Originally Posted by booja

i spent about 6500 total

that was for a 2jzgte swap with all maintenance stuff done like gaskets and seals water pump and belts.

supra tt pump, xspower manifold, and a 70mm single and all associated stuff like bov and wg, piping and intercooler, boost gauge and aem wideband, greddy timer, apexi avcd boost controller

also got the dp and midpipe fabbed and modified...

all fluids and a new clutch

oh and all labor and wiring

Originally Posted by 1SickSC

is it a good idea to not change your head gasket?

Originally Posted by dejacky

From a bang/buck perspective, I agree with you starting with an oem turbo'd car is a much better value in the long run. Some of us are just crazed at turbo'ing our NA cars and learning everything we can in the process....even if that means crying from the expenses.

Originally Posted by dejacky

Ditto.
It's important to stick to your 350hp goal as a limit. Once you've decided on that power, stick to it, otherwise changes you make during the process will end up costing you more. As a 350hp limit, here are some benefits of not going beyond this power level:

1. You can retain your stock 5-speed w58 transmission (if you're manual trans) and this drastically reduces costs since you'd only need a good clutch.

2. You don't have to remove the engine head = MUCH time and money in labor cost is saved. Your static engine compression will be higher and you'll have better engine response as well. Trust me, the stock engine compression na-t cars are fun when setup to their maximum potential. Keep in mind, an additional 150-175 hp/tq on the NA final drive ratio is much quicker than stock and is good enough to beat most oem cars considered fast on the street

3. You can enjoy the fruits of your labor sooner because less work is involved and the less things you change minimize potential for problems that need debugging .


Cost considerations

XS Power turbo kit = ~$1,800
SupraTT/Walbro fuel pump = ~$90
550cc injectors = ~$285
AEM EMS 30-1101 = $1,550
3-bar map sensor = ~$70
AEM AIT sensor = ~$56
Justin Nenni Tune = $600 (www.tuningconcepts.com)
Dyno Time 3 hour = ~$120
Clutch Kit = ~$500
RedLine MT90 Transmission Fluid = ~$40
used torsen LSD unit = ~$325
LSD installation into stock pumpkin = ~$220 including fluid

The limited slip differential, in my opinion, should be a requirement when turboing a car. I've experienced open diff and lsd on my sc300 and it is just stupid not to install a lsd because it provides much better control to the car, especially when applying the power to the ground. The downside for w58 transmission owners is it puts more stress on the transmission, so don't launch your car with that setup.

After you've done the above, your cold side intercooler piping still sits directly on top of the turbo and that absorbed heat raises the temperature of the air that was just cooled from the intercooler. So, you ceramic coat the exhaust turbine housing ($75) of the turbo AND put a good turbo blanket (~$120) on the turbo to help combat that heat absorption.

The intercooled air continues through your throttle-body and y-plenum, that sit on top of the motor and are also heat soaked from the motor's heat, thus further helping reverse the process of intercooling the intake air. It's a moot effort trying to change spark plug gap on the dyno to determine optimum gap with the stock intake manifold...unless you like mangling and burning your hands. or you can get a TT style intake manifold and make your life easier = ~$750 for a decent one after all expenses

Two other necessary upgrades when turboing your car, in my opinion, is upgrading the suspension AND at least the front brakes. Your car should be setup to handle the extra power and stop consistently from higher speeds as a safety measure.

Aside: AEM EMS is not the only standalone ems option, it's just one of the proven stand alone engine management systems familiar to most tuners. I didn't include piggy-backs tuning computers because I think they're a waste for our na-t cars. On stock 2JZ-GE engine compression compression they'll handicap you in terms of optimizing consistent driveability and maximizing power when compared to a properly tuned stand alone engine management system.

As far as total costs to "do the job right," I hope my post has made you more aware of steps involved in the process.

Originally Posted by craaaazzy

u can find used torsen lsd's for sale for around that price. keep in mind, this is only the internals which require you to then swap into your existing diff.