I got this in my car :

1.B16a head
2.Blox camshaft
3.B20b block
4.H22a injector
5.Unichip dekstor
6.Skunk2 intake
7.Throttle body 70mm

but my ecu is stock ecu, and used stock fuel pump, engine not running well.
it is ok if i used Walbro HP 255lbh fuel pump, and chip ecu with stock bin that adjust rev limit and speed limiter remove?

 

I have a somewhat similar set up and I have a wAlbro in it with 310 injectors, but I am also dyno tuned. It wont do any damage but you could slightly benefit from it.

 

What brand 310cc injector you used? and i got aftermarket h22a injector but i dont know the injector spect, just buy from halfcut bay. Any suggestion how to check injector cc? so i cant try make adjustment using fuel tools crome 1.5..

 

what gen prelude did you pull them from? did you get the resistor box if there obd1 injectors?

if they are obd1 they are like 345's which is big enough the reason your engine isnt running very well is it needs tuned

 

I dont sure what gen lude it is, i just buy bundle injector wrote h22a without resistorbox, but after i measure the injector with multimeter, i got the injector resistance 2000ohm, it low impedance rite? and it sure must use resistor box with, correct me if wrong.. and for the tune crome is the best or unichip?

-----------------------------------------
"Just oder walbro fuel pump HP 255lbh."

 

It arrived now, install new walbro fuel pump in my GF.. hope she like it and give me little improvement.. will post the result after test.

 

You have to be careful about buying Walbro's as most of them being sold on websites and ebay are fake. And will die on you pretty soon. Also you don't need a walbro for your setup. I ran my built and boosted D on a stock fuel pump for a few weeks when my TRE 255LPH blew out. The reason the car isn't running well is becaues the H22A injectors are bigger than your stock ones. And your stock ECU doesn't know how to drive them (are they even the same impedance?). And do you have any CEL's is your IACV wired up properly?

And which "stock" ecu do you have? Do you have a stock B16, B20, or Single cam ECU? Because depending on which one you have will depend on how badly it runs.

 

I buy this walbro 255lbh at local shop, it look shining casing and lot of noise compare stock fuel pump, it is fake walbro? i just install it with old fuel piping, and got extra hot compare with stock pump..will change bigger fuel piping tomorrow.



yes, all injector have same model and 2ohm resistance..any suggestion for better injection? and i used 37820-P30-000 JDM small case.

1.used stock ecu : Car is hard to start, and fuel is washing my piston + black smoke

2.Chip ecu with copy bin from my friend : Car running good but after vtec kick
exzoz got poping.


*Jimster480 or anyone have B20 stock bin? so i can try and error..

here some bin file i got from my friend car, it used for b16a skunk2 engine setup :

 

P30 is for what? And its a JDM ECU? And you have to look inside of the walbro to see if its fake, if its plastic then its fake, if its metal then there is another test you can do, its on youtube. What chip is in that other ECU?

 

P30 for stock b16a JDM engine, and it is JDM ecu. The chip using in the ecu is JUN chip from ebay, it pull strong with my friend car, but when using to my car it gud, but endless after vtec kick..poping.

It is deference setting in basemap if using type-r camshaft and blox tuner serial pro camshaft?

Thank God it metal inside walbro pump, and test with youtube guide,
Youtube: search "Real walbro vs fake walbro."

 

go p28 with a s100

 

well its good that its real. atleast thats one less thhing you have to worry about. But You need a tune for your setup. especially since you have a B20 bottom end. you need a B20VTEC Map.

 

b20b basemap..ok i under google it. This walbro is good stuff thank for helping in fake issu..

 

not a b20b basemap bro a b20vtec its diffrent. built meny of them save your money now and just get a s100 will be a lot easier then just a cheep *** base map. get it tuned right the first time.

 

harms_is_back : Orite,i will try find one s100 singapore are.. maybe take 2-3 days to get this in my area.. seem it little expensive here.

 

A b20b basemap won't be right either. you need a b20vtec basemap.

 

x2 with just a basemap your motor is not going to run perfect, you need to have it tuned correctly. if there is no one in your area that can tune it at least get a wideband and street tune to the best of your ability. you should give the tuning/engine man. forum a try for help.

 

For all motor, a 255 size pump is way over kill, you don't need to go that big.

A 255lbh pump will support a 400hp engine

 

Ahh pretty hard to find these b20vtec basemap, mostly it for sale..but i found two b20vtec bin in Xenocron.com one is boost second is IACV delete.

http://www.xenocron.com/bins/index.p...Crome/B-Series

Filename:
B20Vtec.IACVDelete.Bin

http://www.xenocron.com/bins/index.p...rome/B-Series&

But is it stock bin..? i'm no familiar with b20vtec basemap..i will do some experiment with this basemap with crome.

 

Over kill? reading with ekftw post "It wont do any damage but you could slightly benefit from it." can you give some explanation? (Walbro High Pressure 255lbh)

 

Actually it can support 600hp. Just sayin

And @op it would be best to get the car tuned. even on chrome it will be running nicely compared to what you have now. Chrome is very capable of running setups like this.

 

No where did i say it would damage it!!!

Explanation....i already did, you want me to say it again? The stock pump flows 90lbh!! You are asking me why you don't need a pump that flow almost 300% more than that? LOL

 

Sorry Deetz my bad translation. i on learning mode

 

Yeah i dont think you need it unless ur pushing big HP stock willl do unless ur going turbo or Built big time stats.

 

I used this same fuel pump when I was running turbo @ 14psi with 660cc injectors. You probably don't need that high of an output for your setup, but hey, if you're planning on increase power later on, you may as well get it now. It's much louder than the stock pump btw