Malpassi rising regualtor

Blk-Jet · Post by **Blk-Jet** » Mon Mar 15, 2004 4:33 pm

Anyone running one of these units?

I've bought one but need some info on the adaptor plate. Pics would be great!

Cheers

Post by **smorison** » Mon Mar 15, 2004 7:54 pm

i don't think they are worth the cost of fitting one properly (and tuning it)....

when UAS tested one on my car got a 1.5kW gain.

not sure how they fitted it i wasn't there

kaveman · Post by **kaveman** » Mon Mar 15, 2004 10:45 pm

well i have a sard fpr fitted

dont know what kw picked up, but notice the pickup was a lot better

dannyboyau · Post by **dannyboyau** » Tue Mar 16, 2004 5:05 am

i am using one

I made the bracket myself and bolted it to the fire wall then used earl fuel fittings and lines.

i will try and take a few pics for you

MADFTO · Post by **MADFTO** » Tue Mar 16, 2004 9:25 am

Just remember, a fuel regulator is not a power mod, it's more a mod to prevent your car from losing fuel pressure from sudden heavy loads as it will try to increase pressure while the fuel drawing rate rises.

Sure, you might get a minor increase in kw, but that means you were probably out of tune on the lean side. Any power gain to be had can be gained from remapping your fuel maps (or getting a piggy back and altering them that way).

Mind you, if you have a weak fuel pump, nothing is going to fix that than replacing it =P

Blk-Jet · Post by **Blk-Jet** » Thu Mar 18, 2004 5:39 pm

Thanks guys,

Dannyboy, if you could send me some pics of the adaptor plate that would be great.

I've had my heads ported and matched, so the FPR will aid it in that way, especially with the new haltech installed.

Cheers

dannyboyau · Post by **dannyboyau** » Thu Mar 18, 2004 10:23 pm

depends where you going to put it, on type of bracket

decide where in the engine bay you will fit it then you will need to make a custom bracket then you will need to make modifcations to the feul lines and original FPR

i will take a few pics of it on the car

dannyboyau · Post by **dannyboyau** » Thu Mar 18, 2004 11:00 pm

i notice that some people are saying fuel pump and FPR and injectors are not power mods, but fuel system modifications will be needed if you intend to increase your horsepower by any substantial amount. Because you do all the things u like but with out more fuel u aint going to get much more power.

http://www.supras.com/~riemer/sonictech ... Ctech.html

http://www.z31.com/software/injector.pl

MADFTO · Post by **MADFTO** » Thu Mar 18, 2004 11:21 pm

*grins* I'd classify them as support mods =P

True that they don't provide power on their own, but they are neccessary upgrades if you are doing serious power mods.

ruchi · Post by **ruchi** » Thu Mar 18, 2004 11:26 pm

I agree with what you have said dannyboyau. As I am one of the people who have made the remarks you mention, let me clarify them a bit more.

These are not power modifications rather they are capacity modifications.

* By themselves these mods will not provide any extra power

* With these mods, it will give you the capacity to sustain any power modifications you may make, that require more fuel than what the existing system can provide

* Without these mods, any modification you make that requires more fuel than what the exisiting system can supply will lead to the fuel mixture becoming lean, limiting the power output and possibly causing other issues

Its a bit like replacing 50w speakers with 100w speakers. They won't be any louder by themselves, but they provide you with the capacity to produce more noise if you decide to upgrade your head unit or amp.

dannyboyau · Post by **dannyboyau** » Fri Mar 19, 2004 12:32 am

well depends how u look at it.

you do major mods to an engine with out modifying any part of the fuel system, you will get a power increase. But not as much as if you increase the capacity of the fuel system as well.

Also on NA if you have done your breathing mods, extractors, throttle body, exhaust, cold air induction kit and pod filter.
A fuel managment computer combined with bigger injectors, FPR and fuel pump will give you a power increase. above what you got before you did the fuel mods.

What needs to be remembered that each part adds to the whole.

you take away one and you will lose some power.

Basicly It is the burning of the air fuel mixture that gives u power, if you burn more air and fuel you get more power, of course you need other mods to deliver more air in and out of the cylinder.

If the original fuel system is capable of delivering a huge increase in fuel then u wont need to do anything to the fuel system.

But 166cc injectors are very small injectors and my injectors (390cc) were at max duty cycle with a 2 extra 550cc injectors to get 400 Hp, so i believe that the 6A12 is running at higher then 50% duty cycle on 166cc injectors.

Post by **smorison** » Fri Mar 19, 2004 12:46 am

dannyboyau wrote:
But 166cc injectors are very small injectors and my injectors (390cc) were at max duty cycle with a 2 extra 550cc injectors to get 400 Hp, so i believe that the 6A12 is running at higher then 50% duty cycle on 166cc injectors.

they are aren't they i was amazed when i found that out, i could be wrong on the duty cycle but i'm sure i read that somewhere. it'll be in the 700 pages of technical documents from the FTO manuals, one day when i have time i'll read through and find it again.

the other thing is going to forced induction all of a sudden you squeeze a whole lot more fuel / air into the same space so the figure of 50% may not be that far off.

dannyboyau · Post by **dannyboyau** » Fri Mar 19, 2004 12:50 am

check this out

I am not sure how accurate it is

http://www.z31.com/software/injector.pl

Post by **smorison** » Fri Mar 19, 2004 12:55 am

yeah i had a look at that ...

i imagine it's pretty accurate...

again i need to go check out my tech manuals the info will be in there somewhere

dannyboyau · Post by **dannyboyau** » Fri Mar 19, 2004 12:58 am

Injector size: 170 cc/min injectors(16.2 lbs/hour)
Number of injectors: 6
BSFC: 0.40
Duty cycle: 0.85

This combination will supply fuel for 206 horsepower

Injector size: 170 cc/min injectors(16.2 lbs/hour)
Number of injectors: 6
BSFC: 0.45
Duty cycle: 0.85

This combination will supply fuel for 183 horsepower

Injector size: 170 cc/min injectors(16.2 lbs/hour)
Number of injectors: 6
BSFC: 0.50
Duty cycle: 0.85

This combination will supply fuel for 165 horsepower

Injector size: 170 cc/min injectors(16.2 lbs/hour)
Number of injectors: 6
BSFC: 0.50
Duty cycle: 0.50

This combination will supply fuel for 97 horsepower

Injector size: 170 cc/min injectors(16.2 lbs/hour)
Number of injectors: 6
BSFC: 0.40
Duty cycle: 0.50

This combination will supply fuel for 121 horsepower

These are taken from the page that the above link goes to, not sure how accurate this calculator is

Non turbo engines are generally around 0.5 BSFC, while turbocharged engines are generally around 0.65.

dannyboyau · Post by **dannyboyau** » Fri Mar 19, 2004 1:01 am

if it is right then there cant be much capacity left in the FTO injectors

FTO338 · Post by **FTO338** » Fri Mar 19, 2004 10:38 am

ruchi wrote: Its a bit like replacing 50w speakers with 100w speakers. They won't be any louder by themselves, but they provide you with the capacity to produce more noise if you decide to upgrade your head unit / amp.

heheehe of the topic here It won't be louder, but it will be clearer

& u don't have 2 change the head unit either, a amp will do the job.

Sorry guys, I just like to clarify this thats all.

ruchi · Post by **ruchi** » Fri Mar 19, 2004 10:59 am

If you want to continue this further, start a new topic, but the clarity of a speaker does not directly correlate with the wattage of a speaker. Rather it is the overall design of the speaker, including the materials from which they are made. The clarity is determined by the frequency response (range and flatness) of the speaker not the wattage. If a lower powered speaker has a better frequency response, then it will produce a clearer sound than that of a higher powered speaker with a worse frequency response.

FTO338 · Post by **FTO338** » Fri Mar 19, 2004 11:25 am

Relax ruchi, i'm just making a general point here from experience & my point isn't saying your are wrong either, so take it easy man

Anyway, danny can u send me some pics of your FPR position, i've installed one in mine as well, as it use to run well with the UniChip (i've uninstalled it for now). And i want re-position FPR

dannyboyau · Post by **dannyboyau** » Fri Mar 19, 2004 3:05 pm

http://f1.pg.photos.yahoo.com/ph/dannyb ... r.jpg[url]