Writing this for my friend, please help him out. thank you.

setup
Delsol Si
B18c1
JDM B16a ecu
Skunk2 Manifold
Equal length Manifold
Tial wastegate 6psi
greddy types BOV
t304e turbo
2.5in. charge pipes
johnnyracecar intercooler
2.5 to 3 inch down pipe
3in. full exhaust
RC440's
Walbro Pump
VAFC2
NGK Iridium Spark Plugs

Ran 13.2 @ 107 on 6psi on street tires w/ stock injectors and FMU. Now with Injectors, pump and SAFC it has a terrible miss... please help


When i had stock injectors and FMU w/ stock pump the car would pull the whole time while in boost. When i took the FMU off and installed the injectors, pump it had a bad miss when in WOT. I then installed the VAFC2 and it still has this problem. I set it to -30 across the board, still same problem, and 0 across the board. when boost hits it gets a flat spot and has a terrible miss during the pool. any clue on this? My A/F gauge reads lean diring the miss even when more fuel is added. Thanks for anyone that can help troubleshoot this . thanks.

 

what are the plugs gapped at?

 

-30 is really rich. Check your plugs they'll give you an idea whats happening. The reason why it missed with just the injectors and pump is because you added twice as much fuel. 240-440 is almost double. I'm surprised it even ran. Now you've added the VAFC to control your new injectors. Try -40 to about 4k and add more fuel say -35 towards the top end. Car should run better like this. Make sure everything is connected right and soldered. Fine tune it as needed. Check other peoples settings and you'll get an idea what to use for your own.

 

well its my car and actually i had the pump in w/ stock inj. and FMU also because it would run REALLY REALLY lean up top w/o the pump. if i set the vafc at anything below -27 at idle, it idles REALLY REALLY lean, like almost completely off the a/f gauge, i had bkr7e NGK plugs gapped at .030, and it had the same miss, i forgot to gap the iridiums tho, if anyone can let me know their opinion of the iridiums and boost, please help cuz i know not to run platinums w/ boost, im actually thinking of going back to stock injectors and FMU and see if i can richen it up up top to make it run nice and just sell the 440's. also i have a 99 DX hatch that ran a 18.4 stock w/ intake and exhaust, this seems REALLY slow to me as ive seen an S model 97 del sol run a mid 16 stock, but my timing was retarded almost completely, anyone have an idea on that id like ur input also

 

Hopefully some1 can help him out w/ this. He's a good guy and has been threw a lot. He needs good luck for now on

 

ok well i put stock injectors back in and the vortech 12:1 fmu, and it runs great, explain this to me PLEASE!!!! anyone have info, HELP HELP HELP. thanks in advance anyway

 

Could list your complete setting for the VAFC? The more info the better.

 

it is all in the tuning, you have it running rich as hell on the vafc, of coarse it will have misfires and run shitty, lean it out some.

 

well the settings were -27 at idle because thats where it isnt too lean at idle, even though some people seem to not believe that, saying that i have it set too rich, but after that i had it set to -20 all the way up to 9K on wide and narr. throttle, then it seemed to lean out up top so i richened it to 0 from 4K on up to 9K and that didnt seem to do anything


Modified by Cimburke23 at 12:07 AM 8/17/2004

 

What kind of air fuel gauge are using? You were running it pig rich that's causing the misfire.

 

also, are you throwing a cel. and if so reset it. having the vafc at -27 and -20, your probably throwing the map code also. and if you dont reset that, your car will run like ****.

 

sounds like he's using a narrow band a/f gauge

 

the only way to know what is going on is to get a wideband on that thing. Narrowband AF gauges are extremely inaccurate. Have you pulled your plugs to see what color they were? If they are fairly white then it may be a sign that you are running lean.

 

And if there black your running rich. I'll bet there black with those settings.

 

NO WHERE NEAR BLACK, more of a light brown to white color, and i can just tell when it leans out and richens up at idle because it tries to cut off either way, even using the narrowband a/f i just dont know what to do with this thing its really pissin me off

 

give it to me, i'll make it a nice hope

 

how can you magically tell if it is rich or lean? GET A WIDE BAND!

 

Something is not right. Did you solder everything? Were you using a missing link before by any chance and didn't remove it once you put the VAFC in? I'm just trying to narrow it down.

 

actually i removed it, then it was throwing a MAP code, what do i do then? i now put the 440's back in and took the fmu off after changing plug wires and it runs great, settings are: -27 at idle, and -20 from there on, runs excellent, but i still have the missing link on it for now just so it doesnt throw a code, let me know what i should do, and wanting to up the boost, let me know what you people think a STOCK gsr can hold. thanks

 

I know your running alright with the missing link but the VAFC needs to see boost.
I'm looking for a link for you to read. I posted the wrong the one.


Modified by e'sd16 at 9:06 PM 8/23/2004

 

thanks man, but the link doesnt work

 

i know what u should do. pull ur entire turbo set-up off and put it on my hatch before u ship it overseas to me.

ever think maybe its the tuner not the tunee? lol j/j ill never question your knowledge of honda

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtecEH2 &raquo;</TD></TR><TR><TD CLASS="quote">i know what u should do. pull ur entire turbo set-up off and put it on my hatch before u ship it overseas to me.

ever think maybe its the tuner not the tunee? lol j/j ill never question your knowledge of honda </TD></TR></TABLE>

Yeah i know, chris invented the game called "honda" good ****.

But sorry about this jason, his turbo kit may be on my hatch soon

he tell you what he dyno'd at last week? 241whp and it was still climbing on only 6psi. Pretty bad ***

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Typesi2nv &raquo;</TD></TR><TR><TD CLASS="quote">

Yeah i know, chris invented the game called "honda" good ****.

But sorry about this jason, his turbo kit may be on my hatch soon

he tell you what he dyno'd at last week? 241whp and it was still climbing on only 6psi. Pretty bad *** </TD></TR></TABLE>

yeah, he is honda. but hes so young. LOL. yeah i know about the turbo situation besides i want a smaller turbo. quicker spool with less boost. im just in it to win it. yeah i heard about the dyno session also. thats insane, if only he had a good tune and a lighter shell, hat ****** would be runnin what he wants. ive got this bad image of him building a true "racecar" not like our 1 week project car we built (it still was hella quick, even on 3 cyl). u know chris lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtecEH2 &raquo;</TD></TR><TR><TD CLASS="quote">
yeah, he is honda. but hes so young. LOL. yeah i know about the turbo situation besides i want a smaller turbo. quicker spool with less boost. im just in it to win it. yeah i heard about the dyno session also. thats insane, if only he had a good tune and a lighter shell, hat ****** would be runnin what he wants. ive got this bad image of him building a true "racecar" not like our 1 week project car we built (it still was hella quick, even on 3 cyl). u know chris lol</TD></TR></TABLE>

Yeah lol, I told him... "chris, you know taht swap in my car w/ slicks and a good run would be 11's??" he looked at me and then the sol and said he wished he had an eg again lol.

I road in Chris's (Big Black Chris from Richmond) in his EF LS turbo last night. its fast as hell but has a lot of traction issues, lol i still think i could take him on a richmond sized corse (less than a 1/4) lol... Its 9.5psi on the same turbo kit as Chris's Delsol GSR so it just rips, He doesnt catch traction until mid 4th, witch comes VERY quick, He would drive on his BFG's but last time he went out there with them he wrecked it into the median on i95 comeing home when it started raining.