Originally Posted by clkio (Post 3072603)

You see mikey, I bought a used supercharger kit from g37 forums and the kit had all the upgrades done to to it (pushing 12.5 psi) on the stock engine, car was making around 480whp and 357 torque, I went ahead and installed the meth kit but didnt tune yet. After few days of driving with the supercharger, engine blew (before I got to tune for meth) so I found a great deal on the rebuild engine I have right now. Unfortunatly, car made less power 462whp but made 380 torque but still not tuned for meth. I will be running meth around March and see how it goes. If I am not happy with the setup at the end, I will be removing the supercharger, selling it and buy a TT as the built engine i have now is better for a turbo setup.

Originally Posted by mikey1600 (Post 3072741)

fair enough, thought you would have lost a lot of power going from 11:1 to 8.5:1, turbo setup sounds good, I'm still torn about doing all the changes to mine now, probably too much $$ compared to the gains. Still waiting on pricing back from vortech supplier here in Aus to do the upgrades

Originally Posted by clkio (Post 3072851)

Out of curiosity, how much is this going to cost you? Dont get caught up with the numbers because uou are absolutely right about the $$ going to be spent vs the gains. Extra 60hp will cost you maybe 2000? Why don't you sell your setup all together to a turbo? The reason I ask is I bought the stillen kit used of the forums for $4k with all the upgrades done as well as walbro 340 fuel pump and 1000CC injectors which was the best deal at that time. Personally, I wouldnt put the money on rebuilding the kit since I am spending thousands, you want more power, sell the kit and buy a TT because the thousands you going to spend here will yield you a lot more gains than 60hp.

Originally Posted by mikey1600 (Post 3073288)

yeah I hear what you are saying, it's going to be easily over $2k for the upgrades, no idea on HP gain really at the end of the day.

only kit I can get here in Aus is $10.5k and it's basically the exact same as the original GTM stage 1 kit, which for me is just way overpriced, none of the other US kits will fit the RHD setup. So would really have to get someone local to do a turbo setup, aka guinea pig, which I really don't want to be around here.. so unfortunately it's kind of do these upgrades or nothing really.

Originally Posted by clkio (Post 3073488)

I am almost 100% certain your stock engine will not lost long if you upgrade that kit so here goes another 5-7k. Enjoy the car mikey, the headache and agony that I went through when my engine went and thousands spent was not worth the little extra power.

Originally Posted by jwick (Post 3074817)

Hasn't it been proved over and over again that you should never upgrade the Stillen SC?

Originally Posted by mikey1600 (Post 3074787)

haha all good guys! I'll take your advice and just leave it alone!

Originally Posted by Chuck33079 (Post 3074820)

Pretty much. More boost= more heat that the ecu doesn't know about= blown motor.

Originally Posted by Chuck33079 (Post 3076341)

Yep, we've got both a MAP and MAF. From my knowledge the MAF provides the IAT data, hence the problem with the Stillen plumbing. No idea if you can unmarry the two. Turbo guys blow motors too, but it seems the Stillen kit likes to detonate at a far lower power level than guys run with no issues on turbo setups. That's why I'm almost convinced that it's because of bad data from the MAF since it's pre-compressor. Lots of factory FI cars run a draw through MAF setup, but they're tuned by the manufacturer to account for it.