Sa22c_guy

I need some info, I tried doing a search but I can't find anything good. I have a s5 n/a and I want to turbo it. I know these are higher compression engines but if I did this, A: wat kinda boost could I run roughly, B: would this damage the engine in anyway and C wats your ups/downs on this, thx.

p.s I know theres a 1000 different ways I could go about doing this but I dont have the cash and this would be an ongoing winter project that would take me till next spring thx

RotaryResurrection

iTrader: (8)

Reasons not to do this:

1) an already tired engine (used stocker with over 100k) doesn't need to see more stress.

2) for the cost in custom parts you'll need, you could have almost justified the "proper" swap.

3) you'll have ghetto looking adaptors, hoses, and pipes in the engine bay.

4) you couldn't have much fun anyway...6psi or so at best to be safe.

Read www.rotaryresurrection.com/turboconversion.htm for more info. Not saying that it can't be done, just that it isn't worth fooling with in reality.

poor_red_neck

There is no way in hell you searched and didn't find anything, as this comes up 5+ times a week.

http://www.aaroncake.net/RX-7/naturbo.htm

Sa22c_guy

I got the aaroncake page, thx

Sa22c_guy

sorry forgot to mention I already have the aaron page, and the engine was rebuilt and ported right before I baught it, it currently has 15 000kms on it

Sa22c_guy

sorry forgot to mention, the engine was rebuilt and ported right before I baught it, it currently has 15000kms on it

Sa22c_guy

whoops, page took to long to load so I did it again

Parastie

Why not do something different supercharge it instead?

SonicRaT

iTrader: (6)

Sucks, i've done it for under $1000, which is about 1/5th the cost my full conversion cost me (ahh i hate that car). It's not all too expensive. Turbo and AFC, and the intercooler are the most expensive parts.

poor_red_neck

Supercharger: 3K
carb, other modifications: 400+

Getting the same amount of power as a turbo'ed N/A? Priceless.

Parastie

Why would you pay 3K for a supercharger? I'm not talking about a kit. By one of ebay for like $400! It'd cost probably the same as a turbo conversion.

Someday, probably around the fall area i plan on starting an SC project...maybe sooner depends on how much it costs to fix other things.

totallimmortal

theoreticly a properly built and tuned high compression turbo motor should makemore power with less boost. high compression with forced induction isn't bad its just much harder to get to work right. I've seen a honda with 13:1 compression run 30lbs of boost with 116 octane race gas and put 583 hp to the wheels, thats a fully built race motor but it proves it can be done. I plan on doing mine the expense isn't much at all, as sonicrat said 1000 bucks sounds about right if your pretty good with cars but if your not i wouldbt attempt it, it won't be as easy as bolting a turbo kit on, some of the parts you need don't exsist so you might need some custom work, but you should be able to find hundreds of good threads on this maybe you should try your search again

RETed

$400 for an SC from eBay?
Where?

$3k for a SC for your NA?
You know you can get a Turbo II for that price?

20psi with 13:1 CR's?
You do realize we're talking about rotors, and you're talking about pistons?

It's not impossible to turbo the 9.7:1 rotors, but how many of you have done it?  I'd bet next to nil.  Higher compression rotors makes for less safety buffer against detonation, and I'd like to see you turbo some 13:1 rotors (if there are such beasts)...with a $400 eBay SC...with a $3,000 budget.


-Ted

stacher

My turbo on my 91 vert is 80% done. It was rebuilt about 1000 miles ago and it is mildly ported. Most of the emissions were removed. I gave myself 45 days to complete the project. I am currently running the intercooler pipes. I still need a downpipe, and to hook up my blow off valve, boost controller and boost gauge. I also need to figure out some vacuum lines. I am shooting for April 15. I have spent about $1200 on the conversion so far. I plan on running 10 PSI. If you need any advise send me an E-mail.

poor_red_neck

LOL

couldn't resist...
https://www.rx7club.com/showthread.p...hreadid=289791

Done on a S5

Steel

OH yeah? Show me. And i dont mean one with 200k miles that's got a bad case of car-cancer.

totallimmortal

most Turbo IIs i see aren't much more thank 3k

RETed

Oh, you don't want me to comment in that thread...


-Ted

RETed

We went through a couple of blown motor Turbo II's for $500 or under.
Sunroof might've had rust problems, but they were STRAIGHT chassis.

I knew a guy who haggled a perfectly running '87 Turbo II for $700 and 130,000 miles on the OD.  It was one of the STRAIGHTEST chassis I've ever seen.

Sure, most of them are in bad shape, but there are gems out there.
Cali is notorious for finding them, since most don't pass smog anymore, and owners don't want to pay to get them to pass.


-Ted