Just a "theoretical" question for the more experienced people on here, but to build a decent power yet reliable TB converted engine what bits would be required from top to bottom?

My thoughts are

Rebuilt bottom end with h/duty bearings
Forged rods
Forged high compression pistons with bigger valve cut outs
Standard Pug MLS head gasket
Lightly worked head with uprated cams and bigger valves?
Vernier pullies
Throttle boddies & Inlet & injectors
Propper air filter (not socks)
Aftermarket management.

Is there a definitive list of what works, where to get it from and what sort of power gains you would likely see?

Just thinking out loud at present....

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1999 Astor Grey GTi-6 OEM+ (now gone...)
2004 Aegean Blue 206 GTi 180 (also gone...)
2006 Skoda Fabia vRS in Sprint Yellow

If your'e going to go as far as you have in that list though, you might as well put a richw gasket on it two. Its only 40 quid more?

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Ex- Phase 3 China GTi-6 T-Reg

Haha, someone give him the answers haha. I'll be doing this too, but I'm gonna try and stroke mine too

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Red Rallye - Rolling "restoration"

Wishbone Polybushes available

Does he have a project build on here? I'm unsure of who Matty is.

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Red Rallye - Rolling "restoration"

Wishbone Polybushes available

Here you go.
http://www.306gti6.com/forum/showthread.php?id=75829&page=4#85
226hp was final result. Cams TB's and 2.1

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Ex- Phase 3 China GTi-6 T-Reg

Mine's being mapped next week on bodies. I opted for the Sandy Brown/Colin Satchell setup.

Purely for noise if anything.

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Senior Test Automation Engineer for the 306GTi6 Owners Club Forum

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To get the 230bhp mark:

Head ported and valves seat cut to 3 angles
Cams
Valve spring and retainers.
Standard valves.
Proper 4 branch manifold with system

Forged pistons
Standard rods with arp bolts
Standard crank balanced
Lightweight flywheel and front pulley

After that bodies and aftermarket ecu, I have used the plug and play one that goes into the standard loom and has been perfect for me, takes alot of the hassle of rewiring out of the equation

As above standard rods are strong once balanced and arp bolts are used, with this spec 8000 rpm is your rev limit.

Cam wise I do my own spec cams ground nothing off the shelf as there never a spec that I required.
Piston wise you can get 218 bhp on a standard bottom end but with the age of the engine, the bores of the engine more than likely will be out of tolerance and too big. The problem is you can't get oversized standard pistons.
You can go as cheap as possible and get wossner or I get my own piston made for me to my designs cost a little more but are far superior to the wossner piston

Looking at your list you don't need bigger valves, even if you can get them you won't be held back by the already huge standard valves until you head north of 270bhp and 8,500rpm.

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R H Davey Welding Supplies. I sell new and used welding equipment in the Hampshire area. I take on welding jobs in the evenings, ally casting repairs are one of my specialities but I can weld pretty much anything. PM me with your requirements.

Some of my services: (See my for sale threads)
Engine mount/chassis repair
Solid Beam Mounts BACK IN PRODUCTION
Harness bars

Funnily enough thats what Matt advised me to do a few weeks ago!!!!

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Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........

Mac1 ZR R1 kit car build in progress.