Hey there you all

First off all, I'm from Holland so maybe I'll make some fault by typic I'm already sorry

Then the question

I'm doing a full restoration of a Rs turbo s2 and the engine has too be build up also again
so I'm planning to tune it up a bit also

I'll want to fit a sierra cosworth 2wd turbo on my rs turbo cause my standaard rst turbo al fucked up.

What problems will I get when fitting it, I persume it's not just bolts straight up.
the exhaust manifold of the rst does got bolts and the exhaust housing of the cosworth turbo has bolts as well, can this be fixed easy?
then the compressor housing has it's outgoing-side at a otherside but I think this can just be rotated, am I right.

Further I am going for this setup.
I'm aiming for 200bhp will this be possible with the following setup?

camshaft kent cams cvh 34
bigger valves
flowed ports
JE pistons
carrillo conrods
balanced crankshaft
T3 sierra cosworth turbo
-31 actuator
front mounted intercooler
cosworth fuelpomp
chipped ECU
mongoose exhaust 2.5 inch
AP racing clutch

will this be possible

greetings Wim Klomp

 

Hello, power with that spec will be more like 250hp.

The turbo can be fitted, but doesn't go straight on - the problem is with the exhaust housing. As you said, they both have studs - that is easy, you take the studs out of the turbo, and drill out the threads. Then you bolt it as normal.

Next, you will notice that your exhause will not mate onto the cosworth turbo. The RST elbow will not fit onto the housing - it uses 5 bolts, the cosworth 3. You can either get a cosworth downpipe, and have it modified to clamp tou your exhaust, or.... there is a guy in germany that makes an adpator for around 100 pounds - then it bolts straight on.

You then need to rotate the housings on the turbo core, so everything lines up. You loosen the six bolts that hold each housing to the core, and rotate them to the same angle as the std turbo. The exhaust side will probably be VERY difficult to turn - heat it if you can.

Rick.

 

alright
thanks then

then I'll go for the cosworth turbo
and maybe it will make more bhp as 200 but then I'll will put the turbo pressure some bit lower when just cruising to save the engine and when ff a small traffic sprint or something I can raise the turbo pressure so he can see my taillights without damaging the engine too much

thanks man

maybe I'll start a topic at restoration-topic some day