Quote:
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Originally Posted by ZStig
Quote:
Originally Posted by gmd2003
It only flows better than stock at 80psi if it's getting enough power . Centrifugal pumps take a ton of juice apparently a stock system only provides 1/4-1/2 at best . The recommended Aeromotive wiring harness is a 30amp switch !!! Running them under power can make them fail early as well , which is why I was ok until recently . If ESS , AA, and VF say the regular pump is ok then I'm going back to it . Remember I was chasing the wrong pulley situation when I replaced mine . ( should have just changed my filter ) my two cents . Between my flywheel / clutch "upgrade " and this my new moto is if it ain't broke don't fix it lol . The problem of only improving one point of a stock system is the rest doesn't work together well . If you put in a lower bar fuel pressure gauge to make an aftermarket pump happy then you have to adjust the tune . It's a slippery slope .
My two cents
George
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wish I didn't read your initial post about how the aeromotive pump really increased your top end pulls 
My initial pump started going bad after 3-4 months, but you've probably put yours through a lot more wear and tear. Checking my air fuel ratios is probably my next step. Maybe a code reader can tell me about how the pump is performing too.
What about E46 M3s that use this in their HPF turbo setups, I didn't see them upgrading wiring in their install video. Is our car that different? |
It did great at first compared to my old pump with 50 track days and 60,000 miles on it . The Aeromotive does need way more power than our cars put out to the stock pump to have good flow at high pressures . The stock pump is traditional which uses a lot less power than a centrifugal under high load . I'm pretty sure the turbo guys were using a 3 bar regulator ( our stock is 5 bar/72psi ) which makes things a ton easier on the pump , but like I said you have to tune for that . When you have a pro efi ECU you have a lot of options . I chose to ignore the advice of the manufacturer as well but it was a bad idea listening to random E46 m3 posts saying its fine not to wire it properly . Bottom line both our pumps died really early , and I don't think that's a coincidence . Mines not dead per say , but just can't handle fueling once I reach 7 psi of boost . You will not have any fuel pressure codes as long as it's making 72 psi ( normal ) , unfortunately at peak boost we need 80 psi . Just another lesson , learn from it and move on . Looking at my dyno , I'm really pleased with the curve , I mean hell it made 430whp at 7000 rpm before the fueling issue kicked in . I should be a good 450-460whp with that sorted . I'm just glad I didn't have to learn this lesson with a blown motor .
George