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260 turbo questions(I need Opinions)


260zeto

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I have some questions about a turbo build.  I have already read the thread: 

  The Ultimate Turbo FAQ/Beginners Guide

 

 

but i still have some questions that i didnt see covered.  So I have a 260z with an n42 motor with su carbs in it.  Im thinking about doing a turbo conversion, but of coarse I want to know full details of what my options are.  I would only be going for small power gains with the turbo setup(40-80hp?).  I more or less would just like to turbo the motor I have because when i got the car it didnt work and I did a lot of work to make the motor work so now we are buddies.    I was wondering if it would be cheaper to switch my motor to fuel injected and turbo it or just buy an l28et.  I know the l28et is a better motor but I like my motor and i also think i can do it in sections.  By that i mean i can first make the car fuel injected, save up, and then turbo it.  Have any of you personally done this or are familiar with someones work who did do it?  My goals for this project(when/if it happens.  Im in a constant $$$ drought)  is to gain experience building a turbo car, make this the fastest motor ive owned(200hp h22a is fastest so far), make a motor that is fun but not a power machine, avoid creating something thats installed on sunday, destroyed on monday.  I need to throw money into the rest of the car to support that power u know and if i have too much power ill be flying everywhere on the streets.  I use to be driving all sorts of fast cars around and I would just be flying everywhere I went.  Its like hanging out with a horny pornstar and getting with her.  I cant resist using that power if its there.  Anyway I just want to be happy that I got it turboed.  I mean im happy with the car as it stands right now but im always gonna make it better.

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My stock "Blue Turd" 260Z routinely turns in times at S30 AutoX events like MSA very close to top time of the day. The instructors seem to like competing in it.

 

Work on the handling until your funds are better. Get the chassis sorted and prepped first, and learn to drive the car first. Power is the last thing you need to add right now.

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your responses are irrelevant to my question but thanks I guess.  I have taken that into consideration already.  See comments:  "My goals for this project(when/if it happens." and  "I need to throw money into the rest of the car to support that power u know and if i have too much power ill be flying everywhere on the streets.".  I never said i was only trying to turbo the car.  the other stuff i already know how to do so thats why im not asking.  What im asking is:

 

" was wondering if it would be cheaper to switch my motor to fuel injected and turbo it or just buy an l28et.  I know the l28et is a better motor but I like my motor and i also think i can do it in sections.  By that i mean i can first make the car fuel injected, save up, and then turbo it.  Have any of you personally done this or are familiar with someones work who did do it?"

 

I hate the thread mentallity that people have where they think others don't search topics and that they know nothing.  Ive searched prior to this in many different ways, but was unsuccessful.  When you search l28 carb to efi you just motor swaps.  Lets answer the original question FIRST then add our two cents about what we think about the approach and thought process

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  Plenty of People on the forum have gone the turbo route with N/A and Factory turbo Motors with good results.
you could source an l28et or just buy bits at a time and put the motor together when you finally have everything needed to put it together, the mater of cost is really kind of tricky, for instance I bought a complete l28et long block with fuel injectors, turbo distributor ect... for $700 bucks, still wasn't everything i needed but it worked for me at the time.

  MY good friend on the other hand got a smoking deal on a custom manifold/turbo and intake setup for about 400 bucks to put on the motor in his car now,different route, same goal.you're gonna have to plan a budget you can work with and scour the forums for sale thread,Ebay,craigslist,Junk yards, Garage sales, anywhere really, you'd be surprised with the stuff you can get if you know where to look.
 google Hybridz then  L28et into 240/260/280 and or  L28 n/a to turbo conversion and you should get some good results if you can't find anything using the Hybridz search. 

Edited by mildsquare
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Zeto,

 

Since you're planning a carb - efi swap you need some sort of engine management. I'd recommend spending any 'motor fund' money on some sort of standalone ECU.  Once you've gone standalone. it doesn't matter, you can go turbo easily later.

This way you can absolutely step your way up slowly.

 

Fuel system will essentially have to be entirely redone. EFI gas tank need some sort of baffling to prevent pump cavitation.. Your N/A tank doesn't have any.  You could have a sump welded in, with a surge tank feeding the pump for injectors. 75-76 (maybe 77, can't remember) gas tanks are a common swap for this. Your fuel return line, I'm assuming is 3/16", is too small for EFI, so that will need to be swapped as well.

 

Clutch is a biggie. Don't forget about that...

 

Don't get bent out of shape. It's the internet, mate. You asked a what you believed is a specific question, but in reality it is actually pretty vague...

 

"cheaper?" sure. Who's doing the work? What type of parts are you using? What are your power goals even?

 

None of us can answer your questions adequately, because you didn't provide enough information. This, despite said past efforts, shows that you have NOT done your homework. All of this information is easily available, it may just take a couple extra search queries. That's what warranted the previous responses. Many of us have spent days upon days doing research only to discover that there is NO SET ANSWER to the turbo question. Figuring out what's right for YOUR project, well, that's up to you, my friend. Every situation is different. Best get searching..

 

If that small amount of advice was enough to get you angry, you may be in the wrong place.

Edited by OldAndyAndTheSea
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Shed nominee, since searching is not his forte (everything asked is already copiously answered...)

Asks for "OPINIONS" and then gets butthurt when HE GETS THEM!

 

If money is tight, a performance sports car is not in your future.

 

G'bye!

Edited by Tony D
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@cgsheen.  Instead of making smart ass remarks that helps nobody why dont you throw in some info about your swap.  Why did you choose to use the l28et

 

Dude...  That wasn't a smart-a$$ remark - just a very true observation about many people and their Z cars.  Not condesending, not a "put-down", just an observation...

 

I love (no... LOVE!) my L28ET.  But my situation was nothing like yours is.  My L28ET was given to me by my youngest Son.  I had no Z at the time - didn't expect to ever own one.  I had to find the frame to put this engine into.  I didn't have a Z Car with an engine that I had put a lot of work into.

 

My advise would always be to swap an L28ET - that's my thing.  But, I didn't have an engine that I put a lot of work into before this engine appeared in my garage - and thus my advice may mean nothing to you and your situation.  Would I personally turbo a "non-turbo" engine?  Nope.  I'm not that smart.

 

After working on this thing for several years, I've come to find the wisdom that the "old timers" speak of - and I now agree with them.  My true enjoyment of this car came when I got the suspension & handling sorted out.  Now the power that I add will have something worthy to do.

Edited by cgsheen
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"cheaper?" sure. Who's doing the work? What type of parts are you using? What are your power goals even?


 


I clearly said if been working on the car.  If I wasnt going to do the work then i wouldnt be asking about it.  id just tell somebody to do it.  I stated my power goals as well.  If i knew exactly what parts im using then I wouldnt be asking this question in the first place. 


 


 


"None of us can answer your questions adequately, because you didn't provide enough information. This, despite said past efforts, shows that you have NOT done your homework."


 


 


Other people seemed to answer the question with ease.  I have done my homework


 


 


"But it's the first thing they always want to do..."


 


chimming in on someones thread just to say that they pretty much dont know what they are doing is being a smartass. You helped nobody in anyway with that post so why even post it.   I do appreciate the following part where u talk about your own actual experience.  Thats what I'm looking for so thank you.


 


"Shed nominee, since searching is not his forte (everything asked is already copiously answered...)


Asks for "OPINIONS" and then gets butthurt when HE GETS THEM!  If money is tight, a performance sports car is not in your future."


 


If you know where this has already been covered and its so easy for you to find then please link and help.  As for the performance sports car is not in your future, well a 40 year z isnt what people call a performance sports car so ya i guess you are right but since im trying to build a car to my pleasing well ive done it before on the same budget :)  


 


 


 


   


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Wow...instead of doubling down on your arguement you really should rethink what you are saying. You're letting your ego get in the way..

 

If you HAD done your homework, you wouldn't be making this thread asking for advice from more experienced people in the first place... Tony, for example, has forgotten more about z cars than most of us will ever learn.

 

Ask a proper question? Receive a proper answer.

 

Play stupid games? Win stupid prizes.

 

If people don't understand what you are asking, or they can't answer based on a lack of information, is that the fault of the reader, or the fault of the writer?

 

 

 

"Creating a motor that is fun and not a power machine" is NOT clearly describing your power goals. What does that even mean?

 

You're being vague and subjective. I have done this exact swap from n/a carb to n/a fuel injection to turbo conversion on my n/a motor..There is not a black and white, cut and dry answer...There are lots of variables. Like I said before, every project and every budget is different...and you've given us very little information to go by...

 

Before you come back and secure this thread going in the tool shed, please rethink responding in a defensive, hostile tone...Despite what you think, we ARE trying to help you. However, your attitude and hostile responses are making that increasingly hard to do.

Edited by OldAndyAndTheSea
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I have some questions about a turbo build.  I have already read the thread: 

  The Ultimate Turbo FAQ/Beginners Guide

 

 

but i still have some questions that i didnt see covered.  So I have a 260z with an n42 motor with su carbs in it.  Im thinking about doing a turbo conversion, but of coarse I want to know full details of what my options are.  I would only be going for small power gains with the turbo setup(40-80hp?).  I more or less would just like to turbo the motor I have because when i got the car it didnt work and I did a lot of work to make the motor work so now we are buddies.    I was wondering if it would be cheaper to switch my motor to fuel injected and turbo it or just buy an l28et.  I know the l28et is a better motor but I like my motor and i also think i can do it in sections.  By that i mean i can first make the car fuel injected, save up, and then turbo it.  Have any of you personally done this or are familiar with someones work who did do it?  My goals for this project(when/if it happens.  Im in a constant $$$ drought)  is to gain experience building a turbo car, make this the fastest motor ive owned(200hp h22a is fastest so far), make a motor that is fun but not a power machine, avoid creating something thats installed on sunday, destroyed on monday.  I need to throw money into the rest of the car to support that power u know and if i have too much power ill be flying everywhere on the streets.  I use to be driving all sorts of fast cars around and I would just be flying everywhere I went.  Its like hanging out with a horny pornstar and getting with her.  I cant resist using that power if its there.  Anyway I just want to be happy that I got it turboed.  I mean im happy with the car as it stands right now but im always gonna make it better.

 

Sounds like you're trying to take the 'easier' way out, but in the end will be more of a head ache. Yes you can boost your na motor, but right away you'll see limitations in terms of how much boost / ignition timing you can run due to the higher compression ratio, not to mention if it's not in a stellar shape to begin with, you'll blow out a ring sooner than later from the added stress.

 

If you want to gain experience building a turbo L28, follow others' advice and start with an L28et, on an engine stand, so you can enjoy the street able SU's until you're ready. On a budget, having a turbo build to tinker with while driving it is probably not a great idea if this is your daily.

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