what injectors or 8 injectors would u use for 500bhp?
#1
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what injectors or 8 injectors would u use for 500bhp?
pretty much as above, spoke to a fellow who is using 8 dark greens for his 500bhp 4x4 cosworth.
or i'm thinking would it be better to use 4 big flowing injectors with decent spray pattern for 500bhp?
any idea?
cheeRS
or i'm thinking would it be better to use 4 big flowing injectors with decent spray pattern for 500bhp?
any idea?
cheeRS
#5
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Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
Its a no brainer IMHO!
#6
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PS
Plus as well as being potentially lethal to the engine, its also more expensive to implement due to needing a completely custom or rs500 plenum and a second fuel rail etc, where as 500bhp on 4 injectors just needs a couple of hundred quid of "yeovil" or "swedish" plenum and bobs your uncle!
Plus as well as being potentially lethal to the engine, its also more expensive to implement due to needing a completely custom or rs500 plenum and a second fuel rail etc, where as 500bhp on 4 injectors just needs a couple of hundred quid of "yeovil" or "swedish" plenum and bobs your uncle!
#7
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Originally Posted by Chip-3Door
Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
Its a no brainer IMHO!
Cost wise, there is no question that 4-injectors is best, but if you had the RS500 set-up, I would use this .
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#8
PassionFord Post Troll
Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
New ecu, new plenum required....
Cheaper to buy 4 siemens injectors and have it mapped correctly, you will get much better fuel econmeny to
#9
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Originally Posted by Mike Rainbird
Originally Posted by Chip-3Door
Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
Its a no brainer IMHO!
Cost wise, there is no question that 4-injectors is best, but if you had the RS500 set-up, I would use this .
Even at high boost high load I know of people who have had a single injector fail on a 4 injector setup and NOT had a meltdown, but I dont even know anyone who knows anyone who has got away with it on 8, carnage is more or less guarenteed.
Going out and spending a whole load of extra money just to make your car more likely to fail is completely stupid.
Fair enough if you have an rs500 plenum and rail already there is some logic in using it for originality's sake but personally I would leave 4 yellows in the back set and just run 1000cc on the front if I had to leave it in there for appearances sake!
#11
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I run a Mountune roller barrell intake set-up . I tried to buy Martins old 8-injector one that he sold to Oscar in Holland, but at that time, he wouldn't sell it. Ian Sibbert put me on to another one, but unfortuantely it was a four-injector arrangement, and as beggers can't be choosers, I bought this.
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
#13
Testing the future
Originally Posted by Mike Rainbird
If it comes off at high boost / high load, same effect even on a 4-injector car .
#16
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Originally Posted by Mike Rainbird
I run a Mountune roller barrell intake set-up . I tried to buy Martins old 8-injector one that he sold to Oscar in Holland, but at that time, he wouldn't sell it. Ian Sibbert put me on to another one, but unfortuantely it was a four-injector arrangement, and as beggers can't be choosers, I bought this.
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
I know now that you are on a T6 and rollers and that T6 can detect an injector going down and hence you wont the get problems that people do like my friend who's harvey gibb 8 injector setup melted the piston as a result of an injector failure.
If you can afford to go the whole hogg and do 8 injectors properly, there are gains to be had, but the cost for a good 8 injector setup (including mapping and T6 etc) is 4 grand or so realistically IMHO
#17
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Originally Posted by GARETH T
8 is great
ive never heard of an injector clip falling off anyway
ive never heard of an injector clip falling off anyway
Well II have, that is unless Harvey Gibbs simply forgot to fit an injector clip on one of the 8, and im sure Mike will tell you that isnt going to have happened, so it MUST have just fallen off.
#19
Professional Waffler
Originally Posted by Mitsy FQ
the rs500 plenum is worth having even on a standard car I don't think the topic was about pectel t6 and roller barrels
your stuck in the past, with old technology
#20
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Originally Posted by Mitsy FQ
the rs500 plenum is worth having even on a standard car I don't think the topic was about pectel t6 and roller barrels
#21
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Originally Posted by GARETH T
Originally Posted by Mitsy FQ
the rs500 plenum is worth having even on a standard car I don't think the topic was about pectel t6 and roller barrels
your stuck in the past, with old technology
His engine morphing routine is obvioulsy slow to catch up.
This is my sierra bay now:
complete with 4 modern injectors
#24
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Re: what injectors or 8 injectors would u use for 500bhp?
Originally Posted by RScrew69
pretty much as above, spoke to a fellow who is using 8 dark greens for his 500bhp 4x4 cosworth.
or i'm thinking would it be better to use 4 big flowing injectors with decent spray pattern for 500bhp?
any idea?
cheeRS
or i'm thinking would it be better to use 4 big flowing injectors with decent spray pattern for 500bhp?
any idea?
cheeRS
#28
PassionFord Post Troll
Originally Posted by Mike Rainbird
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
And can ahmed not map these and thats actually the reason ?
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Originally Posted by dingy
Originally Posted by Mike Rainbird
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
And can ahmed not map these and thats actually the reason ?
#30
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Originally Posted by Nash
Seeing as Ahmed built and engine and ran it on 8x 55lbs i am pretty sure he can map them Dingy.
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Originally Posted by Stavros
Originally Posted by Nash
Seeing as Ahmed built and engine and ran it on 8x 55lbs i am pretty sure he can map them Dingy.
#34
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Originally Posted by Alan s1
Originally Posted by Stavros
Originally Posted by Nash
Seeing as Ahmed built and engine and ran it on 8x 55lbs i am pretty sure he can map them Dingy.
Alan s1 55lb blacks are alot better than greys, better spray pattern and slightly bigger. The only reason i got Ahmed to map mine on Greys was because i already had a set ready to use.
#35
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Originally Posted by Chip-3Door
Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
Its a no brainer IMHO!
Then clearly the clip was either not put on or somebody had played with it, In all my years I have never had a injector clip come off ever,
8Inj are deff better than 4 for spray and placement if used further away i.e RS500,
The question is if it is worth the effort yes it is but the added cost and complexity makes it not realy worth the effort unless you are looking for the last HP,
I choose to run 4 but have no problem running 8inj if asked.
Mark
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[quote="Nash"]
55lbs are about same as greys arnt they though?
Yes as Stu said to me when i asked about a set up using Greys ect he said about going 1 step better and use the "blacks" 55lbs
Stavros I just replied that Ahmed can map modern type Injectors. When i asked Ahmed about newer Large injectors, he said he could map them but for the power i wanted it was totally useless.
Alan s1 55lb blacks are alot better than greys, better spray pattern and slightly bigger. The only reason i got Ahmed to map mine on Greys was because i already had a set ready to use.[/quote]
I was going to go from 803's to Greys and just wanted to check with Stu brfore hand as i had spoken about a chip for the 803's from him
Thats when he said about going for the 55lb if i had'nt got aset of Greys already
(Still not got around to getting a chip sorted or tho i have the "Blacks" thats about where my money ran out for the car
Originally Posted by Alan s1
Originally Posted by Stavros
Originally Posted by Nash
Seeing as Ahmed built and engine and ran it on 8x 55lbs i am pretty sure he can map them Dingy.
Alan s1 55lb blacks are alot better than greys, better spray pattern and slightly bigger. The only reason i got Ahmed to map mine on Greys was because i already had a set ready to use.[/quote]
I was going to go from 803's to Greys and just wanted to check with Stu brfore hand as i had spoken about a chip for the 803's from him
Thats when he said about going for the 55lb if i had'nt got aset of Greys already
(Still not got around to getting a chip sorted or tho i have the "Blacks" thats about where my money ran out for the car
#37
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Originally Posted by Mark Shead
Originally Posted by Chip-3Door
Originally Posted by Mike Rainbird
I had eight x 803 on my 500bhp Sapphire. They give a fantatsic spray pattern despite what Chip says / thinks .
Its a no brainer IMHO!
Then clearly the clip was either not put on or somebody had played with it, In all my years I have never had a injector clip come off ever,
8Inj are deff better than 4 for spray and placement if used further away i.e RS500,
The question is if it is worth the effort yes it is but the added cost and complexity makes it not realy worth the effort unless you are looking for the last HP,
I choose to run 4 but have no problem running 8inj if asked.
Mark
#38
...they just cant come off if it is on the plug...to have one fall off means either the plug had no clip or it had no clip..lol
...8 injectors looks the bollocks either in wrc siamese form or rs500 ...deffo get a better spray pattern...but personally id always go 4 bigguns as i know these can be mapped no probs...and i am tight ..unlike mikes anal passage
...8 injectors looks the bollocks either in wrc siamese form or rs500 ...deffo get a better spray pattern...but personally id always go 4 bigguns as i know these can be mapped no probs...and i am tight ..unlike mikes anal passage
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so rather than trying to source a 500inlet or going after another 8 injectors, it would be best if i just used 4 siemens black 83lbph injectors to supply enough fuel to push the car over the 500bhp bracket.
would the 83lbph black injectors be best all round to supply the fuel for 500bhp?
or is it best to use the 55lbph
would the 83lbph black injectors be best all round to supply the fuel for 500bhp?
or is it best to use the 55lbph
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Originally Posted by dingy
Originally Posted by Mike Rainbird
I would have actually preferred the 8-injector set-up, but that is because Ahmed has always drummed into me the fact that the spray patterns for smaller injectors are always far superior to the larger injectors currently favoured.
And can ahmed not map these and thats actually the reason ?
definiteley wernt keen at all and thats a fact and only a few weeks ago to