Where would you recommend to get a G25-550 oil return pipe gasket Need to order one tomorrow to arrive Tuesday I was thinking of Owen Developments as my first call, anywhere else I should try ? Thanks
Ahh okay, how long have you ran it for? There's an internal Wastegate version available which I'm looking to fit, but I'm not sure if there's space between the engine and bulkhead.
Theres not a lot of room, even sliding a turbo blanket in was a fiddle. I'm sure Paul at RST will have looked at both options The car has probably done 1500 miles on it, must confess we bought the car with the kit fitted
How do you find it? Was speaking to a guy on Facebook yesterday who was trying to steer me away from it, reckons the lag is just shocking! Where do you have your limiter set and what other supporting mods is it running?
Its fully forged etc, induction kit and 3" exhaust, we have a race set gripper diff also. To be fair I haven't driven it that much, needs few jobs doing. When I have driven it I reckon it's not that bad, it's easy to drive on light throttle and picks up pretty quick. It has a boost controller with 3 set points so we have 350 / 400 / 450 BHP on RST rollers. @ 1.7 bar it did 480+ BHP, but was pegged back.
What boost control are you running? I like the idea of being able to tone things down for wet weather running etc! I'm looking at fitting catcams too, and being mostly driven on track, low end torque isn't really a big deal so boost at 4k isn't too off putting lol.
This is the basic list of mods Wossner pistons Manley rods Catcams – 402 Supertech Valves / springs Balanced crank RS tuning GT25 550 Turbo etc 850 injectors OBP surge tank– 340L in tank pump – 450LPH pump in Surge tank Oil cooler Forge intercooler Eboost 2 Turbosmart boost controller Vibratechnics engine and gearbox mounts Ktech 3” SS exhaust system All put together by RST Once we have a few jobs completed we will give it its first outing in our hands
I guess if you've jumped straight out of a hybrid set up and into a g25-550, the additional lag will be quite noticeable? From what I can see, you're hitting boost at around 3.5k revs and with the correct supporting mods, should be limited at around 7.5k revs, 4k of power band should be plenty imo!
Yeah that sounds about right and tbf it doesn't spoil that much later than a hybrid. Seen them on a few different cars now Inc a good mates A3 and it was making full boost well before 4k and holding it past 8k.
I'd need to find out, Infact he had a 660 before but downsized to a 550 as he has a power limit in the race series he's in so went for thr smaller more responsive setup
Paul, I don't suppose you could get a couple of photos of the turbo in place for me? From what I can see, the internal Wastegate set up needs a little more space in the front so I'm thinking if i could have a manifold built that has the turbo sitting around 25mm further back it should go! Not sure if that 25mm is achievable though!
Only one I have on the iPad The turbo blanket just squeezes between the turbo and the heat shield (heat shield needs replacing I know !) Not sure who makes the manifolds for RST, maybe Nortec - may be worth a chat with them If you do it think about heat management before install, as we are finding there isn't much room when it's in.
No - when it was installed they didn’t heat wrap the down pipe - big mistake. We are going to see if we can get the down pipe off to wrap it - wish me luck !! it would have been a great idea to Thermomet the lot including manifold but I guess that would have added £1000 to the bill
Did you manage to get this together and have a good test of everything? I'm assuming you've had to hijack the boost solenoid to get the boost controller to work?
The turbo etc is in pieces at the moment, hopefully back together this week. I believe the boost controller came with a boost solenoid, you can see it to the right in the pic
