Turbo upgrade
 

What would be the best option after running a Td05 16g for a while . I have been looking at the sc460 billet on scoobyclinic , the MD321 series on lateral performance and the GT-420 on Andy Forrest performance aiming to achieve 420-450bhp on a forged engine running non vvt heads .

Will it be a 2.1? The Sc42 is very a very capable unit. Seen them achieve 480 odd on a 2.1

No keeping it as a 2.0ltr

Any particular reason why? Purely asking out of interest mate, not questioning your decision :-)

I'd personally go sc42. Will get you the power you want.

Sc40 or 42 would be my choice

No reason but I will look into it and see how much of a price difference there is with my builder .

My MD321x may be available soon, as a proven 450+ turbo on a 2.1 when it was on Angers car.

Made 507bhp on my 2.1 :)

That's a decent +. :D

Have an MD321T billet in mine, very happy with it.

Essentially, I think it's the cost of the crank and machining to the block that's extra. Personally if it were me, I'd get it done.

Can you use a SCDB for a 2.1 stroker as been looking at more info and a CDB is used as it is a stronger engine .

Scdb are fine for 500& a bit :)

As CJ says mate. Think CDB's are starting to creep up now and as a scdb will be more than sufficient for what you're aiming for, it's not essential to go that route.

Just found out from one builder it costs a lot more to build a 2.1 than to go the full forge route but still waiting on a reply from my builder to see what price he going to give me as he has gave me a good price to forge the engine I bought off him .

Interesting. Not had either done so I have no personal experience but from what i've read (in hours terms we're talking days if not weeks!) it's not much more. Not asking you to disclose your price but I know Engine Tuner do a 2.1 stroker for £4k. You drive your car there they do it, run it in for the first 50 miles, change oil then you pop it back for further oil changes (500 and 1000 I think) during running in period then they map it. They have a very good reputation too.

Pop it back is a 8 hour round trip

HAHA I wish 11hr one way trip for me .

On the plus , it'll be run in quick :D

I think I will give a phone or email to talk to Alan Jeffery at Enginetuner for a price to see how much it will cost to do a 2.1 stroker on the sti8 SCDB then go from there .

You could just stick a stock STi8 bottom end in for your power target, all I'm doing with my new classic

Got to get the running in miles done anyway. 2 birds one stone is how I'd look at it. :-)

That's what I've decided but just going to get it forged just to be safe as it works out a lot cheaper are mahle powerpak pistons a good choice to go with . What classic have you got now James .

Exactly what I think. Little more than two days driving et voila.

Confused at how it works out cheaper going forged

What you up to then mate :)

Selling the blob?

Because the sti8 short block is already sitting waiting on me it doesn't need to be pulled out of the car and stripped its a lot less work for him to do which cuts the cost down a bit . Mind you the price will go up with the extra parts I will want fitted ready for the engine to drop in .

My STi8 has been running over 420 for 6 years now

http://tapatalk.imageshack.com/v2/14...ce25fd861a.jpg

I now own this shell and the blob stays for now Steve :)

I was wondering if you were going to buy that so what's the plan with that James (going to track it ) .

Nice, that is going to look the nuts :D