Search results

I don't believe that the stroke is the major factor restricting the development of power from the F4r engine. The crank you mention seems an expensive way to go for unknown power returns. Developing a hi-output N/A engine is more than just simply bolting together several different parts from...

Think you need to start with deciding how much power you want to extract from the engine and then go from there. Does it need to be N/A as Engine Dynamics do a bolt on 240 bhp turbo kit for a std 172 engine for £2499. Seems like a cost-effective way to go to me.

182 head will go straight on. It's the 197 head that needs modifying to fit. You need to use the matching cam cover for the 182 head.

423s won't work with standard pistons, as the cutouts in the pistons are not large enough, so valves will hit them.

Hi, check the Omex relay /connections which you have to fit when installing the ECU. Similar issue drove me round the bend until I eventually discovered that this was the problem. PS it is a special relay as it switches two circuits I seem to recall, so a standard "looks the same" relay won't...

5503505 304°/295° - 267°/259° - 12.45mm/11.95mm - 4.65mm/4.15mm . They are full race spec camshafts and to correctly fit them the cam timing must be dialed in using vernier camshaft pulleys and as such you cannot not rely on the factory camshaft locking tool set up to install correctly. The...

Oil either gets in to cylinder passed the rings from the sump or down the valve guides. If plug is soaked in oil then unlikely to be valve guides. Check the compression on offending cylinder, could be a broken ring or excessive bore scoring/ wear.

Resprayed my Ford Anglia in 2K earlier in year in spruce green with white roof. Good few coats of primer were required and looking back I definitely didn't spend more than £250 on painting materials at my local supplier. So £500 estimate for materials should leave you with change. Most of...

https://www.mig-welding.co.uk/forum/ Good site for general welding advice / tips / etc

Ah, a good way to explore then and learn a new skill set. Always lots of cheap second hand "hobby" type mig welders about when you feel the need to have a go. Seems that a lot of people buy them then, finding its not as easy as it looks , and a bit of a steep learning curve a swell so they...

Stick welding not really practical for car repairs, more suited to steel fabricstion / site welding where thicker steel sections are used. Your first welds are unfortunately sat on top of the steel with no penetration. Mig / Tig welding is the way to go really for car stuff with mig being the...

Thanks for your reply and assistance. Currently car runs with electro/hydraulic system which works just fine, however, as the car is solely for sprints/hillclimbs thought while the car is stripped for rebuilding I would alter it to fully electric thus doing away with the potential for any...

Hi, interested in going down this route. Do you have any details of the wiring diagram for wiring in the epas ecu to a stand alone ecu? Cheers, Colin

Hi, where did you get your MEHA expansion tank from? (can't see a link) Cheers, Colin

Don't forget the 197 head is not just a straight swap as it need to be modified to work on a 172 block.

Refacing a flywheel for the first time to remove minor wear where you are removing a few thou of material would be extremely highly unlikely to cause any failure due to it adversely affecting the structural integrity of the flywheel. Can't see it causing a problem really. Off on a tangent. I...

An lot of clutch problems can actually be caused by "driver related" issues, rather than problems with the actual clutch itself. Not saying it is the case here, however, if a clutch is used without any "mechanical sympathy" or the wrong one fitted for its purpose then they don't like it.

Group N timing on its own will give a slight increase in bhp so every little helps as they say. I've seen some very optimistic claims for bhp increase due to fitting matched inlets. In reality don't think any minor increase gained (if any!) is worth the effort and cost. Then again its not my...

Search "torque settings" on this site, loads of relevant information available.

In an ideal world the head should be off to repair although you can actually successfully repair plug threads with the cylinder head in place if you know what you are doing, again not for the faint hearted or keyboard warriors. In the long term if using helicoils as the repair they can tend to...

Never used one, however looks pretty straightforward tool set up. PMS usually supply a decent set of guidance notes with bits of their kit.

Cheers

Thanks for the swift reply. Have used oil pump that I modified the pressure relief valve on in the past with good results pressure wise, will strip and check tolerances as well. Oil squirt jets have been removed / binned and I will fit new ones. Block was honed and checked out ok for...

Hi, Just building a high spec n/a F4R 172 engine for sprint competition use. In then past I have followed the school of thought of using race standard big end bearings and Renault OEM tanged main bearings which have always been fine with no issues arising. Race mains give a bigger crank to...

A normal diff makes going around corners somewhat easier due to the different rotational speeds of inner/ outer wheels. A car with a locked diff wants to more go straight on in a way. Gripper enables you also to get more drive through corner and get on the power a bit earlier.

Carefully consider useage before altering/ selecting different final drive ratio. Too short and first gear becomes almost non existent. Ideally you would want a longer first gear ratio, search other posts about this subject for more detailed info.

If you are going to use it on the road then Quaife (ATB type diff) is the one to go for as plated diffs are noisy / clunky at low speeds, so much so you would think there is something up with the transmission!! Gripper provides a “full lock” and is therefore much better for a track only based...

Also with this new set up can run the car low on fuel without any adverse issues, due to the additional swirl pot storage. Funnily enough never used to be an issue but only occurred earlier in the year when we put grippier tyres on car. The mysteries of motorsport, G forces in particular.

Had this issue even with new uprated fuel pump fitted. Didn't think initially down to fuel starvation due to original layout of in tank fuel pump set up. Tried filling tank to over half full - no different. Was ok on short bends on track but long sweeping ones a different story, was stuttering...

Cheers for information, the regs are certainly difficult to interpret at times. Funny isn't it as the roll centre mods help to align the suspension geometry back to standard in a way but can be deemed as illegal. Ah well onwards and upwards.