that damn vortech FMU & MAP check valve - Honda Forum / Acura Forum

myflysi · 02-28-2003, 09:14 AM

yes yes i know, hondata s200b and some rc 440c's with proper tuning...im on my way to that route as soon as i get some damn tax money back over the next month or so- BUT for now, what do I have to look out for while running the vortech FMU and the basic MAP check that came with the RevHard 2C kit---precautions, recommendations, etc. etc..?! i didnt even want to run the car until i got the Hondata and the other stuff, but its gonna be a few weeks, then i still have to find a damn hondata dealer to have it tuned!!! uoboarder i'd really like to hear from you on this one too- thanks, peace.

civperc · 02-28-2003, 09:52 AM

clean the plugs, and then be checking them every now and then to see if they're getting kinda dark. if they are, then you're running rich enough, but if they're staying pretty clean and not too much grime getting on them, then things are too lean. bascially, there is no real way to tell if you're running too lean with just an FMU and check valve, until it's too late. checking the plugs is kinda "ghetto", but is about the best thing you can do until Hondata time.

in my opinion, I wouldn't be running the car with boost at least until you have the Hondata basemap running. I just don't trust FMUs.

myflysi · 02-28-2003, 10:05 AM

Quote:

Originally posted by civperc
clean the plugs, and then be checking them every now and then to see if they're getting kinda dark. if they are, then you're running rich enough, but if they're staying pretty clean and not too much grime getting on them, then things are too lean. bascially, there is no real way to tell if you're running too lean with just an FMU and check valve, until it's too late. checking the plugs is kinda "ghetto", but is about the best thing you can do until Hondata time.

in my opinion, I wouldn't be running the car with boost at least until you have the Hondata basemap running. I just don't trust FMUs.

civ- any idea how long/far i can run the hondata on stock basemap along with the 440cc's? u wouldnt believe what a bitch its going to be for me to get the car to a certified hondata dealer- the closest is the middle of manhatten at RPM NYC which is also a freakin silly amount of bank because they think very highly of themselves over there (they are really good though lol)....point is, how far do u think i can i drive the car, and how safe is it on stock hondata baseline settings...in case i have to drive a ways to get it tuned and i cant get it trailered to where ever I end up going? thanks again for the help- peace.

civperc · 02-28-2003, 10:22 AM

if you find a basemap matching your set-up pretty decently, then you can run with that for a good while. uoboarder ran (or is still running) his basemap for several months and it drives really well. I wouldn't redline or race too much with the basemap, but you can boost. Basically, if you drive wisely on the H. b.m. you'll be a-ok

: (and MUCH better off than with an FMU

)

myflysi · 02-28-2003, 11:38 AM

Quote:

Originally posted by civperc
if you find a basemap matching your set-up pretty decently, then you can run with that for a good while. uoboarder ran (or is still running) his basemap for several months and it drives really well. I wouldn't redline or race too much with the basemap, but you can boost. Basically, if you drive wisely on the H. b.m. you'll be a-ok : (and MUCH better off than with an FMU )

nice...this made me comfortable enough to go ahead and buy it...question though, you have knowledge of where to check if they might have a basemap that matches my setup? i looked over hondata.com quickly but just might not have noticed anything...also, heard of which guys/companies are currently running the best deal on the s200b setup? i wouldnt mind buying that ecu hondata makes either, so i dont have to run the wire conversion harness as well...sorry for all the questions, but one more lol- have you heard of anything re: the ecu hondata sells vs. getting a regular p28 & the skunk conversion harness? either one better or worse?

uoboarder · 02-28-2003, 01:20 PM

Quote:

Originally posted by myflysi
what do I have to look out for while running the vortech FMU and the basic MAP check that came with the RevHard 2C kit---precautions, recommendations, etc. etc..?! i didnt even want to run the car until i got the Hondata and the other stuff, but its gonna be a few weeks, then i still have to find a damn hondata dealer to have it tuned!!! uoboarder i'd really like to hear from you on this one too- thanks, peace.

Civ was on the money when he said that the base map will do fine. I wouldn't make a habit of redlining the sucker, but I wouldn't be scared to take it to 5 or 6k either.

As for the FMU setup...if you run your 240cc injectors you'd better run a 10:1 (12:1 is overkill) disk in your FMU. Keep the stock fuel pressure between 38-40psi and you'll be fine. The real question mark is your fuel pump. It better be aftermarket. Something that'll flow like 255lph. If you've still got a stock one then don't boost over 3psi. The stock pump isn't much good over 70psi of fuel pressure. Oh, and even if you have a aftermarket fuel pump I still wouldn't make a habit of getting on it.

As for driving a long distance with the base map and RC 440s. You'll be fine. Just don't boost the sucker on the freeway. After all, with the luck that most people have you'll end up wanting a piece of a 3g RX-7 or one of those new supercharged Cobras...and about the time you think you have him or are catching up...BOOM. That's luck for you. As a good rule of thumb, I don't boost on the freeway for much over ~5 seconds. Think about it...is your car a freaking 97 Supra? No. So until your block is built don't push the engine on the freeway. That's when everything gets hot and stays hot for a long time. Pistons start to melt, piston rings go, and the ring lands crack.

You'll be fine on the base GSR turbo map calibrated with your RC 440cc injectors...and make sure your overboost limiter is set low just in case the vacuum line on the wg pops off.

uoboarder · 02-28-2003, 01:25 PM

Quote:

Originally posted by myflysi
nice...this made me comfortable enough to go ahead and buy it...question though, you have knowledge of where to check if they might have a basemap that matches my setup? i looked over hondata.com quickly but just might not have noticed anything...also, heard of which guys/companies are currently running the best deal on the s200b setup? i wouldnt mind buying that ecu hondata makes either, so i dont have to run the wire conversion harness as well...sorry for all the questions, but one more lol- have you heard of anything re: the ecu hondata sells vs. getting a regular p28 & the skunk conversion harness? either one better or worse?

Oh...I would think that the new Hondata ecu will be just as good as getting a P28 with the conversion harness. I don't see anything wrong with it.

As for finding a H map with similar mods to your car... don't worry about that as much as getting a turbo map and calibrating the ecu to your size injector and increasing the %s per column the right amount as said on the Hondata site. Check here:

http://www.hondata.com/techinjectorsizing.html

myflysi · 02-28-2003, 01:58 PM

Quote:

Originally posted by uoboarder
Oh...I would think that the new Hondata ecu will be just as good as getting a P28 with the conversion harness. I don't see anything wrong with it.

As for finding a H map with similar mods to your car... don't worry about that as much as getting a turbo map and calibrating the ecu to your size injector and increasing the %s per column the right amount as said on the Hondata site. Check here:

http://www.hondata.com/techinjectorsizing.html

im using the walbro fuel pump afterhourz gave me with the kit- that ones fine isnt it? drop me an IM ill be on for a while (just PM'd you my SN)

j8e007 · 03-01-2003, 07:59 AM

hey fly...
glad to see that you got your kit. That fuel pump that came with it is an inline. If you need one, there's a groupbuy for $99 (I just bought one).

As for hondata...go with the ecu listed on the site and you can run the baseline until you get it tuned.

I'm doing my install in about another month or so and the certified local hondata dealer (abot 4.5 hours away) is sending me that ecu, s200 w/boost and a baseline map for 780. He's also going to do some minor tuning and dyno for a "reasonable" price. He told me that it'll get me that the baseline will get me to the shop, but don't get on it!

boarder' I didn't know you shouldn't get on the boost on the highway.....is this just prior to tuning?

uoboarder · 03-01-2003, 09:18 AM

Quote:

Originally posted by j8e007

boarder' I didn't know you shouldn't get on the boost on the highway.....is this just prior to tuning?

Yeah, I'd say prior to tuning try to stay out of it. There's so many variables when you decide to run someone on the freeway. I just don't like the idea much. Think of it like this... Which engine will last longer: 1) a stock internal B16 pushing 10-11psi of boost occationally (1 time a day on the freeway against the Camaro SS and 911s), or 2) a stock internal B16 pushing 5psi 2x a day just at a stop light. I say engine 2. Why? When you push the maximum limits of the engine daily then you're going to have trouble. The Honda cast pistons will melt under high heat. That's not good. Throwing in boost or heavy shots of nitrous will raise temps in the cyl. to where you'll get seriously increased engine wear. That's why we hear people saying, "Did you upgrade your cooling system?"

Translation: Don't make Boneville runs on stock internals...especially while untuned. Shorter spirts are better than long stints of power. If its more than a 1/4 run than you're asking for trouble.