740cc injectors....a few questions with pics
14 May 2012, 01:46 PM
#1
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740cc injectors....a few questions with pics
hi,i have just managed to source a set of lateral flowed 740cc injectors to fit my 1998 v4 sti type r.
i have a few questions.
will they fit straight on with what is in the pics or will i need an adapter kit from carl davey?i believe my oe injectors are ph 1.5?
one of the pins or whatever the name of it is, in the picture looks slightly bent/damaged?(on the top of injector) is this an issue?,i dont even know what it is for?
can someone please explain my situation with these.
thanks...here are some pics.
i have a few questions.
will they fit straight on with what is in the pics or will i need an adapter kit from carl davey?i believe my oe injectors are ph 1.5?
one of the pins or whatever the name of it is, in the picture looks slightly bent/damaged?(on the top of injector) is this an issue?,i dont even know what it is for?
can someone please explain my situation with these.
thanks...here are some pics.
14 May 2012, 08:06 PM
#3
They're the short-pintle Phase 2s (MY99/00).
So you WILL need the Carl Davy adaptor kit, to fit them to your Phase 1.5 rails.
I take it a 20g-based tubby is on the horizon then?
Oh, and make sure you team them with the correct sparkplugs, and you're gud't'go!
So you WILL need the Carl Davy adaptor kit, to fit them to your Phase 1.5 rails.
I take it a 20g-based tubby is on the horizon then?
Oh, and make sure you team them with the correct sparkplugs, and you're gud't'go!
Last edited by joz8968; 14 May 2012 at 08:08 PM.
14 May 2012, 08:09 PM
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14 May 2012, 08:12 PM
#5
However, the yellow plastic pintles (the end 'noses' that do the spraying) of yours are weird fluted things.
The Subaru ones should look be like in the above photo (light grey in this case) - see the difference in design?
Whether or not it makes a difference though, not sure.
Last edited by joz8968; 14 May 2012 at 08:16 PM.
14 May 2012, 08:18 PM
#6
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1.they will fit with carl davey adaptor.(thats fine)
2. what about that bit of damage?
3.told they were lateral flowed to 740?
how can i tell wether these are going to be ok or not?
14 May 2012, 08:28 PM
#7
Do you have any documentation proving Lateral's work? If not, then your just going on faith of the seller.
Not necessarily anything to worry over (I bought my 550cc second hand that had allegedly be ASNU cleaned and flow-matched to within 2% of each other). Upon mapping JGM confirmed that they were indeed flowing like 550s.
).
Not sure whether that bent pin is anything to be concerned about. Your best bet is to email or PM APIDavid - he'll look at your pics and tell you all you need to know, as regards the apparent damage/their suitability or otherwise for the Impreza...
Not necessarily anything to worry over (I bought my 550cc second hand that had allegedly be ASNU cleaned and flow-matched to within 2% of each other). Upon mapping JGM confirmed that they were indeed flowing like 550s.
).Not sure whether that bent pin is anything to be concerned about. Your best bet is to email or PM APIDavid - he'll look at your pics and tell you all you need to know, as regards the apparent damage/their suitability or otherwise for the Impreza...
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14 May 2012, 08:33 PM
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Do you have any documentation proving Lateral's work? If not, then your just going on faith of the seller.
Not necessarily anything to worry over (I bought my 550cc second hand that had allegedly be ASNU cleaned and flow-matched to within 2% of each other). Upon mapping JGM confirmed that they were indeed flowing like 550s.).
Not sure whether that bent pin is anything to be concerned about. Your best bet is to email or PM APIDavid - he'll look at your pics and tell you all you need to know, as regards the apparent damage/their suitability or otherwise for the Impreza...
Not necessarily anything to worry over (I bought my 550cc second hand that had allegedly be ASNU cleaned and flow-matched to within 2% of each other). Upon mapping JGM confirmed that they were indeed flowing like 550s.
).Not sure whether that bent pin is anything to be concerned about. Your best bet is to email or PM APIDavid - he'll look at your pics and tell you all you need to know, as regards the apparent damage/their suitability or otherwise for the Impreza...
well ive purchased the turbo and inj from the same seller,the injectors were going to be used on his p1.
the seller is a member on here,and hopefully trustworthy,would like to get a few opinions on the bent pin as i dont even know what it is or what its for,and now you have said it may not even be a subaru fitment injector??
14 May 2012, 08:37 PM
#9
Well, I actually said that the spraying plastic bit is a different design to OEM.
The rest of the injector is the correct pattern though. They will fit... But not sure whether they'll spray 'correctly' (seeing as that part looks different)...
That said, the pintle does have 2 spray holes, which is correct.
The rest of the injector is the correct pattern though. They will fit... But not sure whether they'll spray 'correctly' (seeing as that part looks different)...
That said, the pintle does have 2 spray holes, which is correct.
Last edited by joz8968; 14 May 2012 at 08:40 PM.
14 May 2012, 08:41 PM
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Well, I actually said that the spraying plastic bit is different.
The rest of the injector is the correct pattern though. They will fit... But not sure whether they'll spray 'correctly' (seeing as that part looks different)...
That said, the pintle does have 2 spray holes, which is correct.
The rest of the injector is the correct pattern though. They will fit... But not sure whether they'll spray 'correctly' (seeing as that part looks different)...
That said, the pintle does have 2 spray holes, which is correct.
ffs why cant anything just be straight forward?
15 May 2012, 11:38 PM
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They are Ph2 440cc injectors modified by Lateral Performance to 'V-Spray' 840cc @3Bar IIRC
Will require CD Adaptor kit to fit v3/4 fuel rail.
Send them to Mark@Lateral for ultrasonic cleaning + flow testing to confirm if the damaged pin is affecting operation
Will require CD Adaptor kit to fit v3/4 fuel rail.
Send them to Mark@Lateral for ultrasonic cleaning + flow testing to confirm if the damaged pin is affecting operation
16 May 2012, 06:05 PM
#17
I think it's 910cc these days.
But he looks like he has older ones when, presumably, a flow rate of 'only' 740cc was the order of the day (seeing as "740cc" was mentioned by the seller).
But whether they're 740, 840 or 910, anyone of them is more than enough to drive his 20g, with plenty of headroom to spare.
But he looks like he has older ones when, presumably, a flow rate of 'only' 740cc was the order of the day (seeing as "740cc" was mentioned by the seller).
But whether they're 740, 840 or 910, anyone of them is more than enough to drive his 20g, with plenty of headroom to spare.
16 May 2012, 06:23 PM
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could 840/910 be too big for a 20g?? or any turbo for that matter? is it bad to oversize injectors
have been looking at what injectors to go for with a 20g and have been leaning towards the modded lateral injectors
apologies for the thread hijack
have been looking at what injectors to go for with a 20g and have been leaning towards the modded lateral injectors
apologies for the thread hijack
16 May 2012, 07:06 PM
#20
A 20g would be 'perfect' on 650cc (or 740). Both won't be at anywhere near 100% IDC for the 20g's airflow i.e. no 'worry' of maxing out, like what 550cc could do (which seem to max at anywhere between c.380-420bhp in practice).
Although, as above, it's more desirable to match the 'correct' size injectors for the maximum potential airflow into the engine, it's not the end of the world if you have 'too big' injectors. This is especially true if you have a decent aftermarket ECU to drive them, or otherwise you could end up with, perhaps, rough idling. As a lesser ECU may have trouble controlling the pulse widths i.e. it may have trouble making said pulses short enough at idle/low running speeds to temper the innate high flow rate of large injectors...
So going the LP route is certainly the cheapest by far i.e. pick up a set of OEM yellow 440cc for £40-60 these days, and then £175 + VAT for the ASNU-cleaning/flowing to 910cc.
And you'll also be future proofed to about 600+ bhp to boot! lol
Last edited by joz8968; 16 May 2012 at 07:19 PM.
16 May 2012, 08:24 PM
#21
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update...
they are as mentioned above ph2 injectors,ive spoke to mark and yes they are modified lateral injectors and are 900cc.they are being sent to him so that they can be checked over before firment and mapping etc.
they are as mentioned above ph2 injectors,ive spoke to mark and yes they are modified lateral injectors and are 900cc.they are being sent to him so that they can be checked over before firment and mapping etc.
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