5 GT Turbo EFI - GT Turbo

[andybond]

Indeed, no other changes but headwork.

Will be interesting to see if I've spunked a grand for little gain.

The laws of diminishing returns and man maths here.

Consider it purchased and dont look back ..

 

[Mark Davis]

CTM called today, work is complete and winging its way to me tomorrow. I'll get some pictures up.

One question I do have as dumb as it may sound, when I remove existing head do i need to undo head bolts in reverse order of the required tightening sequence or can I undo them any old how ?

 

[Mark Davis]

Never mind Haynes says to slacken off in reverse sequence half a turn each bolt.

 

[Clarkey]

You must be excited to see the results......
Looking forward to the pics.

I always undo the head in reverse order as stated in the Haynes.....

 

[Mark Davis]

Yeah looking forward to seeing their work up close. Been a great company to deal with. I think Charlie is in a bit of pain though, he's done his shoulder in lifting an engine.

 

[Mark Davis]

Head has arrived.

 

[Clarkey]

Looking good.......
Waiting to see the difference this makes for sure.

 

[DaveL485]

Cracking stuff. Thats right on the limit!

 

[Mark Davis]

Head is ready to be removed tomorrow. Today I've removed water pump and blanking plate and fitted to new head along with refurbished rocker shaft. Using all new gaskets of course.

Also fitted a fresh set of studs to fix both manifolds to. Need to remove the 2 x rocker shaft threads of existing head and swap to new one.

More pics to follow tomorrow as I progress.

 

[Fordy]

You know the rocker shaft bolts are in the wrong holes?

 

[Mark Davis]

You know the rocker shaft bolts are in the wrong holes?

I do now, nice spot mate.

 

[Mark Davis]

Head is on and torqued to 75nm. Rocker shaft and all pushrods back in. I think that's half the battle.

Demon Tweeks sent the wrong exhaust wrap so can't fit manifolds until Tuesday now, thinking of postponing Scoffs next Saturday just in case I have some teething issues.

 

[Clarkey]

View attachment 17877

Demon Tweeks sent the wrong exhaust wrap

What wrap you gone for ?
I used a Titanium wrap this year and still in one piece, unlike all the others I've tried before which goes brittle.

 

[Mark Davis]

Just some volcano stuff, good for 1000 degrees apparently. The stuff I removed just broke to bits earlier like you said.

 

[DaveL485]

What wrap you gone for ?
I used a Titanium wrap this year and still in one piece, unlike all the others I've tried before which goes brittle.

More info please, link/name etc?

 

[DaveL485]

You know the rocker shaft bolts are in the wrong holes?

Wrong hole.

*SNIGGER*

Sorry. Inner child.

 

[Mark Davis]

Almost done.

 

[Mark Davis]

Valve clearances done. Warmed up to temp and ran for 20 mins. Will retorque head tomorrow then change oil and filter.

 

[Duncan Grier]

Looking good!

I know its more expensive but 1st hand seen great results from ceramic coating and does the magic and certainly not coming off

I have only used zirotec so cant comment on others

DG

 

[Mark Davis]

Changed oil and filter this morning then retorqued head to 85nm also did valve clearances again.

Will try and put a few miles on the car before mapping Saturday just to double check, I'm a little nervous with the MLS gaskets as people keep telling me they don't always seal. Just praying it doesn't give way under load on the rollers at Scoff's.