Any Drawbacks With This Setup?
#1
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Any Drawbacks With This Setup?
Hello all,
I am looking to completely build up my fuel system and want to begin with upgrading my fuel pump. I was wondering if there would be any problems with running the DENSO competition pump with my stock injectors? Keep in mind that I would like to avoid buying parts twice if I can, and I don't feel that the Walbro will be able to handle the power that I may want to throw at this car in the future. I have an S-AFC on the way to help the cause for now, and injectors will more than likely be addressed shortly. I plan to log a little time on the dyno soon to tune the S-AFC as well.
All in all, my question is to wether or not it would be o.k. for me to run a hefty pump on the car in it's present state?
Thanks!
I am looking to completely build up my fuel system and want to begin with upgrading my fuel pump. I was wondering if there would be any problems with running the DENSO competition pump with my stock injectors? Keep in mind that I would like to avoid buying parts twice if I can, and I don't feel that the Walbro will be able to handle the power that I may want to throw at this car in the future. I have an S-AFC on the way to help the cause for now, and injectors will more than likely be addressed shortly. I plan to log a little time on the dyno soon to tune the S-AFC as well.
All in all, my question is to wether or not it would be o.k. for me to run a hefty pump on the car in it's present state?
Thanks!
#2
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Don't quote me on this, but if your fuel pressure increases then you'll run rich. If you're hitting a Dyno anyway then you can tune it back to normal.
Maybe time it so you change the pump just before dynoing. Then there's no problem.
Maybe time it so you change the pump just before dynoing. Then there's no problem.
#5
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Could someone explain me the goal of putting a bigger fuel pump with stock injectors if you tune it to normal ? I don't understand. When you want to run more boost, say 9-10 psi, you don't have to tune it to normal right ? You have to tune it to have a properly a/f ratio ?
Thanks
Thanks
#6
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Originally posted by FD3S_wanted
Could someone explain me the goal of putting a bigger fuel pump with stock injectors if you tune it to normal ? I don't understand. When you want to run more boost, say 9-10 psi, you don't have to tune it to normal right ? You have to tune it to have a properly a/f ratio ?
Thanks
Could someone explain me the goal of putting a bigger fuel pump with stock injectors if you tune it to normal ? I don't understand. When you want to run more boost, say 9-10 psi, you don't have to tune it to normal right ? You have to tune it to have a properly a/f ratio ?
Thanks
#7
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Mykl is very right, he can go ahead and get some mods out of the way before he turns up the boost, or upgrades turbo. Plus each car should actually be tuned specifically for itself, and after 15 years a little tuning will most likely bring some power as well as adding to gas mileage and overall reliability.
- Steiner
- Steiner
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#8
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Originally posted by FD3S_wanted
Could someone explain me the goal of putting a bigger fuel pump with stock injectors if you tune it to normal ?
Could someone explain me the goal of putting a bigger fuel pump with stock injectors if you tune it to normal ?
When you want to run more boost, say 9-10 psi, you don't have to tune it to normal right ? You have to tune it to have a properly a/f ratio ?
#12
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That is what I am afraid of. For some reason, a fuel pump that is that cheap scares me. Money is not an issue really. That aside, is the ND a good pump?
#14
Ted I strongly recommend you go with a SX Fuel Pump with the liquid crystal filled gauge. That pump is the ****.
I have seen alot of cars that are flying low use that pump especially on 10-11 second turbo 2's. And I have seen it on other Rotary powered cars as well.
I have seen alot of cars that are flying low use that pump especially on 10-11 second turbo 2's. And I have seen it on other Rotary powered cars as well.
#15
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Well, the reason that I am thinking ND is because it is a direct replacement (I think) for the stocker. What about these other aforementioned pumps?
#16
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Originally posted by Donn Hecht
Ted I strongly recommend you go with a SX Fuel Pump with the liquid crystal filled gauge. That pump is the ****.
I have seen alot of cars that are flying low use that pump especially on 10-11 second turbo 2's. And I have seen it on other Rotary powered cars as well.
Ted I strongly recommend you go with a SX Fuel Pump with the liquid crystal filled gauge. That pump is the ****.
I have seen alot of cars that are flying low use that pump especially on 10-11 second turbo 2's. And I have seen it on other Rotary powered cars as well.
-Ted
#18
[QUOTE]Originally posted by RETed
[B]We don't like the SX fuel pumps cause they are not reliable.  I have seen too many of these things returned to get serviced, because they failed.
Well thats pretty interesting, as I have never heard of this problem before with the SX F. Pump before. I also heard the Cosmo F. Pump is very good as well.
[B]We don't like the SX fuel pumps cause they are not reliable.  I have seen too many of these things returned to get serviced, because they failed.
Well thats pretty interesting, as I have never heard of this problem before with the SX F. Pump before. I also heard the Cosmo F. Pump is very good as well.
#19
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Most of the racers in the 80's and 90's that started the import racing scene know how bad the SX fuel pumps were back in the day.  SX could've stepped up the quality control, but it still leaves a bad taste in my mouth - I would never run an SX fuel pump in my cars.  I would rather run an Aeromotive, if I needed that kinda fuel flow.
The Cosmo pump just plain sux for the price.  The Walbro 255lph fuel pump blows away the Cosmo pump for a fraction of the cost.
-Ted
The Cosmo pump just plain sux for the price.  The Walbro 255lph fuel pump blows away the Cosmo pump for a fraction of the cost.
-Ted
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