Experiences with a Warped Manifold

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Postby cat007 » Wed Feb 17, 2010 8:27 am

I'm confused

I haven't taken mine apart yet so can't really tell - but, on the left of the picture - there's 2 possible places for an extra stud?
1:15.4 around Pukekohe
13.63 @ 169kmph at Meremere
Fastest MK3 at Suprafest 08
1G-GTE - Stinger 4424, T04B 60-1, 440cc injectors - 240rwkw @ 16psi
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Postby fivebob » Wed Feb 17, 2010 8:48 am

cat007 wrote:I'm confused

I haven't taken mine apart yet so can't really tell - but, on the left of the picture - there's 2 possible places for an extra stud?

No, only one, the one at the top left. the bottom left is either broken or missing, can't tell from the photo.
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Postby cat007 » Wed Feb 17, 2010 8:49 am

fivebob wrote:No, only one, the one at the top left. the bottom left is either broken or missing, can't tell from the photo.


Ah ok

And is there a thread in that hole? or does it need to be drilled and tapped or?
1:15.4 around Pukekohe
13.63 @ 169kmph at Meremere
Fastest MK3 at Suprafest 08
1G-GTE - Stinger 4424, T04B 60-1, 440cc injectors - 240rwkw @ 16psi
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Postby fivebob » Wed Feb 17, 2010 8:57 am

cat007 wrote:
fivebob wrote:No, only one, the one at the top left. the bottom left is either broken or missing, can't tell from the photo.


Ah ok

And is there a thread in that hole? or does it need to be drilled and tapped or?

It's already threaded, just add a stud.
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Postby cat007 » Wed Feb 17, 2010 9:05 am

fivebob wrote:
cat007 wrote:
fivebob wrote:No, only one, the one at the top left. the bottom left is either broken or missing, can't tell from the photo.


Ah ok

And is there a thread in that hole? or does it need to be drilled and tapped or?

It's already threaded, just add a stud.


Welded cast steal is ok? I thought it was crap to weld?
1:15.4 around Pukekohe
13.63 @ 169kmph at Meremere
Fastest MK3 at Suprafest 08
1G-GTE - Stinger 4424, T04B 60-1, 440cc injectors - 240rwkw @ 16psi
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Postby fivebob » Wed Feb 17, 2010 3:48 pm

cat007 wrote:Welded cast steal is ok? I thought it was crap to weld?

Cast Iron is a PITA to weld but it can be done by someone who knows what they are doing. Trick is to find someone that knows what they're doing as opposed to someone who thinks they know what they are doing ;)
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Postby BZG Wagon » Thu Feb 18, 2010 10:28 pm

Job complete!

I now have an eight studded manifold and a car that no longer sounds like a tractor. Manifold looks great - as if it came like that from factory.

The difference is noticable - the car is quieter to run, feels more responsive, accelerates from cold and seems to sit better at lower revs when cruising.

Doesn't feel any quicker when warmed up - in fact maybe the opposite. I wonder if the leak caused a flat spot somewhere or some extra lag? It certainly pulls nicer through the rev-range now though.

Costs for those looking to do it:
$200 Lug added to manifold & machining.
$ 60 Manifold gasket (facelift gasket is slightly more expensive).
$ 25 Studs & exhaust nuts.
$285 Total excluding labour
$355 Labour
$640 Total Cost

Happy with the price (I originally budgeted $800).

Hopefully the repair lasts the life of the car (which hopefully is quite some time). Off on a massive road trip next week so it'll get a good testing.
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Postby cedwards » Fri Feb 19, 2010 8:16 am

who did the welding and machining?
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Postby BZG Wagon » Sat Mar 06, 2010 10:11 am

cedwards wrote:who did the welding and machining?


I've PM'd you their details. :D
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