best fuel pump for a 57trim?

[chuckdog_5]

allrite guys, heres the deal. i got this car for a very good price. im not trying to push the car to its limits, i want to run about 18-20lbs of boost tuned well. ive been reading mixed opinions on the type of fuel pump to go with. i currently have a 255walbro, but no regulator and i know its a lot harder to tune with, so what do you guys think about getting a 190walbro. i have all supporting mods for the turbo on a stock motor with 113k. my mods are in my profile....thanks for any help

charles

 

[me612]

If it were me, I'd keep the pump that's in there, and get a new regulator on there. You can find regulators out there for damn good prices now a days.

 

[chuckdog_5]

doesnt the 255 make it a lot harder to tune? i dont even think it is really nessecary for that size...

 

[sleek98]

keep the 255, and get an afpr. its "hard" to tune with out the afpr becuase the stock regulator gets over run.

chris

 

[OneGeeAWD]

keep the 255 in case you want to turn boost up in the future, which im sure you will. i dont know of too many 57 trims that are going to be very effecient at 18 lbs of boost. the regulator is a must for a good tune so theres no way around that.

 

[andymoraitis]

keep the 255, and get an afpr. its "hard" to tune with out the afpr becuase the stock regulator gets over run.

chris

That's the right answer. Add an AFPR with a gauge and all will be as it should when it comes to maintaining proper volume and not overrunning the stock FPR.

Andy

 

[chuckdog_5]

thanks for the help guys, what fuel pump regulator do you recomend?

 

[me612]

Import Evolution has 2 units very resonably priced in my opinion. I have their Aeromotive kit, but they also have the FTS bolt on unit as well. I think you'd be happy with either of those.

If you have a little more money to fling around, I think Buschur's bolt on unit is the nicest one out there, but I chose to save a few bucks and go with IE's. Just go with whichever one gives you that warm fuzzy!

 

[daren_p]

The Aeromotive 13109 is a very popular choice, I run this as well & am very happy with it. It has been discovered that because of the style of the pressure adjustment bolt (not npt) they can sometimes have a small vacuum leak. A little thread sealer on the adjustment bolt will solve this issue.

http://www.slowboyracing.com/more.php?id=1182&

 

[1SloColt]

An AFPR is not manditory for a walboro 255. I've had zero problems on a stock regulator with a 255. The car is tuned perfectly and gets fantastic gas mileage while maintaining very good daily drivablity on a decent sized turbo (65lbs/min gt40 compressor wheel). If I need to run boost over 25psi, cause my 660s can't keep up with that turbo, I just bolt on a non-turbo FPR and retune the car within a couple of pulls. There is so much misinformation about needing AFPRs that its mindboggling. Yes its nice to have I guess, but the car can be tuned just fine without one.

 

[chuckdog_5]

An AFPR is not manditory for a walboro 255. I've had zero problems on a stock regulator with a 255. The car is tuned perfectly and gets fantastic gas mileage while maintaining very good daily drivablity on a decent sized turbo (65lbs/min gt40 compressor wheel). If I need to run boost over 25psi, cause my 660s can't keep up with that turbo, I just bolt on a non-turbo FPR and retune the car within a couple of pulls. There is so much misinformation about needing AFPRs that its mindboggling. Yes its nice to have I guess, but the car can be tuned just fine without one.

thats interesting, ive been doing a lot of reading and you are the first one to say that you've had zero problems, but i have read some pretty horrible things so i think i will play it safe.

are these kits direct bolt ons or is there mounting needed. im not sure with what kit i want to go with, other than a fuel pressure gauge, wich kit comes with EVERYTHING needed?

 

[me612]

I too ran around with a 255 with no AFPR. My car also drove just fine without it, but it's when you're NOT driving, when you are sitting there at idle, THAT is when it affects things. That is when you're FP is the lowest, and that is when your stock unit can get over run. And that is what was happening to me. I would be driving in third gear, stop sign coming up, so I'd put it in neutral and slow down, and the car would bog way down, almost die at times because that's when the FPR is going to be over ran, at idle.

But I have heard of others doing just fine with the stock one also, it's kinda of a hit or miss, obviously not all cars act the same. Yours may work just fine without one, who knows. But again, if it were me, I'd keep that 255 in there, and get yourself an AFPR. I play it safe, that's me.

Chuckdog - if you want to get one, and you're really unsure of things, I'd recommend just to call up one of these vendors that has a kit you seem interested in, and just have them walk you through it, because then you know exactly what you will be getting, and get the warm fuzzy that things are right!

 

[1SloColt]

I too ran around with a 255 with no AFPR. My car also drove just fine without it, but it's when you're NOT driving, when you are sitting there at idle, THAT is when it affects things. That is when you're FP is the lowest, and that is when your stock unit can get over run. And that is what was happening to me. I would be driving in third gear, stop sign coming up, so I'd put it in neutral and slow down, and the car would bog way down, almost die at times because that's when the FPR is going to be over ran, at idle.

Yeah I just leaned the SAFC out on the low settings around 1k and 2k rpm, idles perfect. I guess its kinda like venting your BOV with a MAF before the BOV, hit or miss really like you said. Though I have seen plenty of DSMs with stock regulators on 255 walboros and have zero problems as well.

 

[chuckdog_5]

well thats good news, but im gonna take the safe way and get a afpr. not sure wich brand yet.