Turbo Newbie Questions

[Bejiita]

Well hello everyone, I recently purchased a 1997 Talon ESi and know nothing about it. I have been a rotary guy my whole car life so Im not really too familiar with pistons let along FWD or Turbo stuff so be forgiving please. I have a T3 I believe turbo off a stock turbo RX-7 and have seen some manifolds on ebay for the car and was wondering how hard it would be to actually install it. My friend had a turbo charged non-turbo eclipse and said he has 480CC injectors and a walborro 255 fuel pump for me. Do I need engine management or can the stock ECU make up for this? I only plan on running peak 6LBS of boost so will I even need a intercooler. How hard would this acually be? Any advice. Thanks so much in advance.

 

[winterftbl]

yes you would need some kind of engine management because your stock ecu wont be able to compensate adequately, also you probably wont need an intercooler for only 6 pounds but if you go higher you will. As for difficulty it all depends how good of a custom fabricator you are because that is what you will be doing.

 

[snowborder714]

To do a N/A to turbo conversion is not the hardest thing to do, but will take a good bit of work. I would check out these forums for more information on that - http://www.dsmtuners.com/forums/forumdisplay.php?f=31.

As far as the 480cc injectors and Walbro 255, you wouldn't necessarily need an engine management program. You wouldn't need anything (except probably an AFPR) for the Walbro 255, but you'd need a way to control your injectors (such as an S-AFC).

And you also questioned about whether or not you'd need an intercooler. The simple answer is yes because you're going to be converting your ESi to a TSi. If you didn't figure it out, your car is N/A and you can't just bolt up an exhaust manifold and turbo from an RX-7. There is a lot more than goes into it so check out the 420A forum link I posted above.

 

[TuRBoTaLooN]

As mentioned above, you will need a fuel pressure regulator as the 255 pump will overrun stock fuel pressure. slightly bigger injectors would be recommended (550's would be perfect). You could probably get away with tuning via S-AFC OR run a GM MAS and MAF-T setup. Also, you should just get an intercooler. You can get a stock DSM one for like $20 or pick up one from a mkiv supra for $75 and fab up some IC pipes. You will also need a blow off valve that recirculates before the MAS if you don't go the GM MAS/MAF-T setup. You will also need to hook up oil and coolant lines for your turbo. It will be a lot of work.

 

[Bejiita]

Alright thanks guys, I was looking around and the RX-7 turbo wont fit so I am getting a stock Mitsu one off my buddies turbo talon. He has the 4G63, sorry if thats wrong I dont know engine numbers. But I was looking on ebay and the 420A turbo manifold is small and flat and the one he was going to give me looks more like a header, will these fit? Sorry Im a rookie

 

[turbosax2]

Actually, you DO NOT need an AFPR. The FPR's on 420a's don't overrun like the 4g63 FPR's do. But you should rewire the fuel pump.

Is your friend giving you a turbo or exhaust manifold? The exhaust manifold won't work on your car.

 

[Bejiita]

Both he was going to, are the bolt patterns on manifolds different? And Im probably going to get flamed for this but if they arent too different can I re-drill holes? :-/?

 

[Bejiita]

Anyone?

 

[turbosax2]

Anyone?

Don't bump your threads.

This guy couldn't do it.
http://www.dsmtuners.com/forums/showthread.php?t=39041&highlight=420a+manifold

 

[Bejiita]

Oh sorry didnt know there was no bump rules here :-/ sorry. Well I dont want to go full out performance cause that costs a lot. Would it be better to fab up a turbo system or do full intake and exhaust and run like a 50 shot? Whats more cost effective, what would run faster whats more reliable. Thanks

 

[snowborder714]

Please don't bump your thread. It's against forum rules.

Give people some time to respond. Not all of us live on this forum. A lot of people are probably still at work. 2 hours to wait for a response is nothing at all...let it go for at least a day or two and do some research in that time. If you find anything new or find another question, then post it up so people can continue to help you.

Edit: I hate having crappy internet! Otherwise my post would've been in ealier.

 

[turbosax2]

Oh sorry didnt know there was no bump rules here :-/ sorry. Well I dont want to go full out performance cause that costs a lot. Would it be better to fab up a turbo system or do full intake and exhaust and run like a 50 shot? Whats more cost effective, what would run faster whats more reliable. Thanks

Ok, now this has gone past the point of my knowledge. I don't know much about non-turbos. But the best advice I can give you is to search the 420a forums. I know for sure that the "turbo or nitrous" question has been asked MANY times.

 

[KazooGS-T]

Ok people, please stop feeding this guy misinformation. For one, the 420a equipped cars, do not have a Mass Air, we run soley on a MAP sensor. Your Rx-7 turbo would work, if it is a t3 flanged. You will need to buy a new exhaust/turbo manifold. The heads on the 420a/4g63 are completely different. Also, there is no need for a larger FPR, or a fuel pump re-wire. That's completely unneccessary for a 420a equipped car. You will need a missing link or fuel cut defender though. Good luck, and happy boosting!!!

 

[Bejiita]

Actually I found out the turbo wont fit I got to piece it all together, which wont happen for a while. Still need to do a solid axle swap on the front of my 4runner and rebuild and boost the rx7 so I guess next winter will be the time to tweak with the DSM stuff. Thanks guys