Cylinder head confusion - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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jay.jay

Member

Registered: 28th Dec 10
Location: Gloucestershire
User status: Offline

21st Feb 13 at 10:33

Right, I had a "refurbed" ported and polished head on my x16xe that seems to have leaking valve stem seals. So I swapped it for the head on my old x14xe for the time being so that I can re lap the valves etc on the x16xe head. Now my problem is, since fitting the x14xe head (which has 8 burnt out exhaust valves lol) the car seems to pull a lot better and top end is more responsive too

can some one explain to me what the hell has happened? Whilst changing the heads over I wrapped the manifold and put a new standard FPR too, but surely that wouldn't make a difference?

I'm yet to check over the x16xe head but if someone can shed some light on what might have caused this supposedly "refurbished" head to be so crap that will be great

Jed D

Member

Registered: 15th Mar 11
Location: Durham
User status: Offline

21st Feb 13 at 14:07

i always thought the 14xe and 16xe heads where the same tbh... maybe you've raised the compression?

daine

Premium Member

Registered: 28th Feb 07
Location: rossington
User status: Offline

21st Feb 13 at 23:23

They are the same Jed, same cam's too

jay.jay

Member

Registered: 28th Dec 10
Location: Gloucestershire
User status: Offline

22nd Feb 13 at 11:34

Ah right ok, I always thought they were different haha how could sticking a standard head back on improve performance over a head that's had some work done to it?

Jed D

Member

Registered: 15th Mar 11
Location: Durham
User status: Offline

22nd Feb 13 at 12:01

cos the work may not have been done properly maybe?

jay.jay

Member

Registered: 28th Dec 10
Location: Gloucestershire
User status: Offline

22nd Feb 13 at 12:49

That's what I'm thinking

reckon it could be cause it wasn't mapped?

daine

Premium Member

Registered: 28th Feb 07
Location: rossington
User status: Offline

23rd Feb 13 at 12:54

Wright mate! with out checking the heads side by side, the first one ported and polished will be the better head, just get the stem seals done!.
try changing the FPR back to the old one, if it pulls crap you know its that

With the first head, the air flow will be good and a knackered FPR will make it run real weak! so changing that's
made the big difference