Thinking about upgrading turbo to td05 18 billet

Got 1996 sti ra version 2 just got apexi and cammander ecu and 440 cc yellow injecters and set v2 440 injecters with version 1 fitting kit lol

My td05 16 been rebuilt and messed with befor I bought The scooby I'm after turbo that can be fitted straight on or mod easy and then sell the one on car I'm after around 370bhp was what should I look for was looking at getting td05 20g but need my turbo of car to get one made up and car would have to sit in garage till came back as don't have clue how to take off lol .

Would there be much diffrents changing from td05 16g to td05 20g ? Or any one recamend any thing else ?

Thanks Gary

Get Jonny to change your 16g to a 20g

Won't it be laggy

It will be laggy and also the sudden blast of power from a 20g will rip your gearbox to bits. Leave it alone Gary or you will regret it

No probes it's just tempting lol

I went from a 16g to a 20g. No bother, 3 gearbox later and a 6 speed on the way, its an expensive conversion ...

A 16g turbo will come onto boost earlier and spool better than a 20g.

I've tried all three in the range 16,18 & 20G, the best by far was the 18G IMO, & TBH the 20G wasn't laggy.

Is that on a hatch

Think I'm going for either the 16g or18g wen that part of my newly approved build comes around fingers crossed probs the 16 as I'm gunna be looking for around the 330bhp mark

iv got the jmg 16g running in my hawk at 360bhp, its quality, 3000rpm it pulls like a train.

Cool not bad bhp 360 will have good think thanks for input :-)

byers wrote:

Is that on a hatch

No bud on the classic

A 16g will cope with circa 330bhp.

Thinking about going for td05 18g with billet for better spool up and air flow
Of jonnygav any one got one

No but am thinking about asking him to do mine but I dunno what extra I would gain and will it be worth it power wise and if see a great improvement on it

SC46 is next for me
Don't tell the missus !!!
Or anyone else

You just have lol

Was looking at md321 second hand £600

Natski what bhp will take it too

It's a 460 BHP turbo so it will more than likely blow my engine to bits

byers wrote:

Natski what bhp will take it too

SC46 is a 460 BHP rated turbo  

They seem to be highly rated, but I have been told that they are older technology and the MD turbos are better....can't speak from experience on that though as have never owned an SC to compare with - but I have an MDX555 (Same turbo as MDX321T).

garyblake wrote:

Was looking at md321 second hand £600

Where ?

SC46 turbos are cheaper than MD's I'm a poor man and can't afford an MD turbo

Probably can't afford an SC46 either lol

eBay 221242791276

Soz it md 312


MD312 turbo based on a 20g with slightly bigger wheel than used on a 20G conversion making 405bhp at 1.5bar very nice turbo on this set up little lag with bags of power and torq still has more in it also direct fit for all years with single scroll setup £600

That's a non billet old school MD not worth £600 in my opinion
Better off with a Jonny Gav turbo

That what i was thinking plus jonny are new and Nesf style :-) just wonder what it will run bhp ?

Just wondering who got one