rioninja

I have nothing to do with this company, but the PRS-4 standalone is something i think everyone should give serious consideration to.
http://www.perfectpower.com/article/article.asp?id=5
The software is free to download and mess with, and there are a ton of good articles on the site.

Im going to be buying one myself in a few weeks, so i'll let you guys know how it works out. I have an old PM5 ecu which i've gutted, and i'm gonna install the PRS4 inside the casing, along with a small fan. I plan on using all the stock honda sensors and wiring harness, and making it a plug and play setup.

saso

My shop sells it , its really good from what I see.

KC GSR

so how much is it?

CovertFI

"Do I need wasted spark ignition?

Answer: It eliminates the distributor, but needs TWO pickup points. It uses multiple coils, and as such delivers a better spark, specially at very high RPMs. The ECU cannot do wasted spark."

this sucks for us right?

CovertFI

This is sweet


The top of the range engine management system with the following features:


2 maps, each 765 sites.
In 4, 6, 8 cylinders applications
Up to 10 000 rpm at 8 cylinders
8 built-in injector drivers up to 6A
Idle control and driver for a 2 wire idle motor
CAM switching and driver
Fuel pump activation
Lambda close loop control
Throttle and rpm calibration: chose your own sites
Temperature and manifold pressure calibration to any external device
Retards and advances from a base point
Easy to tune
Wasted spark on normal ignition
2 trigger inputs, level settable, polarity adjustment
Boost control or fan control
RPM and boost fuel limit
Max boost and rpm recording
Alarm output
Turbo bag compensation option
Fuel pressure adjustment
Acoustic warning
DOS and Windows tuning

Assigned Functions:

Water pump activation and set point.
Extra boost injection activation.
Fan control output
Boost control output
2/3 wire idle monitor output
Nitrous Activation
Camm switching output

rioninja

Well, the "ECU" is just what they called their prior standalone. The current PRS can do wasted spark easily. Looks like all you would need is a set of coil packs from a DSM or RX7.
For the time being, i plan on using the entire stock honda distributor. The stock dist is really simple: its got 3 pickups, coil, and ignition module. All the ignition module is, is a relay. It has five wires:
1]12v + in
2]12v - in
3]12v out to the coil
4]tach signal out
5]low voltage trigger signal from ecu

So in actuality, all you need to use is a single output from the PRS to use the stock dist. The distributor itself handles the spark distribution like it was designed to do.

And SASO, which shop is it your talking about? is it your shop, or just a shop you go to?

CovertFI

so you are getting one for sure?

DirtyLude

Actually, there's nothing exciting I can see about it. It sounds pretty standard. It has a pretty high resolution fuel map, but just those basic specs leave alot of detailed technical questions unanswered. It really all depends on peoples experiences with it and how cheap it is. Let us know how it goes and how much it all adds up to.

CovertFI

it is 600 bucks

DirtyLude

Sounds great then. I might get one for next summers track car if RioNinja gives it good reviews.

rioninja

definatly getting one for sure in a few weeks. I've been emailing them with my questions, and have been pleased with the replys.
You can download the software and the manuals for free. The PRS manual is not available for download yet. However if you download the manual for their older "ECU" system, it is very easy to understand and provides a wealth of info. If the PRS book is half as good, then installation should be easy.

Cramerox

what are the applications for thise model?

Hayasa15

What would make this one better than hondata, aem or any of the other standalones out there?

Etylorcen

Is it plug in and play? Do u get base maps?

CovertFI

like 600 bucks less

rioninja

Not plug and play. They say they have wiring diagrams for over 400 cars, but they wont give them out if you didnt purchase a unit. Personally, i plan on using the entire stock Honda wiring harness and all the stock sensors including the distributor, like i said above. There are base maps available, but i'd imagine they are pretty rought and would still need some setting up to run.
Once i get mine installed and half-assed tuned, i'll have a nice set of maps to give out.

Something like Hondata is definatly the way to go if you need your looking for simplicity. But if your looking into something like haltech, or electromotive tec2/3, this is looking super atractive.

TheShocker

Hmmm

ttt