I drive an 07 3 HB. It's a 5 speed automatic. I wanna get it turbocharged, but I know modifications to the transmission need to be made. I'm hoping someone could tell me what I would need to do in order to turbo my 3. Anybody know what modifications need to be done and where I could get them done? I know a lot of people say it's not a good idea, but I'm optimistic.
Question: Turbo Automatic?
- Thread starter astrock42
- Start date
astraelraen
Member
You've probably been told this already, but for the same amount of money you could probably sell your 3 and buy a MS3 for less.
My 3 is presently a lease. IDK if that's a bad idea, or if my payments will be the same or what. Would it be wise to terminate the lease and trade it in? Would payments be higher?
FrancoNemo
Member
- :
- 2010 MS3
if u trade it in ur goin to be upside down (term used by dealers meaning u owe more for the 3 than wat they will give u for it!) soo ur payments will be way higher. Plus being a lease ur not supposed to mod it. mine is a lease but i plan on buyin the lease out as soon as i have some money.
i recommend u eirther do the same or put the extra money as down and trade in the M3 for the MS3
Thanks for the heads up. Already got the CAI and Rims, but that's all reversable. Thanks, you probably saved me some grief.
The nice thing about leases is that when they end, assuming you have not done anything outside of your lease agreement (like mileage overage or abuse of the car), you walk away owing nothing. The terms of your lease should also mention what you can and can't do to your car for modification, and the allowable stuff is extremely minimal.
knowledge007
Banned
lmao...do not touch a leased car.
knowledge007
Banned
Second and last warning... DO NOT TOUCH A LEASED VEHICLE!
Trust me I got the message. I won't do anything. Last thing I need is to have less money.
You are asking for trouble. If you wanted a turbo, you should have just bought a turbo. You are going to ultimately destroy your vehicle if you attempt to do this. The stock engines are not designed to handle positive pressure in the combustion cycle. The compression ratio is too high and as a result the rings and bearings will not be able to handle the additional load. Also, the transmission is not designed to handle that much additional power transfer.
The turbo engines have a lower compression ratio to account for the increased pressure in the combustion chamber. They also have much stronger bearings on the cranks and cams, larger fuel injectors, completely different air ingestion and exhaust designs, lower manufacturing tolerance on the cylinders themselves, along with the compression and oil rings, and the list goes on and on and on.
I think you'd be crazy, if not stupid, to add an aftermarket turbo to a stock car that you want to continue operating for any length of time. The cost of doing so properly is far greater than simply paying the extra money at time of purchase for the turbo version of the car that was actually designed to operate with forced induction.
That's not exactly accurate. There have been many people who have turbo charged their stock motor and haven't had any issues. A lot of problems people have with turbo charging a stock motor is 1. Improper tuning and/or 2. 'Let's turn the boost up and see what this baby can do' syndrome.
6-8lbs of boost, somewhere in the neighborhood of 200whp, has been done several times to a stock 2.3l with no ill effects. I think tuning really plays the most important part here.
However, it is always best to prepare for the worst and build the motor properly with forged internals, lower compression...etc.
And, of course, I wouldn't do it with a leased vehicle but it sounds like astrock got the message on that so I won't harp on it.
6-8lbs of boost, somewhere in the neighborhood of 200whp, has been done several times to a stock 2.3l with no ill effects. I think tuning really plays the most important part here.
However, it is always best to prepare for the worst and build the motor properly with forged internals, lower compression...etc.
And, of course, I wouldn't do it with a leased vehicle but it sounds like astrock got the message on that so I won't harp on it.
I am speaking more to the eventual catastrophic failure of the motor due to detonation. If you do not lower the compression, you will have detonation at very small amounts of boost, perhaps even just a couple of psi, especially since the stock CR is already over 10.
One of these days when I have a couple of hours to waste, I'll do the math
Maybe it will handle 6-8, but that's an awful lot of boost.there are pleanty of people who turbo their n/a applications and are fine. I think anything more than 5-6 psi is pushing it without forged internals. the MSP is a stock p5 motor with a turbo, it runs so rich and the ecu is crap which is why some people detonate and blow their engine even at stock boost. with proper ems and fuel management, you could safely boost a stock motor for 5-6 lbs.
