2000 turbo teggi - Honda Forum / Acura Forum

c2autpinc · 10-06-2006, 09:29 AM

I've bee reading a lot on this forum and through other links, so I have searched, and I am going to try to keep this short. I've done lots of turbos but never an OBDII honda. I'm not worried about any of the fabrication, just the fuel system and management.

What I knew and have gathered:

An FMU works, but only to 6 psi of boost about, I want more than that and don't want to change injectors with every tune up.

I know a kid who has burned ships for OBDI civics so i was contemplating doing the OBDII -> OBDI conversion. (What else does this effect, I know that it removes one of the O2 sensors, what else? Is there something better to use besides that?)

The MAP sensor can read up to 1 bar of boost correct? (since it's a 2 bar map i thought and the 1st bar is ATM pressure). I've seen check valves used in the past but then how will the car measure the boost?

Planning on using a SAFC for fine tuning

Using 450cc injectors, prolly DSMs, with a Walbro pump. Unsure of whether or not there will be a need for a resistor box in this situation.

I also know that turbos need to run the ignition more retarded to prevent knocking, I know that chipping should be able to do this but what else is there incase we decide not to chip.

Any help is greatly appreciated! There was a whole guide to turboing but it applied to OBDI, there seems to be a lack of information for OBDII either because it's harder or not as many people have it, idk, but these are a few questions I could use answers to or at least get pointed in the right direction to some more reading material... what have all of you done in the past

Thanks
Chris

RZFD · 10-06-2006, 11:18 AM

All that you need to know is that FMU's suck. Convert to OBDI and get Chrome, Hondata, or NepTune and let a good tuner work his magic. If you're going to be running more than 10-11PSI of boost you need to get a 2 bar MAP sensor wired up It's a GM part I don't have teh part number handy but you can usually get it and the pigtail at your local auto parts store. You will need the resistor box if you use the DSM injectors.

c2autpinc · 10-06-2006, 11:31 AM

Thank you for the response and yes I know that the FMU sucks. Also, did you mean convert it to OBDI since it is already an OBDII? Does it matter what OBDI ECU i use? I'm not a honda guy but I would assume that there are different ECUs. If i go this route, which I probablly am, will chipping the ECU be able to retard the timing?

Thanks again
Chris

Snoopy · 10-06-2006, 01:24 PM

use a p28 out of 92-95 civic ex's and an obdII->obdI conversion harness. they are cheap and easily found. have the ecu socketed and chipped with hondata, crome, whatever. then have it tuned on a dyno. that way you can retard ignition, add more fuel, etc.

RZFD · 10-06-2006, 03:31 PM

Quote:

Originally Posted by c2autpinc

Thank you for the response and yes I know that the FMU sucks. Also, did you mean convert it to OBDI since it is already an OBDII? Does it matter what OBDI ECU i use? I'm not a honda guy but I would assume that there are different ECUs. If i go this route, which I probablly am, will chipping the ECU be able to retard the timing?

Thanks again
Chris

Oops, typo! I fixed it. If you chip the ECU and have it tuned you should have fully programmable fuel and ignition tables as well and some aux. outputs that you can use.

c2autpinc · 10-06-2006, 04:34 PM

Since we don't have a dyno are there timing and fuel maps out there that can at least get it pretty close for a basic setup We were then planning on running the SAFC to fine tune it

Snoopy · 10-06-2006, 05:20 PM

Quote:

Originally Posted by c2autpinc

Since we don't have a dyno are there timing and fuel maps out there that can at least get it pretty close for a basic setup We were then planning on running the SAFC to fine tune it

there are basemaps available for a lot of popular setups. but they should only be used as a base to get you started. you wont need that safc if you get something like hondata or crome. they handle everything that safc does and a whole lot more.

c2autpinc · 10-06-2006, 06:38 PM

but then don't you need to keep re-burning chips? I was also seeing stuff where you use USB ports so you can tune in real time. Also when I plug the ECU thats OBDI with the jumper harness do I need to modify anything else in the wiring harness underneath the hood?

Thanks for all the help so far

Snoopy · 10-06-2006, 07:28 PM

the older hondata s100/s200 units and crome you have to burn a chip. but while tuning, you use an emulator you plug into your laptop and the socket in the ecu so you can make changes on the fly. once you get your completed tune, you burn that onto a chip and install it into the ecu. the new hondata s300 and aem ems have usb connections so you dont have to burn chips anymore.

www.pgmfi.org has some good info you can go over

c2autpinc · 10-08-2006, 07:34 AM

Thanks for all of the helpful info. It looks like we're going to buy the Hondata s200 since we are going to need to chip Hondas a lot. That cost is just under 300 bucks then a chip burner, there was one on the post above for around 70 bucks and then buying the resistor and chip socket and all that jazz. Then we should at least be able to get a good base map from that. Those are all the components that I should need, right? Does the emulator come with the Hondata for fine tuning the maps on a laptop before burning the chips? Also if i use the jumper harness to convert to OBDI frob an OBDIIb are there other things that need to be changed in the wiring harness? I know that one of the 02 sensors will not be used, so do I just leave it in there, take it out or does it not matter? Are there other things that need to be changed?

All of this help is greatly appreciated.