9 o...
The top picture is correct. The bottom picture looks like an Ast top cap. They usually come with a spacer and bearing. Or at least mine did when I bought the Ast top mounts.
I wouldn't worry too much about the change in direction for the airflow. It will make near as damn it no difference mate. Look at the original inlet - restrictive and a change of direction, yet still they make the numbers with a suitable cam/piston package.
Do a google image search for R3 exhaust manifold mate and you'll see what I'm getting at. It looks night and day different to the original 197 manifold. It's a proper race spec bit of kit. So is the pms one.
I think you'd struggle to fit the R3 manifold mate due to space confinements. They're a 4-2-1 with really long primaries and they don't look like they follow the same path as a 1*2 manifold. They're serious £££££ to buy as well unfortunately. Possibly your best option is to buy a 2nd hand 197...
Correct, you would have to re-drill the block to suit the jc5 pattern. Cam followers are an issue over 8k or if the engine spends majority of its time in the upper rpm (you say yours is a race engine so I imagine this to be the case). I've heard of them breaking and also flipping off the...
Exhaust ports on the majority of f4r's is small mate other than the ph1 172 from what I've seen. They all have the same size valves though in the 2ltr range.