Sachs SRE from Darkside. Coping fine too.

but which one? I've a feeling my helix has shat itself but it could be the box. or both(?) :-/

The most expensive one. I forget if it's a paddle clutch or not though.

it'll be a paddle I'm sure. bleurgh

you still playing with maps or it finished? has this been on rolling road with current setup?

Jason what is the clutch like to live with as daily? Is it loud?

Not loud rattle in neutral, clutch out.

It's got some bite to it, but that's sort of expected with a strong clutch.

Stephen - mapping still fiddling although it's bloody quick now.

Wow, this thread needs an update....

What I can say is the water meth is refitted and working rather well. Car's pace has just gone up another notch.

ANOTHER notch!? There can't be many more notches on the belt/ladder!

Just read through this, very impressive work. I would like to think you can surprise people who overlook the car?

JRJG

Well, the pace has gone down a notch now.  to NIL

 

Smoking badly, especially when coming off the track at Combe when on over-run its meant to be injecting no fuel!!

 

Got nice little cracks between each valve and the injector end :(   So new head time.

 

 

Block is OK at least, given it's had 150,000 miles of abuse!  Only forged rods in there!  Only mod!

 

Gutted to hear about the head Jason, I was wondering qhat the outcome was as I hadn't heard anything about it. You got a replacement head sorted for it? Was your current one modified?

Gutted to hear about the head Jason, I was wondering qhat the outcome was as I hadn't heard anything about it. You got a replacement head sorted for it? Was your current one modified?

 

Current one has been ported twice and has bigger exhaust valves.  All done about 6 years ago.  I need to find out how porting / valve technology has come on.

 

A local PD head has popped up which I can get for £20, but to turn it into anything like the head that is cracked will mean spunking around a grand on it.

Has it cracked on the inlet or exhaust seats?

Has it cracked on the inlet or exhaust seats?

 

ALL of them.  There's eight cracks in total.  They could have developed at different times as to be honest in the past 3 or 4 years the white smoke on start up has been real bad, and it's only in the last 6 months symptoms have started progressing to the light throttle smoke and sudden decrease in fuel economy.

Just read through this, wow you've had some fun!  Sorry about the head, I hope out doesn't stop the fun.

Well, head back from my tuner.  I think this is the first big valve head they have done, but this is now fully ported, all eight valves uprated, along with the springs.  

 

I'll be fitting a new 10.5 lift cam, my DSSR 130% injectors and new shells, etc.

 

Looking forward to it!

 

 

 

the ring trip just wouldnt be the same without the mongrel

Hope the rebuild goes ok

Fingers crossed up and running Monday....  Off to the Ring Thursday!  Nice!  

What did they say about the cracks in the head?

Maybe the angle of the pic,or my eyesight but isn't the valve furthest to the left in your picture not sitting flat in the head?

All running very nicely now apparently.  I wasn't there to see first fire up as had to go back to work.  Been informed no start up smoke and ticking over much better than before too.

 

Should get it back tomorrow.  And whilst there were a couple of small cracks, its nothing like the old head, and will be fine for some time.  In theory for the long term I should have got a brand new head, but they are not cheap at all   :(

I've been watching the updates on Facebook, looking good!

Surely you can keep an eye out for a low mileage breaking or something?

It's not always mileage which cracks head, or tuning, or how they are driven.

 

It just seems to be a PD thing that it happens, and sometimes it doesn't.

 

A perfect solution is a new head, or somehow being able to bore out the valve seats and sleeve in steel which is less susceptible to cracking.  I don't know really

Brilliant thread lad, top work.

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Awesome thread, awesome build.