S2badboy

what a load of bollox rick, u sound like jamsport

Rick

Yes it was

Rick

What's a load of bollocks?

notSteveS2

still find that hard to believe... that power with that boost on mfi...


with std head...!!!

SafeChav

This threads gettin a bit untidy......

notSteveS2

Rick

Setup properly, with the ignition as advanced as possible, it's easy enough. grey RS's car makes 230hp on 16psi and mfi - but with a trick head. AndyRST's car is on a std head and makes 209 @ 16 psi also - look in this months Peformance Ford. The more boost u add, the bigger difference a good cylinder head makes.

notSteveS2

yea i see wot ur sayin...

its just that i had a ported polished Field motorsport head and ran 18psi and made 190bhp... in last car... with GRS and set up...

mind u did make 242ftlb!!! so still went well!!!

DazC

iTrader: (1)

What's this issue with MFI? It can fuel a lot more than people seem to think. There was other mods Rick could have done to his MFI system before going to the MF2 5th injector....

I plan on making more than 250bhp with between 20 and 25psi*!

* those figures not set in concrete yet as my tuner may decide to utilise more boost!

DazC

iTrader: (1)

Just like to add, the standard head starts to struggle at 230bhp regardless of boost pressures.

notSteveS2

coz mfi is shit mate...

at the end of the day its crap and limited and fifth injector is not a gd way of makin up the fuelin...


wots to make it fuel each cylinder equaly???

SafeChav

Here we go

notSteveS2

well can u supply a decent answer?

notSteveS2

im not criticising ppl for usin it... it does its job... but i just cant see the accuarcy in 5th injector...

if u can explain how it is accurate ill listen...

DazC

iTrader: (1)

Do you honestly think all 4 cylinder induct at the same time?

Yes it is old technology and yes is is fundamentally flawed compared to a fully electronic system, but it can supply the fuel needed for big BHP.

Although I currently run the original MFI set up, it will be going in the bin for something slightly more advanced.

notSteveS2

its not a question of inductin at the same time...

im sayin how does it split fuel equally???

as surely not fuellin each cyliner equally is not gd...

im not puttin the system down... but IMO 1ce u have pushed it to the point where it needs 5th injector i think u shud change over to sum sort of EFi system...


i wud just liketo no how it splits fuel equally?

mitchrst

cant you 2 just fook off back to janals playground we know he sent you its obvious

notSteveS2

wots that bitchrst???

sorry mate no1 sent me... i have a car.. its ford... this is Passionford so i have a right to cum on ere...

did i ask u a Q??? no???

so fuck off u mug!

im talkin bout sumthin to sum1 (not u) and tryin to understand y ppl go down this route...

Loads of ppl go weber management and its for a reason... just coz mine was done by jano y u get ur bk up???

jealous of sumthin??? if not shut up and fuck off...!!!

SafeChav

AFPMSL

Jano is easily upset so you can expect some abuse back for that

notSteveS2

this is soooo let down by certain ppl....

its a great place to cum for any info but u always get immature keyboard warriors who have to give it the big'en...

y not shut up n not reply if u got nothin decent to say???

u have a problem with jano or his work???

if so take it up with him to his face like a man or race 1 of the cars in Question to see if theres a problem with his work????


????

notSteveS2

so bk to the topic ...

does the fifth injector supply the fuel equally???

if not is that dangerous or cause problems???

thanx in advance for maturaty and knowledge!

SafeChav

I think that point DazC was trying to get across is that while the injector sprays continually each cylinder fires respectively and gets 1/4 of the continuous 5th injection spray. Its not going to be 100% equal among all 4 cylinders but does the job probably as accurately as the MFI.

As with everything you pay what you get, if it was no good people wouldn't buy/use them.

notSteveS2

ok i see...

so is that dangerous??? will it cause probs???

and how does it no how much fuel to pump in so its not over fuelin?

SafeChav

I cant go into too much detail i haven't done a lot of modifying in my car. Things like 5th injectors would be set up by tuners, if it was dangerous then they wouldn't fit/supply them, if you can afford EFI/aftermarket management then all the better.

Some people can't afford that though, or don't want to hack appart the loom in their spanker S1, so this accomodates for those people if you get me

LEE-RS

the 5th injector is electronic it as a boost sensor and you can program it to come on at what ever boost the mfi starts to run lean at

notSteveS2

i see...


thanx for the info... i have a bit of knowledge but always keen to learn more and im honest with wot i think...

so hopefully dicks will stop jumpin the gun and listen b4 openin there mug mouths...

thanx for ya info... 1ce again.

thru my experience i do think that if u had a car on MFi and changed it over to EFi without changing a single other bit of spec u wud gain power coz of the effiency of the management...

also as i sed i had pretty gd spec MFi car b4 my current 1 and i found it hard to achieve over 200bhp on that management...

where as with weber im makin 215bhp at 16psi with std bottom end and head apart from the CVH35 as i sed b4 so this leads me to believe u can benefit more from the management change!

but as u say its not always a option for every1!

SafeChav

Its more than likely......me myself am changing over to EFI just because of how finnecky the MFI system is, its taken a lot of trial blood sweat and tears just to get my car to idle properly. The MFI system is too susceptable to external components affecting how it operates aswell.

It can only be a step forward

notSteveS2

my points exactly...
i used to take me car into CO check every couple of weeks and it was never as it was set..


it changes wen it wants... no matter how gd ur meterin head is..

specially as u can pick up everything needed to go fezzer EFi on OFAB for like Ł50... as my mate did!!!

Cawood

got some autosol, never managed to get my zorst that clean, dont av a buffer tho

RICK

can you please tell me YES or NO for the cam???!?!??

pm'd u numberous times, u never reply. been waiting a month now!

Rick

With reagrd to fuel distribution of a 5th injector, how do you think the many Single point injection cars work? The fuel is atomizied and injected into a very turbulent air stream of boosted air. Whereever this air goes, so does the extra fuel. So if a cylinder isn't getting as much air, then it's not getting as much fuel either - basically it works.
Mfi has proven to be very reliable for me, but i have plently of experience and the equipment to know if it is working correctly. I will be going to Efi at some point, purely for the greater control it allows.

Also, with reagrds to power outputs - boost generally means torque - not power. I was making around 180lb of torque on my 11psi and 210hp (208 to be accurate). Peak power was well over 6k - basically the engine revved. If you look at a car with std head and small turbo that puts out 210hp, the torque figure will be much higher, and the peak power, lower.

SafeChav

Tell me where you can get whole OFAB set ups for Ł50 ill have 20 please.........

Think you may of exagerrated a little there but it is very cost effective i agree

Sticky.

iTrader: (4)

I thought you had one of karls ported heads

T28 RST

Im still on MFI and making 205@ the wheels with 16psi boost on a 1.6 CVH

Here is the graph

http://img.photobucket.com/albums/v11/rsturbos/205.jpg

Rick

I have mate - talking about old engine.

Cawood

just incase you dint get that pm rick

yep i'll take it

notSteveS2

T28 RST thats more believeable and u have a tubular manifold... have u got much head work??


Safechav....

my mate Gucci boy bought whole OFAB set up for Ł50 mate... everythin he neded to swap over... but he sold it on(also for Ł50) and now he regrets it!!!

T28 RST

There is the spec

1618cc CVH, stage 2 big valve head (ported and polished), Newman cam, solid lifters, piper vernier, wire ringed block, lowered compression(7.5:1), ARP conrod Bolts, heavy duty bearings, high pressure oil pump, AVA ecu, 7000rpm limiter, AVA modified fuel system, AVA high flow tubular manifold, T28 turbo, 360 bearing, reshaped cosworth front pipe, AVA Large capacity intercooler, samco water and boost hoses, magnecor leads, magnex exhaust, modified airbox, AP 4 paddle clutch.

DanRSturbo

I perfectly good setup Series 2 can make pas the 200 barrier, Tony Turbo's 1st engine did, mine did, Andy RST's did, and still is. You don't need to spend a great deal of money on the engine unless it's fucked in the first place. Mine made 190 with 18psi on the rolling road day in performance ford this month, whereas Andy's still made 200+. (The git lol)

DazC

iTrader: (1)

That should not happen. If you gain power from purely a management swap then the MFI wasn't set up properly. The MFI is only limited by your tuners knowledge of the system and what it can do and how to increase it's fueling capabilities.

What you should gain from ditching the MFI is a nice boost in drivability and the extra functions from the management like boost curves and extra potential if you should ever need it.

The reason why it IS a question of cylinders not inducting at the same time is because of this. Your 5th injector is firing fuel into the main air stream flow. This air will be packed with fuel. As your valves open for the next cylinder about to fire, the vast majority of the air/fuel mix will be forced into the direction of the air flow, which is the cylinder with the open valves. This can be any cylinder and not just the centre 2. There will be a bit of fuel drop out but that is totally unavoidable and it can happen on any of the cylinders.

With the tubular manifold, this means more flow or gases. Tis means that there is an even GREATER demand for fuel on the MFI. This proves that the MFI is capable of at least fueling for 205 at the wheels which will be about 240 at the flywheel.

Ad4m RST

No you won't...

MFI is good for 250hp anyday, Oranoco will soon be in to defend it