stormtracker

From reading numerous forums, I know that you have to change several components to turbo a 280zx...but I am curious as to why? People seem to just throw turbos on newer vehicles w/o replace the alternator, oil pump, injectors...

Don't get me wrong. I am willing to change all of the parts necessary (I have started collecting them), I just like to know the reasons for the changes. I am interested in the tech behind it all.

Chris

NismoPick

Oh look at that... we have a Sticky to answer these questions.

https://www.zdriver.com/forums/240z-280zxt-s30-s130-tech-tips-275/turbo-swap-ticking-people-off-since-2003-a-19638/

stormtracker

Yes...I have read all of the post in the sticky...and then some. What I am interested in knowing is not contained in them. As I said, I completely understand what parts are required/recommended. And I am not interested in swapping in a turbo motor, as I am doing this more as an educational experience. I am a 40 y/o father of two that works in a trauma center...I am not wanting to build a gadget street racer. Instead I am wanting to learn a lot more about the L28, and the theory/mechanics behind turbocharging the engine.

If this is not appropriate for this board, I will delete the thread. I am guessing that anybody that has the knowledge had to ask questions to learn it at some point...everybody was a novice at some point. I think that people tend to forget this sometimes.

Chris

hoov100

ok i have one quick Q? what do alternators have to do with turbo's?



the reason most people usually just throw a turbo on it and tune it, is either because they are stupid or they are doing it on such a vehicle that doesnt require these "upgrades" to make it run properly as in the injectors are big enough from factory so they dont need to be upgraded when boosting, you should really have to put in a bigger oil pump unless yours is about to die or the motor your putting the turbo on has oil pump problems. its a fact turbo's do require oil, but not so much that you will see a pressure drop.

its a fact, that a few new cars today can almost litteraly have a turbo put on and tuned using stock injectors ooil pump....etc

NismoPick

280zx turbo alternator puts out 5 more amps @ high speed than the n/a.

280zx turbo oil pump has a higher output pressure / flow than the n/a.

280zx turbo injectors flow more fuel than the n/a... the ecu's are NOT re-programmable, so you can't just "tune" these cars for a turbo (OBD-II cars can be tuned... like Hoov said).

FubarI33t

Just for the record. Not All turbos's are oil cooled. Like my new kit for my S30. Remote mounted water cooled turbo. Comes with it's own waterpump. Resavor, and radiator with elec fan. Plus. No IC needed due to the exhaust is cooled some before it gets to turbo, also charge is cooled down to the same as a IC before it gets to intake. So under hood is cleaner, more N/A lookin. Boost is just as high and as responsive as a manifold mounted turbo. Hot damn I just leaked out plans for my S30. Ooops. If only ya'll knew.

NismoPick

^^^ The primary reason for oil to the turbo is to lubricate. No oil = very short turbocharger life.

snwbrderphat540

you doing a remote mounted turbo???? sooo much plumbing!!!!!

NismoPick

Rear mounted turbos have their pluses... as long as it's done correctly, the only neg side is plumbing it all... and usually adding an inline oil pump to drag the oil back to the pan.

hoov100

he was asking about why people just slap turbos on new cars, so i responded.

NismoPick

I know... I was responding to his first question:

stormtracker

Yes...thank you NismoPick...that's the type of information that I am looking for. I downloaded a copy of Corky Bell's "Maximum Boost" that I found...very good reading.

It's obvious that the whole turbo-ing process was very thought out by the engineers at Nissan...there wouldn't be so many differences in cars of the same year if it wasn't. Either that, or there was a lot of drinking going on at the Nissan R&D facility. That is what I am wanting to explore.

Chris