volvo fuel pump... not enough????

[JDM510]

so i just got my motor swap done (ka24e) it runs great (thanks icehouse for the diagram) buuut i heard you can use a volvo turbo pump..... well she runs great pulls hard just their is NO top end 4th gear on the hiway when i hit the gas at about 3600rpm it dies for a min theni let off im guessing fuel pumps back up and then it comes back to life and will maitain speed but if i try and pass someone it dies out again...

 

i already hooked the test light up the pump is getting power when the car dies out.... then i said well maybe i did not get the right model.. i pulled one from a volvo turbo, and also a saab 4cyl intercooler turbo car.... brought them home hooked up a gauge and pluged some 12v in and i only got 25psi out of all 3 german 4cyl turbo production car pumps..

 

 

so from what im understanding my ka24e needs about 32psi at idle and 45psi wide open...

 

 

so just wondering theirs mis information about being able to run a volvo pump.. you can it will run but its jsut not right....

 

 

so anyone know of any cars that come with a inline pump that can produce 45psi???? i rerally dont want to mod the tank unless i can find another tanks to hack up instead of my stocker????

[DISLEXICDIME]

so i just got my motor swap done (ka24e) it runs great (thanks icehouse for the diagram) buuut i heard you can use a volvo turbo pump..... well she runs great pulls hard just their is NO top end 4th gear on the hiway when i hit the gas at about 3600rpm it dies for a min theni let off im guessing fuel pumps back up and then it comes back to life and will maitain speed but if i try and pass someone it dies out again...

 

i already hooked the test light up the pump is getting power when the car dies out.... then i said well maybe i did not get the right model.. i pulled one from a volvo turbo, and also a saab 4cyl intercooler turbo car.... brought them home hooked up a gauge and pluged some 12v in and i only got 25psi out of all 3 german 4cyl turbo production car pumps..

 

 

so from what im understanding my ka24e needs about 32psi at idle and 45psi wide open...

 

 

so just wondering theirs mis information about being able to run a volvo pump.. you can it will run but its jsut not right....

 

 

so anyone know of any cars that come with a inline pump that can produce 45psi???? i rerally dont want to mod the tank unless i can find another tanks to hack up instead of my stocker????

 

get one from a supra

[datzenmike]

What's the number on your ECU? You may have one from a standard tranny which has a pesky rev limiter. I can look it up for you.

[slinginabullet]

get one from a supra

 

http://www.summitracing.com/parts/SUM-G3138/

Just buy a new one for less then a hundred you won't have to sweet it keep spending 20,30 or whatever at junk yards not worth the hassle

[JDM510]

its free at the yard for me so that why i want to see what car i can snag one off

 

 

buuut if i buy one thanks for the link ill check it out..

 

 

any clue what year supra would have an inline fuel pump???

 

 

my ecu is a 14.. and i thought of it being a limiter cuz thats EXACTLY what is feels like buuut... not only dose my tranny have no wires conecting it to the ECU when i first take off i can redline it threw the gears till about the top of 3rd... but when it cuts out on the hiway in 5th its at like 3200rpm. that would be a reallly low limiter..

 

but yeah some guy also told me my MAF is to close thats why its doing it, also said my stock fuel line (hardline)is the problem.... witch my previous ka powerd 510 had stock lines on a stock motor with a inline walbro 255 with no problems at all..... soo i really want a junk yard find on the fuel pump, but its looking like im just going to have to shell out the cash for a walbro or equal to.....

[JDM510]

 

 

also i bought a autozone cone filter and when i put it on my car runs like shit and even with it off i still have a iratic idle issue soo yeah im still working a bunch of bugs out but for the most part it RIPS!!!!!!

[datzenmike]

No not that one, the one that starts with something like A11 B17 G04.

 

The limiter, when not connected cuts out all over the place. I seem to remember cut out is in high gear only.

[JDM510]

hahaha well my ecu is under the carpet so i guess that was kindof a dumb place to put it.. now i cant check it with ease ill have to check it out... but im pretty sure its a 5spd ecu unless the guy that had it befor me swaped it out.. idk he was a drifter..

[DISLEXICDIME]

hahaha well my ecu is under the carpet so i guess that was kindof a dumb place to put it.. now i cant check it with ease ill have to check it out... but im pretty sure its a 5spd ecu unless the guy that had it befor me swaped it out.. idk he was a drifter..

 

i forget the year its the body style after the celica supra if i remember right

[JDM510]

yes it dose not seem to be consistant but in hi gear and 4th gear it will do it and 3rd to at the top of 3rd so yes it is spratic... is their a way to bypass this that i missed???

[datzenmike]

It could still be lack of fuel volume, just saying the ECU could be at fault. In which case you'll be replacing the pump for nothing. What's that ECU number???

[JDM510]

buuut if i can rev it out in 2nd and 3rd to like 6000rpm then why is it diff. in 4th? how dose the ecu know its in 4th or 5th?? theirs no wires conected to the trans....

 

 

a pretty good mechanic friend said the load and the fuel volume needed for hiway driving is way diff he said problem is the pump done and done!!!

 

 

but my luck i still may have a ecu problem as soon as i can find on in a single cam slammer auto in the yard ill snag that up

 

but i will digg up my carpet and find the number tomorow was to busy driving it tonight

 

once i get this sorted out i will start working on my idle issue next lol

 

im also going to biuld a surge tank set up http://www.ratdat.com/?p=168

[Icehouse]

Yes you need a 11 ECU. I tried to find out how to bypass the other ECU rev cut but couldn't find any diagrams that where worth a shit, they showed the same wiring for auto's and manual cars. The volvo turbo pump we hooked up in Dave's car was NUTS!! I would barry a 60lbs gauge in seconds even with two 1/4" return lines fed from a 5/16" line. I remember looking it up and the pump flowed the same as a walbro 255 and only 8 bucks at Pull A Part.

 

Have you cleaned your MAF? Checked the codes? A short pipe to MAF can cause all kinds of problems trust me :)

 

I will see if I can find the fuel pump sight I found before.

[Icehouse]

http://www.fiveomotorsport.com/fuel-pumps/

 

Maybe this sight will help. Just judging from the chart Bosch pumps kick ass :)

[Bleach]

What diameter is your fuel feel line? ...is the stock 510 fuel line being used?

 

Your engine is roughly a 150hp max engine and only needs so much fuel. A turbo 4-cyl should exceed that. The 280ZX NA and turbo used the same pump from what I can tell. They can feed enough fuel for over 200whp and are not too hard to find in a yard. (not my yard)

[JDM510]

i have 2 volvo turbo pumps and one saab 4cyl turbo pump all 3 will only pull 25lbs on my compresion test gauge shoved in the outlet with 12v power to the pump.... am i testing this wrong is my compression gauge a diff psi rating????

 

im wondering if i jsut have week fuel pumps

 

i will also be on the look out for that 11 ECU thanks again icehouse!!!!

 

 

and if you didnt read it anywhere else thats for posting the ka/sr wiring for the forum to use it was a BIG help thanks!!!!!

[JDM510]

i also found out the corect year supra the cressida will also work...... 79-84 roughly.... but i did not know the 280zx has a inline pump i will have to check that out too... i need to get back to the yard and yank some more pumps i guess test diff psi ratings...

 

 

also if this pump can put out 60psi should i worry about a aftermarket fuel psi regulator????? or can the stocker handle that much psi???

 

also stock fuel hard line is being used i looked at the 240 lines and if they are bigger its by very small

[Danfinny]

I'm with the ecu being at fault..with maybe a small chance at it being a weak pump....that said with my volvo pump and stock fuel lines in, i had trouble at the top in every gear so i knew it was the fuel lines....those volvo pumps are no joke and like you said are a dime a dozen at the yards.

as for the regulator it should be fine. also is your pump cavitating, is it real loud..

you seen thursday night the surge tank and low press pump i was running... it was a major issue with mine also. just not enough fuel to the pump.

[JDM510]

i know i still need to build the surge tank idea and see if that fixes it but im sure its the ecu too BUUUT idk why these 3 pumps are only getting 25psi when i need around 45... dont want to run lean like you said.

 

 

how dose the car know its in 4th or 5th theirs no wires from the tranny to the ecu or any wires conected for that matter???

 

or is it becuz their is no wires connected is the problem and like icehouse their no way to fix it other then snaging the #11 ECU i know mines a 14.

[Danfinny]

the ecu issue is what icehouse said...if you have the wrong ecu...as for the pumps idk why you are only getting 25psi...that is obviously not right, 3 diff pumps are not going to run the exact same.

[Icehouse]

Is there any way you could test the pressure on the engine with it running? I know when we turboed Franks single cam using a zx pump it was very obvious just reving the engine the pump wasn't up to the task. I know for a fact that the volvo pump is a much better pump than the zx or any other pull a part unit. Test the pump on the feed side and let us know, run the car too.

[datzenmike]

i know i still need to build the surge tank idea and see if that fixes it but im sure its the ecu too BUUUT idk why these 3 pumps are only getting 25psi when i need around 45... dont want to run lean like you said.

 

Do you have a return line hooked up? This would prevent the pressure building. Lack of pressure is likely the prob, but could also be the rev limiter added in.

 

 

how dose the car know its in 4th or 5th theirs no wires from the tranny to the ecu or any wires conected for that matter???

 

or is it becuz their is no wires connected is the problem and like icehouse their no way to fix it other then snaging the #11 ECU i know mines a 14.

 

Get the number off the ECU and I can look it up and tell you if from an auto or a standard. This is easy to do and eliminates it as the problem.

[JDM510]

ok one more question befor i rip up my carpet to get that ecu number..... but i belive jsut by the BIG number 14 you can tell what ECU it is no???? icehouse said i need one with a big 11 on it witch i have seen befor in the yards in the auto single cam cars theirs tons of those in my yards..

 

if it was a limiter... what dose the limiter kill??... spark???? becuz i know for a fact when the car cuts off their is power going to the pump i have tested and eliminated that as the problem

 

one more thing this is to icehouse: i belive the pump you are refering to is the model with the part number ending in 044.. however 2 of mine are same part number ending in 025 and one of them is ending in 027...

 

now either you got lucky and some how the car you snaged it from had a 044 factory or i been reading alot of people when the pumps went out where sold walbros and the bigger pumps 044, becuz i remeber seeing one the other day with one that looked to be a walbro just i already had the other 2 and left that one behind i kick my self for that now....

 

and yes mike i have the return line hooked up to the factory spot on the datsun tank right now.... however when i switch to the surge tank set up i will be re routing it to the surge tank then one from the surge tank to the factory return on the datsun tank...

[sssr20det510]

from what ive read you need an auto ecu if your not hooking up the speed sensor otherwise it will cut out

 

Here is the US/AUS KA24E

 

----KA24E S13 240sx------ (JECS board)

 

A11-A42 G41 89 240SX A F S13-KA24E 9.1:1 23710-40F60

A11-B03 G49 89 240SX A F S13-KA24E 8.6:1 23710-40F61

C11-B08 G54 89 240SX A F S13-KA24E 9.1:1 23710-40F62

A11-B16 G03 89 240SX A F S13-KA24E 8.6:1 23710-40F64

A11-B16 G12 89 240SX A F S13-KA24E 8.6:1 23710-40F65

A11-B16 G17 89 240SX A F S13-KA24E 8.6:1 23710-40F66

A11-B99 G54 89 240SX A F S13-KA24E 8.6:1 23710-40F68

A11-A44 G43 89 240SX A C S13-KA24E 9.1:1 23710-42F60

A11-B05 G51 89 240SX A C S13-KA24E 8.6:1 23710-42F61

C11-B10 G56 89 240SX A C S13-KA24E 9.1:1 23710-42F62

C11-B13 G59 89 240SX A C S13-KA24E 8.6:1 23710-42F63

A11-B18 G05 89 240SX A C S13-KA24E 8.6:1 23710-42F64

A11-B18 G14 89 240SX A C S13-KA24E 8.6:1 23710-42F65

A11-B18 G19 89 240SX A C S13-KA24E 8.6:1 23710-42F66

A11-C01 G56 89 240SX A C S13-KA24E 8.6:1 23710-42F68

A11-A41 G40 89 240SX M F S13-KA24E 9.1:1 23710-40F00

A11-B02 G48 89 240SX M F S13-KA24E 8.6:1 23710-40F01

C11-B07 G53 89 240SX M F S13-KA24E 9.1:1 23710-40F02

A11-B15 G02 89 240SX M F S13-KA24E 8.6:1 23710-40F04

A11-B15 G11 89 240SX M F S13-KA24E 8.6:1 23710-40F05

A11-B15 G16 89 240SX M F S13-KA24E 8.6:1 23710-40F06

A11-B98 G53 89 240SX M F S13-KA24E 8.6:1 23710-40F08

A11-A43 G42 89 240SX M C S13-KA24E 9.1:1 23710-42F00

A11-B04 G50 89 240SX M C S13-KA24E 8.6:1 23710-42F01

C11-B09 G55 89 240SX M C S13-KA24E 9.1:1 23710-42F02

C11-B12 G58 89 240SX M C S13-KA24E 8.6:1 23710-42F03

A11-B17 G04 89 240SX M C S13-KA24E 8.6:1 23710-42F04

A11-B17 G13 89 240SX M C S13-KA24E 8.6:1 23710-42F05

A11-B17 G18 89 240SX M C S13-KA24E 8.6:1 23710-42F06

A11-C00 G55 89 240SX M C S13-KA24E 8.6:1 23710-42F08

A11-B16 G03 90 240SX A F S13-KA24E 23710-40F64

A11-B16 G12 90 240SX A F S13-KA24E 23710-40F65

A11-B16 G17 90 240SX A F S13-KA24E 23710-40F66

A11-B99 G54 90 240SX A F S13-KA24E 23710-40F68

A11-B18 G05 90 240SX A C S13-KA24E 23710-42F64

A11-B18 G14 90 240SX A C S13-KA24E 23710-42F65

A11-B18 G19 90 240SX A C S13-KA24E 23710-42F66

A11-C01 G56 90 240SX A C S13-KA24E 23710-42F68

A11-B15 G02 90 240SX M F S13-KA24E 23710-40F04

A11-B15 G11 90 240SX M F S13-KA24E 23710-40F05

A11-B15 G16 90 240SX M F S13-KA24E 23710-40F06

A11-B90 G38 90 240SX M F S13-KA24E 23710-40F07

A11-B98 G53 90 240SX M F S13-KA24E 23710-40F08

A11-B17 G04 90 240SX M C S13-KA24E 23710-42F04

A11-B17 G13 90 240SX M C S13-KA24E 23710-42F05

A11-B17 G18 90 240SX M C S13-KA24E 23710-42F06

A11-B91 G39 90 240SX M C S13-KA24E 23710-42F07

A11-C00 G55 90 240SX M C S13-KA24E 23710-42F08

[Icehouse]

I always wondered the same thing about the "other" ECU's why they seem to kick out in the higher gears more. I think even if you floor your car in neutral it will hit the rev limiter around 5.5k instead or 6k ish. It's just more noticeable at hight RPM's.

 

 

So how exactly did you test the PSI of the three pumps? was it on the feed side of your fuel rail? if so clamp the return line down so it isn't allowed to return any fuel and see what the gauge reads. I just can't imagine a volvo turbo EFI car running bellow 45ish PSI.