Having bought my NA way back in 2003 I modded it about as much as I could until having the 2011 Brisbane flood totally cover the car, tanks to forum members and friends the car was taken off my hands and stripped and cleaned and painted only to have a head gasket go right after we put the engine back in. Right after the flood Halfway painted First time back in the garage After fixing the head gasket and I had other issues and a house to fix so the car sat idle out the front for 2 years. With the Nationals being held in QLD in 2015 I decided to try and get her going and ready for the event and also decided to bolt a pair of stock auto turbos onto my NA motor. So with some help from Karl we set about making the intake pipes to go directly from turbo to manifold. Turbo bolted to the motor, yes I used that dodgey rope to lift the motor in and out was all I had laying around lol After the motor went back in I had to install the water/meth injection as I was not going to run intercoolers to allow faster spool. Pump mounted on the driverside inside the nose panel Safety module to keep an eye on the flow and warn if the flow drops will be wired to deactivate the EBC and go back to wastegate pressure. So after all finally getting everything finished and few hicups when going to tune (tired pump, fuel pickup blocked - dirty tank from flood) third time was he charm with tuning. Tuned on 98 pump fuel at just over 14psi Karl managed to get 245.6kw out of it and it held and gained power right out till redline which was awesome. someone could work out the road speed to RPM but I think it is making full boost around 3k Before converting to a TT it made about 156kw so an increase of 90kw for a pair of stock auto turbos is a good result Took her out to QR on saturday just past 6/6/15 and I have to say was very impressed with how it performed I felt no lag and it pulled quite well, I did manage to better my NA PB from 62.8 to a 62.3 but I did have some traffic so quicker times to come. The whole idea behind this transformation was I had already spent alot of money on my NA motor and it would not be worth selling and not many have actually turboed an NA motor. The pluses with doing so with no intercoolers and auto turbos would be virtually no turbo lag for a track car so more power sooner coming out of corners at the track and being able to upshift early and still have a decent amount of power down low. For those who are interested in the mods list: Port matching from Upper plenum thru lower plenum and thru the heads Heads have larger intake valves Upgraded springs - cant recall brand Block has been bored out 40tho CP forged pistons JWT mild cams JWT adjustable exhaust gears Stock Auto turbos Stock TT injectors JWT lightened flywheel UR underdrive pulley K&N pod filter 2.5inch dual to 3inch single exhaust Nistune ecu - Karl from EPIC tuned Snow water/meth stage 2 kit GFB Geforce 2 EBC
Congratulations on your rebuild, looks a lot different! With all due respect, I think there is something wrong with your engine, perhaps the upgraded parts are mismatched. This assumption is based on the 245.6kW figure. I mention this because the rear wheel output figure on my TT is 243.something kW's. The issue is my engine is totally stock, including the airbox & filters. It is fitted with NIStune, an eboost2 boost controller set at 14 maybe 15psi & a 2.5" catback exhaust. Given your list of modifications, I would have expected more than a 2kW (approx. 3HP) increase over a stock TT engine with 120,000 kilometres on it.
I think the limiting factor is Stock auto turbos from what Karl has seen they usually tapper off around the 230-235kw. Maybe down the track I'll look into different turbos but so far 245kw is enough to get me some good lap times.
Great to see you back and running AZA(can't keep a good man down.:br. Cheers from Lynn & I.:zlove::zlove:
Here Anti, couple of pics of under the hood The red hose is the water/meth line A closer look at the intake piping you can see where the nozzle for the water/meth is. I have to fiddle with the pipe out of this side turbo as you can see the power steering is not bolted down, should be able to get it to sit properly with some persuasion. The Radiator is out in the pics but I got bagged abit for using a TT radiator where I could fit an NA one, I found I had no dramas with temps out on the track but it took ages to warm up which I have now found the thermostat wasn't fully closing. Oh here is Karl working hard on the tune I have a video of one of the dyno runs was around the middle so it only shows about 213kw
Thanks for the pics, but oh man do those twin 180* bends make me cringe I'd almost prefer for them to cross over instead...
