1jz leaning issues?

[tturnpaw]

Hi all, just had some questions about leaning out up towards the top of the rev range. Were talking like 5000-6500 rpms. Ive had the wideband calibrated and the gauge recalibrates itself every time its turned on or off. Running stock boost, with the Driftmotion afpr kit and bypass line, it will lean out up top (13.1-13.8) during wot. This car does have a mines ecu, but even after upping fuel pressure to 42psi same thing. Rich and good down low but up top really lean. It also has a walbro 255. Any thoughts?

[annoyingrob]

I blame the walbro.

you're running about 60psi of fuel pressure at full boost. The walbro doesn't flow that much at high pressures. I had the same problem with my car. I suggest a 2nd pump in-line.

[tturnpaw]

i also believe that. Im considering some dyno testing to monitor my fuel pressure up top at wot. Possibly tuning the mines. But i think an aeromotive a1000 is in my future. Thanks for the input.

[Andre]

i also believe that. Im considering some dyno testing to monitor my fuel pressure up top at wot. Possibly tuning the mines. But i think an aeromotive a1000 is in my future. Thanks for the input.


To much noise an a1000 pffff

twin walbro are just twin Mk4 denso pumps is fine

[kwnate]

Put a walbro in it. It's still on the stock NA pump. LOL...

[tturnpaw]

Put a walbro in it. It's still on the stock NA pump. LOL...

what are you haunting me? lol did you never notice it had huge leaning out issues?

[suprahero]

I'm on one walbro and I've never had problems with mine leaning out, but if it's on the stock pump like Kwnate saids then it makes more sense. Are you running stock injectors? How much boost are you making when it leans out?

[bigaaron]

If the 1jz is leaning, just put a block of wood between the intake and the shock tower.

[SupraStardom]

:rofl::rofl::rofl:

well id just put lowering springs on one side of the car to compensate... dam swap mounts

[suprahero]

You could also try putting more air in one of the front tires. That helps sometimes if it isn't leaning too badly.

[kwnate]

what are you haunting me?

Yes.

[tturnpaw]

I'm on one walbro and I've never had problems with mine leaning out, but if it's on the stock pump like Kwnate saids then it makes more sense. Are you running stock injectors? How much boost are you making when it leans out?

I didnt know this as nate had told me it was a walbro BEFORE i bought it....it explains everything. its only on 10lbs. stock everything.


If the 1jz is leaning, just put a block of wood between the intake and the shock tower.

lol well aaron, looks like i found the problem! jesus and of course nate says he never told me it was or wasnt a walbro. you got one ready to ship? ill call ya tomorrow. send another t shirt lol



Yes.

i hate you lol. sooo frustrating. i still swear you told me it was, and i never pulled the plate off until yesterday.

[jz*supra]

How much fuel pressure can walbros handle on a regular basis?

[annoyingrob]

How much fuel pressure can walbros handle on a regular basis?

They start dropping flow dramatically after 75psi.

The red line is 13.5v, blue is 12v. Stock wiring will run close to 21v, maybe less. Upgraded wiring will run the pump closer to 13.5v

http://www.gnttype.org/techarea/fuelsystem/pumpflows/gss307340.gif

You're running dual walbros aren't you? Tell me your injector size, and how much boost you're running, I'll calculate out for you if it's enough (duals probabl are).

[kwnate]

I didnt know this as nate had told me it was a walbro BEFORE i bought it....it explains everything. its only on 10lbs. stock everything.

i hate you lol. sooo frustrating. i still swear you told me it was, and i never pulled the plate off until yesterday.

Don't come on here and fucking lie I never told you there was a walbro in it. You pulled the plate off? To look at the fuel level sender? Do you know what you're talking about? My car wasn't for sale but you just had to have it. It was put together the way I had time to do and it was fine the way I had it for what I needed, There were no short cuts, just things I hadn't done yet. It's not a perfect car and was never presented as one. You looked the car over, drove it and bought it now its your problem. If you want to sell it back I'll gladly give you half of what you paid. It's too bad you couldn't just do it yourself but judging by your other two you couldn't fix I doubt you could've done it yourself. Have fun dropping the gas tank :biglaugh:

Don't call me anymore as I do not have any desire to talk to you, its your car that you wanted so god damn bad so fucking deal with it I don't have time to hold your hand.

[91T breezen']

:biglaugh::owned::: IJ. ::

[jz*supra]

I am running 680cc injectors. but rcts flowed them at 620-650 and the entered 600cc into the vpro. My car only run 10 psi for some reason. Im hopin he didnt miss the 8 and set my boost cut at 10 not 18. every time i hit 10 psi my car stuters, afr is usualy 12.5 or a touch higher. I have not lookin into the issue at all tho.

A walbro costs 100 bucks and a few hours to install. not a big deal realy.

[onejz]

Put a walbro in it. It's still on the stock NA pump. LOL...
STOCK LOL FTW

[upgradedsupra]

But i think an aeromotive a1000 is in my future.

An A1000 for that little power, isn't needed.


I didnt know this as nate had told me it was a walbro BEFORE i bought it....it explains everything. its only on 10lbs. stock everything. lol well aaron, looks like i found the problem! jesus and of course nate says he never told me it was or wasnt a walbro.

Nate is an honest guy and doesn't cut corners, just look at his Blue car. The white one does need a few small things but it ran like a beast when he had it. In this case, sometimes things should be left alone when you don't have a clue about cars. I knew and everyone else knew it was on an N/A pump and I believe he would have told you the same. Nate is that kind of guy.



i hate you lol. sooo frustrating. i still swear you told me it was, and i never pulled the plate off until yesterday.

Well it's time you did something and after all, you ended up buying a car that you didn't have to do much with. Minor things and that car was set and good to go for a long time. Nate called me when someone wanted to buy the car and when I found out it was you, I kinda laughed since I know some of the history from Nate. One being that you wanted to make a targa out of a hardtop.

Go ahead and tell me about the boost control now, I would love to hear this. I already have a response for you so make sure you are accurate in what you say first before responding though ;)

PS: By the way you drove in Centralia, I'm surprised that you haven't crashed that yet.

Ok, I'm done.
Duane

[annoyingrob]

I am running 680cc injectors. but rcts flowed them at 620-650 and the entered 600cc into the vpro. My car only run 10 psi for some reason. Im hopin he didnt miss the 8 and set my boost cut at 10 not 18. every time i hit 10 psi my car stuters, afr is usualy 12.5 or a touch higher. I have not lookin into the issue at all tho.

A walbro costs 100 bucks and a few hours to install. not a big deal realy.

Sounds like plug gap more than anything. Make absolutely sure your coil pack connectors aren't cracked and missing their locking clips too.


Oops, I mis-read the above chart. red is 13.5v, blue is 12v for the same pump.

600cc/min * 6 injectors * 60 mins / 1000cc/l = 216 L/h = 57gal/h @ 100% duty cycle.

assuming you're running a base fuel pressure of 40psi, and 10psi of boost, that's 50psi of fuel pressure. At 50psi, the walbro flows about 54gal/h, so you're close with one pump. Assuming you're not maxing out the injectors, you'll be fine.

However, if you want to run more than 10psi of boost, you're going to run into fuel issues with just one walbro.

For people running stock lines, add another 5psi or so of pressure drop within the lines due to their small diameter.

[jz*supra]

[QUOTE=annoyingrob;1023607]Sounds like plug gap more than anything. Make absolutely sure your coil pack connectors aren't cracked and missing their locking clips too.
QUOTE]

I have dual walbro so i should have plenty of fuel then.
Yea plugs was going to be my starting point. Coil pack connects were not cracked last time they went in, I assume the locking clips are for the wiring? My car is missing two, always has been, i talked to my toyota parts manager he was stumped cuz he cant order 1j parts and he didnt feel like lookin to see if any other toyotas had similar connectors. I beleive rcts used a very high temp silicone to mount them. I was hoping they new were to find them. I had totaly forgoten about that until now. Ill have to add that to the list.
Should i be using the stock gap, or use a smaller gap to prevent spark blowout?

[annoyingrob]

I'm very surprised RCTS didn't know where to get them, seeing as how I bought them from there years ago.

The coil pack connectors are interchangeable with 2JZ connectors. The 2JZ ones will actually give you a more solid connection. A new set of 6 is about $50 from Toyota.

Check your plug gap first. Should be around .028". Run coppers, not platinum, or iridium. If the issue isn't solved at that point, buy new connectors for your coil packs. You would be surprised how much of a difference they can make.

[jz*supra]

My plugs r gaped to .032 now. and im running ngk 6097 bkr7e's.
I will by coil pack connectors regardless.

[annoyingrob]

My plugs r gaped to .032 now. and im running ngk 6097 bkr7e's.
I will by coil pack connectors regardless.

Gap to .028, not .032. Proper plugs though :)

[tturnpaw]

Don't come on here and fucking lie I never told you there was a walbro in it. You pulled the plate off? To look at the fuel level sender? Do you know what you're talking about? My car wasn't for sale but you just had to have it. It was put together the way I had time to do and it was fine the way I had it for what I needed, There were no short cuts, just things I hadn't done yet. It's not a perfect car and was never presented as one. You looked the car over, drove it and bought it now its your problem. If you want to sell it back I'll gladly give you half of what you paid. It's too bad you couldn't just do it yourself but judging by your other two you couldn't fix I doubt you could've done it yourself. Have fun dropping the gas tank :biglaugh:

Don't call me anymore as I do not have any desire to talk to you, its your car that you wanted so god damn bad so fucking deal with it I don't have time to hold your hand.

You should calm down. First of all, i didnt just pull that out of my ass. I asked and i heard it either from you or one of your buddies that was over there when i was sitting in it. My friend that was there can back that up. Second, it was a stupid miscommunication. Im not expecting you to hold my hand. Again, i know you didnt take short cuts. If you think you still need to be mad, then so be it. I only call you to clear things up considering a lot is done to that car, and just by looking at it you cant tell what you did or didnt do. Sorry if you think i came after you about it.

[tturnpaw]

An A1000 for that little power, isn't needed.



Nate is an honest guy and doesn't cut corners, just look at his Blue car. The white one does need a few small things but it ran like a beast when he had it. In this case, sometimes things should be left alone when you don't have a clue about cars. I knew and everyone else knew it was on an N/A pump and I believe he would have told you the same. Nate is that kind of guy.



Well it's time you did something and after all, you ended up buying a car that you didn't have to do much with. Minor things and that car was set and good to go for a long time. Nate called me when someone wanted to buy the car and when I found out it was you, I kinda laughed since I know some of the history from Nate. One being that you wanted to make a targa out of a hardtop.

Go ahead and tell me about the boost control now, I would love to hear this. I already have a response for you so make sure you are accurate in what you say first before responding though ;)

PS: By the way you drove in Centralia, I'm surprised that you haven't crashed that yet.

Ok, I'm done.
Duane

Ok obvously an a1000 isnt needed. whos to say i wouldnt upgrade anything else? This was before i knew it was the stock pump anyway.

I never accused him of cutting corners, you should know considering you were at the meet. I was joking with him at one point about the boost controller, since it wasnt calibrated for internal wastegate but that was nothing more than a joke. The car leans out before and after the fpr which nate says it was fine which baffles me. and no im not accusing him of lieing.

I already installed the fpr and adjusted the boost controller, but i guess i dont work on the car...funny considering ive only owned it a month. It was setup for a external wastegate with overboost issues....that accurate enough?

did nate tell you i also wanted that hardtop to targa conversion car to be caged and race it? I decided to sell it so instead i didnt even bother anyway.

oh and i may be young but you have no idea about my driving experience. show up to a track day and see. :) Thanks for backin nate up about so far you dont know what youre talking about.

[upgradedsupra]

Ok obvously an a1000 isnt needed. whos to say i wouldnt upgrade anything else? This was before i knew it was the stock pump anyway.

Don't get ahead of yourself, you just bought a car with 300 hp nothing more. I suggest take it one day at a time ;)


I never accused him of cutting corners, you should know considering you were at the meet. I was joking with him at one point about the boost controller, since it wasnt calibrated for internal wastegate but that was nothing more than a joke. The car leans out before and after the fpr which nate says it was fine which baffles me. and no im not accusing him of lieing.

I was at the meet but I, along with a few others avoided talking to you since our blood was boiling after your so called, "driving skills"


adjusted the boost controller, but i guess i dont work on the car...funny considering ive only owned it a month. It was setup for a external wastegate with overboost issues....that accurate enough?

WOW!!!! Sweet, you turned the knob!

I know about the boost controller as it was mine hence why it was set for an external waste gate. Not accurate since it worked fine and it's not hard to turn a knob. ;) You can open a door too right?


did nate tell you i also wanted that hardtop to targa conversion car to be caged and race it? I decided to sell it so instead i didnt even bother anyway.

You're something else thinking that you could change the car over LOL. Whether you race it or not, it's a dumb idea but you being young, it makes sense. It's something better left alone for many reasons.


oh and i may be young but you have no idea about my driving experience. show up to a track day and see. :)

I was referring to your complete lack of respect for other drivers on the road "driving skills" You know, the one when you cut off the car in front of us on the way to Centralia? That car was not controlled in any way shape or form so if you think you can drive, you need to go back where you were taught. You should be thankful that no one went over to you. More than one person was a tad pissed about that. Yup, that was some real driving skill there. :3d_frown: You could have caused a serious accident.


you dont know what youre talking about.

Nope, I have no clue and have no idea what I'm talking about. My car came from the factory with 815 RWHP :rofl:

The bottom line here is, the thread has served it's purpose and it's obvious that Nate doesn't want to talk to you. Also, don't insinuate that he has done something wrong when in fact he hasn't.

End result, the thread is closed.

Duane