Turbo...Who done it????

[giddyup306]

In about another 50K or so I will most likely need a rebuild on the motor. If I do that I would definately go turbo. What I would like to know the most is if there is someone that has already done to work and configured the headers for the turbo. Suggestions are welcome. I have an abundant acess to used turbos that I can rebuild cheap so that's not a problem. I'm sure I could find something for an intercooler as well.

Thanks

Mike

 

[Toolman]

These engines are not suited for turbos. I would recommend another route. A turbo SHO is just a pipe dream, sorry.

 

[giddyup306]

These engines are not suited for turbos. I would recommend another route. A turbo SHO is just a pipe dream, sorry.

It's been done and can be done again.... I don't want to go supercharged for fear of breaking the half shafts.

 

[AutoSHO]

You will break far more halfshafts with the torque of a turbo than a supercharger. Ask Tim (toolman), as he would know. He's the only one on this board with a turbo SHO... I think his first post was sarcasm.

 

[NotSoSlowSHO]

 

[twr]

You're worried about breaking half shafts with a Supercharger?? You're much more likely to break a lot more things with a Turbo.

No offense, but talk is cheap. Meaning, we've all heard "I can turbo my SHO for under a grand" There are 2, maybe 3 turbo SHO's running around the USA, as compared to maybe 2 dozen (probably more) supercharged cars.

 

[giddyup306]

You're worried about breaking half shafts with a Supercharger?? You're much more likely to break a lot more things with a Turbo.

No offense, but talk is cheap. Meaning, we've all heard "I can turbo my SHO for under a grand" There are 2, maybe 3 turbo SHO's running around the USA, as compared to maybe 2 dozen (probably more) supercharged cars.

Yes because a SC has much more low end than a turbo. I'm worried about the launch. No I've never heard "I can turbo my SHO for under a grand". But for $5000 I definately can.

 

[twr]

Actually the opposite is true with a centrifugal supercharger (RPM vs. boost) The engine doesn't start screaming until 4k rpm. A roots type blower (positive displacement) will give you a lot of bottom end grunt, but there is only one SHO that has a setup like and it's very difficult to make it work do to mounting restrictions.

If you are worried about breaking things, then keep the boost under 6 psi, but even then with a turbo, you're bound to break something since boost comes on pretty quickly. Since a centrifugal supercharger's boost is depend on engine rpm, the boost comes on very smoothly and you won't see full boost until redline.

Whatever you decide to do, I hope you do it and you're successful at it.

 

[AutoSHO]

As Terry said, centrifugal supercharger equipped SHOs do not produce any boost off idle to speak of. Until the motor gets to about 2500 rpms or so there's no difference, then smoothly from there to redline boost builds linearly to peak (typically 6-18 psi, depending on how crazy the owner is). A turbo, on the other hand, has been found to reach full boost by as low as 3000 rpms, making a lot more torque than a supercharger does. As you can see from Tim's dyno numbers, he is making 430 wheel HP, and a whopping 412 Ft. lbs of torque. Compare this with Pat M's numbers (15 psi Vortech) of 445 whp, and 325 Ft lbs of torque, and you can see how a turbocharger is going to break a lot more drivetrain components.

 

[Toolman]

I have only broken 2 halfshaft and 2 third gears. I am kind of proud of that I launch crazy soft though, and am very nice to my trans, and stay in low boost most of the time, but oh well.

 

[munkee]

As far as headers go, I think everyone has just used the stock manifolds. I am almost finished with my manifold template, I can post pics of it when I'm done if you want. I don't have the wastegate yet but it's pretty self explanatory where it will come out at. I have a turbonetics 62-1 turbo that I am going to use, which might be a little on the large side. I don't know if you have seen pics of the turbo setups yet or have an idea of where to mount it. I am mounting mine closer to the engine than I have seen on the other two which will require moving the coil pack and shortening the neck on the t-stat. I still have to test fit everything too. Some of the tolerances are a little tight and might have to be dealt with but I think it will work. Another location I was thinking about is in the corner where the A/C condenser is. If you didn't mind getting rid of your a/c, that might be a good location for effifiently running a FMIC. I haven't done any measuring but it might be worth looking into. Try running a search to find more info that's been posted previously.

 

[Chris Benvie]

Giddyup- Where are you getting your information from? I would try to find another source as your current one is very unreliable.

I am one of the supercharged guys with 399whp.


There are only 2 soon to be 3 turbo SHOs that we know of right now. Its not an easy thing. And if you think it is, you got another thing coming. EVERYTHING has to be custom fabricated. Be expecting to pay upwards of $20k to get that car done.

For $5000, you definately can't. Or it will be the cheapest worst turbo setup known to man. The engine building alone will cost you half of that.

 

[freeze]

you can do it for 5 grand if you do alot of the work yourself.

 

[Chris Benvie]

you can do it for 5 grand if you do alot of the work yourself.

Really? Have you done it? No. So don't make general comments like that.

anybody can slap a turbo on a car, but how long will it last? SHOBOOM within a few days.

Ready for my short generalization?


Motor Build $2400 done right (forged pistons cost $1200)
Trannybuild/Quaife $2000
Tuner $500

Well theres $5000 right there. Wheres the rest of it? Turbo, piping, intercooler, not to mention all the custom rewiring athat will need to be done. Along with building the rest of the car to handle it. Your looking ATLEAST $10k in the motor/tuning/turbosetup alone.

Please don't try to argue this point with me as I and many other know better and will continue to prove your point wrong.

Giddyup, if you really wanna do this start saving now. BTW is your car an MTX?

 

[Toolman]

Chris, I think freeze is talking about the turbo and engine portion alone, not the suspension, brakes, trans, etc. (granted it would be a low-boost, probably non IC'd unit, but don't get me started about the worthfulness of that). Trust me, he well knows all that goes into building a turbo SHO 9as stubborn as he may be - BTW, he is my older bro ).

I agree, as can be seen by my very extensive post on the subject a few months back, that you will be out AT LEAST 10K to have a reliable turbo SHO that can handle the power appropriately. As far as forged pistons go, $1200 is a good deal more than you should pay.

 

[freeze]

it's not a general statement, you can do a turbo setup for around 5k or so. Toolman is right I am just talking about a turbo system not everything else. but if you payed $1200 for pistons then that would explain the 20 grand you came up with

 

[Dr. Tweak]

Chris, I think freeze is talking about the turbo and engine portion alone, not the suspension, brakes, trans, etc. (granted it would be a low-boost, probably non IC'd unit, but don't get me started about the worthfulness of that). Trust me, he well knows all that goes into building a turbo SHO 9as stubborn as he may be - BTW, he is my older bro ).

PWN3D!!!

 

[munkee]

I have done tons of parts shopping etc. and have come up with $11,750 to rebuild my 90 for 12 intercooled psi. That includes rebuilding the motor, suspension, and brakes, repaint and engine management etc.. . It doesn't include 6 grand for a new gearset, any dyno time, or any labor costs. I will be doing all of the work myself. If you were a savvy shopper, you could install the turbo on a rebuilt engine and get it running and tuned for $4000, maybe even a little less. Good luck driving it very far though. I know this because it was either get my turbo going or get the ESC this year, and I chose the latter. However, if your not willing to eventually spend a lot more than 5000 on the car, then theres not much point to doing it in the first place. The biggest chunk of change your going to spend (at least over time) is going to be on the trans. Like Chris said, start saving now.

 

[Chris Benvie]

PWN3D!!!

I don't know about owned. But he did get the point across.

 

[SHO--ripper]

We'll see if a SHO can be turbocharged for under 5 grand :evil_gri:
Does that include price of the SHO?