Van's car problem thread

[van]

problem 1.-
Steering memory? when I turn left and straighten out the wheel, the wheel wants to stay turning left,same with turning right. If I loosen my grip on the wheel it turns on its own wichever direction I previously turned. I thought it was because of my broken ass steering rack bushings but I've replaced those and the problem is still there. I've noticed my front swaybar was stuck to one side the other day, I knocked it back into place, haven't checked it since. Can a stuck front sway bar cause my wheel to pull in any direction? Or do I need a new steering rack? I can't find anything loose under the front end but that doesn't mean I haven't missed something.
problem B.-
I took my car out for a spirited romp tonight and was noticing a little bit of hesitation. I have an ej20g with a reflashed/VOS ecu and a stock WRX fuel pump (my car is a 93 imperza BTW). Whats the limit of the WRX fuel pump? I hit 16psi boost and it doesn't appear to be a boost leak by my trusty boost guage. Am I hitting the limits of my fuel pump? This doesn't happen all the time.
Thanks for the help, sorry if this doesn't all make sense as I'm tired and watching Lost and drinking beer as I type this

[sperry]

Not sure about the hesitation, but if you end up with a problem in the rack, I've got most of a WRX rack in my garage I can set you up with. It just needs some clean up, some fluid lines (you should be able to use the ones off your old rack) and a some boots.

[van]

Awesome! thanks Scott. I still need to make an offer on your rear hubs/disc setup too.

[sperry]

Originally Posted by van

Awesome! thanks Scott. I still need to make an offer on your rear hubs/disc setup too.

Well, I feel like I owe you big for letting me borrow that engine lift for so damn long, I'm sure we can work something out.

[MPREZIV]

If there's nothing in the suspension/mechanical portion of the steering that you can find that's binding, I'd definitely be looking into the rack. Murano's do the same thing you described, and I find myself replacing racks in them to fix it.

[Kevin M]

Van, after I swap my newer steering rack into my wagon, you can have the old one. Nothing wrong with it, I just suspect that the one from my parts car is a slightly shorter ratio, and I know it has fewer miles.

[van]

Originally Posted by BAN SUVS

Van, after I swap my newer steering rack into my wagon, you can have the old one. Nothing wrong with it, I just suspect that the one from my parts car is a slightly shorter ratio, and I know it has fewer miles.

That might be better for me, I think the wrx rack needs a little modding to get the linkage connected. Does you parts car have a rsb by chance, I gotta go to picknpull tommorow for lat. links and whatnot. I will buy em from you if you have them.

[Kevin M]

One of the rear links was bent, and I sold the other one, sorry. I didn't even get links for my own L out of it. I should have the rack out of the wagon within a month or so.

[van]

Thanks Kevin,
So does anyone know how much boost the stock wrx fuel pump can handle?

[Kevin M]

It can handle about 275 horsepower. I can think of no reason not to upgrade whatsoever, except for the cost. Even if it's perfectly healthy

[van]

The guy who had the ecu before me had the same setup I have plus fmic and vf28. He put down 233hp on a mustang dyno, Ive heard sti's put about 210-220 on mustangs. I'm on the stock tdo4 so I'm sure I'm nowhere near 275. I wonder if I'm gettin clogged in the tank or in my fuel filter... or if my tranny is finally going kaput.

[Dean]

Just upgrade it! Cheap insurance... I did, Scott didn't (not that he didn't try) You make the call.

[van]

Originally Posted by Dean

Just upgrade it! Cheap insurance... I did, Scott didn't (not that he didn't try) You make the call.

I plan on it, I'm just looking for a place to point my finger for this inconsistant acceleration

[Kevin M]

Originally Posted by van

I plan on it, I'm just looking for a place to point my finger for this inconsistant acceleration

Probably tuning actually. If your AFRs aren't leaning out at peak torque, it's not your pump.

[van]

Originally Posted by BAN SUVS

Probably tuning actually. If your AFRs aren't leaning out at peak torque, it's not your pump.

The ecu is tuned for my setup, the previous owner went to the dyno just to make sure he wasn't too lean, and the problem isn't always there

[Kevin M]

Originally Posted by van

The ecu is tuned for my setup, the previous owner went to the dyno just to make sure he wasn't too lean, and the problem isn't always there

I didn't say it wasn't tuned for your car, I said it could still be a tuning issue.

[cody]

I upgraded mine and I'm on the stock turbo. You're not likely to need it up here, but at sea level, you could see 100% IDC's at high RPMs.

[Kevin M]

Originally Posted by cody

I upgraded mine and I'm on the stock turbo. You're not likely to need it up here, but at sea level, you could see 100% IDC's at high RPMs.

IDC has nothing to do with fuel pump capacity.

[cody]

I was told that it would lower them a couple percent.

[Kevin M]

More pressure can reduce IDCs. But pressure is regulated by the fuel pressure regulator (yeah, duh) not the pump itself. The pump either can or cannot flow the volume required to maintain that pressure at max IDCs. If it can, then a bigger pump has no effect on your tuning, it's just a safeguard. If your pump can't flow enough to supply the fuel required at max power at the pressure that the regulator is trying to force, then upgrading your pump does make a difference.

[cody]

Yah.

[van]

Holy hell,


found my newly developed boost problem(all is good till 14psi,hesitates a touch then 15/16psi is smooth). Acting on a hunch, I figured I would pull a random spark plug and have a look before I head out to class tonight.



Anyone got any spare ej20g or svx coils? I gotta check the rest this weekend

[Kevin M]

There are one or two EJ20G partouts on nasioc in the GC8 private classifieds forum.

[van]

Originally Posted by BAN SUVS

There are one or two EJ20G partouts on nasioc in the GC8 private classifieds forum.

I tried em both. I might have to do the wrx coilpack mod/hack.
seriously anyone got any coilpacks. or 4 modern wrx or sti packs? cheap?

[Kevin M]

I *might* have some leftover, I can't remember if I ever sold them or not. I know I do have a complete '02 EJ205 engine harness if that interests you...