is fuel pump upgrade necessary for light bolt on?

[duappleganger]

OP, Flame decals and a big ass spoiler nets you ~20whp, I shit you not.

[fortressofcomfort]

Originally Posted by dhsieh911018 just want to know that if an fuel pump internal is essential for gen 2 with light bolt on. Just SURE SRI and Corksport exhaust. I've read most of the threads abt fuel pumps and it looks like i'll definitely need one in the future but currently I only have budget for an intake and exhaust. Will the gen 2 run fine with SRI and aftermarket cat back exhaust only?? thanks for the replies!

Just look at deadlandxtreme's story or my story. He blew his motor up doing small mods. Look at my story... You'll see VERY low fuel pressures (~700psi) with nothing more than an intake/tip and stage 1 map. My car is a '12 and has only 3,700 miles on it!

*** You are playing Russian Roulette with these cars if you mod them without upgrading, or at least monitoring, your fuel pump/pressure. ***

We should think about adding a statement like this to the Sticky, so these kinds of threads don't get started over and over.

[dhsieh911018]

Originally Posted by J_Logik OP Many have given you sound advice on what to do, but it doesn't seem to be sinking in, so perhaps I can spell it out in a different manner, so that it makes more sense. What you want: SRI + CBE = mazda24/7 "cool sounds bro, must be fast becuase racecar" What MSF recommends SRI + (optional TIP) + AP + HPFP = properly monitored and regulated FASTER, safer car with further help from experienced tuners down the road or in an even simpler way..... $200 + ~$700 (for no power gain)= sound and most likely zoom zoom boom and no girls or $200 + $500+ $350 = "Wrexx in Effect => zoom zoom and the poom poom" on a stable car!! Capiche???

very well organized answer, thank you so much, i mean it....no sarcasm here....actually brought out the numbers instead of...."fsaidfasdhf FUCK soidfaish STPUID saiodfhaisuh" thank you

[DownSideFX]

Originally Posted by bbode0 Wouldn't be to surprised if your fuel pressure is low, GenPu's factory pump internals dont seem to hold the same as the Gen1 stock internals. There have been plenty of threads from GenPu owners with just an intake that are having FP problems.

Me either, I agree with you completely. I'll post my findings here once I get some logs before the internals install.

[Elusivellama]

Originally Posted by fortressofcomfort Just look at deadlandxtreme's story or my story. He blew his motor up doing small mods. Look at my story... You'll see VERY low fuel pressures (~700psi) with nothing more than an intake/tip and stage 1 map. My car is a '12 and has only 3,700 miles on it! *** You are playing Russian Roulette with these cars if you mod them without upgrading, or at least monitoring, your fuel pump/pressure. *** We should think about adding a statement like this to the Sticky, so these kinds of threads don't get started over and over.

It's a real eye opener to see your logs with just a SRI/TIP and stage 1 map. The way I look at it, Mazda has to reach a price target with this car. They could certainly have put in a quality HPFP, for example, if they had wanted to...but that might have added an extra $200 (just making up numbers) to the cost, and you don't even get to see the HPFP in action. Mazda has to account for the unfortunate fact that there are people out there who would rather save $200 and live with a shitty fuel pump that's just adequate for the stock tune and parts than pay an extra $200 and have a quality fuel pump that's overengineered for the stock tune/parts, and is ready for more mods. Yet, these same people will pay $300 for a carbon fibre-look interior (or whatever the cost really is for this useless 'mod').

[bigriver]

$350 is nothing. I'm glad they overengineered the transmission/driveline so it can handle 400+ hp.

[fortressofcomfort]

Originally Posted by Elusivellama It's a real eye opener to see your logs with just a SRI/TIP and stage 1 map. The way I look at it, Mazda has to reach a price target with this car. They could certainly have put in a quality HPFP, for example, if they had wanted to...but that might have added an extra $200 (just making up numbers) to the cost, and you don't even get to see the HPFP in action. Mazda has to account for the unfortunate fact that there are people out there who would rather save $200 and live with a shitty fuel pump that's just adequate for the stock tune and parts than pay an extra $200 and have a quality fuel pump that's overengineered for the stock tune/parts, and is ready for more mods. Yet, these same people will pay $300 for a carbon fibre-look interior (or whatever the cost really is for this useless 'mod').

Maybe it has something to do with the fact that the pump is really designed for the VAG 2.0T motor. That engine only moves about 200hp; maybe 263hp is the nominal limit for the stock pump and some genpus are just lucky they get one that is manufactured overspec. The Autotech box that the internals come in has a note about extra camshaft key wear... Since the FP is keyed to the camshaft it can actually wear down the key and this is apparently happening in the VAG 2.0T engines. There is no evidence I've seen that the MZR cam key wears out so I don't think we have to worry about that. It is a shame that Mazda didn't equip this car with an overengineered fuel pump; especially when a drop in FP can take out your entire motor if the conditions are just right. They did a good job over engineering everything else.

[Sid3wayS]

The vw cams are made of putty and almost always go to shyt when you upgrade the fp internals. Ours are alot stronger and the lobes are able to handle the higher forces exerted on it.

[i8urgti]

Originally Posted by evilgrin U guys are way too fukn soft on noobs! I have'nt asked a single question (especially an ignorant one) I've just read and researched and I pretty much know what I need to know to do what I need to do to my car. Not saying I could'nt possibly need a little "micro-tuning" help down the road, but I have a firm grasp on the fudamentals. I'm gonna donate as well, so don't call me a fukn brownie either! Sorry for the rant, I just think some guys should'nt even be trying to mod their cars without some serious remedial 101 fundamentals type shits. I'm done.

this is the way it used to be. but some faggots came along, want to make it a happy place where questions that have been answered already are ok to make threads about.

[Stingray69]

Has anyone put in internals and not held enough FP? I am thinking of ordering internals but don't have an AP yet. Is it a pretty sure bet they will work? If I have to stock out for warranty can the dealer tell there are internals installed. I havn't been eager to flash ECU yet for concern of a denied warranty claim. I have read and hear you guys loud and clear about dropping FP with just SRI and TIP. Perhaps thats why I barely get any soot on the back these days. Maybe thats what that soot fanatic from Canada should have done.

[Bucker]

Wow.

The STOCK HPFP was designed for STOCK fueling demands. Running a pump that pushes more fuel at stock levels would encourage the failure of relief valves, etc. It doesnt COST anything more or less for different HPFP internals for the OEM, it is just a slightly different spec to get slightly different fuel pressues.

OP, get a fucking HPFP.

[adrager622]

These questions are getting out of hand. I think it's time to put the Genpu up for sale.

OP, read the sticky about the intro to your Mazdaspeed 3. For the love of God, fucking read and read! These questions have been covered thousands of times. There is ample information on here that explains every question you could ever ask.

[PDigg]

I read, I searched... It lead me to doing the RMM first, and then scaring the shit out of me enough to do HPFP, AP, SRI and TIP all at the same time because I wasn't willing to chance just doing the intake alone.

You don't need to hear it from another person, so I'm just here to chime in that you're kind of a douche.

[jeopardy98]

Shit, after all the reading I've done on this board about HPFP's, internals, and which oil to use I'm scared to install a damn RMM without having my AP hooked up to log

[fortressofcomfort]

Originally Posted by jeopardy98 Shit, after all the reading I've done on this board about HPFP's, internals, and which oil to use I'm scared to install a damn RMM without having my AP hooked up to log

Yeah don't change your stereo, rims, springs, tint, headlights, or Nything without getting the CDFP upgrade first. There was a guy who turned his stock Bose stereo up to 60 and guess what happened...

[jeopardy98]

Originally Posted by fortressofcomfort Yeah don't change your stereo, rims, springs, tint, headlights, or Nything without getting the CDFP upgrade first. There was a guy who turned his stock Bose stereo up to 60 and guess what happened...

Zoom Zoom Boom!

[Elusivellama]

Originally Posted by fortressofcomfort Yeah don't change your stereo, rims, springs, tint, headlights, or Nything without getting the CDFP upgrade first. There was a guy who turned his stock Bose stereo up to 60 and guess what happened...

Dance Central - Rump Shaker - Hard 100% - YouTube

[mswierse]

Originally Posted by btstarcher Torque is OK...but as I said previously, if you're willing to spend the $$ for a CBE, that money would be more wisely spent on an AP.

I agree 100%... I will have an AP and FP internals in the spring. Not even considering CBE, not really sure why anyone would until they are otherwise fully bolted.

Originally Posted by dizzydtrain @dhsieh911018, definitely get an exhaust first. It's the only mod you will need and power is really noticeable. These guys clearly don't know what they are talking about when they say AP or Torque--this car has plenty of torque, no need for more.

LMFAO... my phone is so fast because it has Torque!

[BobbleHead]

Originally Posted by Elusivellama You would gamble your engine on a $350 part that's known to be barely adequate as it is? That's the question I asked myself.

agreed. Right after I got my AP and did my first datalog, I found my FP below 1000 in areas at WOT. I didn't have any money left over but I ordered internals right away with my credit card. I would rather pay off $350 then borrow thousands for an engine!

Originally Posted by jashw311 Deadland's blown motor thread shuold be a sticky at the top of Genpu section so we have a place to point these guys when they ask why they need internals. Or, we can just start letting them go ZZB and laugh at the carnage.

lol we have the same avatar. you wanna be butt buddies?

[uncorked11]

When EXACTLY are fuel pump internals needed???

This is why people want to hang you! Mind you this is covered at least once or twice a week.

[ASHMS3]

Originally Posted by black07spd agreed. Right after I got my AP and did my first datalog, I found my FP below 1000 in areas at WOT. I didn't have any money left over but I ordered internals right away with my credit card. I would rather pay off $350 then borrow thousands for an engine! lol we have the same avatar. you wanna be butt buddies?

Absolutely!

[mr6]

i have a cai and an ultragauge to monitor. if i go boom, i put the stock intake box in real quick, and go to the dealer for my new motor. i have two other cars to hold me down while under repairs. done deal...

thats not to say i disagree with the need for internals. fp concerns are why i didnt get the TIP as well. im stopping at the intake (well i have an ssp & rmm too) until i save up the ends to get an AP and internals. then i'll slap on a tip and e-tune it and be done. it's important that i can stock out relatively easy on a bitchy lil motor like this.

and to the guy who said our cams are stronger than vw cams and wont suffer premature wear...got any proof of this? metalurgy test? stress tests? anything? or are u just spitting out what u read in another thread? it's a concern cuz if internals are indeed wearing out cams then i may just stop at an intake and call it day! lol

while we're on VWs, they dont blow up from fuckin intakes! wtf was mazda thinking?! i shoulda stayed in my vw world and bought a new gti but then i would have to void the warranty just to get ms3 powaahh, so i bought a bitchy lil mzr that blows up from intake mods. lol what happened to the days when intakes were a quick and easy way to get power?! oh wait, that's still true for everyone but mazda lmao! i still luv this fuckin car though!!


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[FLHXterp]

Originally Posted by mr6 i have a cai and an ultragauge to monitor. if i go boom, i put the stock intake box in real quick, and go to the dealer for my new motor. i have two other cars to hold me down while under repairs. done deal... thats not to say i disagree with the need for internals. fp concerns are why i didnt get the TIP as well. im stopping at the intake (well i have an ssp & rmm too) until i save up the ends to get an AP and internals. then i'll slap on a tip and e-tune it and be done. it's important that i can stock out relatively easy on a bitchy lil motor like this. and to the guy who said our cams are stronger than vw cams and wont suffer premature wear...got any proof of this? metalurgy test? stress tests? anything? or are u just spitting out what u read in another thread? it's a concern cuz if internals are indeed wearing out cams then i may just stop at an intake and call it day! lol while we're on VWs, they dont blow up from fuckin intakes! wtf was mazda thinking?! i shoulda stayed in my vw world and bought a new gti but then i would have to void the warranty just to get ms3 powaahh, so i bought a bitchy lil mzr that blows up from intake mods. lol what happened to the days when intakes were a quick and easy way to get power?! oh wait, that's still true for everyone but mazda lmao! i still luv this fuckin car though!! Sent from my iPhone using Tapatalk

Mostly true I guess except for one small problem.

It's still a VW full of ghey.


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[Sid3wayS]

Originally Posted by mr6 and to the guy who said our cams are stronger than vw cams and wont suffer premature wear...got any proof of this? metalurgy test? stress tests? anything? or are u just spitting out what u read in another thread? it's a concern cuz if internals are indeed wearing out cams then i may just stop at an intake and call it day! lol Sent from my iPhone using Tapatalk

Buy a set of autotech internals and right on the box in big red fucking letters it states that the vw stock cam is shyt and will take a shyt if not upgraded. Go on any vw forum and search it and you will see many owners saying how they fucked their shyt up. Try and find one such thread here.

Edit: actualy here is one: http://myfastgti.com/volkswagen/thre...sure-Fuel-Pump
If thats not good enough type "gti cam" into the google and read all them for youself.
Im not in any way knocking vw but facts are facts.

[mr6]

Originally Posted by FLHXterp Mostly true I guess except for one small problem. It's still a VW full of ghey. Sent from my iPhone using Tapatalk

Hey hey hey, i spent 10 years over at vwvortex and they don't blow from intakes. In fact, we didn't even have a cute nickname like zoom zoom boom cuz it's just not a common thing for VW engines to pop all the fuckin time. So having said that, i still bought a MS3 cuz dubs have PLENTY of other problems i got sick of dealing with...But the motors are fuckin SOLID...just full of weak suace! 2.0 turbo and only 200 hp...M Z R > V W

Originally Posted by Sid3wayS Buy a set of autotech internals and right on the box in big red fucking letters it states that the vw stock cam is shyt and will take a shyt if not upgraded. Go on any vw forum and search it and you will see many owners saying how they fucked their shyt up. Try and find one such thread here. Edit: actualy here is one: Warranty Extention,Intake Camshaft,Camshaft Follower & High Pressure Fuel Pump If thats not good enough type "gti cam" into the google and read all them for youself. Im not in any way knocking vw but facts are facts.

So all we really have are anecdotal accounts and Autotech saying so...hmmmm....typical forum "fact".....well.....that's good enuff fo me! I've bought mods with less support than that!

[fortressofcomfort]

In b4 big fight and someone getting banned.

[bigriver]

anyone who starts a new "do i need fp" thread is an idiot or a troll.