1.8T valve cap failure... pictures.. Why? How? would this happen?

[ibizacupra]

1.8T valve cap failure... pictures.. Why? How? would this happen?

http://www.seatcupra.net/galle...17728

Not seen a failure like this before.
Not my car, but a friends leon race car I race against

thanks
bill

 

[DPJ]

Faulty casting, surely Bill?

 

[ibizacupra]

Hmm.. not sure.
turns out the valvegear on the car is all bog stock
Revs to 8K rpms, 440+bhp Leon Race car...

Its done a few races siince this CNC ported head was fitted no problem, developed a misfire and loss of power last race. Now he knows why.

Amazing his engine builder built up a race motor with std valves..

Known weakspot folks who read this. Beware!

 

[DPJ]

................turns out the valvegear on the car is all bog stock
Revs to 8K rpms, 440+bhp Leon Race car...

 

[ibizacupra]

yea I know.

 

[Saul]

standard valve had probably started to wobble over time and heated up the cap so it failed, whats the cap made from?

 

[ibizacupra]

dunno what its made from Saul..

on another note: whats the tightest 3" dairy fitting 90 degree bend and are there 180' bends also?

thanks

 

[Saul]

just curious, looks like some form of carbide.

3" 16swg is a 1D (76mm rad)

180s are available but no-one normally stocks them (never say never though)

usually just weld 2x 90s back to back, depends on the rad you are after

 

[ibizacupra]

rad is CLR one yea?
got some 3" bends from before sat here.. just trying to suss mounting of a new turbo onto a.n.other type of manifold... Evolution of the badger mobile

3" DP it will form

 

[Saul]

yup assuming you mean centre line radius?

will you ever stop evolving the badger mobile?

 

[ibizacupra]

yup assuming you mean centre line radius?

will you ever stop evolving the badger mobile?

yea CLR=centre line radius... cheers m8

and no, probably not.
embarking on a.n.other transmission @ the mo also... Different make. Fingers crossed.

ker-ching £ again!

New setup is slightly larger (physically) but should be similar flowrates to what I have had. (maybe a smidge more )
externally gated tho with Tial wastegate etc
New turbos arrived, going off tomorrow for its bearing upgrade before I use it.
Manifolds the next thing to sort. never bloody ending this tuning lark!

We will see where we end up.
May well slip into winter project as this is shaping up to be a big evolution step

 

[Saul]

you must be running out of garden space to keep planting those money trees

 

[ibizacupra]

psssst, wanna buy a dump valve?

 

[Saul]

its all about the spacers mate