Fuel Regulator

[n00btalon]

I'm on rather a budget. I've heard with some bigger injectors a Regulator would work good, what ratio??? and is this true?

 

[scottsee]

Yes and no.... Injector compensation 'can' be adjusted by decreasing/increasing fuel pressure in the regulator. This is more of a band aid approach, people have increased their fuel pressure to compensate for to small of injectors. As for decreasing your fuel pressure to change aftermarket injectors to act as if they were stock would show no performance gain whatsoever.. To correctly control after market injector you need to either intercept the MAF hz signals, manipulate them and 'trick' your ecu into thinking you have less airflow then you actually do.. Or go with a system the has the ability to adjust the global/dead time for aftermarket injectors.

 

[DJYoshaBYD]

if you are stock.. then you got some really good options.... first... dont get bigger injectors or regulator until you get in to higher HP range.... try this out...

Do all of the free mods... do a search in this forum for things like:

"MAF hack"
"BCS mod"
"Fuel pump rewire"

Alot of this can be found at http://www.vfaq.com

really, stock, you can turn up the boost to 15 psi (from stock which is 10-11 psi) and get a substantial power gain... all you need to do it is a boost gauge and a manual boost controller.... I made my own boost controller and bought a boost gauge and altogether I spent $70... the BEST bang for your buck at this stage.... you can find the was I did it here:

http://www.geocities.com/chmwatson/FAQs/mbc.html

This works VERY well and saves money... the concept is really simple...I even used this on my friend's mazdaspeed 6 and shot him up to 300hp at 18 psi... stock was 274 at 15.8 psi.. we has a g meter so we got a very good estimate of what i would be....

just do a little searching and do all the free mods you can... they will really make a difference.... a down pipe and 3" catback wouldn't hurt either when your ready to change your sound and open your wallet...

hope this helps

 

[DJYoshaBYD]

oh yeah... then get SAFC (cheap but great at this power level) or DSMLink (expensive, but an invaluable tuning tool.... a must have if you are serious about breaking 300 or more HP

 

[n00btalon]

alright ill tell u what I have now and what i plan on doing.

I have the apexi cat back
stock 14b turbo
and a turbo xs bov


alright. now waht i want

around 350-400hp

What I'm thinking about right now (more later)

Intake pipe, FMIC, Evo3 16g (or t3/t4 dont know what would be better for street), boost controller, 550cc injectors.

Right now, im torn between this Reg and/or a SAFC (substantial tuning?) and/or fuel pump.

And the maft, trying to understand it all

 

[DJYoshaBYD]

get a fuel pump.. you will need it... if you are going that far in to horsepower, then you WILL NEED a DSMLink.... From what I understand they are the best for the price...

you could use an SAFC with that setup, but you wont hit 350 HP without a better way to tune... You are going to need a way to datalog otherwise you will not know what is going on inside your motor, then when something goes boom, you wont really know it until it happens

 

[n00btalon]

haha alright thanks! is that feesible with an evo3?? i have palm pilot where do i get dsmlink definitely dont know boom's unless i know where the boom is

 

[91DSMFAN]

You can find and learn about DSMLink here DSMLink. Unless Im mistaken your Palm Pilot will not work with DSMLink. However, you might be able to use PocketLOGGER with your Palm Pilot. Granted DSMLink would be far superior, PocketLOGGER is an affordable data logging option. You can find and learn about PocketLOGGER here 1g DSM Detailed Information. Good luck.

 

[nytescion]

or you can go with keydiver if you don't want to shell out the cash for the dsmlink. That's the way I'm going to go.

 

[haioku-rocket]

Don't need a FPR for that power level. A walbro 190 pump with a re-wire and a stock regulator will be more than good enough for what you want.


Spend money somewhere else besides a FPR. Like good EMS.

 

[rarson]

DSMLink has been ported to Palm for ages. It's just the PC app, which is written in Java, so it's fairly portable (Hal Landry, I believe, is the one who did the Palm port). Mind you, I know there's a ton of Palms out there with different features, but from my understanding, they all run Palm OS so they all should work. I don't have a Palm so I don't know for sure.

haioku-rocket knows what he's talking about, you can tell from his posts. So if he says a 190 is enough, I believe him.

I don't know how keydiver works, but my understanding is that it's a reprogrammed chip. The nice thing about DSMLink is that you can log just about any ECU signal AND tune the car as you need. I find that there's almost always some way to tweak the car whether to make it run better or to make it faster at WOT. So I like the ability to tune it whenever I want.

Tuning with DSMLink is also very easy and there's a TON of information available on the forums. It also seems pretty stupid easy to make the car faster versus, say, an AFC setup. I was running an AFC and the best I ran with a small 16g was 12.7. I installed DSMLink and tuned it a little and ran a 12.37. In my opinion, that's a pretty big gain for just that, considering the car was running pretty good on the AFC.

Then somehow I took off another 4 tenths by removing the A/C, PS, and a little more weight. Maybe a little bit better tune and some higher octane gas. Still, I don't quite get it, but my car has always been one of those "freak" fast cars.

 

[haioku-rocket]

Unless you have a cheap line on 550s I would go after the 650 injectors. 550s are too small for 350+ WHP.

As far as the keydiver DSM chip. Its pretty much what Rarson says. A re-programmed Eprom with loads of features (like removal of fuel cut, resize injector map for larger injectors the list goes on and on). To many options to list. Check it out at DSMchips.com.

BTW they reccomend a piggyback fuel controller for fine tuning.

 

[99gst_racer]

Pay attention to time stamps, guys. This thread is over a year old.....

 

[rarson]

Argh! Usually I catch that. What is with people digging up all these old threads?

 

[99gst_racer]

Argh! Usually I catch that. What is with people digging up all these old threads?

It's ok to dig up an old thread if you have a question pertaining to something said, or if there is important imformation to add. But, 91DSMFAN's post is a fine example of what NOT to do. This thread is about and pressure regulator, and he's linking to pocketlogger.... It simply wasn't nessacery to bring this back.

 

[91DSMFAN]

^^^You are right. I appologize for reviving this thread. For some reason it was listed as a new post when I logged in, its not like I searched for this topic and then revived it. I linked DSMLink and PocketLOGGER because of the data logging question. Again, I appologize.

 

[99gst_racer]

No problem. Just be a bit more aware of time stamps from now on.