Fuel Pump Q: How-to-change it...
09-13-02, 02:35 PM
#1
Rotary Freak
Thread Starter
Fuel Pump Q: How-to-change it...
i have searched....
Does anyone have some instructions on how to swap out my stock FP for an upgraded fuel pump(rotary performance)?
I'm sure I can figure it out, but I rather not reinvent the wheel here...
Any help would be appreciated. Thanks!
Does anyone have some instructions on how to swap out my stock FP for an upgraded fuel pump(rotary performance)?
I'm sure I can figure it out, but I rather not reinvent the wheel here...
Any help would be appreciated. Thanks!
09-13-02, 02:56 PM
#2
fairly easy
make sure you do it in a well ventilated area....
remove the rear hatch carpeting
youll find the cover plate left of the spare tire
if i recall correctly...it as simple as removing the plate screws and connectors and basically lifting the assembly out of the tank do the replacement...
remove the rear hatch carpeting
youll find the cover plate left of the spare tire
if i recall correctly...it as simple as removing the plate screws and connectors and basically lifting the assembly out of the tank do the replacement...
09-13-02, 03:05 PM
#3
fart on a friends head!!!
make sure you take the bottom piece of the fuel pump brace off when you disassemble and reassemble. i found that mine was hanging out of its place. the pump will sit straight up and down and will not be cocked any other way when it is installed correctly.
paul
paul
09-13-02, 03:26 PM
#4
Rotary Freak
Thread Starter
That simple, huh? I guess it'll go in this weekend.
Oh yeah, I bought it used. Is there a way to check it, and make sure it's working properly? I'd hate to pop my motor due to a bad/clogged pump.
Oh yeah, I bought it used. Is there a way to check it, and make sure it's working properly? I'd hate to pop my motor due to a bad/clogged pump.
Last edited by jpandes; 09-13-02 at 03:32 PM.
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09-16-02, 12:29 PM
#9
Rotary Freak
Thread Starter
Thanks guys. Did the FP swap on Friday. It took about an hour. The toughest part was getting all the fuel lines to come loose w/o breaking any of the nipples. Other than that it was straight forward. i recommend doing outside...it's pretty messy and the fumes are pretty bad.
The one thing that makes me feel uneasy about the whole deal is that I bought the pump used and it looks identical to the OEM pump, except that the part numbers on top were grinded/melted off the top of the pump. The guy I bought it from said that it was from rotary perf.
Seems to work...
The one thing that makes me feel uneasy about the whole deal is that I bought the pump used and it looks identical to the OEM pump, except that the part numbers on top were grinded/melted off the top of the pump. The guy I bought it from said that it was from rotary perf.
Seems to work...
09-16-02, 12:51 PM
#11
Originally posted by jpandes
Thanks guys. Did the FP swap on Friday. It took about an hour. The toughest part was getting all the fuel lines to come loose w/o breaking any of the nipples. Other than that it was straight forward. i recommend doing outside...it's pretty messy and the fumes are pretty bad.
The one thing that makes me feel uneasy about the whole deal is that I bought the pump used and it looks identical to the OEM pump, except that the part numbers on top were grinded/melted off the top of the pump. The guy I bought it from said that it was from rotary perf.
Seems to work...
Thanks guys. Did the FP swap on Friday. It took about an hour. The toughest part was getting all the fuel lines to come loose w/o breaking any of the nipples. Other than that it was straight forward. i recommend doing outside...it's pretty messy and the fumes are pretty bad.
The one thing that makes me feel uneasy about the whole deal is that I bought the pump used and it looks identical to the OEM pump, except that the part numbers on top were grinded/melted off the top of the pump. The guy I bought it from said that it was from rotary perf.
Seems to work...
(Of course I already knew that, but was trying to do something quick)The number is taken off from Rotary Performance, because you are buying nothing more then a Supra TT Denso drop in pump, that you could find for $200.00 at other places.
09-16-02, 01:02 PM
#13
Rotary Freak
Thread Starter
Originally posted by the_glass_man
The number is taken off from Rotary Performance, because you are buying nothing more then a Supra TT Denso drop in pump, that you could find for $200.00 at other places.
The number is taken off from Rotary Performance, because you are buying nothing more then a Supra TT Denso drop in pump, that you could find for $200.00 at other places.
09-16-02, 01:29 PM
#14
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https://www.rx7club.com/forum/showth...ight=fuel+pump
Great job searching! the exact reason I did this write-up 
Great job searching!
the exact reason I did this write-up
09-16-02, 01:31 PM
#15
1JZ powered
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Originally posted by ttpowerd
https://www.rx7club.com/forum/showth...ight=fuel+pump
Great job searching! the exact reason I did this write-up
https://www.rx7club.com/forum/showth...ight=fuel+pump
Great job searching!
the exact reason I did this write-up
09-16-02, 03:15 PM
#18
Originally posted by fdracer
why doesn't everbody just get the walbro 255, it's only 90 bucks brand new.
why doesn't everbody just get the walbro 255, it's only 90 bucks brand new.
You get what you pay for!
09-16-02, 04:40 PM
#19
exactly glassman
Instead of a new walbro I got a used supra tt fuel pump with 55k on it and I feel more confident about that than a new walbro because I know supras are reliable and I have heard those things about the walbro so it was an easy choice
Instead of a new walbro I got a used supra tt fuel pump with 55k on it and I feel more confident about that than a new walbro because I know supras are reliable and I have heard those things about the walbro so it was an easy choice
09-16-02, 05:29 PM
#20
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Originally posted by the_glass_man
Because its smaller, doesn't flow as well, doesn't support as much horsepower, and is more prone to failure.
You get what you pay for!
Because its smaller, doesn't flow as well, doesn't support as much horsepower, and is more prone to failure.
You get what you pay for!
What does SIZE of the pump have to do with flow and horsepower support? 255 lph in a small pump is just as good as 255 lph in a bigger pump.
I have NEVER seen a walboro pump fail on ANY car...Mustang/Camaro/FD/180SX/Silvia/GTR...NONE.
MOST of fd owners won't even get CLOSE to using the walboro at it's full potential...
09-16-02, 05:58 PM
#21
Originally posted by jspecracer7
Then why is it that most of the high end hp Okinawa FD's run the same pump?
Then why is it that most of the high end hp Okinawa FD's run the same pump?
Why do more people run PFC's over Motec's or Kuhmos over Bridgestones???
Originally posted by jspecracer7
What does SIZE of the pump have to do with flow and horsepower support? 255 lph in a small pump is just as good as 255 lph in a bigger pump.
What does SIZE of the pump have to do with flow and horsepower support? 255 lph in a small pump is just as good as 255 lph in a bigger pump.
Bigger is almost always better.
Not to mention it does flow more.
Originally posted by jspecracer7
I have NEVER seen a walboro pump fail on ANY car...Mustang/Camaro/FD/180SX/Silvia/GTR...NONE.
I have NEVER seen a walboro pump fail on ANY car...Mustang/Camaro/FD/180SX/Silvia/GTR...NONE.
I'm sure some of this is hearsay, but why take a chance on one of the most important parts of your system???
Originally posted by jspecracer7
MOST of fd owners won't even get CLOSE to using the walboro at it's full potential...
MOST of fd owners won't even get CLOSE to using the walboro at it's full potential...
Because when the horsepower bug bites, you never know when it will stop (if ever), maybe until your pockects are completely empty??? Well if they are, I'm glad I spent the extra $60 on the Denso pump.
09-16-02, 06:51 PM
#22
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Good points made glass man!
I'm still waiting to see ANY walboro pumps go bad however. If I could do it again, I would have just gotten 2 walboro pumps instead of 1 ND pump....then I would have the system I wanted in the first place...2 intake Fuel Pumps!
I'm still waiting to see ANY walboro pumps go bad however. If I could do it again, I would have just gotten 2 walboro pumps instead of 1 ND pump....then I would have the system I wanted in the first place...2 intake Fuel Pumps!
09-16-02, 07:09 PM
#23
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Originally posted by the_glass_man
This may be true, but why not get the best (straight drop in) while you are at it? I would have gone with 1600 cc secondaries from the start (instead of 1300) if I could have done it all over again.
Because when the horsepower bug bites, you never know when it will stop (if ever), maybe until your pockects are completely empty??? Well if they are, I'm glad I spent the extra $60 on the Denso pump.
This may be true, but why not get the best (straight drop in) while you are at it? I would have gone with 1600 cc secondaries from the start (instead of 1300) if I could have done it all over again.
Because when the horsepower bug bites, you never know when it will stop (if ever), maybe until your pockects are completely empty??? Well if they are, I'm glad I spent the extra $60 on the Denso pump.
09-17-02, 09:40 AM
#24
Yes it is true that the walbro pump flows more than the supra fuel pump but the fact that we have heard of a couple failing was enough to turn us away from using it even if the thing came gold plated
Can you imagine boosting to 13 psi while flooring it and having your fuel pump go out? Not good
The walbro pump sounds better in many aspects like that it is newer, flows better, and it is still cheaper than a used supra tt fuel pump but I like to take every precaution possible and it has been rumored that the walbro pumps may fail...it seems they are a much cheaper made product and the price reflects that.
How many supra tt fuel pumps have you heard of that failed? I've heard of supras with 150k on them totally stock and still running fine with good compression and good turbos. They are reliable so therefore their parts must be.
I think many people run that dual walbro setup not because they have more than 500 rwhp but just incase oneof the walbros fails they have a backup
Can you imagine boosting to 13 psi while flooring it and having your fuel pump go out? Not good
The walbro pump sounds better in many aspects like that it is newer, flows better, and it is still cheaper than a used supra tt fuel pump but I like to take every precaution possible and it has been rumored that the walbro pumps may fail...it seems they are a much cheaper made product and the price reflects that.
How many supra tt fuel pumps have you heard of that failed? I've heard of supras with 150k on them totally stock and still running fine with good compression and good turbos. They are reliable so therefore their parts must be.
I think many people run that dual walbro setup not because they have more than 500 rwhp but just incase oneof the walbros fails they have a backup
09-17-02, 09:59 AM
#25
Originally posted by fdracer
the walbro flows more than either the supra or 20b pumps.
the walbro flows more than either the supra or 20b pumps.
Here are the flow charts of some fuel pumps.
Denso
Toyota part number is 23221-46110
260 lph @43psi @12v
290 lph @43psi @14v
Just a few others.
Mazda RX-7 Twin Turbo
210 lph @43psi @12v
Mazda Cosmo
250 lph @43psi @12v
3000 GT VR-4, Celica GT-4
180 lph @43psi @12v
260 lph, is more then 255 lph. Is it not???