Hi i need some help im trying to research the above as in 6 months time im gona go with a Turbo set up. Here is a list of the parts i think ill need for the setup.
DET Piston Rings
DET Rods
Crank? will i need a DET one or are they the same as the DE?
T3 turbo
Manifold
Down pipe
Thicker head gasket
Intercooler
Clutch
Tranny upgrade or not? i want 230 HP at the crank will a stock tranny take it?
ECU upgrade
Right just brief but i am not sure at all. If anyone has any info or maybe has a turbo set up them selves can they please give it to me.
For 230 hp, you won't need to open up the engine. The crank can take over 400 hp stock, even with the 9.5:1 compression. With the right turbo and engine management 230 will be easy. Intercooler, cams, T28 turbo, 3" exhaust, and a downpipe should be good for 230 hp easily. Try to find a turbo manifold from a GTi-R.
Well i want to go for maximum reliability cause its gona be a daily driver. If i run a low compression like the GTIR 8.5:1 surely it will be more reliable and stronger then running 9.5:1. Also ill be abe to run higher boost when the odd M3 comes along. Whats the max HP i would get running a T3 turbo setup with GTIR internals. I want 230 but if i can get more then i might as well.
you can make more hp on a 9.5 motor than an 8.5 motor given equal boost
You want about 210whp?
this is what you do
T28, JWT (or hks, toda, jun) cams (264's) upgrade the fuel pump, engine management, 370cc injectors, ACT clutch or equilivant, front mount, and all the other pieces (oil, water lines) do this on a stock compression DE and at 8psi you will easily reach your goal and be very very reliable.
compression doesn't kill an engine, detonation does
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Well i got a quote for a full rebuild today for 2000 pounds dam expensicve that will be with putting in the stock DET piston rings and rods to make it a lower compression. Then 1000 for the turbo install and mapping. They say to use a T28 roller bearing turbo and that i should be looking in the 270 HP range with the setup.
Im after a T28 now cause that price should come down if i get one from the states. Tehy say that it will be reliable as a daily driver with that HP are they right? Oh and how much does it cost in the states to get a conversion so i can compare. Thanks
it's a good idea to get a ball bearing turbo(which is what I think they are talking about), but it will cost more...it has less turbo lag and will last longer. Aslso, I think a GTi-R has 8.3:1 compression.
Ok that sounds a bit better i may go with the DET internals and a t28 ball bearing turbo now. All i want is 270 HP and then the option to go higher in the future. I dont mind about the cost thing im wotking two jobs to fund this now so it dont matter how much it costs.
would either of you happen to have a chart that show's the differ boost charastics of a ball bearing turbo and standard T28?
I am willing to be that the BB turbo may spool about 200rpm sooner. Not worth Double the price IMHO. Also, current turbos are built to last the life of the engine...t28's come on a lot of OEM cars and there is never talk of rebuilding them when people buy the cars. A T28 in the states will go for $500 USD brand new (non-BB of course)
with a BB center, it's supposed to happen 300 rpm sooner...but that's not the only benefit...compressor wheels slow, stop, and restart depending on how much is flowing...downshifts into a boost curve turn the wheel faster. This is one example of how a ball bearing turbo provides more instant response. Ball bearing have less inertia. It's the engine owner's decision as to whether or not it's worth the price. Also, a T28 is a little on the small side. It's meant to provide a more even curve at the sacrifice of peak hp. A T28 usually flows enough air for about 320 crank hp(?). From there, it's a T3/T4, T66, T76, hairdryer, etc.. Also, if you want to upgrade, the I think the BB manifold has to be replaced with a new manifold for anything over a T28. I could be wrong about that though. The Pulsar GTi-R manifold will bolt on a T3/ and bigger turbos that can flow 450 hp worth of air, so if yu can source one of those manifolds and sell the BB manifold, you will help yourself.
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