+1. I feel like screaming at the screen every time I read "Stage I this" and "Stage II that" posts.


Best advice you'll get with the heads on these engines is to pretty much leave them alone unless you're looking for big NA power figures for a race-only engine or silly figure forced induction (iirc the 500bhp+ high boost s/c engine Rich_W built used a stock head, though I may be mistaken). At the very most I'd only get them lightly polished to remove the rough casting finish, but when you look into what sort of difference that actually makes it only contributes something like 5% of the total flow loss through the head. The port shapes on XU cylinder heads are known for being quite well designed, in fact the '6 head is supposedly a little "over-ported" out of the box so it's very easy for them to be ruined by a "specialist".

Spend your money elsewhere and you'll see much better gains.

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Ph1 306 GTi 6 | RX8 231 S1 | YBR 125 Cafe Racer | MT-03 660

haha, seem to remember on the old Gran Tourismo you could get a couple of extra bhp going stage 1,2 then 3 rather than going balls out on stage 3 to start with.

i'd recommend the above


light cams fitted on a standard engine (if possible) and some decent tb's will just scrap 200 on an accurate set of rollers...

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230 hp 2.1 16v XU 205 rallye on jenveys Project thread here
309 3dr K20 Type R

I'm pretty sure he could do custom grinds too if you ask him

Having spoke to him though i get the impression he's an old bearded dude in a shack in the middle of nowhere though, with dust and dead wallabies lying around the floor

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Bye bye Sundance Kid

I've changed my oil 10 times since I got the car.

That's 200bhp extra!

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- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.

This is a car forum not a exersize in grammer you want full stops i suggest you search the internet for a english grammer forum

Enjoy your search

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205 GTI6 235 bhp at 7400 rpm

Bob,
punctuation is useful. When you want people to understand what you are saying you naturally pause as you speak. That is all punctuation represents.
If you just run all your words together until you run out of breath people would find it hard to follow your thoughts.
Posts without punctuation are harder to read and understand and give the impression you don't care whether people find you hard to read.
Try reading this post without pausing for breath and you will see why.
cheers,
John.

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New Forum same high quality intellectual debate!
Team Zimmer™

I sent my heaf to cylinder head developements, Had the valve guides replaced and all the seat recut with 3 angles. My advice would be even though he is a top guy, get him to lap all your valves back in and check them well. When I started to lap my valves in the seat cut was shit. I had to regrind them myself to get them correct..
When he looked at the head he agreed that not much could be gained by completeting any head work..

8
Im sorry but i disagree it really is simple you either going to get the power figuers quoted or you are not unless somone has had their head done and can quote power figuers we can all say i advise you to do this or go and see so and so but thats opinions only the only thing that counts is results and if you can read posts by me wrote without full stops/ punctuation

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205 GTI6 235 bhp at 7400 rpm