I was just wondering if anyone else has this problem. What can i do to fix this problem. Today I was autocrossing, and i was making a hard left turn, and when i come off the turn, i guess all the fuel was against one corner of the tank, and then the car took a few seconds before it would start to drive again, killing my time. I had a half of tank of gas in the car. But when i look at my guage after the turn its under the E line, and takes a few seconds to go back up.

Do any of you have this problem in your EF civics? If so, what can i do to help this out? I know I race on a full tank of gas, but is there anyway this wont happen with half tank of gas in the car? MY 97 ek civic does not do this even with 1/4 tank of gas

 

Other than autocrossing with a full tank of gas, or switching to a fuel cell or baffled gas tank (if you can find one), I think it's something you'll have to live with.

I've also seen people redo their fuel system, with a secondary pump and small tank inline, so that even if the main fuel pickup gets starved, there's always a smaller pressurized sump inline that won't starve the engine.

 

They all have this problem. I run at a minimum 5/8 of a tank. Its an EF issue. I can run my 00 civic si until it runs out of gas literaly(sp).

 

Welcome to the club.
We lost a race 2 weeks ago because of this.

Not much you can legally do in most autocross classes. Just keep the tank full.

 

Yup, they all seem to do that. Also, 1/2 indicated on these cars is more like 1/4 actual. Mine used to do that regardless of left or right turns.

However, since i switched to dual-carbs, dont seem to have this problem anymore. I guess the fuel-bowls on carbs seem to give a few more seconds reserve before the engine bogs down. And I havent gotten brave enough to try it under 1/4 indicated yet.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Catch 22 &raquo;</TD></TR><TR><TD CLASS="quote">Welcome to the club.
We lost a race 2 weeks ago because of this.

Not much you can legally do in most autocross classes. Just keep the tank full.</TD></TR></TABLE>

I don't know how you deal with it in road racing. I was starving pretty good after just 55 miles starting from a full tank at Road Atlanta this weekend.

 

I don't get this problem in my 1991 Civic Si unless it's a large sweeping right hand turn.

I can run about 1/3 tank of gas at all events.

 

It does fine in sprint races as long as we start with a completely full tank.
In enduros, our pit stop window is pretty much dictated to us. If we miss that window, we have a problem. Exactly how we ended up losing an enduro a couple of weeks ago.

Early pit stop = Fuel starve late in the race.

You either deal with it or drop coin on a fuel cell install.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ryan12321 &raquo;</TD></TR><TR><TD CLASS="quote"> I was starving pretty good after just 55 miles starting from a full tank at Road Atlanta this weekend.</TD></TR></TABLE>

Thats miserable... I can take mine all the way to 2 gallons left.

 

My EF was starving in the sweepers, and like Ryan, I found that the minimum I could run and not starve was 5/8 of a tank. I decided that rather than have 6+ gallons of fuel sloshing around, and upsetting the handling, I'd rather bite the bullet and run a full tank. Until this season that is. During the off season I had my welder buddy baffle my stock tank (I'm in SM).

Now I can run down almost to the empty mark on the gauge before I start getting intermitant starvation. That knocked about 50 lbs out of the weight of the car.

 

Subarus have this problem too.

 

i must be a sissy... my CRX can be run down to 1/4 tank and still not have any issues with fuel starve... guess i need to drive faster.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MMsportsRexSi &raquo;</TD></TR><TR><TD CLASS="quote">i must be a sissy... my CRX can be run down to 1/4 tank and still not have any issues with fuel starve... guess i need to drive faster.</TD></TR></TABLE>

Si/DX/HF gas tank? I have seen you drive, you go plenty fast!

I know the HF is different (smaller). DX/Si may be the same, I dont know. I would be currious to know if UD/BD to an HF tank would help. At least a full HF tank would weigh less.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MMsportsRexSi &raquo;</TD></TR><TR><TD CLASS="quote">i must be a sissy... my CRX can be run down to 1/4 tank and still not have any issues with fuel starve... guess i need to drive faster.</TD></TR></TABLE>

I think its hit or miss, my last CRX would go to about 1/3rd tank before starting to fuel starve. This car goes down to something around 2 gal and does. If its not due to how the fuel pump is positioned, it must just be something random in how the tank is designed that some folks see them starve at the bottom, others starve at 1/2 tank.

 

its an Si... 1990. i always heard the stories of fuel starving but it never happend while i was on track. but i only give myself one session out with 1/4 tank. because of sloshing around it reads in the red all the way around the track.

do you guys think i'll "fuel starve" when i put my suspension on? i'm already looking for an A6 pan to baffel because i know i will oil starve the car...

 

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

I think its hit or miss, my last CRX would go to about 1/3rd tank before starting to fuel starve. This car goes down to something around 2 gal and does. If its not due to how the fuel pump is positioned, it must just be something random in how the tank is designed that some folks see them starve at the bottom, others starve at 1/2 tank.</TD></TR></TABLE>

I agree with this. And the CRXs don't seem to be as bad as the Civics.
Problem is that I have no idea how to identify which tanks are the good ones and which starve at 1/2. Its not a model year thing, and its not a fuel pump thing so it must be a supplier issue throughout the run of the car.
If I had any idea how to identify the "good" tanks as opposed to the starve ones I'd be all over replacing mine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MMsportsRexSi &raquo;</TD></TR><TR><TD CLASS="quote">its an Si... 1990. i always heard the stories of fuel starving but it never happend while i was on track. but i only give myself one session out with 1/4 tank. because of sloshing around it reads in the red all the way around the track.

do you guys think i'll "fuel starve" when i put my suspension on? i'm already looking for an A6 pan to baffel because i know i will oil starve the car... </TD></TR></TABLE>

Oh the guage is meaningless on the track, even on the straights in both my cars - the thing is in the red when we take T1 out of pit lane it seems.

I don't know how you were driving a car without a suspension but yeah, with one on there, the problem will definately be worse since the car ... sorry Would assume anything like this gets worse w/ a car driven more aggressively. But to your comment about baffling an A6 oil pan, I don't believe I have run one baffled yet (aside from the factory baffles if that's what the plate in the bottom is referred to as). I did not know that was a Civic/CRX Si issue.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Catch22 &raquo;</TD></TR><TR><TD CLASS="quote">
Its not a model year thing, and its not a fuel pump thing so it must be a supplier issue throughout the run of the car.
If I had any idea how to identify the "good" tanks as opposed to the starve ones I'd be all over replacing mine.</TD></TR></TABLE>
Funny that V2's tank has a dent in the middle of it (maybe the PO backed into something??), maybe that's the explanation of the better fuel starve level???

 

the stock oil pan for the A6 is much more "baffeled" i feel than the B series pans... but i'd like to modify it to really make sure i dont oil starve.

for whatever reason, my instructors always ask what kind of suspension is on the car... and they are really shocked when i tell them its a 200k mile stock suspension. *shrug*

i'll be sinking money into safety before i get back out on track... so my rice bucket will just be sitting and i'll be collecting more free track time in tech.

i dont what the rules are... but would an after market in tank fuel pump solve any of the issues?

 

It's a proven fact that the 90-91 Civic hatches can run on less fuel than the 89 hatches. 89 = just over 1/2 tank, 90-91 = about 3/8 a tank.

So if you see any 89's autocrossing with less than 1/2 tank, chances are they have baffled their fuel tank, either legally or illegally depending upon the class

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Todd00 &raquo;</TD></TR><TR><TD CLASS="quote">It's a proven fact that the 90-91 Civic hatches can run on less fuel than the 89 hatches. </TD></TR></TABLE>

Untrue.

Scott, who drives a 1991 fuel starving little bitch.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Catch 22 &raquo;</TD></TR><TR><TD CLASS="quote">

Untrue.

Scott, who drives a 1991 fuel starving little bitch.</TD></TR></TABLE>

Let's rephrase...proven for 90-91 Si hatches in an autox environment. I can't speak for STDs on a track.

 

most tracks have the harder, sweeping right handers... well VIR and Summit do... so why not put an in tank fuel pump to the left side of the tank

 

17500-SH2-E30 says it's for 88-91 Civic/CRX.

I guess it's time to pay a visit to the wrecking yard for my 88 and see if it makes a difference!

 

i think we covered this topic before and found out that 90-91 pumps are differant from 88-89.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lo-Buck EF &raquo;</TD></TR><TR><TD CLASS="quote">i think we covered this topic before and found out that 90-91 pumps are differant from 88-89.</TD></TR></TABLE>

I put an '89 Si pump in my car and it didn't make a damned bit of difference.