need some advice on turbo tunning

slow2000z28 · 11-17-2006, 08:29 PM

i just spent 40 straight hours putting a turbonetics t3/t4 turbo kit on my buddies 97 h22 accord. we had the car running stock fuel pressure regulator w/ a FMU hooked up. the car ran extremely rich, off course bc of the FMU. well we just switched the FMU out for some bigger injectors, walbro 255, and an adjustable fuel pressure regulator. the car still runs extremely rich. at cruise the car is alright, at wot and idle it dumps fuel. tried adjusting the pressure but cant get it right. any help other than just tunning w/ a hondata ecu?

beak · 11-17-2006, 09:10 PM

You willl need to get better fuel control, no way around that.

Especially with larger fuel injectors. I would just put the stock injectors and pump back in there, disconnect the wastegate arm, and drive it around with no boost for now.

If you are spending the money to turbo a car, spend the extra couple of hundred bucks on Hondata

You can get free tuning software like Crome, but you would still need to have someone who knows Crome tune it for you on the dyno.

Good luck!

sagvr4 · 11-17-2006, 09:15 PM

could use an afc for a rough tune?

slow2000z28 · 11-17-2006, 09:17 PM

were getting a hondata this week and next sat. getting it dyno tuned. we were just fooling around on the street today and the car ws just too rich. just checkin to see if it was something simple i missed as for as fuel pressure. hes only running 4-7lbs for now. what psi would u set the FPR to?
hes got a s-afc v-tec controller, but i dont know how to tune w/ that. i can tune a gm car w/ a laptop but know nothing about the afc tunning.

thunder_truck · 12-02-2006, 09:02 PM

You suck slow2000z28...I heard there is a lightning bolt waiting to strike around there

nafariousaccord · 10-11-2007, 02:14 PM

you are on the right track with the hondata and the dyno tuning. thats the problem i had with my accord. you might also need a new ecm/ecu. a p28 is needed for vtecs. every one will try to sell you a s300, but all you realy need is a s100 for everyday driving.

TurboLX · 10-13-2007, 09:18 AM

How much boost you running through it and where is the FP set?

nafariousaccord · 10-14-2007, 07:58 PM

im running 8 pounds . im not sure about the fp but i will find out . i had a guy from houston tune my car.

TurboLX · 10-14-2007, 10:39 PM

what size injectors and did you upgrade the fuel lines by any chance or any ECU tuning?

nafariousaccord · 10-15-2007, 01:17 PM

well, at first i was using 6 injectors. the normal 4 (240's) and 2 extra injectors (450's) that sat infront of the throttle . they had a stand alone system. t was to hard for me to fine tune. i then upgraded to 4 550's rc injectors and a hondata s100.

nafariousaccord · 10-15-2007, 01:19 PM

oh yeah! no upgrade on fuel lines. i put in a 255 walbro new fuel filter. i had some braded fuel lines from the filter to the rail but thats about it.

TurboLX · 10-15-2007, 07:21 PM

Where is the timing set?

nafariousaccord · 10-16-2007, 10:02 AM

it was retarded 10*at first and then tuned till ran perfect. remember- im not running vtec. vtec i think need to be tuned by rpm. have you even got to drive the car yet??

11-17-2006, 08:29 PM	#1
slow2000z28 Rated R Racing slow2000z28 is offline Join Date: Nov 2006 Location: Rocky mount VA AKA the ROC Posts: 752	need some advice on turbo tunning i just spent 40 straight hours putting a turbonetics t3/t4 turbo kit on my buddies 97 h22 accord. we had the car running stock fuel pressure regulator w/ a FMU hooked up. the car ran extremely rich, off course bc of the FMU. well we just switched the FMU out for some bigger injectors, walbro 255, and an adjustable fuel pressure regulator. the car still runs extremely rich. at cruise the car is alright, at wot and idle it dumps fuel. tried adjusting the pressure but cant get it right. any help other than just tunning w/ a hondata ecu?

11-17-2006, 09:10 PM	#2
beak Pro Street Racer beak is offline Join Date: Oct 2006 Location: Nor Cal Posts: 891	You willl need to get better fuel control, no way around that. Especially with larger fuel injectors. I would just put the stock injectors and pump back in there, disconnect the wastegate arm, and drive it around with no boost for now. If you are spending the money to turbo a car, spend the extra couple of hundred bucks on Hondata You can get free tuning software like Crome, but you would still need to have someone who knows Crome tune it for you on the dyno. Good luck! __________________ Don't fry bacon when you're naked. 96 EK Hatch 343whp, and 245ft/lb torque at 11psi - Stock GSR Motor

11-17-2006, 09:15 PM	#3
sagvr4 Moderator sagvr4 is offline Join Date: Oct 2006 Location: Colorado Posts: 2,274	could use an afc for a rough tune? __________________ ~Scott

11-17-2006, 09:17 PM	#4
slow2000z28 Rated R Racing slow2000z28 is offline Join Date: Nov 2006 Location: Rocky mount VA AKA the ROC Posts: 752	were getting a hondata this week and next sat. getting it dyno tuned. we were just fooling around on the street today and the car ws just too rich. just checkin to see if it was something simple i missed as for as fuel pressure. hes only running 4-7lbs for now. what psi would u set the FPR to? hes got a s-afc v-tec controller, but i dont know how to tune w/ that. i can tune a gm car w/ a laptop but know nothing about the afc tunning. __________________ QTP LT's, QTP ORY w/ Cut outs, ported tb, ported Maf, msd wires, 4.10 gears, upgraded axles and drive shaft, built Rockland T-56 trans, t/a rear girdle, centerforce clutch, cold air intake, flowmaster, and standalone computer tunning from HPTuners weiand intake on the way and sts turbo kit hopefully by this spring.

10-11-2007, 02:14 PM	#6
nafariousaccord Honda Head nafariousaccord is offline Join Date: Aug 2007 Location: Hewitt, Tx Posts: 16	Re: need some advice on turbo tunning you are on the right track with the hondata and the dyno tuning. thats the problem i had with my accord. you might also need a new ecm/ecu. a p28 is needed for vtecs. every one will try to sell you a s300, but all you realy need is a s100 for everyday driving.

12-02-2006, 09:02 PM	#5
thunder_truck Jr Pro Street Member thunder_truck is offline Join Date: Nov 2006 Location: Wirtz, VA Posts: 2	You suck slow2000z28...I heard there is a lightning bolt waiting to strike around there

10-13-2007, 09:18 AM	#7
TurboLX Boost Addict TurboLX is offline Join Date: Oct 2007 Location: New York Posts: 120	Re: need some advice on turbo tunning How much boost you running through it and where is the FP set?

10-14-2007, 07:58 PM	#8
nafariousaccord Honda Head nafariousaccord is offline Join Date: Aug 2007 Location: Hewitt, Tx Posts: 16	Re: need some advice on turbo tunning im running 8 pounds . im not sure about the fp but i will find out . i had a guy from houston tune my car.

10-14-2007, 10:39 PM	#9
TurboLX Boost Addict TurboLX is offline Join Date: Oct 2007 Location: New York Posts: 120	Re: need some advice on turbo tunning what size injectors and did you upgrade the fuel lines by any chance or any ECU tuning?

10-15-2007, 01:17 PM	#10
nafariousaccord Honda Head nafariousaccord is offline Join Date: Aug 2007 Location: Hewitt, Tx Posts: 16	Re: need some advice on turbo tunning well, at first i was using 6 injectors. the normal 4 (240's) and 2 extra injectors (450's) that sat infront of the throttle . they had a stand alone system. t was to hard for me to fine tune. i then upgraded to 4 550's rc injectors and a hondata s100.

10-15-2007, 01:19 PM	#11
nafariousaccord Honda Head nafariousaccord is offline Join Date: Aug 2007 Location: Hewitt, Tx Posts: 16	Re: need some advice on turbo tunning oh yeah! no upgrade on fuel lines. i put in a 255 walbro new fuel filter. i had some braded fuel lines from the filter to the rail but thats about it.

10-15-2007, 07:21 PM	#12
TurboLX Boost Addict TurboLX is offline Join Date: Oct 2007 Location: New York Posts: 120	Re: need some advice on turbo tunning Where is the timing set?

10-16-2007, 10:02 AM	#13
nafariousaccord Honda Head nafariousaccord is offline Join Date: Aug 2007 Location: Hewitt, Tx Posts: 16	Re: need some advice on turbo tunning it was retarded 10*at first and then tuned till ran perfect. remember- im not running vtec. vtec i think need to be tuned by rpm. have you even got to drive the car yet??

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