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 Post subject: injectors
PostPosted: Sun Nov 05, 2006 5:28 pm 
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I currently magaed to accquire 8 brand new mini cooper-S injectors(the 1.6L supercharged version) is it possible to fit them into my ride? if not i'll have to get rid of them which is quite a shame :?


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PostPosted: Sun Nov 05, 2006 7:28 pm 
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So long as they are top feed, with the right impedance and O-ring diameter you will be ok!

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PostPosted: Tue Nov 07, 2006 9:39 am 
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waylow wrote:
So long as they are top feed, with the right impedance and O-ring diameter you will be ok!


will require a remap of ecu to get it running properly. unless by some chance they are Identical to gti injectors... :shock:

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PostPosted: Tue Nov 07, 2006 10:05 am 
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SOBIL wrote:
waylow wrote:
So long as they are top feed, with the right impedance and O-ring diameter you will be ok!


will require a remap of ecu to get it running properly. unless by some chance they are Identical to gti injectors... :shock:


if they have a different flow rate to GTi injectors you will require a remap or some playing around with fuel pressure if you dont have a tunable ECU.

If you go on Mini forums in UK Im sure you will find a the flow rates. Stock GTi injectors (depending on where you read the info) are 2.2 Ohm and flow around 180~200.

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2003-2005 Mk3(retired)- EC 1:54.6 , Wakefield 1:13.14 , OP (short) 52.00 , OP GP 1:24.40


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PostPosted: Tue Nov 07, 2006 11:02 am 
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tekkie wrote:
Stock GTi injectors (depending on where you read the info) are 2.2 Ohm and flow around 180~200.


GTi injectors flow 265cc@2.5 Bar (stock regulator)

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PostPosted: Tue Nov 07, 2006 2:00 pm 
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see thats another number again.

Its the 1st time I have seen this figure listed anywhere.
If thats the case. Great flow rate. Is that the GTi (Cultus) sport or stock GTi ?

Would you mind sharing the injector part number?

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2008: Mk1 TAR car, stock engine, open diff - 1/4mile 14.774 @ 91mph

2006: Mk1- yeah well at some stage to go on track...
2003-2005 Mk3(retired)- EC 1:54.6 , Wakefield 1:13.14 , OP (short) 52.00 , OP GP 1:24.40


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PostPosted: Tue Nov 07, 2006 2:24 pm 
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from the Mk3 workshop manual.
59~72cc/15 sec = 236~288/min

from Mk1 workshop manual
36~44cc/15 sec = 144~176/min


from TS discussion on injector flow rates.
~170
http://www.teamswift.net/viewtopic.php?p=184543

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2008: Mk1 TAR car, stock engine, open diff - 1/4mile 14.774 @ 91mph

2006: Mk1- yeah well at some stage to go on track...
2003-2005 Mk3(retired)- EC 1:54.6 , Wakefield 1:13.14 , OP (short) 52.00 , OP GP 1:24.40


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PostPosted: Tue Nov 07, 2006 3:43 pm 
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That thread you mention is about the MK4 Swift.

The MK3 has the same injectors as the jap spec cultus, the Hitachi JS29-1 with a flow rate of 290cc/min at 3 BAR. Somehow, the car has a 2.5 BAR FPR, and the flow rate for this pressure level is 265cc/min, which is the average flow between the two values (min-max) shown in the manual.

(236 + 288)/2 = 262cc

The GTi MK2 has physically different injectors, with a plastic tip, but flow the same. I've heard that spray pattern is different tho.

It is known that the stock injectors can flow enough to produce 160HP at ~85% duty cycle... And this power figure is impossible to achieve with 180 or 200 cc/min injectors.

From my turbo project thread:

Image

Image

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PostPosted: Tue Nov 07, 2006 5:05 pm 
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Sorry 4 banger, this is a little off topic

Caarlo,

Is that 160fwhp or at the flywheel? I currently am getting around 130hp at the front wheels and wondering how much head room I have with the standard injectors.

Also is bumping up the fuel pressure to 3 Bar going to muck up economy at lower rpm, ie. is it pushing too much fuel or can the stock computer accomodate this?

thanks


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PostPosted: Tue Nov 07, 2006 5:09 pm 
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FlyingGrape wrote:
Sorry 4 banger, this is a little off topic

Caarlo,

Is that 160fwhp or at the flywheel? I currently am getting around 130hp at the front wheels and wondering how much head room I have with the standard injectors.

Also is bumping up the fuel pressure to 3 Bar going to muck up economy at lower rpm, ie. is it pushing too much fuel or can the stock computer accomodate this?

thanks


3 bar shouldnt be an issue, ive been running around 5.5 bar (by mistake) for a couple of weeks now, fuel economy is nowhere to be seen lol, but the injectors are still fine ;)

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 Post subject: Re:
PostPosted: Mon Jun 16, 2008 10:34 pm 
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Caaarlo wrote:
That thread you mention is about the MK4 Swift.

The MK3 has the same injectors as the jap spec cultus, the Hitachi JS29-1 with a flow rate of 290cc/min at 3 BAR. Somehow, the car has a 2.5 BAR FPR, and the flow rate for this pressure level is 265cc/min, which is the average flow between the two values (min-max) shown in the manual.

(236 + 288)/2 = 262cc

The GTi MK2 has physically different injectors, with a plastic tip, but flow the same. I've heard that spray pattern is different tho.

It is known that the stock injectors can flow enough to produce 160HP at ~85% duty cycle... And this power figure is impossible to achieve with 180 or 200 cc/min injectors.

From my turbo project thread:

Image

Image


Sorry for bringing an old topic back, but just to add information, the DSM injectors Caaarlo has the flow rate are of Automatic 1st Gen Turbo DSM. The MT model has 450cc injectors.

This is a good thread for those looking injector info.


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 Post subject: Re: injectors
PostPosted: Mon Nov 23, 2009 7:25 am 
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does the js29-1 is interchangeable with the two others or the head is not the same with these injector ?

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 Post subject: Re: injectors
PostPosted: Mon Nov 23, 2009 10:04 am 
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They are interchangable. But the Supra injectors have a different plug so you will require the injector loom from the supra also. I think I used the plugs from a 3sgte as I couldn't find supra ones.
Here's a link I've found to some other plugs that will fit the supra injectors....
http://www.toymods.net/forums/archive/i ... -5410.html


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