One thing I didn't mention and I don't see anyone else talking about is tuning.

How much experience do you have with tuning a setup like this? If it's none, then you'll soon have experience rebuilding an engine.

 

i have a friend that tuned an sr with t518z with a power fc (jon) and his car is about 11.5 to 1 all the way across the board. i just wont mess with the igniton timing

 

Keep in mind that tuning a rotary is a bit different then a piston engine. And things like "not messing" with the timing will blow the engine.

 

well as long as theres no knock on the map that comes on the power fc with the setup that i have it should be fine.....correct?

 

Absolutely not.

A tune is car specific.

 

Why would we talk about tuning Aaron? Obviously this fella knows exactly what works, how to use it and how to get everything needed for "no money". He's probably going to potty train someones kid for the tune. I see no reason let him know ahead of time............he's obviously ontop of everything.........

 

at no point in this thread did i say that i knew everything or was "ontop of everything" just parts for cheap. but other than running safe afrs and as little knock as possible, temp, injector duty what should i be careful of?

 

Didn't say it - but indicate it with disclaimers. In my books they're one in the same. Plus, coming off as a complete retard talking about your cheap acquisitions doesn't make you seem like the type of person anyone would be willing to help.

You should be careful of everything. You should have someone with at least a little experience tune it - simply plugging in the PFC and dialing in some rich AFR's hoping that it doesn't blow up is not a good idea. just given the fact that you're saying keep knock as low as possible scares me.............knock is kept low by actually tuning it! Not to mention it only takes a couple of hits to pop an apex seal.

Start reading up and learn everything you can, then take it very slowly.

 

"as little knock as possible"?! How about no knock? If you are getting knock in a situation, then it's only a matter of time before you get a good big pink and detonate the engine. Tuning a rotary is tuning to avoid knock. Unlike a piston engine where you tune until you may get a bit of ping and then dial it down, you have to tune a rotary to avoid that situation. Knock sensors won't help you. In this case it's about having prior experience to know what doesn't work. And many people find out what doesn't work when they are rebuilding their engine.

The T78 is going to be a interesting turbo to tune as a first try. It's efficiency curve is poor until halfway through the graph at which point it comes on like a freight train. You'll get low boost tuned fine and then when you crank it up a few more PSI you'll be running 15:1 if you don't know how to anticipate it.

 

i almost bet there is no one fairly close to tune my car. i know lantz from freelance but when i talked to him i remember him saying that the person he knew was closer to nyc. i havent seen many experienced car tuners around other than domestic cars. maybe someone can help with a good shop thats pretty close and has a dyno to tune with and knows rotarys.

 

so i test fitted everything today. the only clearance issue i had is the down pipe. there is no room for it at this point. the manifold brought the hot side of the turbo about a half inch in front of the intake so there was no clearance problem with that. i was thinking about going to an fd intake manifold, ive searched and only came up with s5 conversions. would it easier to swap both the upper and lower to fd or just the lower. i thought both but then i realized id have to figure out some way t operate the oil injector rod, unless the fd upper manifold will bolt right up to the s4 throttle body. pretty much the easiest path possible. there was other problems like the engine harness placement and water pump neck may interfere with fitment but clocking it may solve the problem and if not i can try another method.

 

how about i trade you a garrett T70 .70 a/r front and 1.00 divided hotside for that t78 - then you dont have to worry too much about fitment

 

im looking for a gt35r

 

maybe you should learn how to paint first.

 

its getting vinyled.

 

so trade me for my turbo its the same size of a gt40

 

and non ball bearing.

 

hahaha loving the pic with the middle finger

 

Let us know how tuning it goes... or did you already blow it up?

 

he already blew it up.

 

not blown up...not on the car yet since its cold as hell in ny. i do have new info though. apparently the guy that i bought that turbo off of said that the guy that owned it before him had the t78 tuned with the power fc that is in my hands now. i guess that fd motor had a race port and he did drag with it or something. will the maps be close enough to use the t78 on my car even though it will probably be super rich?

 

QFT.

Race port ≠ stock port

 

will timing be close. i know ill obviously have to make afr adjustments

 

Depends on how much porting was done. Only way to find out is to hook it all up and try it.

 

rotary ressurection street port