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Checked the timing..............bottom pulley at TDC, Exhaust cam 1 tooth out and Inlet cam 90 degrees (sommat like 8 teeth) out! When turning over by hand there is piston to valve contact but only just. So i retimed it ( gonna change belt and tensions before i start it) and both cams seem to...

How important is it to have the matching cam cover? I've been offered a ph1 head minus the cam cover, will it be ok to put my cam cover on it or is it a risk i shouldn't take? cheers Daz

and cause zero compression on all cylinders?

yeah 422 catcams. surely with that cam and high comp pistons, if the cam timing was out, i'd have valve/piston contact?

Hi, I killed my engine at the weekend on a trackday, or so i thought I missed 3rd gear and possibly over reved. engine cut out and wouldn't restart, but turns over like the plugs are out. suspected no compression / bent valves. no compression confirmed by testing. Prepared myself for the...

My head is ported, i've got better than a dremel, air tools ftw! if i get a new one, that will be too

Whiteley half way through, then -JB- then -J- XhnrrMH0faI

More vids: f0xy e44Uk8-ULBc Gregg 4nWC3F6A-ck

I've got to take the head off to sort the valves and seeing as a set of valves will cost £250 from the stealers, a secondhand head is a much more cost effective option. Thank-you for explaining the bigger valves theory, makes sense now. Cheers Daz

So i take it a PH1 head will fit ok then?

Could you explain please, i thought bigger valves give more flow

is it possible to get bigger valves in the head?

yeah which i was told would be fine! Followers break at about 8.2k. I logged max revs at 7960. Obviously too much!

single iirc but double may go in depending on funds or i'm gonna have to lower the rev limit

I think you'll find you all copied me from the october trackday! Lol ;)

would it be an advantage to fit a ph1 head over a ph2 one then? On the track day i missed 3rd and may have bounced the valves. Double valve springs ftw. Won't know the real extent of the damage till i get it apart. Fitting a secondhand head will be cheaper than buying 16 valves

i think i may have killed all my valves and as i've got to replace them was wondering if there's any difference between the various heads eg valve sizes, ports, flow rates etc. Cheers daz

Re: Valver Track Car Project Thread It got so hot the expansion tank was shaking and boiling like a kettle!

Re: Mk1 172 Hybrid Track Car Project mmmm not that quick when you weren't driving f0xy! vJIMRSiid80 Seized valver FTW

Hybrib getting Valvered (not f0xy driving) vJIMRSiid80 Seized Valver FTW

Both Whiteley and -JB- getting all wobbly DVKGS8JJOEE

-JB- getting hounded b0S3BLZRsfU

Greg getting valvered: bKvvMrafyYU

Here's my few photos, video to follow: -JB- Taxi for one, please? The dead un's Whiteley's happy then See ya Finally get my Taxi Finally get home Speaks for itself! lol

Is that a dig? lol

Re: Valver Track Car Project Thread is that eventful or expensive? ;)

Re: Mk1 172 Hybrid Track Car Project I'll take some Sat, before he starts! lol

Re: Valver Track Car Project Thread Rig up racing strikes again. Better than bricktec

Re: Valver Track Car Project Thread 2.6 degrees

Re: Valver Track Car Project Thread Usually under own weight, take hub nut off and shaft should move in under pressure a bit.