what all will I need to run hondata on my 99Si.

allstokhonda · Post by **allstokhonda** » Sat Nov 15, 2003 8:36 pm

I'm building a darton sleeved b18c1 w/84.5mm 9.0:1cr je pistons, eagle rods,built b16a head. etc.etc.etc. I plan on boostin about 15-20+psi. i'm gonna run 750cc inj.

DaX · Post by **DaX** » Sun Nov 16, 2003 7:23 am

are you asking what other aftermarket parts besides hondata you'll need to run a hondata system?

Outside of the turbo, you'll need larger injectors, an 3 bar map sensor, and a laptop if you plan on datalogging. Hondata does not make use of a rising rate FPR [FMU], so keeping your fuel delivery system close to stock is fine, along with your ignition system.

allstokhonda · Post by **allstokhonda** » Mon Nov 17, 2003 8:27 pm

sorry, I wasn't very clear with my question. What I ment was. To run hondata on my car what will I need. Cause a friend of my had a turbo 99si and he had hondata. If I remember correctly he had to have a different ecu (I think it was a p28). an obd2-obd1 conversion.plus hondata and all it's componets. like boost option and 3bar map. and he had all the goodies like 3step rev. but he didn't have any of the dataloggin stuff. I think he had the s200 system.

DaX · Post by **DaX** » Tue Nov 18, 2003 5:42 pm

To run S-200 with boost, you'll need to get an OBD1 ECU [with VTEC]...I'd get a P72 OBD1 GSR ECU if I were in your situation, so you can still use the knock sensor and the secondary runners. You'll need an adapter harness as well if this is going in an OBD2 car.

You'll need to purchase the boost option, and you can use the stock map sensor up to about 11 psi, but after that you must upgrade to the 3 bar.

The rest of the stuff isn't necessary but is nice to have. Browse around www.hondata.com ...there's answers to LOTS of questions there.

vspec sir · Post by **vspec sir** » Sat Apr 17, 2004 11:05 pm

damn, this answers my question. It sucks to have an obd2 car. I thought I could have affordable fuel management for under $800.00 or so. but im looking at $495 (s100 w/boost) plus the cost of an OBD1 P72 ECU, Plus Dyno Time, and tuning.... sheesh. looks like i gottah save a bit more.

vspec sir · Post by **vspec sir** » Sat Apr 17, 2004 11:07 pm

I realize the s200 comes with a hella lot more goodies then the S100, but I dont have any idea on how to tune the system itself, with that in mind is there any reason why i should get the S200 system. I'm also not a hardcore racer so you wont find me at the track every weekend.

DaX · Post by **DaX** » Sun Apr 18, 2004 9:22 am

S100 will be fine. There are other affordable fuel management systems out there if hondata is out of your price range. I went with hondata because of the reputation and the support they offer...a company that stands behind their name.

vspec sir · Post by **vspec sir** » Sun Apr 18, 2004 1:22 pm

I have another question...

First I will have to aquire a obd1 ecu. someone told me that I can use a P28 ECU, isn't that ecu from a 92-95 sohc vtec motor? will that ecu still work with my car? 00' civic si (b16a) or should i look for a P72, or P30?

DaX · Post by **DaX** » Mon Apr 19, 2004 7:20 am

A P28 will work. Only advantages of a P72 are having a knock sensor and the abilities to control the secondary runners on the intake manifold. You can even use a VTEC ECU [for example, a P28] on a non-VTEC engine if using Hondata...you simply set the VTEC point to an unattainable RPM value, thus never entering the high cam maps.