Ebay item Link

http://cgi.ebay.co.uk/SARD-RACING-800cc-FUEL-INJECTOR-MR2-WRX-3SGTE-EJ20-2JZ_W0QQitemZ8022557024QQcategoryZ72205QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

 

HI all thinking of purchasing these for my Zed! They are low resistance and fit the Vg30dett. i have Heard they are more reliable than Venom injectors.

The question is these injectors apparrently require an Injector coller and resister! is this true?

Has anyone on this Forum fitted or had these fitted to there Zed and had any problems with fitting or running of these sard injectors?

Sard 800 63564's are high resistance but still require a collar for some reason!

Sard Direct link http://store.racerwheel.org/under-the-hood-fuel-system-fuel-injector-sard.html

:)

Why do you want them? To start there are only 4 of them...

stick with Nismo 555s unless you really need bigger, then go with either 740 or the Border 850 set. FYI the border set does use SARD injectors.

Don't forget you'll need to get your ECU reprogrammed too.

Why do you want them? To start there are only 4 of them...

stick with Nismo 555s unless you really need bigger, then go with either 740 or the Border 850 set. FYI the border set does use SARD injectors.

Don't forget you'll need to get your ECU reprogrammed too.

I wanted 800's and if you read the ebay link it states four but he can supply six!

I know venom are bad but i have not heard anything bad about Sard products.

Still would like to know why they need collars. :)

not sure about the collars, but nothing wrong with Sard products. I have them myself as part of the border kit :)

thats a good price.. what was the damage for 6? im looking at bigger injectors, and dont want to get 555cc just to have to change then 12months down the line!

 

so anyone know how much work involved in fitting them?

Nothing wrong with Sard products and if you get the right ones they do not need a resistor, 800cc injectors unless you are planning a to sepnd a lot of money on your zed is a bit overkill!

Nothing wrong with Sard products and if you get the right ones they do not need a resistor, 800cc injectors unless you are planning a to sepnd a lot of money on your zed is a bit overkill!

HI Mark

As you know spending a lot of money on your zed is just one of the Burdens of owning one!

You need Deep pocket's when owning a Z32 :)

thats a good price.. what was the damage for 6? im looking at bigger injectors, and dont want to get 555cc just to have to change then 12months down the line!

 

so anyone know how much work involved in fitting them?

Well the link for Sard injectors direct list them at $109 each which is around £64 each plus Shipping.

So six injectors is only around £370 plus tax at 6.5% plus Shipping which if i remember correctly is Around £20 4-6 days.

Plus import duty's if Required!

Still quite a good price as dollar is still weak.

550's are same price as 800's

And even though 800's may be an overkill you could fit them instead of 550's just incase in the future you decide to go for higher BHP!

It would do no harm to fit higher flow capacity injectors even if you don't use them to there full potential as they cost the same. :)

It would do no harm to fit higher flow capacity injectors even if you don't use them to there full potential as they cost the same. :)

 

I was wondering that.... so 800cc will work just fine and dandy if they are only working....... say..... 30%?

will they flow ok? just wondering why people would bother with 555cc if 800cc work just as well for the same price!, keep me posted on this (Z)Master if you would or PM me when you find out, may be cheaper to buy 12! ohhhhh could do a group buy!! would prob be better on post as well

I was wondering that.... so 800cc will work just fine and dandy if they are only working....... say..... 30%?

will they flow ok? just wondering why people would bother with 555cc if 800cc work just as well for the same price!, keep me posted on this (Z)Master if you would or PM me when you find out, may be cheaper to buy 12! ohhhhh could do a group buy!! would prob be better on post as well

Pm John Dixon as he deal's with remaping Ecu's and is very helpfull :)

Our stock injectors dont max out until you raise the boost pressure above stock.

They probably only run to a max of 70-80% at full throttle most of the time with stock boost setting.

The Ecu can be re-maped to what ever spec you want to run or how you want it to perform.

the reason there are different sized injectors is because its easier to control. as a quick analagy, if somone told you to put a pint of water in a bowl, it would be easier using a 1 litre measuring jug that it would be slopping some out of a bucket. Not an ideal analagy i know but you get the picture, and i'm off to bed so i cant be nothered going into detail.

if youre goin to go with bigger injectors you might want to get a piggy back fuel controller such as an emanage to fine tune it.

iv got a BLITZ ecu at the moment, how would i tune it?

There is a downside to fitting bigger injectors like 800cc!

 

1. there is not a map off the shelf for one and you will have to get a custom chip for one!

 

2. The idle stability is not that easy to maintain and a lumpy idle might ensue depending on the ability of the tuner.

 

3. If you are worrying about the cost involved between upgrading from 555 injectors to 800, then this is small change when considering the £10,000 you would have to spend when to use the 800cc injectors to the their full capacity.

 

Not trying to sound like I am on a downer, just trying to give some indication of what is involved :(

I was wondering that.... so 800cc will work just fine and dandy if they are only working....... say..... 30%?

will they flow ok? just wondering why people would bother with 555cc if 800cc work just as well for the same price!, keep me posted on this (Z)Master if you would or PM me when you find out, may be cheaper to buy 12! ohhhhh could do a group buy!! would prob be better on post as well

 

Simply cos unless yer going for "serious" bhp and i mean like over 600+ big ones, bigger is not always better :) Marks raised some good points there :bow: and am sure there is the odd one or two more

smithy

Also, as an addition to Mark's comments:

the stock fuel pump won't be able to flow over 3600cc/min, (divided by 6 : 600cc per cylinder)...so a single stock pump will not be able to flow enough fuel for 800cc injectors running on max. dutycycle.

Also, as an addition to Mark's comments:

the stock fuel pump won't be able to flow over 3600cc/min, (divided by 6 : 600cc per cylinder)...so a single stock pump will not be able to flow enough fuel for 800cc injectors running on max. dutycycle.

Thats a good point, but what you can do is buy (or make) an adjustable voltage amplifier to increase the voltage to the pump, then when you need the extra fuel just switch it on, so no need to keep it running at the high voltage all the time, i have had the standard pump running at 15.0v with no probs, but the pump does get warmer after about 30mins, so its not advisable to keep it on all the time.

some good points there guys, spot on, think i may go for 555cc then if it will cost silly money to get a chip mapped etc as i prob would never use them to there full, how much (ball park) BHP can you get out of 555cc?

although the fuel pump thing is intersting, does MAC know? i know he is having probs with fueling as he is just about to fit a 2nd pump! :bow:

for a 6 cylinder engine running standard fuelpressure (3bar), injector size multiplied by 0.9 roughly translates directly to maximal achievable power at the wheels

so: stock inj. (370cc) --> approx. 330hp, 555cc -> approx. 500 hp

 

if you increase fuelpressure, the max. flow and achievable power increases.

Increasing fuel pressure to 4bar results in a flow increase of roughly 20%.

so, 370cc@4bar -> approx. 400cc, 555cc@4bar -> approx. 600cc

note1: increasing fuelpressure requires remapping of the chip

note2: when running 555's at 4bar fp you will run at the edge of the fuelpump's capacity once the injectors are running on full dutycycle.

note2: when running 555's at 4bar fp you will run at the edge of the fuelpump's capacity once the injectors are running on full dutycycle.

 

some more good points, so when you start to run out of fuel supplied by the pump increase the voltage to it to get some more fuel, but then you are restricted by the size of the fuel lines to the filter and injectors (over 600BHP)???? so get your fuel lines replaced with 12mm+ bore fuel lines, its never ending????.

 

I have used this in the past on other cars that were having probs with the pump and had some great results,

http://www.alternativeauto.com/waterbox/wb_archives/boostapump.html

 

And the price is good, i think a uk company now do a simular item???

>> http://www.alternativeauto.com/waterbox/wb_archives/boostapump.html

 

Yes, heard some good stories about these as well...also when used on Zeds.

But as you point out when running on the edge of the pump's capacity in most cases requires other modifications first or you will run into other issues first.

The fuel supply and return lines need to be upgraded/replaced to at least 10mm diameter, a high flow fuelfilter needs to be used and the stock fuelrail hasn't got the best design for maximum flow either.

 

a simple trick to see if your pump/lines/filter are capable of flowing enough fuel for 550+ hp is by running a line straight from the fuelfilter into an empty 5ltr jerrycan, turn ignition on and see if the pump is able to fill it with at least 3.5 ltr of fuel in 1 minute.

Also, as an addition to Mark's comments:

the stock fuel pump won't be able to flow over 3600cc/min, (divided by 6 : 600cc per cylinder)...so a single stock pump will not be able to flow enough fuel for 800cc injectors running on max. dutycycle.

Its not that expensive to get an aftermarket fuel pump for the Z32 or get custom made fuel lines. :)

Might be a good idea just to dump the fuel lines and stock pump even if fitting 550's so there is less restrictions.

http://store.summitracing.com/default.asp?Ntt=300zx+fuel+pump&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp&x=38&y=13

http://www.coximport.com/auto-parts/prods/HP730-465.html

The simple points being made here though fella are, 555's will happily flow enough for the mid 500 bhp level and only require a basic 555 chip, for that little bit more bhp, then yes a couple more basic mods. Now if yer seriously thinking of going well and beyond mid 500bhp level then yes the sard bigger injectors and all the added mods to enable them to be used correctly, that said, if yer going that high in BHP, have bloody deep pockets :) cos yer gonna need em. So in short why mess with various other mods to get the Sards to be used correctly, when 555's are more than ample for more than the average modder :bow:

Cheers

smithy

Its not that expensive to get an aftermarket fuel pump for the Z32 or get custom made fuel lines. :)

Might be a good idea just to dump the fuel lines and stock pump even if fitting 550's so there is less restrictions.

http://store.summitracing.com/default.asp?Ntt=300zx+fuel+pump&searchinresults=false&Ntk=KeywordSearch&DDS=1&N=115&target=egnsearch.asp&x=38&y=13

http://www.coximport.com/auto-parts/prods/HP730-465.html

 

 

I wouldn't touch any of venoms stuff with a barge pole, particularly something as crucial as a fuel pump ;)

I wouldn't touch any of venoms stuff with a barge pole, particularly something as crucial as a fuel pump ;)

Hey Mate i would't either they were just examples of some pump's available. :)