Is an RB turbo-back enough reason for a walbro fuel pump?
 

Is an RB turbo-back enough reason for a walbro fuel pump?

I need a fuel pump regardless. Just wondering if the walbro is too much considering that the exhaust is my only mod so far.

Sorry if this is a repeat, but I've already spent 1.5hrs searching.

Any recommendations/comments?

Id be interested to hear this response as well, I have the turbo back exhuast, new turbo, intake.....and am probbably hitting 11 psi....might add a pump to my list soon depending on the responses here

Sounds like you and I are in the same boat....cept the intake. (new turbo will be done in 2 weeks :)

yes

won't run too rich?

Yes, you'll run rich, but it's much better than the alternative.

After owning a turbo II for a while, there are many things I wish I had done differently. The very first thing you need to decide is how far you're going with the car. If you're going to be content with 225-235 rwhp you'll get along just fine with the walbro, safc, and some 720's just for safety.

I ran just the walbro in 11-12 pounds of boost for over 6 months without a problem. In fact I had the car dynod, and it was actually in the mid 11's for a/f ratio. Every car is going to be different though.

With just the walbro you will run rich, your gas mileage will probably decrease a little bit as well. However, it gives a bigger safety net, and the stock pump is one of the first things you'll need to upgrade as you start putting down more power and runing more boost.

depends on the boost level. most likly yes

it's also posible the pump alone isn't enough

Then A PUMP it is...and some injectors......

and a way to control those fuel upgrades lik a piggy back, such as the safc, or an fcon, or a standalone

o yea ur going to need a fuel cut defender as well

what does a fuel cut deffence look like?

the walbro would be one of the first upgrades I'd make. I didn't make that upgrade after installing my exhaust, intake and fuel cut defenser and it leaned out at 8k one day screaming down the hwy and blew an apex seal on a 25k mile engine.

Get the Fuel Pump Now!!! :D

Yes. You need a pump. My friend blew up his engine running the RB turbobkack + FCD. After that he put in a Walbro and an AFC and it ran fine. He did lean it out some with the AFC though so Im sure youll run plenty rich with the Walbro and stock injectors.

won't he need a fuel pressure regulator as well??

Ew I was about to order the rb turbo back and fcd.. but I don't want my engine going boom so maybe I'll hold off untill I have enough money for a walbro... =/

RB turbo back+FCD+SAFC+walbro 255=:)

Apexi Super AFC?

Any recommendations for an intake?
(might as well break the bank all at once)

Better yet, would someone like to just give me a reasonable shopping list?
I have the RB turbo-back, FCD, and my turbo is being rebuilt.
Which of these do I need: Fuel Pump, injectors, SAFC, intake, fuel pressure regulator?
Any recommendations on brands/models would help.
I'm not looking to build a monster, just something I can be proud of :)
Thanks.

ok for ur setup i dotn believe u really need a fuel pressure regulator..wat u should have are some 720 secondaries..greddy makes some affordable ones..ull want a walbro 255, an safc or hks fcon...but on a budget just go with the safc..check ebya for some great deals on those..and for an fcd there is a guy who sells one really cheap that he makes himself and ive heard they are even better then the onesmade by racing beat and mazdatrix etc. so u can check that out. have fun blowing ur budget :)

sounds like a plan
thanks for the input!

OK, i'm not big on injectors. There are 2 secondaries, right?

they have walbros on ebay for 98 bucks. Just be carefull not to strip out the screws getting the plate off.
98 bucks is worth it

If youre just going to run the car with the RB turbo back and nothing else, all you need is the FCD and Walbro. I ran my car that way for a while and never had a problem.
If youre gonna get an intake I would add an AFC on to that order.
If youre going to do exhaust, intake, AND turn up the boost a little more yourself, Id definitely get some larger injectors also.

Now that's what I was looking for, thanks

I have a 89 T2 and I have a walbro, an apexi intake, a fcd, and a RB exhaust from mazda trix. My experience is your fuel economy goes way down, like 33%. I know its running rich and in cold weather it runs like the choke is on. Im thinking I really need the safc.

Did you guys set yours up yourself and what are the recomended settings ?

Get the walboro asap. I bought my car last summer with only 78k miles on the stock engine, and it came with the RB exhaust and FCD on it. I added an intake and 2 days later, boom engine is gone. You will thank yourself. I wouldnt even drive it with the exhaust until you get the walboro and FCD

Good to know.
By the way, I spoke with the guys from RX7.com and they were very VERY strongly against the Walbro. They basically said "you get what you pay for" and that the walbro doesn't retain the pressure it claims to produce and they often see problems rooted to that pump.
FD fuel pump it is.

That's interesting to hear considering damn near everyone is recommending the Walbro. :(

The RX-7STORE told me the same thing! So I got what they call their RP Competition Fuel pump! So for no probs but it looked like a regular old Denso pump, but to keep from Identifying the pump and getting it cheaper elsewere they took a soldering iron and melted the id# on the top so you couldn't tell what kind it was! Still a great pump, like I said Ive had It for about 1.5 years now!:D

the walbro is a good pump, anyone who says otherwise just wants more of your money.

I currently have both pumps and so far none have given me any problems!;)

I don't think so.
I got the FD fuel pump cheaper than I could find the walbro.

How many LPHs does the FD pump squirt out?

The reason people are saying they blew their engines with the Racing Beat turbo back and a FCD is because the FCD allows the engine to boost spike and get extremely lean at upper RPMs.
Like 8000 RPMs?? Come one guys, this is a turbo rotary. :D

Im gonna have to agree with that.