i know i have already asked this question once but now im ready to start collecting bits for whatever chioce of upgrade i decide to go for.

what im asking is what extra bits i need for certain upgrades and what upgrade is reccomended.
4 greys with l8 seemed to be popular last time i asked but is that all i would need,plus the obvious setting up.
also what about 8 green injectors which i saw on one last week.

what sort of engine work is reccomended for any upgrades on an rs500 or are they strong already?

i dont want to go stupid with it(famous last words),but what upgrades make what power.
i dont see the point in having a t4 and not getting some benefit.
ive had a 350 bhp 3 door and a 400+bhp sapph and would be happy with something along those lines (for now!!!!!)
thanks in advance guys
jay

 

Seems a shame not to use the 8 injector plenum when you have it. I would go six greens. I think you still need the extra wiring for them though not sure..

With the eight injectors runnig I would image an easy 380 BHP would be on offer without any other mods other than a map of course.

 

6 greens are not a good idea imo and would be a swine to map

 

i,d go for 4 greys and by coincidence i have 4 brand new ones on ebay this week....click sig link

 

Assuming the car is currently standard then if you were to go greys/L8 then you would only need a 3 bar map sensor, -31, pf09 tps + a minor wiring mod to the tps and of course a decent map/chip!

To go down the 8 injector route you would need the above plus an 8 injector Pectel/Collins baby board fitted to the ecu and of course 8 injectors.

Personaly i wouldn't bother with the 8 injector idea as it would be more costly than similar gains using more up to date methods using 4 injectors!

If the engine is standard the 1st thing i would do is put a decent head gasket on it and make sure everything is as it should be internaly before going too mad as regards power.

 

excellent advice Spadge

T4 , 4 greys should keep you happy for a while

 

yes i was originally going to fit a group a head gasket first of all then go down the 4 greys route with l8.ive already got the injectors,so all i need is a 3 bar,4x4 tps,and then get it mapped??????

just seeing what other options are out there for me before i commit myself.

 

Sorry but greys make a car run shite round town ( dont they ?? )
The 8 greens give superb " round town driveing " but also do the business when you give it large ,

If you have a 500 with the correct bits its not a expensive set up .

Paul

ps, thats what mine is running anyway

 

l8 grays on close loop drives very nice around town

 

Yes Gateth but is that with a t4 laggy as hell turbo ???

 

yes mate,,, robs car is a low comp t4 grays machine,, and it drives lovely

 

Well if you dont want megga power this seems the way to go then ,,

I will stick with my 8 greens tho

 

i like 8 myself,, but price for price its simply not worth doing

 

4 greys are safer as well if for some reason you loose the function of one of the grey injectors then the cylinder gets NO fuel and it wont really do any dammage. but if your running 2 greens per cylinder and one crokes it the cylinder is still getting fuel but only half what it needs hence... runs lean and bang!

mapping is sooooooo much more advanced now to what it was when the 8 injector plenumns where designed so there really is no need to use them.

be sensible. use 4 greys!

 

mapping my of improved, but not the reason why the rs500 inlet was made!

 

if the injector failed at full chat the piston would surley melt??

 

the only gain with that plenunm is the slightly less restrictive elbow. which he already has on his car so he gets the best of both worlds by using the flow caracteriskits of the 50 plenumn with moddern mapping on 4 greys

 

why do you think the new rally cross manifold has injectors at the mouth of the trumpets?

 

depends how sudenly it died if it died progresivly then your fucked either way no matter what setup your using but if say there was an electrical fault that cut the injector out stright away then running a single injector means you should get away with it. piston cant melt if there is no fuel to make a combustable mix.

 

completly off topic hear but jay i notice your in warrington and your a fordsport member? we have a meet at the toby cavery on the east lancs just off winick lane, the next meet is December 11th, come along if your free! sam

 

because it induces a better spray pattern forgot about that

still irrelivent though cause he has that manifold anyway

 

darren.cudd

is this for you? ?

 

I have 8 greens on my 500 and runs Ok wouldn't really tell it was 8 injectors!! But for my black car although I have the 500 manifold I am going to run 4 bigger injectors on an L8 to bring it to present day tech! I have been told by many a person that with mapping now a massive injector can be controlled very easily on closed loop so I would say go the modern route!!

Nick

 

well considering the original question was "what injector setup should i use" not "what manifold should i use?" then the question of should he change his manifold was never an option the question was what injector setup is best to use so have one back

 

take it like a man

 

take it like a bitch

 

just started to do the head gasket-of course all the bolts are solid!
bit of play in my t4 both ways so is there anyone close to me who can do a rebuild for me.also i have greys already but anyone got a l8 ecu,4x4 tps,3 bar map for sale?cheapish as im skint!!!!!!!

 

a tiny bit of side to side movement on your turbo is fine as long as it is tiny. its in and out play that you want to check. there should be none.

 

Be a shame to mod it too much Jay.

Maybe been better modding a 3 door instead as the 500 as its worth too much money to mod it too much.

All imo of course.

 

i was toying with keeping it standard,but dont think i could live with it after the cars ive had`

 

thats the problem Jay, you have been spoilt.

pity you could not put another engine in it and turbo etc...keep the original one original.

You don't want to start rebuilding the engine and the turbo.

 

some of the modern comments crack me up,

four large i.e 800cc injectors on a 500 plenum for over 500 bhp dates back to 1987

air injectors on the rs500 date back to 87 as well,

and as do though studding the block with ten studds from 87 again,

so it seams it all comes back, and then is called modern so wheres the new ideas then,

 

martin i didnt actually mention any of that stuff in your list. yes they used 4 injectors back in 87 but are you going to tell me they ran even half as smooth at low rpm's as they do now with modern management which has a much finer degree of control over fuel delivery ect ect especially with using closed loop on l8

 

yes i am,

four 800cc injectors,

its all down to the F1 bosche ecu

is closed loop new?

 

I think the comments should change to " it is now much cheaper and easier to do!" As I am sure you will agree those ECU's are not cheap!
I must admit Martin I was always under the impression the touring cars ran 8 injectors? but I never thought they ran that size, was that only certain teams and was that not later on than 87?

Nick