primary inj

[asp]

is it worth me keepin 850cc primarys or should i get smaller 1s?only usein them as 1300 have been put in,
id like 2 no what u lot have 2 say cos iv got my datalogit & the wideband i will b getting soon, so you no what that means,
r 850s a bitch 2 set up for primarys cos there a bit big?
would i lose much if i popped the 550s back in insead of the 850s

cheers peeps

asp    

[antnicuk]

I had 1500 2nds and 850 firsts and still hit 80 % duty cycle at 1 bar on a ported engine.   I found no problem with having the 850 primaries although someone did tell when they went back to 550s that the pick up was better.
Suck it and see.
regards
tony

[asp]

u say u had.what do u hav now?

will 550 n 1300 get about 400 brake,thats all i was planin on tryin 2 get any way

asp

[antnicuk]

I had,  the car still HAS, unfortunately we are no longer together,  it makes me very sad but we had to go our seperate ways. Somebody else is enjoying 440 bhp, although i dont envy them in this weather.    I didnt seem to make too much difference on fuel economy until you booted it.

Good luck,
regards
Tony

[antnicuk]

sorry, just read the last bit,   I\'m not entirely sure but you may just about get 400 fwhp but i would think you will be pushing it.  

The stock car has 2800cc worth of inj flow, you will have 3600,  you can only just squeeze just about 300 fwhp from the stock set up, you want 30 % more power and have 32% more injector flow, so it will be tight and you will be close to maxing out your duty cycle,    all this is dependant of course on the rest of your set up, and making sure you have sufficient fuel from the pump.   As the 850s are free i would use them just to make sure as you always want more later and saves blowing up your engine.

regards
Tony
ps,
i\'m sure one of the tuners will give some scientific answer that will prove me wrong but mine worked.

[asp]

i think my set up is ok for 400. single turbo n all that, fuel is deliverd by a wallbro 255,i was jus makin sure,il leave the 850 in there now,

who mapd urs for 440?

cheers asp

[antnicuk]

WOAH............ did you say walbro 255.

I bought one for my application but it looked a bit weedy so i decided to test its flow.  I connected the 255 and the stock one and ran them for a set time to see how much more it flowed.  I was shocked to see it only flowed about 10% more than the stock pump so i used both.  One pump for the secondary rail and the stock pump the prim rail.  It worked well.

I would sell the walbro and go to Re Worx and get a bosch pump, they are a little over a 100 quid and quickly available,  fit directly into the same place as the stock and definately flow enough.

If you look into the way the pumps are flow tested, they dont take into consideration the PSi the pump is creating to flow what it claims it can.  I think the 255 can only flow that much at something like 90 psi which is way too much,  you need something that will flow that much at 43 psi ish.

For 60 odd quid, it is piece of mind.  As i\'m sure you are aware, you can only run lean once.

[asp]

sorry been on hols 4 a week,

i thought wallbro 255 r good 4 400 to 500 bhp,
i mite get anather 1 then.
been on the phone to 1 of our uk tuners,bout primary inj,
for me to use 850s as primarys properly i will need 600 odd bhp.
so cos iv only got a small t04 and was only look at gettin 400 bhp i was told 2 dich the 850s,

oh yea the wallbro is small i thought the same as u wen i got mine.

asp

[antnicuk]

the problem with speaking with the tuners is that each one will give different ideas.  Try another one and they will say use them.  I was told by a tuner to use them and i only had a to4e.    You can always try it with out, monitor your injector cycle (very closely) and change them if you need.

[bnaellis]

get the 850\'s  fit them in primaries the car will run fine with no problem at all no bucking or anything of the sort at all. I have driven two cars with 850\'s one I did myself which I am currently driving and another that was already done both drive as smooth as a stock twin turbo literally no bucking  or any problems at all.
But I know not everyone has this experience.

[Ed_RX7]

I\'ll second what brian said ...i had 850\'s in primary and secondary with a to4e on a large streetport and had no problems....now have a hybrid gt40 and still runs sweet:D

[asp]

im losein my head i think,,,i got 2 many thing on the go, bought me a datalogit,aint got any time to use it cos work is pickin up.
im jumpin the gun a bit,gona get all the ather thing out of the way,so i dont get this cum home thing and think,oh il do this n il do tha,,them u go to work n stay on after n work on a peugeots,,and i jus bought an mi16 last nite 2,what was i thinkin.

gona take me rx 2 ross in the new year,,tryin 2 run a concrete company and hav the no how,bout tunein n stuff aint workin 2 well,,and i did want 2 do it my self 2,leave it 2 some 1 who nose i think,

im gona retire 4 a while n sort my out yard,peugeots allways luvd em,but time 2 go now,


cheers guys

[antnicuk]

what did you say??:confused:

[88GT-R]

Originally posted by antnicuk
WOAH............ did you say walbro 255.
 

There are 2 series of walbro for our cars..low pressure and high. I was forwarned on which part number to get. Is it possible you had the low pressure one?

John
88 GT-R

[asp]

Originally posted by antnicuk
what did you say??:confused:

sorry dude
im gettin well strest out,i cant stop buyin cars,
makin a quick buck fixin cars has 2 stop till the rex is done,
cos i got the space to store a few cars,i did
now i need the space 4 work,the cars gota b fixt aslo im tryin 2 sort me rx out at the same time,
im gettin strest out throu no fault of my own
the info iv been gatherin 4 a while is goin in one ear by passin my brain n goin out the ather ear,cos iv got to much to do.
so ill leave the rx till iv sorted my self out,

some one should open a agony aunt collum on this site so i can talk crap in there
:rollin
dont worry i confuse my self half the time