Turbo gone! Upgrade t3 or go t34??
 

My seals in the turbo have started to go and is smoking a lot now.

I have a sapphire cosworth 2wd on yellows running stage 1 at around 250bhp. I may go to green, 3bar etc at a later date.

My question is

Should I upgrade my t3 by getting it rebuilt to a hybrid stage 2 or should I get a old t34 and do the same?

I use the car as a daily driver and I'm quite used to the t3 now and would like a little more punch. So would the t34 be ok for daily driving use?

Plus another question is how much boost is ok to run on standard heads bolts? At the mo I'm running 16psi.

Thanks

if you want to stay with the t series turbos and it to be a direct fit then go with a t34 on a 0.48 housing, with greens you will hit 300 hp easy without running to much boost.

Standard head bolts are ok with 500bhp, so you will be safe

Steve

Ive got a mint T34 here;-)

T34 gets my vote.Mine was 320 greens and a T3@ 22psi.T3 maxed out.A 34 gives you more scope :grin:

Gt2871r .48 drop in T3 flange.


Cheers, T

much mate?

From my experience as I had a 2wd sapph on a t34.63 and a modified t3 on my 3dr.
A t34.63 or t34.48 only makes sense over a t3 setup if you are looking for 370hp+. Using light blues or higher as the 803s = Dark greens will hold back the full potential of the t34 turbo, due to delivery rate.
Most people havent experienced a t3 when its peaking almost 2 bar, they are torquey punchy little foookers but run out of puff up top end. Great for A road racing though.

Suppose it depends on your driving style , as said above the t34.48 is the best fast road setup but don't run it on greens.

Thanks for the feedback everyone.

So my mind is starting to go for the t34 if I do go down that road It should be ok on yellows for now? Plus cos I'm not really going to go past 300ish at a later date it will be no point going for a .63

want me to pop mine over Dan for you to have a go now it runs ok :cry:

NMS Gunship live map on my old 3dr T3 was awesome, made 310 bhp and 356ft/lb @ 2bar peak, it was a TT Stage 2 T3 mind you, but man was it a great setup. :-)

Still keen by the looks then Danny ;)
Its a great question in my eyes the T3/T34 choice. I love an early punch which suits most of my driving and always wonder if a 34 would upset that and become sort of unusable until you get on some decent lengths of road of course. I guess its your style and surrounding you have to consider to get the best from your spec.

Yes mate. I do love it! I do like the t3 and it's a very mixed driving I do from b, a and motorways. Not crazy heavy on the right foot but I do like the lag to a push back feeling in which I feel maybe the t34 could give me. I feel the t3 Delivers the power very well from an early stage but having not experienced the t34 I can't really judge.

Well mate if your free I'm happy!!

i think a t3 is a waste on a yb, ive had 2 and they were both puchy as hell but proper dead at the top end.
ive run a t34 on a 0.63 on greens at 24 psi no issues with fueling and it got abused constantly no issues.
t34 .48 would be the one, look at rsmats dyno plot loads of low end power, still strangled up top imo but still makes 400 hp and similar torque.

I went down this route last year, started modding my ageing Saff after running it at stage 1 (280) for 10 years.
If you want to do it 'properly' bear in mind you'll need injectors, map sensor, turbo, bigger intercooler, breather system etc. It adds up but I sourced most of mine used for good prices.

The result? 347bhp. Transformed the car (made me smile and swear a lot) and the mid-range pull on it from 50 upwards is incredible. Out-dragged a Caterham R300 and a GT3 on a track day much to my surprise.

Sounds good Plynchy

It is Glenn, couldn't believe the difference it made!

It's just stupid now compared to how it was (loads of peeps on here warned me it would be).

From what you lot have said looks like the way is the t34.

So far I've got not fitted yet a airtec 500 style intercooler, some greens that didn't cost anything as a friend has upgraded and that's it so far. All not fitted as I'm saving for a wasted spark kit too and do it all in one hit and get it all set up. Plus anything else I need.

So if I go for a t34 it should be ok for my set up I have for now?

Dan dont bother with a wasted spark if your going t34.48 ive just put a group a coil on mine and mines the same spec :top: ill try pop over tomorrow lunch for your test drive :cry::cry::cry:

Take your AA card big boy :blabla::cry::poke:

That would be cool mate.

What was the outcome with it cutting out in the end?

Your right :cry::cry::cry::cry: it is 3 miles at least :top::top::top::top:

the 3 connector blocks on the bulk head mate cut them out soldierd them up job jobbed

why not bother with a wasted spark kit,i personally think its 1 of the best mods ive done to me cossie.car drives much smoother pulls better win win for me.was tired of chasing misfires

mark